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Summoning the keyboard: To open the keyboard, tap in any editable text area. Dismissing the keyboard: There is no standard way to dismiss the keyboard, but most programs offer a Done button that indicates you re finished typing. In Safari, press Go rather than Done.

Figure 11-1. The Python-created database in Futon Next, let s take things a step further by creating a CouchDB document using Couchdbkit. First, let s move from entering code at the interactive prompt to using source code files. Create a directory in your home folder called python_couch. Now use your favorite text editor to create a new file in this folder, named Bookmark.py. Add the code in Listing 11-2 to Bookmark.py. Listing 11-2. Bookmark.py from couchdbkit.schema import Document from couchdbkit.schema.properties import * class Bookmark(Document): url = StringProperty() title = StringProperty() date_added = DateTimeProperty()

var cat = new Cat(); cat.speak();

Once you get the hang of the keyboard, the iPod offers several other ways to make typing easier. This section describes a few of these handy iPod typing tricks.

Now, try running this source code by issuing the following command: python Bookmark.py If you don t see any error messages, your class was evaluated successfully. Now let s create some code to utilize this class to create and save CouchDB documents. Create a new file in the python_couch folder. Name this one BookmarksApp.py. This file should contain the code in Listing 11-3. Listing 11-3. BookmarksApp.py from from from from datetime import datetime Bookmark import Bookmark couchdbkit.client import Server couchdbkit.session import create_session

When you want to type a contraction like can t or shouldn t, don t bother putting in the apostrophe. The iPod is smart enough to guess that cant is can t. (Of course, if you re typing about the British Thieves language, make sure to tap the word itself to decline the change from the noun to the contraction.) When you re typing in a word like we ll, where the uncontracted well is a common word, add an extra l. The iPod corrects welll to we ll and shelll to she ll.

Second, all references to objects and arrays added to the prototype object are shared between all the instances.

server = Server() db = create_session(server, "python_test") bmark = Bookmark( url="http://couchdb.apache.org", title="Official Apache CouchDB project website", date_added=datetime.utcnow() ) print('Saving CouchDB document') db(bmark).save() print('Document Saved.') Now run this source code by issuing the following command: python BookmarksApp.py You should see the messages Saving CouchDB document and Document Saved but once again, let s not take the application s word for it. If you take a quick look in Futon, you can see that your python_test database now has a document, with the values from the previous code stored. If you run the code again, you ll see that a second document has been created. It s unlikely you d want to store the data to be added to CouchDB in your source code, of course. You d probably want to allow the user to enter the URL and title of the bookmark. Let s make a few simple changes to the application to allow for user input. Modify the BookmarksApp.py file, making the changes highlighted in Listing 11-4. Listing 11-4. Updated Version of BookmarksApp.py from from from from datetime import datetime Bookmark import Bookmark couchdbkit.client import Server couchdbkit.session import create_session

s Other contraction tricks include itsa, which gets corrected to it s, and weree, which gets corrected to Tip

Never store objects or arrays in the prototype object, unless you want to share them across all instances. Instead, store references to objects or arrays in the constructor. This way, each instance has its own copy of the object.

server = Server() db = create_session(server, "python_test") the_url = raw_input('Enter website URL: ')