web/lib/django/contrib/admindocs/views.py
changeset 38 77b6da96e6f1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/admindocs/views.py	Wed Jun 02 18:57:35 2010 +0200
@@ -0,0 +1,383 @@
+from django import template, templatetags
+from django.template import RequestContext
+from django.conf import settings
+from django.contrib.admin.views.decorators import staff_member_required
+from django.db import models
+from django.shortcuts import render_to_response
+from django.core.exceptions import ImproperlyConfigured, ViewDoesNotExist
+from django.http import Http404
+from django.core import urlresolvers
+from django.contrib.admindocs import utils
+from django.contrib.sites.models import Site
+from django.utils.importlib import import_module
+from django.utils.translation import ugettext as _
+from django.utils.safestring import mark_safe
+import inspect, os, re
+
+# Exclude methods starting with these strings from documentation
+MODEL_METHODS_EXCLUDE = ('_', 'add_', 'delete', 'save', 'set_')
+
+class GenericSite(object):
+    domain = 'example.com'
+    name = 'my site'
+
+def get_root_path():
+    try:
+        return urlresolvers.reverse('admin:index')
+    except urlresolvers.NoReverseMatch:
+        from django.contrib import admin
+        try:
+            return urlresolvers.reverse(admin.site.root, args=[''])
+        except urlresolvers.NoReverseMatch:
+            return getattr(settings, "ADMIN_SITE_ROOT_URL", "/admin/")
+
+def doc_index(request):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+    return render_to_response('admin_doc/index.html', {
+        'root_path': get_root_path(),
+    }, context_instance=RequestContext(request))
+doc_index = staff_member_required(doc_index)
+
+def bookmarklets(request):
+    admin_root = get_root_path()
+    return render_to_response('admin_doc/bookmarklets.html', {
+        'root_path': admin_root,
+        'admin_url': mark_safe("%s://%s%s" % (request.is_secure() and 'https' or 'http', request.get_host(), admin_root)),
+    }, context_instance=RequestContext(request))
+bookmarklets = staff_member_required(bookmarklets)
+
+def template_tag_index(request):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+
+    load_all_installed_template_libraries()
+
+    tags = []
+    for module_name, library in template.libraries.items():
+        for tag_name, tag_func in library.tags.items():
+            title, body, metadata = utils.parse_docstring(tag_func.__doc__)
+            if title:
+                title = utils.parse_rst(title, 'tag', _('tag:') + tag_name)
+            if body:
+                body = utils.parse_rst(body, 'tag', _('tag:') + tag_name)
+            for key in metadata:
+                metadata[key] = utils.parse_rst(metadata[key], 'tag', _('tag:') + tag_name)
+            if library in template.builtins:
+                tag_library = None
+            else:
+                tag_library = module_name.split('.')[-1]
+            tags.append({
+                'name': tag_name,
+                'title': title,
+                'body': body,
+                'meta': metadata,
+                'library': tag_library,
+            })
+    return render_to_response('admin_doc/template_tag_index.html', {
+        'root_path': get_root_path(),
+        'tags': tags
+    }, context_instance=RequestContext(request))
+template_tag_index = staff_member_required(template_tag_index)
+
+def template_filter_index(request):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+
+    load_all_installed_template_libraries()
+
+    filters = []
+    for module_name, library in template.libraries.items():
+        for filter_name, filter_func in library.filters.items():
+            title, body, metadata = utils.parse_docstring(filter_func.__doc__)
+            if title:
+                title = utils.parse_rst(title, 'filter', _('filter:') + filter_name)
+            if body:
+                body = utils.parse_rst(body, 'filter', _('filter:') + filter_name)
+            for key in metadata:
+                metadata[key] = utils.parse_rst(metadata[key], 'filter', _('filter:') + filter_name)
+            if library in template.builtins:
+                tag_library = None
+            else:
+                tag_library = module_name.split('.')[-1]
+            filters.append({
+                'name': filter_name,
+                'title': title,
+                'body': body,
+                'meta': metadata,
+                'library': tag_library,
+            })
+    return render_to_response('admin_doc/template_filter_index.html', {
+        'root_path': get_root_path(),
+        'filters': filters
+    }, context_instance=RequestContext(request))
+template_filter_index = staff_member_required(template_filter_index)
+
