Initial commit

Chapter03/ch03-19-avoid-keyerrors.py

+
+total_score = 0
+for username in ("jill", "sam", "cathy"):
+    user_doc = dbh.users.find_one({"username":username})
+    total_score += user_doc.get("score", 0)

Chapter03/ch03-20-avoid-keyerrors-2.py

+
+# Email each supplier of this product.
+# Default value is the empty list so no special casing
+# is needed if the suppliers property is not present.
+for supplier in product_doc.get("suppliers", []):
+    email_supplier(supplier)

Chapter03/ch03-21-using-upsert.py

+
+# Using upsert=True
+def edit_or_add_session(description, session_id):
+    dbh.sessions.update({"session_id":session_id},
+        {"$set":{"session_description":description}}, safe=True, upsert=True)

Chapter03/ch03-22-findAndModify.py

+
+# User X adds $20 to his/her account, so we atomically increment
+# account_balance and return the resulting document
+ret = dbh.users.find_and_modify({"username":username},
+    {"$inc":{"account_balance":20}}, safe=True, new=True)
+new_account_balance = ret["account_balance"]

Chapter03/ch03-23-fast-accounting-lookup.py

+
+# Fetch the score for the current week
+import datetime
+now = datetime.datetime.utcnow()
+current_year = now.year
+current_week = now.isocalendar()[1]
+# Default missing keys to a score of zero
+user_doc["scores_weekly"].get("%d-%d" %(current_year, current_week), 0)

Chapter03/ch03-24-fast-accounting-update.py

+
+# Update the score for the current week
+import datetime
+username = "foouser"
+now = datetime.datetime.utcnow()
+current_year = now.year
+current_week = now.isocalendar()[1]
+# Use atomic update modifier to increment by 24
+dbh.users.update({"username":username},
+    {"$inc":{"scores_weekly.%s-%s" %(current_year, current_week):24}},
+    safe=True)

Chapter03/ch03-25-fast-accounting-multiple-time-periods.py

+
+# Update the score for the current week
+import datetime
+username = "foouser"
+now = datetime.datetime.utcnow()
+current_year = now.year
+current_month = new.month
+current_week = now.isocalendar()[1]
+current_day = now.timetuple().tm_yday
+# Use atomic update modifier to increment by 24
+dbh.users.update({"username":username},
+    {"$inc":{
+        "scores_weekly.%s-%s" %(current_year, current_week):24,
+        "scores_daily.%s-%s" %(current_year, current_day):24,
+        "scores_monthly.%s-%s" %(current_year, current_month):24,
+        "score_total":24,
+        }
+    },
+    safe=True)

Chapter04/ch04-1-pylons-pymongo-app-globals.py

+
+from beaker.cache import CacheManager
+from beaker.util import parse_cache_config_options
+from pymongo import Connection
+from pylons import config
+
+class Globals(object):
+    """Globals acts as a container for objects available throughout the
+    life of the application
+
+    """
+
+    def __init__(self, config):
+        """One instance of Globals is created during application
+        initialization and is available during requests via the
+        'app_globals' variable
+
+        """
+        self.mongodb_conn = Connection(config['mongodb.url'])
+        self.mongodb = self.mongodb_conn[config['mongodb.db_name']]
+        self.cache = CacheManager(**parse_cache_config_options(config))

Chapter04/ch04-2-pylons-pymongo-sample-controller.py

+
+import logging
+
+from pylons import app_globals as g, request, response, session, tmpl_context as c, url
+from pylons.controllers.util import abort, redirect
+
+from pylonsfoo.lib.base import BaseController, render
+
+log = logging.getLogger(__name__)
+
+class MongodbController(BaseController):
+
+    def index(self):
+        new_doc = g.mongodb.counters.find_and_modify({"counter_name":"test_counter"},
+            {"$inc":{"counter_value":1}}, new=True, upsert=True , safe=True)
+        return "MongoDB Counter Value: %s" % new_doc["counter_value"]

Chapter04/ch04-3-pyramid-pymongo-sample-view-callable.py

+
+import datetime
+def my_view(request):
+    new_page_hit = {"timestamp":datetime.datetime.utcnow(), "url":request.url}
+    request.db.page_hits.insert(new_page_hit, safe=True)
+    return {"project":"mongofoo"}

Chapter04/ch04-4-django-pymongo-sample-view.py

+
+import datetime
+import string
+import random
+import mimetypes
+import cStringIO as StringIO
+
+from PIL import Image
+from django.http import HttpResponse
+from django.http import HttpResponseRedirect
+from django.shortcuts import render_to_response
+from pymongo.connection import Connection
+from pymongo import DESCENDING
+import gridfs
+
+db = Connection().sms

README.md

+## Example files for the title:  
+  
+# MongoDB and Python, by Niall O'Higgins
+  
+[![MongoDB and Python, by Niall O'Higgins](http://akamaicovers.oreilly.com/images/9781449310363/cat.gif)](https://www.safaribooksonline.com/library/view/title/9781449312817//)
+  
+The following applies to example files from material published by O’Reilly Media, Inc. Content from other publishers may include different rules of usage. Please refer to any additional usage rights explained in the actual example files or refer to the publisher’s website.
+  
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+  
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