Merge pull request 'Modificaciones en filtrado y creada opción para marcar que un gasto/ingreso es un traspaso de cuentas' (#34) from dev into main

Reviewed-on: #34

expenses_manager/expenses/forms.py

@@ -27,6 +27,7 @@ class ExpenseForm(forms.ModelForm):
             "category",
             "account",
             "tags",
+            "is_transfer",
         ]
         widgets = {
             "date": forms.DateInput(format="%Y-%m-%d", attrs={"type": "date"}),
@@ -50,7 +51,7 @@ class AccountForm(forms.ModelForm):
 class IncomeForm(forms.ModelForm):
     class Meta:
         model = Income
-        fields = ["account", "name", "amount", "date"]
+        fields = ["account", "name", "amount", "date", "is_transfer"]
         widgets = {"date": forms.DateInput(format="%Y-%m-%d", attrs={"type": "date"})}
 
     def __init__(self, *args, **kwargs):

expenses_manager/expenses/migrations/0013_expense_is_transfer_income_is_transfer.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.2.10 on 2026-09-15 10:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('expenses', '0012_alter_account_options_alter_category_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='expense',
+            name='is_transfer',
+            field=models.BooleanField(default=False, help_text='Márcalo si este movimiento solo mueve dinero entre cuentas propias. No contará como gasto ni como ingreso en los análisis, pero sí afectará al saldo de la cuenta.', verbose_name='Es un traspaso entre cuentas'),
+        ),
+        migrations.AddField(
+            model_name='income',
+            name='is_transfer',
+            field=models.BooleanField(default=False, help_text='Márcalo si este movimiento solo mueve dinero entre cuentas propias. No contará como gasto ni como ingreso en los análisis, pero sí afectará al saldo de la cuenta.', verbose_name='Es un traspaso entre cuentas'),
+        ),
+    ]

expenses_manager/expenses/models.py

@@ -228,6 +228,16 @@ class Expense(models.Model):
         related_name="expenses",
     )
 
+    is_transfer = models.BooleanField(
+        default=False,
+        verbose_name="Es un traspaso entre cuentas",
+        help_text=(
+            "Márcalo si este movimiento solo mueve dinero entre cuentas propias. "
+            "No contará como gasto ni como ingreso en los análisis, pero sí "
+            "afectará al saldo de la cuenta."
+        ),
+    )
+
     created_at = models.DateField(auto_now_add=True)
 
     class Meta:
@@ -246,6 +256,17 @@ class Income(models.Model):
     name = models.CharField(max_length=150)
     amount = models.DecimalField(max_digits=12, decimal_places=2)
     date = models.DateField()
+
+    is_transfer = models.BooleanField(
+        default=False,
+        verbose_name="Es un traspaso entre cuentas",
+        help_text=(
+            "Márcalo si este movimiento solo mueve dinero entre cuentas propias. "
+            "No contará como gasto ni como ingreso en los análisis, pero sí "
+            "afectará al saldo de la cuenta."
+        ),
+    )
+
     created_at = models.DateTimeField(auto_now_add=True)
 
     class Meta:
@@ -370,6 +391,9 @@ class Goal(models.Model):
         if self.kind == self.KIND_SAVING:
             # Provisional: saldo de la cuenta asociada. Cuando exista el
             # módulo de inversiones, esta rama es lo único que hay que tocar.
+            # Ojo: aquí los traspasos SÍ cuentan. Mandar dinero a la cuenta de
+            # ahorro es precisamente cómo se progresa en un objetivo de ahorro,
+            # así que no filtres is_transfer en esta rama.
             return self.account.current_balance() if self.account else Decimal("0")
 
         if not self.category:
@@ -380,9 +404,11 @@ class Goal(models.Model):
         else:
             category_ids = [self.category_id]
 
+        # Pago y presupuesto miden gasto real, así que los traspasos entre
+        # cuentas propias no cuentan. La rama de ahorro de arriba es la opuesta.
         expenses = Expense.objects.filter(
             owner=self.owner, category_id__in=category_ids
-        )
+        ).exclude(is_transfer=True)
 
         start = self._period_start()
         if start:

expenses_manager/expenses/static/expenses/css/base.css

@@ -97,6 +97,31 @@ a.danger:visited,
     color: var(--color-danger-accent);
 }
 
+/* Escala tipográfica. Los márgenes van en rem a propósito: los del navegador
+   van en em y escalan con el tamaño de fuente, dejando huecos irregulares
+   entre secciones. */
+
+h1 {
+    font-size: 1.625rem;
+    font-weight: 600;
+    line-height: 1.2;
+    margin: 0 0 1rem;
+}
+
+h2 {
+    font-size: 1.25rem;
+    font-weight: 600;
+    line-height: 1.25;
+    margin: 1.5rem 0 0.75rem;
+}
+
+h3 {
+    font-size: 1rem;
+    font-weight: 600;
+    line-height: 1.3;
+    margin: 1rem 0 0.5rem;
+}
+
 /* ========================= */
 /* Topbar / navigation */
 /* ========================= */
@@ -273,7 +298,7 @@ a.danger:visited,
     margin-bottom: 1rem;
 }
 
-.dashboard-context h2 {
+.dashboard-context h1 {
     margin: 0;
 }
 
@@ -371,7 +396,8 @@ button[type="submit"]:hover,
     gap: 0.5rem;
 }
 
-.filters-main select {
+.filters-main select,
+.filters-main input[type="date"] {
     padding: 0.5rem 0.7rem;
     font-family: inherit;
     font-size: 0.95rem;
@@ -381,11 +407,18 @@ button[type="submit"]:hover,
     border-radius: 6px;
 }
 
-.filters-main select:focus {
+.filters-main select:focus,
+.filters-main input[type="date"]:focus {
     outline: 2px solid var(--color-focus-ring);
     outline-offset: 1px;
 }
 
+.range-notice {
+    margin-top: 0.5rem;
+    font-size: 0.9rem;
+    color: var(--color-text-muted);
+}
+
 .filters-advanced {
     margin-top: 0.5rem;
 }
@@ -707,6 +740,13 @@ tr:hover {
     color: var(--color-danger-text);
 }
 
+/* Etiqueta informativa, sin carga de error ni de éxito: marca un movimiento
+   como lo que es, no como un estado degradado. */
+.badge-neutral {
+    background-color: var(--color-chip-bg);
+    color: var(--color-text-muted);
+}
+
 .row-inactive {
     opacity: 0.55;
 }
@@ -898,7 +938,7 @@ tr:hover {
     box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
 }
 
-.settings-card h3 {
+.settings-card h2 {
     margin: 0 0 0.25rem 0;
 }
 

expenses_manager/expenses/templates/categories/form.html

@@ -5,7 +5,7 @@
 {% endblock %}
 
 {% block content %}
-    <h2>Editar categoría</h2>
+    <h1>Editar categoría</h1>
 
     <form method="post" class="app-form">
         {% csrf_token %}

expenses_manager/expenses/templates/categories/list.html

@@ -8,7 +8,7 @@
 
     <h1>Mis categorías</h1>
 
-    <h3>Nueva categoría</h3>
+    <h2>Nueva categoría</h2>
     <form method="post" class="app-form">
         {% csrf_token %}
         {% include "expenses/_form_fields.html" %}
@@ -17,7 +17,7 @@
 
     <hr>
 
-    <h3>Listado</h3>
+    <h2>Listado</h2>
     <div class="table-wrap">
         <table>
             <thead>

expenses_manager/expenses/templates/expenses/_date_range.html

@@ -0,0 +1,12 @@
+{% comment %}
+Campos del rango de fechas libre. Se incluye dentro de un <form method="get">.
+Espera date_from y date_to en el contexto.
+{% endcomment %}
+
+<label class="sr-only" for="dateFrom">Desde</label>
+<input type="date" name="date_from" id="dateFrom"
+       value="{% if date_from %}{{ date_from|date:'Y-m-d' }}{% endif %}">
+
+<label class="sr-only" for="dateTo">Hasta</label>
+<input type="date" name="date_to" id="dateTo"
+       value="{% if date_to %}{{ date_to|date:'Y-m-d' }}{% endif %}">

expenses_manager/expenses/templates/expenses/dashboard.html

@@ -7,16 +7,19 @@
 {% block content %}
     
     <section class="dashboard-context">
-        <h2>
+        <h1>
             {% if selected_account_obj %}
                 {{ selected_account_obj.name }}
             {% else %}
                 Todas las cuentas
             {% endif %}
-        </h2>
+        </h1>
 
         <p class="muted">
-            {% if selected_month %}
+            {% if range_active %}
+                Del {{ date_from|date:"d/m/Y"|default:"principio" }}
+                al {{ date_to|date:"d/m/Y"|default:"hoy" }}
+            {% elif selected_month %}
                 {{ selected_month }}/{{ selected_year}}
             {% else %}
                 Año {{ selected_year }}
@@ -66,6 +69,8 @@
                 {% endfor %}
             </select>
 
+            {% include "expenses/_date_range.html" %}
+
             {% if not period %}
                 <label class="sr-only" for="yearSelect">Año</label>
                 <select name="year" id="yearSelect">
@@ -94,35 +99,16 @@
 
