Scrapy pipeline for MSSQL

Question

I am writing my own pipeline for Python scrapy:

from scrapy.exceptions import NotConfigured
from scrapy.exceptions import DropItem
import pymssql

from slybot.item import create_item_version

class SQLStore(object):
  def __init__(self):
    self.conn = pymssql.connect(host='XXXXXX', user='sa', password='1timep', database='DBSample')
    self.cursor = self.conn.cursor()
    #log data to json file


def process_item(self, item, spider): 

    try:
        self.cursor.execute("INSERT INTO Movie(Description, Location,Title) VALUES (%s, %s, %s)", (item['Description'], item['Location'], item['Title']))
        self.conn.commit()

    except pymssql.Error, e:
        print ("error")

        return item

I am trying to insert the values into SQL server.

Below is my spider setting:

ITEM_PIPELINES = {'slybot.dupefilter.SQLStore' : 100}

It is working fine. And when i submit my spider in Scrapyd i am seeing the below log file

2015-01-19 16:07:57+0530 [scrapy] INFO: Enabled item pipelines: SQLStore

From the log file i am seeing that my spider is using the SQLStore pipline.

But the values are not loaded into SQL server . I am able to see the content in the log files in the json format.

What went wrong. And what is the problem?

Can anyone please help me? Thanks.

Answer 1

The code is not properly indented. process_item is on the same level as SQLStore class definition, hence it is not a method of a class and is never called. Indent it:

import pymssql

from slybot.item import create_item_version


class SQLStore(object):
    def __init__(self):
        self.conn = pymssql.connect(host='XXXXXX', user='sa', password='1timep', database='DBSample')
        self.cursor = self.conn.cursor()

    def process_item(self, item, spider):
        try:
            self.cursor.execute("INSERT INTO Movie(Description, Location,Title) VALUES (%s, %s, %s)",
                                (item['Description'], item['Location'], item['Title']))
            self.conn.commit()
        except pymssql.Error, e:
            print ("error")

        return item