Melhorias no sistema de import/export

sigi/apps/utils/mixins.py

@@ -12,7 +12,7 @@ from django.template.response import TemplateResponse
 from django.urls import path
 from django.utils.translation import gettext as _, ngettext
 from import_export import resources
-from import_export.admin import ExportMixin
+from import_export.admin import ImportMixin, ExportMixin
 from import_export.fields import Field
 from import_export.forms import ExportForm
 from import_export.signals import post_export
@@ -243,6 +243,15 @@ class CartExportMixin(ExportMixin):
         return TemplateResponse(request, [self.export_template_name], context)
 
 
+class ImportCartExportMixin(ImportMixin, CartExportMixin):
+    """
+    Import and export mixin.
+    """
+
+    #: template for change_list view
+    change_list_template = "admin/cart/change_list_import_cart_export.html"
+
+
 class CartExportReportMixin(CartExportMixin):
     export_template_name = "admin/import_export/export_report.html"
     reports = []

sigi/apps/utils/templates/admin/cart/change_list_import_cart_export.html

@@ -0,0 +1,6 @@
+{% extends "admin/cart/change_list_cart_export.html" %}
+
+{% block object-tools-items %}
+  {% include "admin/import_export/change_list_import_item.html" %}
+  {{ block.super }}
+{% endblock %}

sigi/apps/utils/templates/admin/import_export/change_list.html

@@ -0,0 +1 @@
+{% extends "admin/change_list.html" %}

sigi/apps/utils/templates/admin/import_export/change_list_export_item.html

@@ -4,7 +4,7 @@
 {% if has_export_permission %}
 <li>
   <a class="btn-floating tooltipped waves-effect waves-light" href="{% url opts|admin_urlname:'export' %}{{cl.get_query_string}}" data-position="left" data-tooltip="{% trans "Export" %}">
-    <i class="material-icons">open_in_new</i>
+    <i class="material-icons">file_download</i>
   </a>
 </li>
 {% endif %}

sigi/apps/utils/templates/admin/import_export/change_list_import_item.html

@@ -0,0 +1,10 @@
+{% load i18n %}
+{% load admin_urls %}
+
+{% if has_import_permission %}
+<li>
+  <a class="btn-floating tooltipped waves-effect waves-light" href="{% url opts|admin_urlname:'import' %}{{cl.get_query_string}}" data-position="left" data-tooltip="{% trans "Import" %}">
+    <i class="material-icons">file_upload</i>
+  </a>
+</li>
+{% endif %}

sigi/apps/utils/templates/admin/import_export/export.html

@@ -14,7 +14,7 @@
 {% endblock %}
 
 {% block breadcrumbs %}{% endblock %}
-{% block content_title %}<h6>{% blocktrans with name=opts.verbose_name_plural %}Exportar {{ name }}{% endblocktrans %}</h6>{% endblock %}
+{% block content_title %}<h4>{% blocktrans with name=opts.verbose_name_plural %}Exportar {{ name }}{% endblocktrans %}</h4>{% endblock %}
 {% block content %}
 <form action="" method="POST" novalidate>{% csrf_token %}
   <div class="container">