             <button type="submit" class="btn btn-primary">Aplicar Filtros</button>
         </form>
+
+        {% if range_active %}
+            <p class="range-notice">
+                Mostrando del {{ date_from|date:"d/m/Y"|default:"principio" }} al
+                {{ date_to|date:"d/m/Y"|default:"hoy" }}. Los filtros de año, mes
+                {% if compare_suppressed %}y la comparativa {% endif %}no se aplican.
+                <a href="{% url 'dashboard' %}">Quitar el rango</a>
+            </p>
+        {% endif %}
     </section>
-    <script>
-        const yearSelect = document.getElementById('yearSelect');
-        const monthSelect = document.getElementById('monthSelect');
-        const hiddenPeriod = document.getElementById('hiddenPeriod');
-
-        function clearPeriodPreset() {
-            if (hiddenPeriod) {
-                hiddenPeriod.value = ""
-            }
-            document.querySelectorAll('.preset').forEach(btn => btn.classList.remove('active'));
-        }
-    </script>
-    <!-- <script>
-        document.querySelectorAll('.dashboard-presets  a').forEach(link => {
-            link.addEventListener('click', e => {
-                e.preventDefault();
-
-                const period = link.dataset.period;
-                const isActive = link.classList.contains('active');
-
-                if (isActive) {
-                    window.location.href = link.href;
-                } else {
-                    window.location.href = `${link.href}?period=${period}`
-                }
-            });
-        });
-    </script> -->
 
     <!-- ========================= -->
     <!-- KPIs -->
@@ -154,7 +140,7 @@
             <span class="kpi-value">{{ daily_average|floatformat:2 }}€ / día</span>
         </div>
         
-        {% if selected_month == today.month and selected_year == today.year %}
+        {% if selected_month == today.month and selected_year == today.year and not range_active %}
             <div class="kpi-card" style="border-left: 4px solid var(--color-warning-accent);">
                 <span class="kpi-label">Proyección fin de mes</span>
                 <span class="kpi-value">{{ projected_end_of_month|floatformat:2 }}€</span>
@@ -165,7 +151,7 @@
 
     {% if compare_enabled %}
         <section class="comparison">
-            <h3>Resumen comparativo</h3>
+            <h2>Resumen comparativo</h2>
             <p>
                 Gastos periodo actual: <strong>{{ kpi_total|floatformat:2 }} €</strong><br>
                 Gastos periodo anterior: <strong>{{ kpi_previous_total|floatformat:2 }} €</strong><br>
@@ -178,7 +164,7 @@
                 </small>
             </p>
 
-            <h3>Desglose de cambios por categoría</h3>
+            <h2>Desglose de cambios por categoría</h2>
             <div class="table-wrap">
             <table>
                 <thead>
@@ -212,21 +198,21 @@
     
     <div class="charts-container">
         <section>
-            <h3>Evolución de Gastos ({% if chart_type == 'day' %}Por día {% else %} Por Meses{% endif %})</h3>
+            <h2>Evolución de Gastos ({% if chart_type == 'day' %}Por día {% else %} Por Meses{% endif %})</h2>
             <div class="chart-box">
                 <canvas id="mainChart"></canvas>
             </div>
         </section>
 
         <section>
-            <h3>Distribución por Categorías</h3>
+            <h2>Distribución por Categorías</h2>
             <div class="chart-box">
                 <canvas id="categoryChart"></canvas>
             </div>
         </section>
 
         <section>
-            <h3>Gastos Recientes</h3>
+            <h2>Gastos Recientes</h2>
             <div class="table-wrap">
             <table class="table">
                 <thead>
@@ -243,7 +229,12 @@
                         <tr>
                             <td>{{ exp.date|date:"d/m/Y" }}</td>
                             <td>{{ exp.account.name }}</td>
-                            <td>{{ exp.category.name }}</td>
+                            <td>
+                                {{ exp.category.name }}
+                                {% if exp.is_transfer %}
+                                    <span class="badge badge-neutral">Traspaso</span>
+                                {% endif %}
+                            </td>
                             <td>{{ exp.description|default:"-" }}</td>
                             <td style="color: var(--color-danger-accent); font-weight: bold;">{{ exp.amount|floatformat:2 }}</td>
                         </tr>
@@ -290,11 +281,11 @@
         });
     </script>
 
-    <h3>Evolución anual por cuenta ({{ selected_year }})</h3>
+    <h2>Evolución anual por cuenta ({{ selected_year }})</h2>
     <div class="dashboard-grid">
         {% for acc in accounts_charts %}
             <div class="card card-chart">
-                <h4>{{ acc.name }}</h4>
+                <h3>{{ acc.name }}</h3>
                 <p><strong>Saldo actual:</strong> {{ acc.current_balance|floatformat:2 }}€</p>                
                 <div class="canvas-wrapper">
                     <canvas id="accountChart{{ acc.id }}"></canvas>
@@ -393,28 +384,11 @@
     </script>
 
 
-    {% if compare_enabled %}
-        <section class="comparison">
-            <h3>Comparativa</h3>
-            
-            <p>
-                Diferencia:
-                <strong class="{% if kpi_trend == 'up' %}positive{% endif %}">
-                    {% if kpi_trend == "up" %}+{% endif %}
-                    {{ kpi_difference_abs|floatformat:2 }} €
-                </strong>
-                {% if kpi_percentage %}
-                    ({{ kpi_percentage|floatformat:1 }}%)
-                {% endif %}
-            </p>
-        </section>
-    {% endif %}
-
     <!-- ========================= -->
     <!-- Goals -->
     <!-- ========================= -->
 
-    <h3>Objetivos</h3>
+    <h2>Objetivos</h2>
     {% if goals %}
         <div class="goals-widget">
             {% for goal in goals %}

expenses_manager/expenses/templates/expenses/expense_list.html

@@ -47,10 +47,20 @@
                 {% endfor %}
             </select>
 
+            {% include "expenses/_date_range.html" %}
+
             <button type="submit" class="btn btn-primary">Filtrar</button>
             <a href="{% url 'expense_list' %}" class="btn btn-secondary">Limpiar</a>
         </div>
 
+        {% if range_active %}
+            <p class="range-notice">
+                Mostrando el rango de fechas seleccionado; los filtros de año y mes no
+                se aplican.
+                <a href="{% url 'expense_list' %}">Quitar el rango</a>
+            </p>
+        {% endif %}
+
         <br>
 
         <details class="filters-advanced"
@@ -96,7 +106,7 @@
     <br>
 
     <section>
-        <strong>Total:</strong> {{ kpi_total|floatformat:2 }}€ |
+        <strong>Total (sin traspasos):</strong> {{ kpi_total|floatformat:2 }}€ |
         <strong>Gastos:</strong> {{ kpi_count }} |
         <strong>Categorías:</strong> {{ kpi_categories }}
     </section>
@@ -117,7 +127,12 @@
             {% for expense in page_obj %}
                 <tr>
                     <td>{{ expense.date }}</td>
-                    <td>{{ expense.category.name }}</td>
+                    <td>
+                        {{ expense.category.name }}
+                        {% if expense.is_transfer %}
+                            <span class="badge badge-neutral">Traspaso</span>
+                        {% endif %}
+                    </td>
                     <td>{{ expense.amount }}</td>
                     <td>{{ expense.account.name }}</td>
                     <td>
@@ -142,8 +157,13 @@
             {% empty %}
                 <tr>
                     <td colspan="6" class="empty-state">
-                        <p>No hay gastos</p>
+                        {% if filters_active %}
-                        <a href="{% url 'expense_create' %}">Añade el primero</a>
+                            <p>No hay gastos que coincidan con los filtros</p>
+                            <a href="{% url 'expense_list' %}">Quitar los filtros</a>
+                        {% else %}
+                            <p>No hay gastos</p>
+                            <a href="{% url 'expense_create' %}">Añade el primero</a>
+                        {% endif %}
                     </td>
                 </tr>
             {% endfor %}

expenses_manager/expenses/templates/expenses/home.html

@@ -96,7 +96,12 @@
             {% for mov in movements %}
                 <li class="movement">
                     <span class="movement-date">{{ mov.date }}</span>
-                    <span class="movement-label">{{ mov.label }}</span>
+                    <span class="movement-label">
+                        {{ mov.label }}
+                        {% if mov.is_transfer %}
+                            <span class="badge badge-neutral">Traspaso</span>
+                        {% endif %}
+                    </span>
                     <span class="movement-account muted">{{ mov.account }}</span>
                     <span class="movement-amount {% if mov.kind == 'income' %}amount-positive{% else %}amount-negative{% endif %}">
                         {% if mov.kind == 'income' %}+{% else %}−{% endif %}{{ mov.amount|floatformat:2 }}€

expenses_manager/expenses/templates/expenses/income_list.html

@@ -3,8 +3,72 @@
 {% block content %}
     <h1>Mis ingresos</h1>
 
+    <form method="get" class="filters">
+        <div class="filters-main">
+
+            <label class="sr-only" for="filterYear">Año</label>
+            <select name="year" id="filterYear">
+                <option value="">Año</option>
+                {% for y in year_list %}
+                    <option value="{{ y }}"
+                        {% if selected_year == y %}selected{% endif %}
+                    >
+                        {{ y }}
+                    </option>
+                {% endfor %}
+            </select>
+
+            <label class="sr-only" for="filterMonth">Mes</label>
+            <select name="month" id="filterMonth">
+                <option value="">Mes</option>
+                {% for m in months %}
+                    <option value="{{ m }}"
+                        {% if selected_month == m %}selected{% endif %}
+                    >
+                        {{ m }}
+                    </option>
+                {% endfor %}
+            </select>
+
+            <label class="sr-only" for="filterAccount">Cuenta</label>
+            <select name="account" id="filterAccount">
+                <option value="">Cuenta</option>
+                {% for acc in accounts %}
+                    <option value="{{ acc.id }}"
+                        {% if selected_account == acc.id %}selected{% endif %}
+                    >
+                        {{ acc.name }}
+                    </option>
+                {% endfor %}
+            </select>
+
+            {% include "expenses/_date_range.html" %}
+
+            <button type="submit" class="btn btn-primary">Filtrar</button>
+            <a href="{% url 'income_list' %}" class="btn btn-secondary">Limpiar</a>
+        </div>
+
+        {% if range_active %}
+            <p class="range-notice">
+                Mostrando el rango de fechas seleccionado; los filtros de año y mes no
+                se aplican.
+                <a href="{% url 'income_list' %}">Quitar el rango</a>
+            </p>
+        {% endif %}
+    </form>
+
+    <br>
+
     <a class="btn" href="{% url 'income_create' %}">➕ Nuevo ingreso</a>
 
