Contoh ItemLoader Scrapy
def parse_news_metro(self, response):
loader = ItemLoader(item=News(), response=response)
loader.add_value('url', response.url)
date_selector = response.css('.artikel > div.block-tanggal::text')
if not date_selector:
return self.parse_news_pilkada(loader, response)
try:
date_time_str = date_selector.extract()[0].split(',')[1].strip()[:-4]
date_time_str = ' '.join([_(x) for x in date_time_str.split(' ')])
published_at_wib = datetime.strptime(date_time_str, '%d %B %Y | %H:%M')
except Exception:
return loader.load_item()
published_at = wib_to_utc(published_at_wib)
if (self.media['last_scraped_at'] >= published_at):
is_no_update = True
self.logger.info('Media have no update')
raise CloseSpider('finished')
loader.add_value('published_at', published_at)
title_selector = response.css('.artikel > h1::text')
if not title_selector:
return loader.load_item()
loader.add_value('title', title_selector.extract()[0])
# Select all p which don't have iframe inside it
raw_content_selector = response.xpath('//div[@class="artikel"]//p[not(iframe)]')
if not raw_content_selector:
return loader.load_item()
raw_content = ''
for rsl in raw_content_selector:
raw_content = raw_content + rsl.extract().strip()
# Go to next page while there is next page button
next_page_selector = response.css('.pagination-nb').xpath('//a[text()="next"]/@href')
if next_page_selector:
return Request(next_page_selector.extract()[0], callback=lambda x, loader=loader, raw_content=raw_content: self.parse_next_page_metro(x, loader, raw_content))
loader.add_value('raw_content', raw_content)
# The author usually put inside <strong> tag, however, some news is not using <strong> tag.
# NOTE: this block of code may need revision in the future
author_name = ''
for author_name_selector in reversed(raw_content_selector):
author_name_selector = author_name_selector.css('strong::text')
for tmp in reversed(author_name_selector.extract()):
tmp = tmp.strip()
if tmp and all((x.isalpha() and x.isupper()) or x.isspace() or x == '.' or x == '|' for x in tmp):
author_name = tmp
break
if author_name:
break
author_name = ','.join(author_name.split(' | '))
loader.add_value('author_name', author_name)
return loader.load_item()
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