Пример #1
0
def filter_field(key, fields, func=None):
    """
    Run a field through the given filter, or default if none is provided. If
    field doesn't exist, it will attempt to return the default value for that
    field.

    :param key: the field name to use
    :param fields: a dictionary of available fields in the form ``name: value``
    :returns: Filtered value
    :raises: KeyError in the event the field can't be found among the provided
        ones or the defaults
    """
    try:
        val = fields[key]
    except KeyError:
        default_fields = getattr(settings, 'PUBLISH_FIELD_DEFAULTS', {})
        FIELD_DEFAULTS.update(default_fields)
        try:
            val = FIELD_DEFAULTS[key]
        except KeyError:
            raise ConfigurationError('You must supply the `%s` field in the'
                            ' article, via settings.PUBLISH_FIELD_DEFAULTS, or'
                            ' via command line (where applicable)' % key)


    default_filters = getattr(settings, 'PUBLISH_FILTER_DEFAULTS', {})
    FILTER_DEFAULTS.update(default_filters)
    f = func or FILTER_DEFAULTS[key] 
    return f(val)
Пример #2
0
def parse_meta_and_article(content):
    """
    Parse out the meta declarations (tags, keywords, etc...) from the article
    and return both.

    :param content: Contents of the article file
    :type content: str
    :returns: dict(meta) and str(article)
    """
    meta_field_names = FILTER_DEFAULTS.keys()
    meta = {}
    article = publish_doctree(content)
    for where, node in enumerate(article.traverse()):
        if node.tagname == 'field':
            label = str(node.children[0].children[0])
            if label in meta_field_names:
                value = str(node.children[1].children[0].children[0])
                meta[label] = value
                node.parent.remove(node)
        elif node.tagname == 'title' and 'title' not in meta:
            value = str(node.children[0])
            meta['title'] = value
            node.parent.remove(node)
    
    raw = parts_from_doctree(article)
    return (meta, raw['fragment'])