+    <br>
+    <br>
+
+    <section>
+        <strong>Total (sin traspasos):</strong> {{ kpi_total|floatformat:2 }}€ |
+        <strong>Ingresos:</strong> {{ kpi_count }}
+    </section>
+
     <div class="table-wrap">
     <table>
         <thead>
@@ -17,10 +81,15 @@
             </tr>
         </thead>
         <tbody>
-            {% for income in incomes %}
+            {% for income in page_obj %}
                 <tr>
-                    <td>{{ income.name }}</td>
+                    <td>
-                    <td>{{ income.account }}</td>
+                        {{ income.name }}
+                        {% if income.is_transfer %}
+                            <span class="badge badge-neutral">Traspaso</span>
+                        {% endif %}
+                    </td>
+                    <td>{{ income.account.name }}</td>
                     <td>{{ income.amount|floatformat:2 }}</td>
                     <td>{{ income.date }}</td>
                     <td class="table-actions">
@@ -31,8 +100,13 @@
             {% empty %}
             <tr>
                 <td colspan="5" class="empty-state">
-                    <p>No hay ingresos</p>
+                    {% if filters_active %}
-                    <a href="{% url 'income_create' %}">Añade el primero</a>
+                        <p>No hay ingresos que coincidan con los filtros</p>
+                        <a href="{% url 'income_list' %}">Quitar los filtros</a>
+                    {% else %}
+                        <p>No hay ingresos</p>
+                        <a href="{% url 'income_create' %}">Añade el primero</a>
+                    {% endif %}
                 </td>
             </tr>
             {% endfor %}
@@ -40,4 +114,20 @@
     </table>
     </div>
 
+    <nav class="pagination" aria-label="Paginación de ingresos">
+        <span class="step-links">
+            {% if page_obj.has_previous %}
+                <a href="?page=1{% if query_params %}&{{ query_params }}{% endif %}">&laquo; Primero</a>
+                <a href="?page={{ page_obj.previous_page_number }}{% if query_params %}&{{ query_params }}{% endif %}">Anterior</a>
+            {% endif %}
+
+            <span>Página {{ page_obj.number }} de {{ page_obj.paginator.num_pages }}</span>
+
+            {% if page_obj.has_next %}
+                <a href="?page={{ page_obj.next_page_number }}{% if query_params %}&{{ query_params }}{% endif %}">Siguiente</a>
+                <a href="?page={{ page_obj.paginator.num_pages }}{% if query_params %}&{{ query_params }}{% endif %}">Último &raquo;</a>
+            {% endif %}
+        </span>
+    </nav>
+
 {% endblock %}

expenses_manager/expenses/templates/fuel/list.html

@@ -10,8 +10,6 @@
 
     <a class="btn" href="{% url 'fuel_create' %}">➕ Nuevo repostaje</a>
 
-    </div>
-
     <div class="table-wrap">
     <table>
         <thead>

expenses_manager/expenses/templates/registration/login.html

@@ -2,7 +2,7 @@
 
 {% block content %}
 
-<h2>Iniciar sesión</h2>
+<h1>Iniciar sesión</h1>
 
 <form method="post" class="app-form">
     {% csrf_token %}

expenses_manager/expenses/templates/registration/password_help.html

@@ -2,7 +2,7 @@
 
 {% block content %}
 
-<h2>Recuperar contraseña</h2>
+<h1>Recuperar contraseña</h1>
 
 <p>
     Esta aplicación actualmente no envía correos de recuperación automáticos.

expenses_manager/expenses/templates/settings/index.html

@@ -5,23 +5,23 @@
 {% endblock %}
 
 {% block content %}
-<h2>Configuración</h2>
+<h1>Configuración</h1>
 
 <p>Gestiona las categorías, etiquetas y objetivos de tu cuenta</p>
 
 <div class="settings-grid">
     <a class="settings-card" href="{% url 'category_list' %}">
-        <h3>Categorías</h3>
+        <h2>Categorías</h2>
         <p>Organiza tus gastos por tipo.</p>
     </a>
 
     <a class="settings-card" href="{% url 'tag_list' %}">
-        <h3>Etiquetas</h3>
+        <h2>Etiquetas</h2>
         <p>Añade etiquetas libres a tus gastos.</p>
     </a>
 
     <a class="settings-card" href="{% url 'goal_list' %}">
-        <h3>Objetivos</h3>
+        <h2>Objetivos</h2>
         <p>Define y controla tus metas de gasto.</p>
     </a>
 </div>

expenses_manager/expenses/tests/test_dashboard.py

@@ -2,7 +2,7 @@ import pytest
 from datetime import date
 from decimal import Decimal
 from django.urls import reverse
-from expenses.models import Expense, Category
+from expenses.models import Account, Expense, Category, Income
 
 pytestmark = pytest.mark.django_db
 
@@ -80,3 +80,146 @@ def test_dashboard_filters_by_year(auth_client, user, account, category):
     assert len(chart_data) == 12
     assert chart_data[4] == 20.0  # May = month 5 -> index 4
     assert sum(chart_data) == 20.0  # only the 2024 expense contributes
+
+
+def test_dashboard_preset_this_month(auth_client):
+    today = date.today()
+
+    response = auth_client.get(reverse('dashboard'), {'period': 'this_month'})
+
+    assert response.context['selected_year'] == today.year
+    assert response.context['selected_month'] == today.month
+
+
+def test_dashboard_preset_last_month(auth_client):
+    today = date.today()
+    expected_month = today.month - 1 or 12
+    expected_year = today.year if today.month > 1 else today.year - 1
+
+    response = auth_client.get(reverse('dashboard'), {'period': 'last_month'})
+
+    assert response.context['selected_year'] == expected_year
+    assert response.context['selected_month'] == expected_month
+
+
+def test_dashboard_preset_this_year_has_no_month(auth_client):
+    today = date.today()
+
+    response = auth_client.get(reverse('dashboard'), {'period': 'this_year'})
+
+    assert response.context['selected_year'] == today.year
+    assert response.context['selected_month'] is None
+
+
+def test_dashboard_filters_by_account(auth_client, user, account, category):
+    other = Account.objects.create(
+        owner=user, name="Otra", initial_balance=Decimal("100"), active=True
+    )
+    Expense.objects.create(
+        owner=user, account=account, category=category,
+        amount=Decimal("10"), date=date(2024, 3, 1),
+    )
+    Expense.objects.create(
+        owner=user, account=other, category=category,
+        amount=Decimal("25"), date=date(2024, 3, 1),
+    )
+
+    response = auth_client.get(
+        reverse('dashboard'),
+        {'year': 2024, 'account': other.id},
+    )
+
+    assert response.context['kpi_total'] == Decimal('25')
+    assert response.context['kpi_count'] == 1
+    assert response.context['kpi_balance'] == Decimal('75')  # 100 - 25
+
+
+def test_dashboard_without_compare_keeps_comparison_defaults(auth_client):
+    response = auth_client.get(reverse('dashboard'), {'year': 2024})
+
+    assert response.context['compare_enabled'] is False
+    assert response.context['kpi_previous_total'] == 0
+    assert response.context['kpi_difference'] == 0
+    assert response.context['kpi_percentage'] == 0
+    assert response.context['kpi_trend'] == 'equal'
+    assert response.context['category_comparison'] == []
+
+
+def test_dashboard_compare_fills_difference_and_trend(auth_client, user, account, category):
+    Expense.objects.create(
+        owner=user, account=account, category=category,
+        amount=Decimal("20"), date=date(2024, 2, 15),
+    )
+    Expense.objects.create(
+        owner=user, account=account, category=category,
+        amount=Decimal("30"), date=date(2024, 3, 10),
+    )
+
+    response = auth_client.get(
+        reverse('dashboard'),
+        {'year': 2024, 'month': 3, 'compare': '1'},
+    )
+
+    assert response.context['compare_enabled'] is True
+    assert response.context['kpi_previous_total'] == Decimal('20')
+    assert response.context['kpi_difference'] == Decimal('10')
+    assert response.context['kpi_trend'] == 'up'
+    assert float(response.context['kpi_percentage']) == 50.0
+
+    rows = {row['category']: row for row in response.context['category_comparison']}
+    assert rows[category.name]['current'] == 30.0
+    assert rows[category.name]['previous'] == 20.0
+    assert rows[category.name]['difference'] == 10.0
+
+
+def test_dashboard_chart_type_is_day_when_a_month_is_selected(auth_client):
+    response = auth_client.get(reverse('dashboard'), {'year': 2024, 'month': 3})
+
+    assert response.context['chart_type'] == 'day'
+
+
+def test_dashboard_chart_type_is_month_for_the_whole_year(auth_client):
+    response = auth_client.get(reverse('dashboard'), {'year': 2024})
+
+    assert response.context['chart_type'] == 'month'
+
+
+def test_dashboard_category_chart_keeps_only_top_ten(auth_client, user, account):
+    for i in range(12):
+        cat = Category.objects.create(name=f"Cat {i:02d}", owner=user)
+        Expense.objects.create(
+            owner=user, account=account, category=cat,
+            amount=Decimal(str(i + 1)), date=date(2024, 6, 1),
+        )
+
+    response = auth_client.get(reverse('dashboard'), {'year': 2024})
+
+    assert len(response.context['by_category_chart']) == 10
+    assert len(list(response.context['by_category'])) == 12
+
+
+def test_dashboard_kpi_balance_matches_sum_of_current_balances(auth_client, user, account, category):
+    savings = Account.objects.create(
+        owner=user, name="Ahorro", initial_balance=Decimal("500"), active=True
+    )
+    Account.objects.create(
+        owner=user, name="Cerrada", initial_balance=Decimal("999"), active=False
+    )
+
+    Expense.objects.create(
+        owner=user, account=account, category=category,
+        amount=Decimal("40"), date=date(2024, 4, 1),
+    )
+    Income.objects.create(
+        owner=user, account=savings, name="Nomina",
+        amount=Decimal("60"), date=date(2024, 4, 2),
+    )
+
+    response = auth_client.get(reverse('dashboard'), {'year': 2024})
+
+    expected = sum(
+        acc.current_balance()
+        for acc in Account.objects.filter(owner=user, active=True)
+    )
+    assert expected == Decimal('520')  # (0 - 40) + (500 + 60), sin la inactiva
+    assert response.context['kpi_balance'] == expected