+def view_index(request):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+
+    if settings.ADMIN_FOR:
+        settings_modules = [import_module(m) for m in settings.ADMIN_FOR]
+    else:
+        settings_modules = [settings]
+
+    views = []
+    for settings_mod in settings_modules:
+        urlconf = import_module(settings_mod.ROOT_URLCONF)
+        view_functions = extract_views_from_urlpatterns(urlconf.urlpatterns)
+        if Site._meta.installed:
+            site_obj = Site.objects.get(pk=settings_mod.SITE_ID)
+        else:
+            site_obj = GenericSite()
+        for (func, regex) in view_functions:
+            views.append({
+                'name': getattr(func, '__name__', func.__class__.__name__),
+                'module': func.__module__,
+                'site_id': settings_mod.SITE_ID,
+                'site': site_obj,
+                'url': simplify_regex(regex),
+            })
+    return render_to_response('admin_doc/view_index.html', {
+        'root_path': get_root_path(),
+        'views': views
+    }, context_instance=RequestContext(request))
+view_index = staff_member_required(view_index)
+
+def view_detail(request, view):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+
+    mod, func = urlresolvers.get_mod_func(view)
+    try:
+        view_func = getattr(import_module(mod), func)
+    except (ImportError, AttributeError):
+        raise Http404
+    title, body, metadata = utils.parse_docstring(view_func.__doc__)
+    if title:
+        title = utils.parse_rst(title, 'view', _('view:') + view)
+    if body:
+        body = utils.parse_rst(body, 'view', _('view:') + view)
+    for key in metadata:
+        metadata[key] = utils.parse_rst(metadata[key], 'model', _('view:') + view)
+    return render_to_response('admin_doc/view_detail.html', {
+        'root_path': get_root_path(),
+        'name': view,
+        'summary': title,
+        'body': body,
+        'meta': metadata,
+    }, context_instance=RequestContext(request))
+view_detail = staff_member_required(view_detail)
+
+def model_index(request):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+    m_list = [m._meta for m in models.get_models()]
+    return render_to_response('admin_doc/model_index.html', {
+        'root_path': get_root_path(),
+        'models': m_list
+    }, context_instance=RequestContext(request))
+model_index = staff_member_required(model_index)
+
+def model_detail(request, app_label, model_name):
+    if not utils.docutils_is_available:
+        return missing_docutils_page(request)
+
+    # Get the model class.
+    try:
+        app_mod = models.get_app(app_label)
+    except ImproperlyConfigured:
+        raise Http404(_("App %r not found") % app_label)
+    model = None
+    for m in models.get_models(app_mod):
+        if m._meta.object_name.lower() == model_name:
+            model = m
+            break
+    if model is None:
+        raise Http404(_("Model %(model_name)r not found in app %(app_label)r") % {'model_name': model_name, 'app_label': app_label})
+
+    opts = model._meta
+
+    # Gather fields/field descriptions.
+    fields = []
+    for field in opts.fields:
+        # ForeignKey is a special case since the field will actually be a
+        # descriptor that returns the other object
+        if isinstance(field, models.ForeignKey):
+            data_type = related_object_name = field.rel.to.__name__
+            app_label = field.rel.to._meta.app_label
+            verbose = utils.parse_rst((_("the related `%(app_label)s.%(data_type)s` object")  % {'app_label': app_label, 'data_type': data_type}), 'model', _('model:') + data_type)
+        else:
+            data_type = get_readable_field_data_type(field)
+            verbose = field.verbose_name
+        fields.append({
+            'name': field.name,
+            'data_type': data_type,
+            'verbose': verbose,
+            'help_text': field.help_text,
+        })
+
+    # Gather many-to-many fields.
+    for field in opts.many_to_many:
+        data_type = related_object_name = field.rel.to.__name__
+        app_label = field.rel.to._meta.app_label
+        verbose = _("related `%(app_label)s.%(object_name)s` objects") % {'app_label': app_label, 'object_name': data_type}
+        fields.append({
+            'name': "%s.all" % field.name,
+            "data_type": 'List',
+            'verbose': utils.parse_rst(_("all %s") % verbose , 'model', _('model:') + opts.module_name),
+        })
+        fields.append({
+            'name'      : "%s.count" % field.name,
+            'data_type' : 'Integer',
+            'verbose'   : utils.parse_rst(_("number of %s") % verbose , 'model', _('model:') + opts.module_name),
+        })
+
+    # Gather model methods.
