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Support ordering pages and articles when iterating in templates.

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Order can be set to a metadata attribute or a sorting function.
Default to order by slug for articles and order by filename for pages.
This commit is contained in:
David Marble 2013-11-14 12:29:01 -08:00 • committed by Mark Lee
commit 0c69f4ad84
4 changed files with 43 additions and 3 deletions
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26
pelican/utils.py
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@ -430,7 +430,7 @@ def truncate_html_words(s, num, end_text='...'):
return out
def process_translations(content_list):
def process_translations(content_list, order_by=None):
""" Finds translation and returns them.
Returns a tuple with two lists (index, translations). Index list includes
@ -440,6 +440,14 @@ def process_translations(content_list):
the same slug have that metadata.
For each content_list item, sets the 'translations' attribute.
order_by can be a string of an attribute or sorting function. If order_by
is defined, content will be ordered by that attribute or sorting function.
By default, content is ordered by slug.
Different content types can have default order_by attributes defined
in settings, e.g. PAGES_ORDER_BY='sort-order', in which case `sort-order`
should be a defined metadata attribute in each page.
"""
content_list.sort(key=attrgetter('slug'))
grouped_by_slugs = groupby(content_list, attrgetter('slug'))
@ -485,6 +493,22 @@ def process_translations(content_list):
translations.extend([x for x in items if x not in default_lang_items])
for a in items:
a.translations = [x for x in items if x != a]
if order_by:
if hasattr(order_by, '__call__'):
try:
index.sort(key=order_by)
except:
if hasattr(order_by, 'func_name'):
logger.error("Error sorting with function %s" % order_by.func_name)
else:
logger.error("Error sorting with function %r" % order_by)
elif order_by == 'filename':
index.sort(key=lambda x:os.path.basename(
x.source_path or ''))
elif order_by != 'slug':
index.sort(key=attrgetter(order_by))
return index, translations