expenses_manager/expenses/tests/test_date_range.py

@@ -0,0 +1,271 @@
+"""Rango de fechas libre (date_from / date_to) en expense_list y dashboard.
+
+La regla que estructura todo: si hay rango activo, manda el rango y los
+selectores de año y mes no se aplican. Un solo criterio de periodo a la vez.
+"""
+import pytest
+from datetime import date, timedelta
+from decimal import Decimal
+from django.urls import reverse
+from expenses.models import Expense
+
+pytestmark = pytest.mark.django_db
+
+
+def make_expense(user, account, category, amount, on):
+    return Expense.objects.create(
+        owner=user,
+        account=account,
+        category=category,
+        amount=Decimal(amount),
+        date=on,
+    )
+
+
+# --------------------------------------------------------------------------
+# expense_list
+# --------------------------------------------------------------------------
+
+def test_expense_list_filters_by_range(auth_client, user, account, category):
+    inside = make_expense(user, account, category, "10", date(2024, 3, 15))
+    before = make_expense(user, account, category, "20", date(2024, 2, 20))
+    after = make_expense(user, account, category, "30", date(2024, 4, 5))
+
+    response = auth_client.get(
+        reverse("expense_list"),
+        {"date_from": "2024-03-01", "date_to": "2024-03-31"},
+    )
+
+    rows = list(response.context["page_obj"])
+    assert rows == [inside]
+    assert before not in rows and after not in rows
+    assert response.context["range_active"] is True
+    assert response.context["kpi_total"] == Decimal("10")
+
+
+def test_expense_list_open_ended_range_reaches_the_end(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 2, 20))
+    march = make_expense(user, account, category, "20", date(2024, 3, 15))
+    december = make_expense(user, account, category, "30", date(2024, 12, 31))
+
+    response = auth_client.get(reverse("expense_list"), {"date_from": "2024-03-01"})
+
+    rows = list(response.context["page_obj"])
+    assert set(rows) == {march, december}
+
+
+def test_expense_list_open_ended_range_reaches_the_start(auth_client, user, account, category):
+    old = make_expense(user, account, category, "10", date(2020, 1, 1))
+    february = make_expense(user, account, category, "20", date(2024, 2, 20))
+    make_expense(user, account, category, "30", date(2024, 4, 5))
+
+    response = auth_client.get(reverse("expense_list"), {"date_to": "2024-03-01"})
+
+    rows = list(response.context["page_obj"])
+    assert set(rows) == {old, february}
+
+
+def test_expense_list_inverted_range_is_ignored_entirely(auth_client, user, account, category):
+    """Un rango invertido no debe devolver una lista vacía sin explicación."""
+    expenses = [
+        make_expense(user, account, category, "10", date(2024, 2, 20)),
+        make_expense(user, account, category, "20", date(2024, 3, 15)),
+    ]
+
+    response = auth_client.get(
+        reverse("expense_list"),
+        {"date_from": "2024-12-01", "date_to": "2024-01-01"},
+    )
+
+    assert response.context["range_active"] is False
+    assert set(response.context["page_obj"]) == set(expenses)
+
+
+def test_expense_list_malformed_date_is_ignored(auth_client, user, account, category):
+    expense = make_expense(user, account, category, "10", date(2024, 3, 15))
+
+    response = auth_client.get(reverse("expense_list"), {"date_from": "loquesea"})
+
+    assert response.status_code == 200
+    assert response.context["range_active"] is False
+    assert list(response.context["page_obj"]) == [expense]
+
+
+def test_expense_list_range_overrides_year_and_month(auth_client, user, account, category):
+    """El año viene en la URL pero no debe aplicarse: manda el rango."""
+    in_2023 = make_expense(user, account, category, "10", date(2023, 5, 10))
+    make_expense(user, account, category, "20", date(2024, 5, 10))
+
+    response = auth_client.get(
+        reverse("expense_list"),
+        {"year": 2024, "month": 5, "date_from": "2023-01-01", "date_to": "2023-12-31"},
+    )
+
+    assert list(response.context["page_obj"]) == [in_2023]
+
+
+# --------------------------------------------------------------------------
+# dashboard
+# --------------------------------------------------------------------------
+
+def test_dashboard_filters_by_range(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 3, 15))
+    make_expense(user, account, category, "20", date(2024, 4, 5))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": "2024-03-01", "date_to": "2024-03-31"},
+    )
+
+    assert response.context["range_active"] is True
+    assert response.context["kpi_total"] == Decimal("10")
+    assert response.context["kpi_count"] == 1
+
+
+def test_dashboard_range_overrides_year(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2023, 5, 10))
+    make_expense(user, account, category, "20", date(2024, 5, 10))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"year": 2024, "date_from": "2023-01-01", "date_to": "2023-12-31"},
+    )
+
+    assert response.context["kpi_total"] == Decimal("10")
+
+
+def test_dashboard_inverted_range_falls_back_to_the_normal_period(
+    auth_client, user, account, category
+):
+    make_expense(user, account, category, "20", date(2024, 5, 10))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"year": 2024, "date_from": "2024-12-01", "date_to": "2024-01-01"},
+    )
+
+    assert response.context["range_active"] is False
+    assert response.context["kpi_total"] == Decimal("20")
+
+
+def test_dashboard_short_range_charts_by_day(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 3, 5))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": "2024-03-01", "date_to": "2024-03-30"},  # 30 días
+    )
+
+    assert response.context["chart_type"] == "day"
+    labels = response.context["chart_labels"]
+    assert len(labels) == 30
+    assert labels[0] == "01/03"
+    assert labels[4] == "05/03"
+    # El eje es denso: el día con gasto lleva su importe, el resto va a cero.
+    assert response.context["chart_data"][4] == 10.0
+    assert response.context["chart_data"][0] == 0
+
+
+def test_dashboard_long_range_charts_by_month(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 2, 5))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": "2024-01-01", "date_to": "2024-04-29"},  # 120 días
+    )
+
+    assert response.context["chart_type"] == "month"
+    labels = response.context["chart_labels"]
+    assert labels == ["01/2024", "02/2024", "03/2024", "04/2024"]
+    assert response.context["chart_data"][1] == 10.0
+
+
+def test_dashboard_range_threshold_is_62_days(auth_client, user, account, category):
+    start = date(2024, 3, 1)
+
+    at_limit = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": start.isoformat(), "date_to": (start + timedelta(days=61)).isoformat()},
+    )
+    over_limit = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": start.isoformat(), "date_to": (start + timedelta(days=62)).isoformat()},
+    )
+
+    assert at_limit.context["chart_type"] == "day"      # 62 días justos
+    assert over_limit.context["chart_type"] == "month"  # 63 días
+
+
+def test_dashboard_range_disables_comparison(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 3, 15))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"compare": "1", "date_from": "2024-03-01", "date_to": "2024-03-31"},
+    )
+
+    assert response.context["compare_enabled"] is False
+    assert response.context["compare_suppressed"] is True
+    assert response.context["kpi_previous_total"] == 0
+    assert response.context["category_comparison"] == []
+
+
+def test_dashboard_range_skips_the_end_of_month_projection(
+    auth_client, user, account, category
+):
+    today = date.today()
+    make_expense(user, account, category, "10", today)
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": today.replace(day=1).isoformat()},
+    )
+
+    assert response.context["projected_end_of_month"] == 0
+
+
+def test_dashboard_range_daily_average_uses_the_range_length(
+    auth_client, user, account, category
+):
+    make_expense(user, account, category, "100", date(2024, 3, 5))
+
+    response = auth_client.get(
+        reverse("dashboard"),
+        {"date_from": "2024-03-01", "date_to": "2024-03-10"},  # 10 días
+    )
+
+    assert response.context["daily_average"] == Decimal("10")
+
+
+def test_dashboard_empty_open_range_does_not_break(auth_client, user):
+    """Sin date_from y sin gastos no hay longitud que medir: eje mensual vacío."""
+    response = auth_client.get(reverse("dashboard"), {"date_to": "2024-03-31"})
+
+    assert response.status_code == 200
+    assert response.context["chart_type"] == "month"
+    assert response.context["chart_labels"] == []
+
+
+# --------------------------------------------------------------------------
+# Sin rango no cambia nada
+# --------------------------------------------------------------------------
+
+def test_dashboard_without_range_keeps_the_old_day_axis(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 3, 5))
+
+    response = auth_client.get(reverse("dashboard"), {"year": 2024, "month": 3})
+
+    assert response.context["range_active"] is False
+    assert response.context["chart_type"] == "day"
+    # Números de día, no fechas.
+    assert response.context["chart_labels"] == list(range(1, 32))
+
+
+def test_dashboard_without_range_keeps_the_old_month_axis(auth_client, user, account, category):
+    make_expense(user, account, category, "10", date(2024, 3, 5))
+
+    response = auth_client.get(reverse("dashboard"), {"year": 2024})
+
+    assert response.context["chart_type"] == "month"
+    assert response.context["chart_labels"][0] == "Ene"
+    assert len(response.context["chart_labels"]) == 12

