c80982c7a0
I added mg_globals.thread_scope (an instance of threading.local) and made `translations' an attribute of it.
128 lines
4.1 KiB
Python
128 lines
4.1 KiB
Python
# GNU MediaGoblin -- federated, autonomous media hosting
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# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from math import ceil
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import jinja2
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from babel.localedata import exists
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from mediagoblin import mg_globals
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from mediagoblin import messages
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from mediagoblin.tools import common
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from mediagoblin.tools.translate import setup_gettext
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from mediagoblin.meddleware.csrf import render_csrf_form_token
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SETUP_JINJA_ENVS = {}
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def get_jinja_env(template_loader, locale):
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"""
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Set up the Jinja environment,
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(In the future we may have another system for providing theming;
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for now this is good enough.)
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"""
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setup_gettext(locale)
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# If we have a jinja environment set up with this locale, just
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# return that one.
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if SETUP_JINJA_ENVS.has_key(locale):
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return SETUP_JINJA_ENVS[locale]
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# jinja2.StrictUndefined will give exceptions on references
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# to undefined/unknown variables in templates.
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template_env = jinja2.Environment(
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loader=template_loader, autoescape=True,
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undefined=jinja2.StrictUndefined,
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extensions=['jinja2.ext.i18n', 'jinja2.ext.autoescape'])
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template_env.install_gettext_callables(
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mg_globals.thread_scope.translations.ugettext,
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mg_globals.thread_scope.translations.ungettext)
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# All templates will know how to ...
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# ... fetch all waiting messages and remove them from the queue
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# ... construct a grid of thumbnails or other media
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# ... have access to the global and app config
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template_env.globals['fetch_messages'] = messages.fetch_messages
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template_env.globals['gridify_list'] = gridify_list
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template_env.globals['gridify_cursor'] = gridify_cursor
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template_env.globals['app_config'] = mg_globals.app_config
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template_env.globals['global_config'] = mg_globals.global_config
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if exists(locale):
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SETUP_JINJA_ENVS[locale] = template_env
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return template_env
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# We'll store context information here when doing unit tests
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TEMPLATE_TEST_CONTEXT = {}
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def render_template(request, template_path, context):
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"""
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Render a template with context.
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Always inserts the request into the context, so you don't have to.
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Also stores the context if we're doing unit tests. Helpful!
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"""
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template = request.template_env.get_template(
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template_path)
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context['request'] = request
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rendered_csrf_token = render_csrf_form_token(request)
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if rendered_csrf_token is not None:
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context['csrf_token'] = render_csrf_form_token(request)
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rendered = template.render(context)
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if common.TESTS_ENABLED:
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TEMPLATE_TEST_CONTEXT[template_path] = context
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return rendered
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def clear_test_template_context():
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global TEMPLATE_TEST_CONTEXT
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TEMPLATE_TEST_CONTEXT = {}
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def gridify_list(this_list, num_cols=5):
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"""
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Generates a list of lists where each sub-list's length depends on
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the number of columns in the list
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"""
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grid = []
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# Figure out how many rows we should have
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num_rows = int(ceil(float(len(this_list)) / num_cols))
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for row_num in range(num_rows):
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slice_min = row_num * num_cols
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slice_max = (row_num + 1) * num_cols
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row = this_list[slice_min:slice_max]
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grid.append(row)
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return grid
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def gridify_cursor(this_cursor, num_cols=5):
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"""
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Generates a list of lists where each sub-list's length depends on
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the number of columns in the list
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"""
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return gridify_list(list(this_cursor), num_cols)
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