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ashish |
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'''
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Created on 06-Jun-2010
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@author: gaurav
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'''
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from scrapy.spider import BaseSpider
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from scrapy.selector import HtmlXPathSelector
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from scrapy.http import Request
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from demo.items import DemoItem
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from scrapy.contrib.spidermiddleware import referer
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from scrapy.http.headers import Headers
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from scrapy.http.request.form import FormRequest
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from scrapy.log import msg
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from scrapy.http.response import Response
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from datastore.DataAccessor import *
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from datastore.DataCodeAccessor import *
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from html2text import *
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import urllib
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class babuchak2(BaseSpider):
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ashish |
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"""
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Documentation for class babuchak2
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This spider collects the url for the individual phones
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and store them in table datastore_datadefinition_babuchak_phoneurls.
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"""
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ashish |
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def __init__(self):
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ashish |
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"""
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Documentation for constructor
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initialize_table is called to make all the tables known in
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the scope of this class.
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Also start url needs to be feeded to the spider through start_urls.append
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Domainname1 is name by which this spider is known outside
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So this will be used as an argument for calling this spider
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"""
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initialize_table()
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#BABUCHAK_DOMAINNAME1 = "babuchak1"
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BABUCHAK_DOMAINNAME1 = get_code_word("BABUCHAK_DOMAINNAME1")
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self.domain_name = BABUCHAK_DOMAINNAME1
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#BABUCHAK_VAR1 = "&postPage="
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BABUCHAK_VAR1 = get_code_word("BABUCHAK_VAR1")
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da = DataHelper()
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for item in da.get_allbabuchakurls():
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ct = item.no_pages
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while ct>0:
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url = item.url + BABUCHAK_VAR1
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url = url + str(ct)
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self.start_urls.append(url)
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ashish |
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ct = ct -1
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ashish |
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def start_requests(self):
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ashish |
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"""
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Documentation for method start_requests
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To set various properties of the request to be made
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like referer, headers and all.
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@return a list of well formed requests which will be
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crawled by spider and spider will return the response
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"""
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listreq = []
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#for each request a referer has to be set
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#BABUCHAK_REFERER = "www.google.com/search"
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BABUCHAK_REFERER = get_code_word("BABUCHAK_REFERER")
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for url1 in self.start_urls:
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request = Request(url = str(url1), callback=self.parse)
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request.headers.setdefault("Referer", BABUCHAK_REFERER)
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listreq.append(request)
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return listreq
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def parse(self, response):
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ashish |
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"""
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Documentation for method parse
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@param response of individual requests
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Using Xpaths needed information is extracted out of the response
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and added to the database
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Xpath4 = Give us url for individual phone
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Url2 = To get full url for individual vendors
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"""
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da = DataHelper()
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#BABUCHAK_URL2 = "http://www.shopping.babuchak.com/visitourstores.php"
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BABUCHAK_URL2 = get_code_word("BABUCHAK_URL2")
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hxs = HtmlXPathSelector(response)
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#BABUCHAK_XPATH4 = '//td[@class="mod-item-body-title"]/a/@href'
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BABUCHAK_XPATH4 = get_code_word("BABUCHAK_XPATH4")
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info = hxs.select(BABUCHAK_XPATH4)
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for i in info:
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url = i.extract()
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url = url.strip()
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url = BABUCHAK_URL2 + url
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da.add_babuchakphoneurl(url)
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SPIDER = babuchak2()
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