expenses_manager/expenses/tests/test_income.py

@@ -1,9 +1,25 @@
 import pytest
 from datetime import date
+from decimal import Decimal
+from django.test.utils import CaptureQueriesContext
+from django.db import connection
+from django.urls import reverse
 from expenses.models import Income, Account
 
 pytestmark = pytest.mark.django_db
 
+
+def make_income(user, account, amount, on, name="Ingreso", is_transfer=False):
+    return Income.objects.create(
+        owner=user,
+        account=account,
+        name=name,
+        amount=Decimal(amount),
+        date=on,
+        is_transfer=is_transfer,
+    )
+
+
 def test_income_increases_account_balance(user):
     general_account = Account.objects.create(name='General', owner=user, initial_balance=1000, active=True)
 
@@ -16,3 +32,140 @@ def test_income_increases_account_balance(user):
     )
 
     assert general_account.current_balance() == 1500
+
+
+# --------------------------------------------------------------------------
+# Listado: filtros, paginación y totales
+# --------------------------------------------------------------------------
+
+def test_income_list_filters_by_year(auth_client, user, account):
+    old = make_income(user, account, "10", date(2023, 5, 10))
+    new = make_income(user, account, "20", date(2024, 5, 10))
+
+    response = auth_client.get(reverse("income_list"), {"year": 2024})
+
+    assert list(response.context["page_obj"]) == [new]
+    assert old not in list(response.context["page_obj"])
+
+
+def test_income_list_filters_by_month(auth_client, user, account):
+    march = make_income(user, account, "10", date(2024, 3, 10))
+    make_income(user, account, "20", date(2024, 5, 10))
+
+    response = auth_client.get(reverse("income_list"), {"year": 2024, "month": 3})
+
+    assert list(response.context["page_obj"]) == [march]
+
+
+def test_income_list_filters_by_account(auth_client, user, account):
+    other = Account.objects.create(
+        owner=user, name="Otra", initial_balance=Decimal("0"), active=True
+    )
+    make_income(user, account, "10", date(2024, 3, 10))
+    from_other = make_income(user, other, "20", date(2024, 3, 11))
+
+    response = auth_client.get(reverse("income_list"), {"account": other.id})
+
+    assert list(response.context["page_obj"]) == [from_other]
+
+
+def test_income_list_filters_by_range(auth_client, user, account):
+    inside = make_income(user, account, "10", date(2024, 3, 15))
+    make_income(user, account, "20", date(2024, 4, 5))
+
+    response = auth_client.get(
+        reverse("income_list"),
+        {"date_from": "2024-03-01", "date_to": "2024-03-31"},
+    )
+
+    assert response.context["range_active"] is True
+    assert list(response.context["page_obj"]) == [inside]
+
+
+def test_income_list_range_overrides_year(auth_client, user, account):
+    in_2023 = make_income(user, account, "10", date(2023, 5, 10))
+    make_income(user, account, "20", date(2024, 5, 10))
+
+    response = auth_client.get(
+        reverse("income_list"),
+        {"year": 2024, "date_from": "2023-01-01", "date_to": "2023-12-31"},
+    )
+
+    assert list(response.context["page_obj"]) == [in_2023]
+
+
+def test_income_list_paginates_by_ten(auth_client, user, account):
+    for day in range(1, 15):
+        make_income(user, account, "10", date(2024, 3, day))
+
+    response = auth_client.get(reverse("income_list"))
+
+    assert len(response.context["page_obj"]) == 10
+    assert response.context["page_obj"].paginator.num_pages == 2
+
+    second = auth_client.get(reverse("income_list"), {"page": 2})
+    assert len(second.context["page_obj"]) == 4
+
+
+def test_income_list_pagination_links_keep_the_filters(auth_client, user, account):
+    for day in range(1, 15):
+        make_income(user, account, "10", date(2024, 3, day))
+    make_income(user, account, "99", date(2023, 1, 1))
+
+    response = auth_client.get(reverse("income_list"), {"year": 2024})
+
+    # query_params alimenta los enlaces de paginación: sin él, pasar de página
+    # perdería el filtro y aparecería el ingreso de 2023.
+    assert "year=2024" in response.context["query_params"]
+    assert "page" not in response.context["query_params"]
+    assert 'href="?page=2&year=2024"' in response.content.decode()
+
+
+def test_income_list_total_excludes_transfers_but_lists_them(auth_client, user, account):
+    make_income(user, account, "100", date(2024, 3, 10))
+    transfer = make_income(
+        user, account, "400", date(2024, 3, 11), is_transfer=True
+    )
+
+    response = auth_client.get(reverse("income_list"))
+
+    assert response.context["kpi_total"] == Decimal("100")
+    assert response.context["kpi_count"] == 1
+    assert transfer in list(response.context["page_obj"])
+
+
+def test_income_list_empty_state_when_filters_match_nothing(auth_client, user, account):
+    make_income(user, account, "10", date(2024, 3, 10))
+
+    response = auth_client.get(reverse("income_list"), {"year": 1999})
+
+    assert response.status_code == 200
+    assert list(response.context["page_obj"]) == []
+    assert response.context["filters_active"] is True
+    body = response.content.decode()
+    assert "No hay ingresos que coincidan con los filtros" in body
+    assert "Añade el primero" not in body
+
+
+def test_income_list_empty_state_without_filters(auth_client):
+    response = auth_client.get(reverse("income_list"))
+
+    assert response.context["filters_active"] is False
+    assert "Añade el primero" in response.content.decode()
+
+
+def test_income_list_query_count_does_not_grow_with_rows(auth_client, user, account):
+    """select_related("account"): una consulta por página, no una por fila."""
+    for day in range(1, 4):
+        make_income(user, account, "10", date(2024, 3, day))
+
+    with CaptureQueriesContext(connection) as few:
+        auth_client.get(reverse("income_list"))
+
+    for day in range(4, 11):
+        make_income(user, account, "10", date(2024, 3, day))
+
+    with CaptureQueriesContext(connection) as many:
+        auth_client.get(reverse("income_list"))
+
+    assert len(many) == len(few)

