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#! /usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = "Cedric Bonhomme"
__version__ = "$Revision: 0.1 $"
__date__ = "$Date: 2012/03/03 $"
__revision__ = "$Date: 2012/03/03 $"
__copyright__ = "Copyright (c) Cedric Bonhomme"
__license__ = "GPLv3"
import time
import pymongo
class Articles(object):
"""
"""
def __init__(self, url='localhost', port=27017):
"""
Instantiates the connection.
"""
self.connection = pymongo.connection.Connection(url, port)
self.db = self.connection.pyaggr3g470r
def add_collection(self, new_collection):
"""
Creates a new collection for a new feed.
"""
new_collection["type"] = 0
name = str(new_collection["collection_id"])
pymongo.collection.Collection(self.db, name)
collection = self.db[name]
collection.create_index([("article_link", pymongo.ASCENDING)], {"unique":True, "sparse":True})
collection.insert(new_collection)
def add_articles(self, articles, collection_id):
"""
Add article(s) in a collection.
"""
collection = self.db[str(collection_id)]
for article in articles:
article["type"] = 1
cursor = collection.find({"article_id":article["article_id"]})
if cursor.count() == 0:
collection.insert(article)
def get_all_articles(self):
"""
Return all articles from all collections.
"""
articles = []
collections = self.db.collection_names()
for collection_name in collections:
collection = self.db[collection_name]
articles.append(collection)
return articles
def get_articles_from_collection(self, collection_id):
"""
Return all the articles of a collection.
"""
collection = self.db[str(collection_id)]
return collection
def print_articles_from_collection(self, collection_id):
"""
Print the articles of a collection.
"""
collection = self.db[str(collection_id)]
cursor = collection.find({"type":1})
print "Article for the collection", collection_id
for d in cursor:
print d
print
def nb_users(self):
"""
Return the number of users.
"""
collection = self.db.users
collection.count()
def list_collections(self):
"""
List all collections (feed).
"""
collections = self.db.collection_names()
return collections
# Functions on database
def drop_database(self):
"""
Drop all the database
"""
self.connection.drop_database('pyaggr3g470r')
if __name__ == "__main__":
# Point of entry in execution mode.
articles = Articles()
# Create a collection for a stream
collection_dic = {"collection_id": 42,\
"feed_image": "Image", \
"feed_title": "Title", \
"feed_link": "Link", \
"site_title": "Site link", \
"mail": True, \
}
#articles.add_collection(collection_dic)
# Add an article in the newly created collection
article_dic1 = {"article_id": 51, \
"article_date": "Today", \
"article_link": "Link of the article", \
"article_title": "The title", \
"article_content": "The content of the article", \
"article_readed": True, \
"article_like": True \
}
article_dic2 = {"article_id": 52, \
"article_date": "Yesterday", \
"article_link": "Link", \
"article_title": "Hello", \
"article_content": "The content of the article", \
"article_readed": True, \
"article_like": True \
}
#articles.add_articles([article_dic1, article_dic2], 42)
# Print articles of the collection
articles.print_articles_from_collection("http://esr.ibiblio.org/?feed=rss2")
print "All articles:"
#print articles.get_all_articles()
# Drop the database
#articles.drop_database()
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