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gestao_raul/Lib/site-packages/django_extensions/admin/widgets.py

@@ -0,0 +1,90 @@
+# -*- coding: utf-8 -*-
+import urllib
+
+from django import forms
+from django.contrib.admin.sites import site
+from django.contrib.admin.widgets import ForeignKeyRawIdWidget
+from django.template.loader import render_to_string
+from django.templatetags.static import static
+from django.urls import reverse
+from django.utils.safestring import mark_safe
+from django.utils.text import Truncator
+
+
+class ForeignKeySearchInput(ForeignKeyRawIdWidget):
+    """
+    Widget for displaying ForeignKeys in an autocomplete search input
+    instead in a <select> box.
+    """
+
+    # Set in subclass to render the widget with a different template
+    widget_template = None
+    # Set this to the patch of the search view
+    search_path = None
+
+    def _media(self):
+        js_files = [
+            static('django_extensions/js/jquery.bgiframe.js'),
+            static('django_extensions/js/jquery.ajaxQueue.js'),
+            static('django_extensions/js/jquery.autocomplete.js'),
+        ]
+
+        return forms.Media(
+            css={'all': (static('django_extensions/css/jquery.autocomplete.css'), )},
+            js=js_files,
+        )
+    media = property(_media)
+
+    def label_for_value(self, value):
+        key = self.rel.get_related_field().name
+        obj = self.rel.model._default_manager.get(**{key: value})
+
+        return Truncator(obj).words(14, truncate='...')
+
+    def __init__(self, rel, search_fields, attrs=None):
+        self.search_fields = search_fields
+        super().__init__(rel, site, attrs)
+
+    def render(self, name, value, attrs=None, renderer=None):
+        if attrs is None:
+            attrs = {}
+        opts = self.rel.model._meta
+        app_label = opts.app_label
+        model_name = opts.object_name.lower()
+        related_url = reverse('admin:%s_%s_changelist' % (app_label, model_name))
+        if not self.search_path:
+            self.search_path = urllib.parse.urljoin(related_url, 'foreignkey_autocomplete/')
+        params = self.url_parameters()
+        if params:
+            url = '?' + '&amp;'.join(['%s=%s' % (k, v) for k, v in params.items()])
+        else:
+            url = ''
+
+        if 'class' not in attrs:
+            attrs['class'] = 'vForeignKeyRawIdAdminField'
+        # Call the TextInput render method directly to have more control
+        output = [forms.TextInput.render(self, name, value, attrs)]
+
+        if value:
+            label = self.label_for_value(value)
+        else:
+            label = ''
+
+        context = {
+            'url': url,
+            'related_url': related_url,
+            'search_path': self.search_path,
+            'search_fields': ','.join(self.search_fields),
+            'app_label': app_label,
+            'model_name': model_name,
+            'label': label,
+            'name': name,
+        }
+        output.append(render_to_string(self.widget_template or (
+            'django_extensions/widgets/%s/%s/foreignkey_searchinput.html' % (app_label, model_name),
+            'django_extensions/widgets/%s/foreignkey_searchinput.html' % app_label,
+            'django_extensions/widgets/foreignkey_searchinput.html',
+        ), context))
+        output.reverse()
+
+        return mark_safe(''.join(output))