Python scrapy.loader.processors.TakeFirst() Examples

The following are 7 code examples of scrapy.loader.processors.TakeFirst(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module scrapy.loader.processors , or try the search function .
Example #1
Source File: sitemap_spider.py    From scrapy-templates with MIT License 6 votes vote down vote up 
def scrape_product(self, response):
        item_loader = ItemLoader(item=MyItem(), response=response)
        item_loader.default_input_processor = MapCompose(remove_tags)
        item_loader.default_output_processor = TakeFirst()

        item_loader.add_css("my_field", "selector")

        return item_loader.load_item()
Example #2
Source File: 1scr.py    From scrapy-templates with MIT License 6 votes vote down vote up 
def parse(self, response):
        item_loader = ItemLoader(item=MyItem(), response=response)
        item_loader.default_input_processor = MapCompose(remove_tags)
        item_loader.default_output_processor = TakeFirst()
        #
        #item_loader.add_css("my_field", "my_css")
        #item_loader.add_xpath("my_field", "my_xpath")
        #
        return item_loader.load_item()
Example #3
Source File: price_crawler.py    From scrapy-templates with MIT License 6 votes vote down vote up 
def parse(self, response):
        item = PriceItem()
        item_loader = ItemLoader(item=item, response=response)
        item_loader.default_output_processor = TakeFirst()
        
        item_loader.add_css("price", self.price_css)
        item_loader.add_css("stock", self.stock_css)

        item_loader.add_value("product_id", response.meta.get("product_id"))
        item_loader.add_value("cron_id", self.cron_id)
        item_loader.add_value("shop_id", self.shop_id)
        item_loader.add_value("item_id", str(uuid.uuid1()))
        item_loader.add_value("updated", str(datetime.datetime.now()))
        item_loader.add_value("url", response.url)

        return item_loader.load_item()

    # 2. Updating database by calling the backend API
Example #4
Source File: event.py    From In2ItChicago with GNU General Public License v3.0 5 votes vote down vote up 
def numeric_field():
    return scrapy.Field(input_processor=MapCompose(DataUtils.remove_html), output_processor=TakeFirst())
Example #5
Source File: event.py    From In2ItChicago with GNU General Public License v3.0 5 votes vote down vote up 
def price_field():
    return scrapy.Field(input_processor=MapCompose(
            lambda value: value.replace('$', '') if type(value) == str else value,
            DataUtils.remove_html, float),
        output_processor=TakeFirst())
Example #6
Source File: event.py    From In2ItChicago with GNU General Public License v3.0 5 votes vote down vote up 
def date_field():
    def parse_date(value):
        date_format = value['date_format']
        time_utils = TimeUtils(date_format=date_format)
        date_obj = {**create_time_data(), **value}
        start_timestamp, end_timestamp = time_utils.get_timestamps(date_obj)
        return {
            'start_timestamp': start_timestamp,
            'end_timestamp': end_timestamp
        }

    return scrapy.Field(input_processor=MapCompose(DataUtils.remove_html, parse_date), output_processor=TakeFirst())
Example #7
Source File: 1scr_pag.py    From scrapy-templates with MIT License 5 votes vote down vote up 
def populate_item(self, selector):
        item_loader = ItemLoader(item=MySpiderItem(), selector=selector)
        item_loader.default_input_processor = MapCompose(remove_tags)
        item_loader.default_output_processor = TakeFirst()
        #
        #item_loader.add_css("my_field", "my_css")
        #item_loader.add_xpath("my_field", "my_xpath")
        #
        return item_loader.load_item()