Ok, I hadn't sufficient grasp on the way it works. First of all, my first mistake was to call the Itemloader with wrong attribute: Item instead of Item(). `l = ItemLoadel(item=Item(), response=response)` I forgot the parenthesis !
In second place, I misunderstood the way it works. The ItemLoader is just here to populate the Item. Once it's done, when the parse method return the item populated with the l.load_item() method, it's time for the pipeline you've registered in the settings to do its trick, and so, to populate the item.images attribute, download files, et cetera. On Tuesday, 3 January 2017 15:44:28 UTC+1, Bastien wrote: > > Hi everybody, > > I had a spider that used to work nicely but to get a code cleaner I want > to use an ItemLoader to populate my item. My item is pretty simple: > > class ProductItem(scrapy.Item): > title = scrapy.Field() > ean = scrapy.Field() > images = scrapy.Field() > image_urls = scrapy.Field() > > Which are populated through the ProductLoader as following: > > class ProductLoader(ItemLoader): > > > default_output_processor = TakeFirst() > title_in = MapCompose() > title_out = StripString() > ean_in = MapCompose() > ean_out = MapCompose(ean_or_none) > > > > My problem come as soon as I try to load images which are returned as > following from the xpath resolver: > > ['/asset/36/88/image1-XL.jpg', '/asset/36/88/image2-XL.jpg'] > > > If I use the Itemloader to populate 'image_urls', it doesn't use the image > pipeline, so doesn't download images nor populate the 'images' attribute as > it used to be without using the ProductLoader. > > Is it possible to invoke the image pipeline through the Item loader? > > -- You received this message because you are subscribed to the Google Groups "scrapy-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to scrapy-users+unsubscr...@googlegroups.com. To post to this group, send email to scrapy-users@googlegroups.com. Visit this group at https://groups.google.com/group/scrapy-users. For more options, visit https://groups.google.com/d/optout.
