How can i get the spider name in images pipeline

Question

I have many images pipeline but i want to use the different saving methods for different spiders.

I know that in other pipelines i can use spider.name but how can i get that in the image spipeline

class MyImagesPipeline(ImagesPipeline):
   if spider.name  in ['first']:
    def get_media_requests(self, item, info):

Answer 1

The spider is passed as an argument to process_item:

https://scrapy.readthedocs.org/en/latest/topics/item-pipeline.html#item-pipeline-example

You could either set a variable during evaluation for class wide usage, or implement a hook yourself if you need the spider before process_item is called.

class MyImagesPipeline(ImagesPipeline):
    spider = None

    def process_item(self, item, spider):
        self.spider = spider
        if self.spider.name in ['first']:
            get_media_requests(item, info)
        return item

    def get_media_requests(self, item, info):
        # whatever

You could also retrieve the info directly from the base class, which has an inner meta class SpiderInfo with a spider attribute.

see: https://github.com/scrapy/scrapy/blob/master/scrapy/contrib/pipeline/media.py

Answer 2

info.spider is what you want.

def get_media_requests(self, item, info):
    info.spider.name