sigi/apps/utils/templates/admin/import_export/import.html

@@ -0,0 +1,165 @@
+{% extends "admin/base_site.html" %}
+{% load i18n %}
+{% load admin_urls %}
+{% load import_export_tags %}
+{% load static %}
+
+{% block extrastyle %}
+  {{ block.super }}
+  <link rel="stylesheet" type="text/css" href="{% static "import_export/import.css" %}" />
+  <style>
+    #content {
+      display: block;
+    }
+    .submit-row>a {
+      color: #fff;
+    }
+  </style>
+{% endblock %}
+{% block breadcrumbs %}{% endblock %}
+{% block content_title %}<h4>{% blocktrans with name=opts.verbose_name_plural %}Importar {{ name }}{% endblocktrans %}</h4>{% endblock %}
+{% block content %}
+  {% if confirm_form %}
+    <form action="{% url opts|admin_urlname:"process_import" %}" method="POST">{% csrf_token %}
+      {{ confirm_form.as_p }}
+      <p>
+        {% trans "Below is a preview of data to be imported. If you are satisfied with the results, click 'Confirm import'" %}
+      </p>
+      <div class="submit-row">
+        <input type="submit" class="default" name="confirm" value="{% trans "Confirm import" %}">
+      </div>
+    </form>
+  {% else %}
+    <form action="" method="post" enctype="multipart/form-data">{% csrf_token %}
+      <p>
+        {% trans "This importer will import the following fields: " %}
+        <code>{{ fields|join:", " }}</code>
+      </p>
+
+      <fieldset class="module aligned">
+        {% for field in form %}
+          <div class="form-row">
+            {{ field.errors }}
+            {{ field.label_tag }}
+            {{ field }}
+            {% if field.field.help_text %}
+            <p class="help">{{ field.field.help_text|safe }}</p>
+            {% endif %}
+          </div>
+        {% endfor %}
+      </fieldset>
+      <div class="submit-row">
+        <button type="submit" class="btn waves-effect waves-light" value="{% trans "Submit" %}">
+          <i class="material-icons left">done</i>
+          {% trans "Import" %}
+        </button>
+        <a class="btn waves-effect waves-light" href="{% url opts|admin_urlname:'changelist' %}">
+          <i class="material-icons left">navigate_before</i>
+          {% trans "Voltar" %}
+        </a>
+      </div>
+    </form>
+  {% endif %}
+
+  {% if result %}
+    {% if result.has_errors %}
+      <h5>{% trans "Errors" %}</h5>
+      {% for error in result.base_errors  %}
+      <blockquote>
+        {{ error.error }}
+        <div class="traceback">{{ error.traceback|linebreaks }}</div>
+      </blockquote>
+      {% endfor %}
+      {% for line, errors in result.row_errors %}
+        {% for error in errors %}
+        <blockquote>
+          {% trans "Line number" %}: {{ line }} - {{ error.error }}
+          <div><code>{{ error.row.values|join:", " }}</code></div>
+          <div class="traceback">{{ error.traceback|linebreaks }}</div>
+        </blockquote>
+        {% endfor %}
+      {% endfor %}
+    {% elif result.has_validation_errors %}
+      <h5>{% trans "Some rows failed to validate" %}</h5>
+      <p>{% trans "Please correct these errors in your data where possible, then reupload it using the form above." %}</p>
+      <table class="striped import-preview">
+        <thead>
+          <tr>
+            <th>{% trans "Row" %}</th>
+            <th>{% trans "Errors" %}</th>
+            {% for field in result.diff_headers %}
+              <th>{{ field }}</th>
+            {% endfor %}
+          </tr>
+        </thead>
+        <tbody>
+        {% for row in result.invalid_rows %}
+          <tr>
+            <td>{{ row.number }} </td>
+            <td class="errors">
+              <span class="validation-error-count">{{ row.error_count }}</span>
+              <div class="validation-error-container">
+                <ul class="validation-error-list">
+                  {% for field_name, error_list in row.field_specific_errors.items %}
+                    <li>
+                        <span class="validation-error-field-label">{{ field_name }}</span>
+                        <ul>
+                          {% for error in error_list %}
+                            <li>{{ error }}</li>
+                          {% endfor %}
+                        </ul>
+                    </li>
+                  {% endfor %}
+                  {% if row.non_field_specific_errors %}
+                    <li>
+                      <span class="validation-error-field-label">{% trans "Non field specific" %}</span>
+                      <ul>
+                        {% for error in row.non_field_specific_errors %}
+                          <li>{{ error }}</li>
+                        {% endfor %}
+                      </ul>
+                    </li>
+                  {% endif %}
+                </ul>
+              </div>
+            </td>
+            {% for field in row.values %}
+              <td>{{ field }}</td>
+            {% endfor %}
+          </tr>
+        {% endfor %}
+        </tbody>
+      </table>
+    {% else %}
+      <h5>{% trans "Preview" %}</h5>
+      <table class="striped import-preview">
+        <thead>
+          <tr>
+            <th></th>
+            {% for field in result.diff_headers %}
+              <th>{{ field }}</th>
+            {% endfor %}
+          </tr>
+        </thead>
+        {% for row in result.valid_rows %}
+          <tr class="{{ row.import_type }}">
+            <td class="import-type">
+              {% if row.import_type == 'new' %}
+                {% trans "New" %}
+              {% elif row.import_type == 'skip' %}
+                {% trans "Skipped" %}
+              {% elif row.import_type == 'delete' %}
+                {% trans "Delete" %}
+              {% elif row.import_type == 'update' %}
+                {% trans "Update" %}
+              {% endif %}
+            </td>
+            {% for field in row.diff %}
+              <td>{{ field }}</td>
+            {% endfor %}
+          </tr>
+        {% endfor %}
+      </table>
+    {% endif %}
+  {% endif %}
+{% endblock %}