mirror of https://github.com/scrapy/scrapy.git
32 lines
948 B
Python
32 lines
948 B
Python
"""
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Item pipeline
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See documentation in docs/item-pipeline.rst
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"""
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from typing import Any, List
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from twisted.internet.defer import Deferred
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from scrapy import Spider
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from scrapy.middleware import MiddlewareManager
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from scrapy.utils.conf import build_component_list
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from scrapy.utils.defer import deferred_f_from_coro_f
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class ItemPipelineManager(MiddlewareManager):
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component_name = "item pipeline"
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@classmethod
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def _get_mwlist_from_settings(cls, settings) -> List[Any]:
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return build_component_list(settings.getwithbase("ITEM_PIPELINES"))
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def _add_middleware(self, pipe: Any) -> None:
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super()._add_middleware(pipe)
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if hasattr(pipe, "process_item"):
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self.methods["process_item"].append(
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deferred_f_from_coro_f(pipe.process_item)
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)
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def process_item(self, item: Any, spider: Spider) -> Deferred:
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return self._process_chain("process_item", item, spider)
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