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- # -*- coding: utf-8 -*-
- """
- Neighbor Articles Plugin for Pelican
- ====================================
- This plugin adds ``next_article`` (newer) and ``prev_article`` (older)
- variables to the article's context
- """
- from pelican import signals
- def iter3(seq):
- it = iter(seq)
- nxt = None
- cur = next(it)
- for prv in it:
- yield nxt, cur, prv
- nxt, cur = cur, prv
- yield nxt, cur, None
- def get_translation(article, prefered_language):
- if not article:
- return None
- for translation in article.translations:
- if translation.lang == prefered_language:
- return translation
- return article
- def neighbors(generator):
- for nxt, cur, prv in iter3(generator.articles):
- cur.next_article = nxt
- cur.prev_article = prv
- for translation in cur.translations:
- translation.next_article = get_translation(nxt, translation.lang)
- translation.prev_article = get_translation(prv, translation.lang)
- def register():
- signals.article_generator_finalized.connect(neighbors)
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