expenses_manager/expenses/tests/test_transfers.py

@@ -0,0 +1,242 @@
+"""Traspasos entre cuentas (is_transfer).
+
+Un traspaso no es gasto ni ingreso real, pero sí mueve dinero entre cuentas.
+De ahí los dos bloques de este fichero, que comprueban lo contrario el uno del
+otro: los análisis excluyen los traspasos, los saldos los incluyen.
+"""
+import pytest
+from datetime import date
+from decimal import Decimal
+from django.urls import reverse
+from expenses.models import Account, Category, Expense, Goal, Income
+
+pytestmark = pytest.mark.django_db
+
+
+@pytest.fixture
+def savings(user):
+    return Account.objects.create(
+        owner=user, name="Ahorro", initial_balance=Decimal("0"), active=True
+    )
+
+
+def make_expense(user, account, category, amount, on, is_transfer=False):
+    return Expense.objects.create(
+        owner=user,
+        account=account,
+        category=category,
+        amount=Decimal(amount),
+        date=on,
+        is_transfer=is_transfer,
+    )
+
+
+def make_income(user, account, amount, on, name="Ingreso", is_transfer=False):
+    return Income.objects.create(
+        owner=user,
+        account=account,
+        name=name,
+        amount=Decimal(amount),
+        date=on,
+        is_transfer=is_transfer,
+    )
+
+
+# --------------------------------------------------------------------------
+# Análisis: los traspasos NO cuentan
+# --------------------------------------------------------------------------
+
+def test_dashboard_kpi_total_ignores_transfer(auth_client, user, account, category):
+    make_expense(user, account, category, "100", date(2024, 5, 10))
+    make_expense(user, account, category, "400", date(2024, 5, 11), is_transfer=True)
+
+    response = auth_client.get(reverse("dashboard"), {"year": 2024})
+
+    assert response.context["kpi_total"] == Decimal("100")
+    assert response.context["kpi_count"] == 1
+
+
+def test_dashboard_by_category_ignores_transfer(auth_client, user, account, category):
+    other = Category.objects.create(owner=user, name="Traspasos")
+    make_expense(user, account, category, "100", date(2024, 5, 10))
+    make_expense(user, account, other, "400", date(2024, 5, 11), is_transfer=True)
+
+    response = auth_client.get(reverse("dashboard"), {"year": 2024})
+
+    rows = {row["category__name"]: row["total"] for row in response.context["by_category"]}
+    assert rows == {category.name: Decimal("100")}
+
+
+def test_dashboard_comparison_ignores_transfer(auth_client, user, account, category):
+    make_expense(user, account, category, "30", date(2024, 3, 10))
+    make_expense(user, account, category, "20", date(2024, 2, 15))
+    make_expense(user, account, category, "500", date(2024, 2, 16), is_transfer=True)
+
+    response = auth_client.get(
+        reverse("dashboard"), {"year": 2024, "month": 3, "compare": "1"}
+    )
+
+    assert response.context["kpi_previous_total"] == Decimal("20")
+    assert response.context["kpi_difference"] == Decimal("10")
+
+
+def test_home_kpi_total_ignores_transfer(auth_client, user, account, category):
+    today = date.today()
+    make_expense(user, account, category, "100", today)
+    make_expense(user, account, category, "400", today, is_transfer=True)
+
+    response = auth_client.get(reverse("home"))
+
+    assert response.context["kpi_total"] == Decimal("100")
+    assert response.context["kpi_count"] == 1
+
+
+def test_home_previous_month_comparison_ignores_transfer(
+    auth_client, user, account, category
+):
+    today = date.today()
+    # Día 1 para que reste un mes sin caer en un día inexistente.
+    first = date(today.year, today.month, 1)
+    prev = date(first.year - 1, 12, 1) if first.month == 1 else date(
+        first.year, first.month - 1, 1
+    )
+
+    make_expense(user, account, category, "10", prev)
+    make_expense(user, account, category, "900", prev, is_transfer=True)
+
+    response = auth_client.get(reverse("home"))
+
+    assert response.context["prev_total"] == Decimal("10")
+
+
+def test_expense_list_total_ignores_transfer_but_row_is_listed(
+    auth_client, user, account, category
+):
+    make_expense(user, account, category, "100", date(2024, 5, 10))
+    transfer = make_expense(
+        user, account, category, "400", date(2024, 5, 11), is_transfer=True
+    )
+
+    response = auth_client.get(reverse("expense_list"), {"year": 2024})
+
+    assert response.context["kpi_total"] == Decimal("100")
+    assert response.context["kpi_count"] == 1
+    # El traspaso sigue en la tabla aunque no sume en el total.
+    assert transfer in list(response.context["page_obj"])
+
+
+def test_budget_goal_progress_ignores_transfer(user, account, category):
+    today = date.today()
+    make_expense(user, account, category, "50", today)
+    make_expense(user, account, category, "300", today, is_transfer=True)
+
+    goal = Goal.objects.create(
+        owner=user,
+        name="Presupuesto mensual",
+        target_amount=Decimal("200"),
+        kind=Goal.KIND_BUDGET,
+        category=category,
+        period=Goal.PERIOD_MONTH,
+    )
+
+    assert goal.progress == Decimal("50")
+    assert not goal.is_exceeded()
+
+
+# --------------------------------------------------------------------------
+# Saldos: los traspasos SÍ cuentan
+# --------------------------------------------------------------------------
+
+def test_transfer_expense_still_lowers_source_balance(user, account, category):
+    account.initial_balance = Decimal("1000")
+    account.save()
+    make_expense(user, account, category, "400", date(2024, 5, 11), is_transfer=True)
+
+    assert account.current_balance() == Decimal("600")
+
+
+def test_transfer_income_still_raises_target_balance(user, savings):
+    make_income(user, savings, "400", date(2024, 5, 11), is_transfer=True)
+
+    assert savings.current_balance() == Decimal("400")
+
+
+def test_transfer_keeps_total_balance_unchanged(auth_client, user, account, category, savings):
+    account.initial_balance = Decimal("1000")
+    account.save()
+    make_expense(user, account, category, "400", date(2024, 5, 11), is_transfer=True)
+    make_income(user, savings, "400", date(2024, 5, 11), is_transfer=True)
+
+    response = auth_client.get(reverse("home"))
+
+    # El dinero cambia de sitio, el patrimonio no se mueve.
+    assert response.context["total_balance"] == Decimal("1000")
+
+
+def test_saving_goal_progress_counts_the_transfer(user, savings):
+    """El punto más delicado: un traspaso a la cuenta de ahorro ES el progreso."""
+    make_income(user, savings, "400", date(2024, 5, 11), is_transfer=True)
+
+    goal = Goal.objects.create(
+        owner=user,
+        name="Fondo de emergencia",
+        target_amount=Decimal("1000"),
+        kind=Goal.KIND_SAVING,
+        account=savings,
+    )
+
+    assert goal.progress == Decimal("400")
+
+
+def test_account_list_balance_counts_the_transfer(auth_client, user, account, category):
+    account.initial_balance = Decimal("1000")
+    account.save()
+    make_expense(user, account, category, "400", date(2024, 5, 11), is_transfer=True)
+
+    response = auth_client.get(reverse("account_list"))
+
+    rows = {row["account"].id: row["balance"] for row in response.context["account_rows"]}
+    assert rows[account.id] == Decimal("600")
+
+
+# --------------------------------------------------------------------------
+# Formularios
+# --------------------------------------------------------------------------
+
+def test_expense_form_can_mark_a_transfer(auth_client, user, account, category):
+    response = auth_client.post(
+        reverse("expense_create"),
+        {
+            "date": "2024-05-11",
+            "amount": "400",
+            "description": "",
+            "category": category.id,
+            "account": account.id,
+            "is_transfer": "on",
+        },
+    )
+
+    assert response.status_code == 302
+    assert Expense.objects.get(owner=user).is_transfer is True
+
+
+def test_income_form_can_mark_a_transfer(auth_client, user, account):
+    response = auth_client.post(
+        reverse("income_create"),
+        {
+            "account": account.id,
+            "name": "Traspaso desde nómina",
+            "amount": "400",
+            "date": "2024-05-11",
+            "is_transfer": "on",
+        },
+    )
+
+    assert response.status_code == 302
+    assert Income.objects.get(owner=user).is_transfer is True
+
+
+def test_expense_defaults_to_not_a_transfer(user, account, category):
+    expense = make_expense(user, account, category, "10", date(2024, 5, 11))
+
+    assert expense.is_transfer is False

expenses_manager/expenses/views.py

@@ -1,6 +1,6 @@
 import logging
 import calendar
-from datetime import date, datetime
+from datetime import date, datetime, timedelta
 from decimal import Decimal
 from django.contrib import messages
 from .models import Account, Category, Expense, FuelEntry, Tag, Income, Goal
@@ -15,8 +15,14 @@ from .forms import (
 )
 
 from django.core.paginator import Paginator
-from django.db.models import Sum, Count, ProtectedError
+from django.db.models import Sum, Count, Min, ProtectedError
-from django.db.models.functions import ExtractMonth, ExtractYear, ExtractDay, Lower
+from django.db.models.functions import (
+    ExtractMonth,
+    ExtractYear,
+    ExtractDay,
+    Lower,
+    TruncMonth,
+)
 
 from django.contrib.auth.decorators import login_required
 from django.utils.http import url_has_allowed_host_and_scheme
@@ -31,6 +37,37 @@ def _get_int(value):
         return None
 
 
+# Umbral del eje del gráfico con rango libre: dos meses es donde un gráfico
+# diario deja de leerse, así que por encima se agrupa por mes.
+RANGE_DAY_CHART_MAX_DAYS = 62
+
+
+def _get_date(value):
+    """Parsea una fecha AAAA-MM-DD de la URL. None si falta o no es válida."""
+    try:
+        return datetime.strptime(value, "%Y-%m-%d").date()
+    except (TypeError, ValueError):
+        return None
+
+
+def _resolve_date_range(request):
+    """Lee el rango de fechas libre de la URL.
+
+    Devuelve (date_from, date_to); cualquiera de los dos puede ser None, porque
+    "desde el 1 de marzo" sin fecha final es un filtro válido.
+
+    Si el rango está invertido (desde > hasta) se ignoran LAS DOS fechas: devolver
+    una lista vacía sin explicación es peor que ignorar un filtro mal puesto.
+    """
+    date_from = _get_date(request.GET.get("date_from"))
+    date_to = _get_date(request.GET.get("date_to"))
+
+    if date_from and date_to and date_from > date_to:
+        return None, None
+
+    return date_from, date_to
+
+
 def _safe_next(request):
     next_url = request.POST.get("next") or request.GET.get("next")
 
