def render_template_string(request,
ctx,
template,
minify_html=None,
extra_ctx=None):
with graphite_timer('jinja2.render_template_string'):
if minify_html is None:
minify_html = template.endswith('.html')
if extra_ctx:
if not is_seq_not_string(extra_ctx):
extra_ctx = [extra_ctx]
new_ctx = {}
page_load_hooks = ctx.get('__js_page_load_hooks', [])
for ctx_callable in extra_ctx:
ctx_item = ctx_callable(request)
if ctx_item:
if '__js_page_load_hooks' in ctx_item:
page_load_hooks.extend(
ctx_item['__js_page_load_hooks'])
del ctx_item['__js_page_load_hooks']
new_ctx.update(ctx_item)
new_ctx.update(ctx)
new_ctx['__js_page_load_hooks'] = page_load_hooks
ctx = new_ctx
with graphite_timer('jinja2.render_to_string'):
output = render_to_string(template,
ctx,
context_instance=RequestContext(request))
if isinstance(output, unicode):
output = output.encode('utf-8')
if ctx and ctx.get('__no_minify'):
minify_html = False
if minify_html:
with graphite_timer('jinja2.minify_html'):
output = slimmer.html_slimmer(output)
return output
def render_template_string(request, ctx, template, minify_html=None, extra_ctx=None):
with graphite_timer('jinja2.render_template_string'):
if minify_html is None:
minify_html = template.endswith('.html')
if extra_ctx:
if not is_seq_not_string(extra_ctx):
extra_ctx = [extra_ctx]
new_ctx = {}
page_load_hooks = ctx.get('__js_page_load_hooks', [])
for ctx_callable in extra_ctx:
ctx_item = ctx_callable(request)
if ctx_item:
if '__js_page_load_hooks' in ctx_item:
page_load_hooks.extend(ctx_item['__js_page_load_hooks'])
del ctx_item['__js_page_load_hooks']
new_ctx.update(ctx_item)
new_ctx.update(ctx)
new_ctx['__js_page_load_hooks'] = page_load_hooks
ctx = new_ctx
with graphite_timer('jinja2.render_to_string'):
output = render_to_string(template, ctx, context_instance=RequestContext(request))
if isinstance(output, unicode):
output = output.encode('utf-8')
if ctx and ctx.get('__no_minify'):
minify_html = False
if minify_html:
with graphite_timer('jinja2.minify_html'):
output = slimmer.html_slimmer(output)
return output
def bulk_load_related(objs, field_name):
with graphite_timer('c4g.bulk_load_related', extras={'field':
field_name}) as timer:
if not objs:
timer['empty'] = True
return []
if not is_seq_not_string(objs):
# if we were passed a single object, make it a list
objs = [objs]
timer.incr('objs', len(objs))
sample_obj = objs[0]
field = sample_obj._meta.get_field(field_name)
timer['model'] = '%s.%s' % (sample_obj._meta.app_label,
sample_obj._meta.module_name)
cache_name = field.get_cache_name()
# Additionally: possibly update this to coalesce objects
pending_objs = itertools.ifilter(
lambda obj: not hasattr(obj, cache_name), objs)
unique_fks = set(
itertools.ifilter(None, (itertools.imap(
operator.attrgetter(field.attname), pending_objs))))
related_objs = field.rel.to._c4g_manager.by_pks_as_dict(unique_fks)
for obj in objs:
related_obj_id = getattr(obj, field.attname)
if hasattr(obj, cache_name):
# In this case, we want to reduce all of the related objs
# to a single instance
if related_obj_id not in related_objs:
related_objs[related_obj_id] = getattr(obj, cache_name)
else:
setattr(obj, cache_name, related_objs[related_obj_id])
continue
related_obj = related_objs.get(related_obj_id)
if field.null or related_obj:
setattr(obj, cache_name, related_obj)
if field.unique and related_obj:
setattr(related_obj, field.related.get_cache_name(), obj)
return related_objs.values()
def bulk_load_related(objs, field_name):
with graphite_timer('c4g.bulk_load_related', extras={'field': field_name}) as timer:
if not objs:
timer['empty'] = True
return []
if not is_seq_not_string(objs):
# if we were passed a single object, make it a list
objs = [objs]
timer.incr('objs', len(objs))
sample_obj = objs[0]
field = sample_obj._meta.get_field(field_name)
timer['model'] = '%s.%s' % (sample_obj._meta.app_label, sample_obj._meta.module_name)
cache_name = field.get_cache_name()
# Additionally: possibly update this to coalesce objects
pending_objs = itertools.ifilter(lambda obj: not hasattr(obj, cache_name), objs)
unique_fks = set(itertools.ifilter(None, (itertools.imap(operator.attrgetter(field.attname), pending_objs))))
related_objs = field.rel.to._c4g_manager.by_pks_as_dict(unique_fks)
for obj in objs:
related_obj_id = getattr(obj, field.attname)
if hasattr(obj, cache_name):
# In this case, we want to reduce all of the related objs
# to a single instance
if related_obj_id not in related_objs:
related_objs[related_obj_id] = getattr(obj, cache_name)
else:
setattr(obj, cache_name, related_objs[related_obj_id])
continue
related_obj = related_objs.get(related_obj_id)
if field.null or related_obj:
setattr(obj, cache_name, related_obj)
if field.unique and related_obj:
setattr(related_obj, field.related.get_cache_name(), obj)
return related_objs.values()