Fixed #12872 -- Removed vestiges of mythic old template validation admin app functionality.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14055 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/templates/admin/template_validator.html

-{% extends "admin/base_site.html" %}
-
-{% block content %}
-
-<div id="content-main">
-
-<form action="" method="post">{% csrf_token %}
-
-{% if form.errors %}
-<p class="errornote">Your template had {{ form.errors|length }} error{{ form.errors|pluralize }}:</p>
-{% endif %}
-
-<fieldset class="module aligned">
-<div class="form-row{% if form.errors.site %} error{% endif %} required">
-    {{ form.errors.site }}
-    <h4><label for="id_site">{{ form.site.label }}:</label> {{ form.site }}</h4>
-</div>
-<div class="form-row{% if form.errors.template %} error{% endif %} required">
-    {{ form.errors.template }}
-    <h4><label for="id_template">{{ form.template.label }}:</label> {{ form.template }}</h4>
-</div>
-</fieldset>
-
-<div class="submit-row">
-    <input type="submit" value="Check for errors" class="default" />
-</div>
-
-</form>
-</div>
-
-{% endblock %}

django/contrib/admin/views/template.py

-from django import template, forms
-from django.contrib.admin.views.decorators import staff_member_required
-from django.template import loader
-from django.shortcuts import render_to_response
-from django.contrib.sites.models import Site
-from django.conf import settings
-from django.utils.importlib import import_module
-from django.utils.translation import ugettext_lazy as _
-from django.contrib import messages
-
-
-def template_validator(request):
-    """
-    Displays the template validator form, which finds and displays template
-    syntax errors.
-    """
-    # get a dict of {site_id : settings_module} for the validator
-    settings_modules = {}
-    for mod in settings.ADMIN_FOR:
-        settings_module = import_module(mod)
-        settings_modules[settings_module.SITE_ID] = settings_module
-    site_list = Site.objects.in_bulk(settings_modules.keys()).values()
-    if request.POST:
-        form = TemplateValidatorForm(settings_modules, site_list,
-                                     data=request.POST)
-        if form.is_valid():
-            messages.info(request, 'The template is valid.')
-    else:
-        form = TemplateValidatorForm(settings_modules, site_list)
-    return render_to_response('admin/template_validator.html', {
-        'title': 'Template validator',
-        'form': form,
-    }, context_instance=template.RequestContext(request))
-template_validator = staff_member_required(template_validator)
-
-
-class TemplateValidatorForm(forms.Form):
-    site = forms.ChoiceField(_('site'))
-    template = forms.CharField(
-        _('template'), widget=forms.Textarea({'rows': 25, 'cols': 80}))
-
-    def __init__(self, settings_modules, site_list, *args, **kwargs):
-        self.settings_modules = settings_modules
-        super(TemplateValidatorForm, self).__init__(*args, **kwargs)
-        self.fields['site'].choices = [(s.id, s.name) for s in site_list]
-
-    def clean_template(self):
-        # Get the settings module. If the site isn't set, we don't raise an
-        # error since the site field will.
-        try:
-            site_id = int(self.cleaned_data.get('site', None))
-        except (ValueError, TypeError):
-            return
-        settings_module = self.settings_modules.get(site_id, None)
-        if settings_module is None:
-            return
-
-        # So that inheritance works in the site's context, register a new
-        # function for "extends" that uses the site's TEMPLATE_DIRS instead.
-        def new_do_extends(parser, token):
-            node = loader.do_extends(parser, token)
-            node.template_dirs = settings_module.TEMPLATE_DIRS
-            return node
-        register = template.Library()
-        register.tag('extends', new_do_extends)
-        template.builtins.append(register)
-
-        # Now validate the template using the new TEMPLATE_DIRS, making sure to
-        # reset the extends function in any case.
-        error = None
-        template_string = self.cleaned_data['template']
-        try:
-            tmpl = loader.get_template_from_string(template_string)
-            tmpl.render(template.Context({}))
-        except template.TemplateSyntaxError, e:
-            error = e
-        template.builtins.remove(register)
-        if error:
-            raise forms.ValidationError(e.args)