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Code Releases Wiki Activity

updte nested loader documentation

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Daniel Collins 2015-09-15 23:49:35 -07:00
parent 311d5cd495
commit 036109e7de
1 changed files with 11 additions and 3 deletions
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14
docs/topics/loaders.rst
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@ -432,9 +432,17 @@ ItemLoader objects
<topics-loaders-processors>` to get the final value to assign to each
item field.
.. method:: nested_loader(xpath=selector, css=selector)
.. method:: nested_xpath(xpath)
Create a nested loader with either an xpath selector or css selector.
Create a nested loader with an xpath selector.
The supplied selector is applied relative to selector associated
with this :class:`ItemLoader`. The nested loader shares the :class:`Item`
with the parent :class:`ItemLoader` so calls to :meth:`add_xpath`,
:meth:`add_value`, :meth:`replace_value`, etc. will behave as expected.
.. method:: nested_css(css)
Create a nested loader with a css selector.
The supplied selector is applied relative to selector associated
with this :class:`ItemLoader`. The nested loader shares the :class:`Item`
with the parent :class:`ItemLoader` so calls to :meth:`add_xpath`,
@ -534,7 +542,7 @@ Example::
loader = ItemLoader(item=Item())
# load stuff not in the footer
footer_loader = loader.nested_loader(xpath='//footer')
footer_loader = loader.nested_xpath('//footer')
footer_loader.add_xpath('social', 'a[@class = "social"]/@href')
footer_loader.add_xpath('email', 'a[@class = "email"]/@href')
# no need to call footer_loader.load_item()