Welcome to Pydanny PresentationS¶
Contents:
List of Dictionaries¶
collection = []
document = {
'_objectId': ObjectId('4f844e916c97c1000c000003'),
'username': 'pydanny',
'fiancee': 'audreyr'
}
collection = [document, ]
collection = [document] # JavaScript version. :-)
MongoKit Model Example¶
from mongokit import Document, Connection
connection = Connection()
@connection.register
class Review(Document):
structure = {
'title':unicode,
'body':unicode,
'author':unicode,
'created':datetime.datetime,
'rating':int
}
required_fields = ['title', 'author', 'created']
default_values = {'rating': 0, 'created': datetime.utcnow}
MongoKit Query Example¶
>>> from mongokit import Connection
>>> connection = Connection()
>>> for review in connection.Review.find({'rating': 3}):
... review['title']
MongoEngine Model Example¶
import mongoengine as me
class Review(me.Document):
title = me.StringField()
body = me.StringField()
author = me.StringField()
created = me.DateTimeField(default=datetime.utcnow)
rating = me.IntField()
MongoEngine Query Example¶
>>> from reviews.models import Review
>>> for review in Review.objects.all():
... review.title
PyMongo Model Example¶
>>> from pymongo import Connection
>>> connection = Connection()
>>> my_data = {'rating': 3, 'title': 'I like ice cream'}
>>> connection.reviews.insert(my_data)
>>> your_data = {'rating': 3, 'name': 'You like ice cream'}
>>> connection.reviews.insert(your_data)
PyMongo Query Example¶
[
{'rating': 3,'title': 'I like ice cream'},
{'rating': 3, 'name': 'You like ice cream'}
]
>>> connection = pymongo.Connection()
>>> db = connection.db
>>> for review in db.reviews.find({'rating': 3}):
... review['title']
>>> for review in db.reviews.find(
... {"title": {"$regex": "ice cream"} }
... ):
... review['title']