@@ -77,9 +114,26 @@ def _category_tree(categories):
     return rows
 
 
+def _analysis_expenses(user):
+    """Gastos para análisis: excluye los traspasos entre cuentas propias.
+
+    Un traspaso mueve dinero entre cuentas del usuario, así que suma al saldo de
+    cada cuenta pero NO es gasto real. Usa este helper en KPIs, gráficos y
+    comparativas.
+
+    NO lo uses en cálculos de saldo (_account_balances, current_balance,
+    monthly_balance, balance_until, monthly_net): ahí los traspasos SÍ cuentan,
+    y filtrarlos descuadraría todos los saldos.
+    """
+    return Expense.objects.filter(owner=user).exclude(is_transfer=True)
+
+
 def _account_balances(accounts):
     """Calcula el saldo de cada cuenta con dos queries agregadas (nada de
-    account.current_balance() en bucle, que dispararía N+1)."""
+    account.current_balance() en bucle, que dispararía N+1).
+
+    Los traspasos cuentan aquí a propósito: son movimientos reales de las
+    cuentas. No metas _analysis_expenses en esta función."""
     account_ids = [a.id for a in accounts]
 
     expense_totals = {
@@ -112,10 +166,73 @@ def _account_balances(accounts):
     return account_balances, negative_accounts, total_balance
 
 
+def _resolve_period(request, today):
+    """Traduce los parámetros de la URL en el periodo mirado por el dashboard.
+
+    Devuelve (period, selected_year, selected_month), donde selected_month es
+    None cuando se está mirando el año completo."""
+    period = request.GET.get("period", "")
+
+    if period == "this_month":
+        return period, today.year, today.month
+
+    if period == "last_month":
+        selected_year, selected_month = sub_months(today.year, today.month, 1)
+        return period, selected_year, selected_month
+
+    if period == "this_year":
+        return period, today.year, None
+
+    selected_year = _get_int(request.GET.get("year")) or today.year
+    selected_month = _get_int(request.GET.get("month")) or None
+    return period, selected_year, selected_month
+
+
+def _build_account_charts(accounts, balance_by_account, selected_year, today):
+    """Serie mensual de saldo de cada cuenta para las gráficas del dashboard.
+
+    En el año en curso la serie se corta en el mes actual y ese último punto
+    se sustituye por el saldo real de la cuenta, que llega ya calculado en
+    balance_by_account para no repetir current_balance() por cuenta."""
+    accounts_charts = []
+
+    for acc in accounts:
+        try:
+            monthly_data = acc.monthly_balance(selected_year)
+            m_balance = [float(row["balance"]) for row in monthly_data]
+        except Exception:
+            logger.exception(
+                "Error calculando monthly_balance para la cuenta %s (año %s)",
+                acc.id, selected_year
+            )
+            m_balance = [0] * 12
+
+        current_balance = balance_by_account[acc.id]
+
+        if selected_year == today.year:
+            current_month_index = today.month - 1
+
+            if current_month_index < len(m_balance):
+                m_balance[current_month_index] = float(current_balance)
+
+            m_balance = m_balance[:today.month]
+
+        accounts_charts.append({
+            "id": acc.id,
+            "name": acc.name,
+            "data": m_balance,
+            "current_balance": current_balance,
+        })
+
+    return accounts_charts
+
+
 @login_required
 def home(request):
     today = date.today()
-    expenses = Expense.objects.filter(owner=request.user)
+    # Base de los KPIs, la comparativa y el mini-gráfico: sin traspasos.
+    # Los últimos movimientos usan su propia query, que sí los incluye.
+    expenses = _analysis_expenses(request.user)
 
     # ---- KPIs del mes en curso ----
     month_expenses = expenses.filter(date__year=today.year, date__month=today.month)
@@ -153,9 +270,14 @@ def home(request):
     has_alerts = bool(exceeded_goals or negative_accounts)
 
     # ---- Últimos movimientos (gastos + ingresos mezclados) ----
-    recent_expenses = expenses.select_related("category", "account").order_by(
+    # Es un listado, no un análisis: los traspasos son movimientos reales de las
-        "-date", "-id"
+    # cuentas y salen marcados con un distintivo, así que no se cuelga de
-    )[:8]
+    # "expenses" (que ya los ha filtrado) sino de la query sin filtrar.
+    recent_expenses = (
+        Expense.objects.filter(owner=request.user)
+        .select_related("category", "account")
+        .order_by("-date", "-id")[:8]
+    )
     recent_incomes = (
         Income.objects.filter(owner=request.user)
         .select_related("account")
@@ -170,6 +292,7 @@ def home(request):
                 "label": e.category.name,
                 "account": e.account.name,
                 "amount": e.amount,
+                "is_transfer": e.is_transfer,
             }
             for e in recent_expenses
         ]
@@ -180,6 +303,7 @@ def home(request):
                 "label": i.name,
                 "account": i.account.name,
                 "amount": i.amount,
+                "is_transfer": i.is_transfer,
             }
             for i in recent_incomes
         ],
@@ -249,11 +373,21 @@ def expense_list(request):
         if (t_id:= _get_int(t)) is not None
     ]
 
-    if year:
+    date_from, date_to = _resolve_date_range(request)
-        expenses = expenses.filter(date__year=year)
+    range_active = bool(date_from or date_to)
 
-    if month:
+    # Un solo criterio de periodo a la vez: si hay rango, manda el rango y los
-        expenses = expenses.filter(date__month=month)
+    # selectores de año y mes no se aplican (la plantilla lo avisa).
+    if range_active:
+        if date_from:
+            expenses = expenses.filter(date__gte=date_from)
+        if date_to:
+            expenses = expenses.filter(date__lte=date_to)
+    else:
+        if year:
+            expenses = expenses.filter(date__year=year)
+        if month:
+            expenses = expenses.filter(date__month=month)
 
     if category:
         expenses = expenses.filter(category_id=category)
@@ -268,11 +402,16 @@ def expense_list(request):
 
     expenses = expenses.order_by("-date")
 
-    total_amount = expenses.aggregate(total=Sum("amount"))["total"] or 0
+    # La tabla sigue listando los traspasos (hay que poder verlos y corregirlos),
+    # pero el total y los contadores miden gasto real, así que los excluyen. Por
+    # eso la etiqueta del total dice "sin traspasos" en la plantilla.
+    analysis_expenses = expenses.exclude(is_transfer=True)
 
-    expense_count = expenses.count()
+    total_amount = analysis_expenses.aggregate(total=Sum("amount"))["total"] or 0
 
-    category_count = expenses.values("category").distinct().count()
+    expense_count = analysis_expenses.count()
+
+    category_count = analysis_expenses.values("category").distinct().count()
 
     # Pagination
     paginator = Paginator(expenses, 10)
@@ -306,6 +445,10 @@ def expense_list(request):
 
     advanced_filters_open = bool(category or selected_tags)
 
+    filters_active = bool(
+        year or month or category or selected_tags or account_id or range_active
+    )
+
     return render(
         request,
         "expenses/expense_list.html",
@@ -315,6 +458,9 @@ def expense_list(request):
             "page_obj": page_obj,
             "selected_year": year,
             "selected_month": month,
+            "date_from": date_from,
+            "date_to": date_to,
+            "range_active": range_active,
             "selected_category": category,
             "categories": categories,
             "year_list": [y.year for y in year_list],
@@ -328,6 +474,7 @@ def expense_list(request):
             "accounts": Account.objects.filter(owner=request.user),
             "selected_account": account_id,
             "advanced_filters_open": advanced_filters_open,
+            "filters_active": filters_active,
             "query_params": query_params.urlencode(),
         },
     )
@@ -407,42 +554,53 @@ def expense_delete(request, pk):
 def dashboard(request):
     today = date.today()
     
-    period = request.GET.get("period", "")    
     account_id = _get_int(request.GET.get("account"))
-    compare_enabled = request.GET.get("compare") == "1"
+    compare_requested = request.GET.get("compare") == "1"
 
     # Time presets
-    if period == "this_month":
+    period, selected_year, selected_month = _resolve_period(request, today)
-        selected_year, selected_month = today.year, today.month
+
-    elif period == "last_month":
+    # Rango de fechas libre. Si está activo manda sobre año y mes, y además
-        selected_year, selected_month = sub_months(today.year, today.month, 1)
+    # desactiva la comparativa: no hay un "periodo anterior" obvio de un rango
-    elif period == "this_year":
+    # arbitrario. compare_suppressed sirve para decírselo al usuario.
-        selected_year, selected_month = today.year, None
+    date_from, date_to = _resolve_date_range(request)
-    else:
+    range_active = bool(date_from or date_to)
-        selected_year = _get_int(request.GET.get("year")) or _get_int(today.year)
+    compare_enabled = compare_requested and not range_active
-        selected_month = _get_int(request.GET.get("month"))
+    compare_suppressed = compare_requested and range_active
-        selected_month = _get_int(selected_month) if selected_month else None
 