+    for func_name, func in model.__dict__.items():
+        if (inspect.isfunction(func) and len(inspect.getargspec(func)[0]) == 1):
+            try:
+                for exclude in MODEL_METHODS_EXCLUDE:
+                    if func_name.startswith(exclude):
+                        raise StopIteration
+            except StopIteration:
+                continue
+            verbose = func.__doc__
+            if verbose:
+                verbose = utils.parse_rst(utils.trim_docstring(verbose), 'model', _('model:') + opts.module_name)
+            fields.append({
+                'name': func_name,
+                'data_type': get_return_data_type(func_name),
+                'verbose': verbose,
+            })
+
+    # Gather related objects
+    for rel in opts.get_all_related_objects() + opts.get_all_related_many_to_many_objects():
+        verbose = _("related `%(app_label)s.%(object_name)s` objects") % {'app_label': rel.opts.app_label, 'object_name': rel.opts.object_name}
+        accessor = rel.get_accessor_name()
+        fields.append({
+            'name'      : "%s.all" % accessor,
+            'data_type' : 'List',
+            'verbose'   : utils.parse_rst(_("all %s") % verbose , 'model', _('model:') + opts.module_name),
+        })
+        fields.append({
+            'name'      : "%s.count" % accessor,
+            'data_type' : 'Integer',
+            'verbose'   : utils.parse_rst(_("number of %s") % verbose , 'model', _('model:') + opts.module_name),
+        })
+    return render_to_response('admin_doc/model_detail.html', {
+        'root_path': get_root_path(),
+        'name': '%s.%s' % (opts.app_label, opts.object_name),
+        'summary': _("Fields on %s objects") % opts.object_name,
+        'description': model.__doc__,
+        'fields': fields,
+    }, context_instance=RequestContext(request))
+model_detail = staff_member_required(model_detail)
+
+def template_detail(request, template):
+    templates = []
+    for site_settings_module in settings.ADMIN_FOR:
+        settings_mod = import_module(site_settings_module)
+        if Site._meta.installed:
+            site_obj = Site.objects.get(pk=settings_mod.SITE_ID)
+        else:
+            site_obj = GenericSite()
+        for dir in settings_mod.TEMPLATE_DIRS:
+            template_file = os.path.join(dir, template)
+            templates.append({
+                'file': template_file,
+                'exists': os.path.exists(template_file),
+                'contents': lambda: os.path.exists(template_file) and open(template_file).read() or '',
+                'site_id': settings_mod.SITE_ID,
+                'site': site_obj,
+                'order': list(settings_mod.TEMPLATE_DIRS).index(dir),
+            })
+    return render_to_response('admin_doc/template_detail.html', {
+        'root_path': get_root_path(),
+        'name': template,
+        'templates': templates,
+    }, context_instance=RequestContext(request))
+template_detail = staff_member_required(template_detail)
+
+####################
+# Helper functions #
+####################
+
+def missing_docutils_page(request):
+    """Display an error message for people without docutils"""
+    return render_to_response('admin_doc/missing_docutils.html')
+
+def load_all_installed_template_libraries():
+    # Load/register all template tag libraries from installed apps.
+    for module_name in template.get_templatetags_modules():
+        mod = import_module(module_name)
+        libraries = [
+            os.path.splitext(p)[0]
+            for p in os.listdir(os.path.dirname(mod.__file__))
+            if p.endswith('.py') and p[0].isalpha()
+        ]
+        for library_name in libraries:
+            try:
+                lib = template.get_library(library_name)
+            except template.InvalidTemplateLibrary, e:
+                pass
+
+def get_return_data_type(func_name):
+    """Return a somewhat-helpful data type given a function name"""
+    if func_name.startswith('get_'):
+        if func_name.endswith('_list'):
+            return 'List'
+        elif func_name.endswith('_count'):
+            return 'Integer'
+    return ''
+
+def get_readable_field_data_type(field):
+    """Returns the description for a given field type, if it exists,
+    Fields' descriptions can contain format strings, which will be interpolated
+    against the values of field.__dict__ before being output."""
+
+    return field.description % field.__dict__
+
+def extract_views_from_urlpatterns(urlpatterns, base=''):
+    """
+    Return a list of views from a list of urlpatterns.
+
+    Each object in the returned list is a two-tuple: (view_func, regex)
+    """
+    views = []
+    for p in urlpatterns:
+        if hasattr(p, '_get_callback'):
+            try:
+                views.append((p._get_callback(), base + p.regex.pattern))
+            except ViewDoesNotExist:
+                continue
+        elif hasattr(p, '_get_url_patterns'):
+            try:
+                patterns = p.url_patterns
+            except ImportError:
+                continue
+            views.extend(extract_views_from_urlpatterns(patterns, base + p.regex.pattern))
+        else:
+            raise TypeError(_("%s does not appear to be a urlpattern object") % p)
+    return views
+
+named_group_matcher = re.compile(r'\(\?P(<\w+>).+?\)')
+non_named_group_matcher = re.compile(r'\(.*?\)')
+
+def simplify_regex(pattern):
+    """
+    Clean up urlpattern regexes into something somewhat readable by Mere Humans:
+    turns something like "^(?P<sport_slug>\w+)/athletes/(?P<athlete_slug>\w+)/$"
+    into "<sport_slug>/athletes/<athlete_slug>/"
+    """
+    # handle named groups first
+    pattern = named_group_matcher.sub(lambda m: m.group(1), pattern)
+
+    # handle non-named groups
+    pattern = non_named_group_matcher.sub("<var>", pattern)
+
+    # clean up any outstanding regex-y characters.
+    pattern = pattern.replace('^', '').replace('$', '').replace('?', '').replace('//', '/').replace('\\', '')
+    if not pattern.startswith('/'):
+        pattern = '/' + pattern
+    return pattern