     # Accounts
-    accounts = Account.objects.filter(owner=request.user, active=True)
+    accounts = list(Account.objects.filter(owner=request.user, active=True))
     selected_account_obj = None
     if account_id:
-        selected_account_obj = accounts.filter(id=account_id).first()
+        selected_account_obj = next((a for a in accounts if a.id == account_id), None)
 
     # Calculate the KPI
+    account_balances, _, total_balance = _account_balances(accounts)
+    balance_by_account = {row["account"].id: row["balance"] for row in account_balances}
+
     if selected_account_obj:
-        kpi_balance = selected_account_obj.current_balance()
+        kpi_balance = balance_by_account[selected_account_obj.id]
     else:
-        kpi_balance = sum(account.current_balance() for account in accounts)
+        kpi_balance = total_balance
 
     # Filter by base expenses
-    expenses = Expense.objects.filter(owner=request.user)
+    # Todo lo que cuelga de aquí es análisis (KPIs, gráficos, comparativa), así
+    # que va sin traspasos. Los saldos de arriba sí los incluyen.
+    expenses = _analysis_expenses(request.user)
     if account_id:
         expenses = expenses.filter(account_id=account_id)
     
-    expenses_filtered = expenses.filter(date__year=selected_year)
+    if range_active:
-    if selected_month:
+        expenses_filtered = expenses
-        expenses_filtered = expenses_filtered.filter(date__month=selected_month)
+        if date_from:
+            expenses_filtered = expenses_filtered.filter(date__gte=date_from)
+        if date_to:
+            expenses_filtered = expenses_filtered.filter(date__lte=date_to)
+    else:
+        expenses_filtered = expenses.filter(date__year=selected_year)
+        if selected_month:
+            expenses_filtered = expenses_filtered.filter(date__month=selected_month)
+
 
     # Basic KPIs
     total_amount = expenses_filtered.aggregate(total=Sum("amount"))["total"] or 0
@@ -474,7 +632,60 @@ def dashboard(request):
     #Graphic
     daily_average = 0
     projected_end_of_month = 0
-    if selected_month:
+    if range_active:
+        # Con rango libre el eje no lo decide el mes sino la longitud del rango.
+        # Si falta un extremo se acota para poder medirlo: por abajo con el gasto
+        # más antiguo del conjunto, por arriba con hoy.
+        span_from = date_from or expenses_filtered.aggregate(first=Min("date"))["first"]
+        span_to = date_to or today
+
+        if span_from is None:
+            # Sin gastos y sin fecha inicial no hay longitud que medir.
+            chart_labels = []
+            chart_totals = []
+            chart_type = "month"
+        else:
+            span_days = (span_to - span_from).days + 1
+            daily_average = total_amount / span_days if span_days > 0 else 0
+            # projected_end_of_month se queda en 0: proyectar a fin de mes desde
+            # un rango arbitrario no significa nada.
+
+            if span_days <= RANGE_DAY_CHART_MAX_DAYS:
+                # Agrupar por el propio campo, no con TruncDate: "date" ya es un
+                # DateField y TruncDate le aplicaría una conversión de zona
+                # horaria que en SQLite falla si no está la base de datos tz.
+                by_day_qs = expenses_filtered.values("date").annotate(
+                    total=Sum("amount")
+                )
+                day_totals = {row["date"]: float(row["total"]) for row in by_day_qs}
+
+                axis = [span_from + timedelta(days=i) for i in range(span_days)]
+                chart_labels = [d.strftime("%d/%m") for d in axis]
+                chart_totals = [day_totals.get(d, 0) for d in axis]
+                chart_type = "day"
+            else:
+                by_month_qs = (
+                    expenses_filtered.annotate(bucket=TruncMonth("date"))
+                    .values("bucket")
+                    .annotate(total=Sum("amount"))
+                )
+                month_totals = {
+                    (row["bucket"].year, row["bucket"].month): float(row["total"])
+                    for row in by_month_qs
+                }
+
+                axis = []
+                cursor = (span_from.year, span_from.month)
+                last = (span_to.year, span_to.month)
+                while cursor <= last:
+                    axis.append(cursor)
+                    y, m = cursor
+                    cursor = (y + 1, 1) if m == 12 else (y, m + 1)
+
+                chart_labels = [f"{m:02d}/{y}" for y, m in axis]
+                chart_totals = [month_totals.get(key, 0) for key in axis]
+                chart_type = "month"
+    elif selected_month:
         by_day_qs = (
             expenses_filtered.annotate(day=ExtractDay("date"))
             .values("day")
@@ -522,7 +733,7 @@ def dashboard(request):
     category_comparison = []
     
     if compare_enabled:
-        previous_expenses = Expense.objects.filter(owner=request.user)
+        previous_expenses = _analysis_expenses(request.user)
         if account_id:
             previous_expenses = previous_expenses.filter(account_id=account_id)
         
@@ -561,32 +772,9 @@ def dashboard(request):
             })
     
     # Anual evolution by accounts
-    accounts_charts = []
+    accounts_charts = _build_account_charts(
-    for acc in accounts:
+        accounts, balance_by_account, selected_year, today
-        try:
+    )
-            monthly_data = acc.monthly_balance(selected_year)
-            m_balance = [float(row["balance"]) for row in monthly_data]
-        except Exception:
-            logger.exception(
-                "Error calculando monthly_balance para la cuenta %s (año %s)",
-                acc.id, selected_year
-            )
-            m_balance = [0] * 12
-        
-        if selected_year == today.year:
-            current_month_index = today.month - 1
-            
-            if current_month_index < len(m_balance):
-                m_balance[current_month_index] = float(acc.current_balance())
-
-            m_balance = m_balance[:today.month]
-            
-        accounts_charts.append({
-            "id": acc.id,
-            "name": acc.name,
-            "data": m_balance,
-            "current_balance": acc.current_balance(),
-        })
 
     # Goals
     goals = Goal.objects.filter(owner=request.user)
@@ -605,10 +793,15 @@ def dashboard(request):
             "by_category_chart": by_category_chart,
             "chart_labels": chart_labels,
             "chart_data": chart_totals,
+            "chart_type": chart_type,
             "year_list": year_list,
             "months": list(range(1, 13)),
             "selected_year": selected_year,
             "selected_month": selected_month,
+            "date_from": date_from,
+            "date_to": date_to,
+            "range_active": range_active,
+            "compare_suppressed": compare_suppressed,
             "kpi_total": total_amount,
             "kpi_count": expense_count,
             "kpi_categories": category_count,
@@ -791,12 +984,79 @@ def income_create(request):
 
 @login_required
 def income_list(request):
-    incomes = Income.objects.filter(owner=request.user)
+    incomes = Income.objects.filter(owner=request.user).select_related("account")
+
+    year_list = Income.objects.filter(owner=request.user).dates("date", "year")
+
+    months = list(range(1, 13))
+
+    # Filters
+    year = _get_int(request.GET.get("year"))
+    month = _get_int(request.GET.get("month"))
+    account_id = _get_int(request.GET.get("account"))
+
+    date_from, date_to = _resolve_date_range(request)
+    range_active = bool(date_from or date_to)
+
+    # Misma precedencia que en expense_list: si hay rango, manda el rango y los
+    # selectores de año y mes no se aplican (la plantilla lo avisa).
+    if range_active:
+        if date_from:
+            incomes = incomes.filter(date__gte=date_from)
+        if date_to:
+            incomes = incomes.filter(date__lte=date_to)
+    else:
+        if year:
+            incomes = incomes.filter(date__year=year)
+        if month:
+            incomes = incomes.filter(date__month=month)
+
+    if account_id:
+        incomes = incomes.filter(account_id=account_id)
+
+    incomes = incomes.order_by("-date")
+
+    # La tabla sigue listando los traspasos, pero el total mide ingreso real y
+    # los excluye. Por eso la etiqueta dice "sin traspasos" en la plantilla.
+    totals = incomes.exclude(is_transfer=True).aggregate(
+        total=Sum("amount"), count=Count("id")
+    )
+    total_amount = totals["total"] or 0
+    income_count = totals["count"]
+
+    # Pagination
+    paginator = Paginator(incomes, 10)
+    page_number = request.GET.get("page")
+    page_obj = paginator.get_page(page_number)
+
+    query_params = request.GET.copy()
+    query_params.pop("page", None)
+
+    filters_active = bool(
+        year or month or account_id or range_active
+    )
 
     return render(
         request,
         "expenses/income_list.html",
-        {"active_menu": "incomes", "incomes": incomes},
+        {
+            "active_menu": "incomes",
+            "incomes": page_obj,
+            "page_obj": page_obj,
+            "year_list": [y.year for y in year_list],
+            "months": months,
+            "accounts": Account.objects.filter(owner=request.user),
+            "selected_year": year,
+            "selected_month": month,
+            "selected_account": account_id,
+            "date_from": date_from,
+            "date_to": date_to,
+            "range_active": range_active,
+            "kpi_total": total_amount,
+            "kpi_count": income_count,
+            "filters_active": filters_active,
+            "query_params": query_params.urlencode(),
+        },
     )