Guest Blog Post: Shipping a populated SQLite DB with PhoneGap

This is my second “Guest Blog Post” for the month. Sorry I’ve been a bit slow on my own content lately! Today’s post comes from Scott Buckel. He and I shared a conversation earlier this month about databases and PhoneGap. PhoneGap makes it pretty darn easy to create and work with a database in your application. What isn’t so trivial is actually shipping a prepopulated database with the app itself. I wasn’t able to help him as much as I’d like - but he worked at it until he came up with a solution. Here is what he discovered. These instructions are very raw, and not optimized.

  1. I used this plugin:
  2. Copy your sqlite db file to /assets folder of PhoneGap.
  3. Then, follow instructions here: to copy the file to native storage. Change this.copy("Databases.db","/data/data/"+pName+"/app_database/");
    1. Instead of Databases.db, use your database filename.
    2. Instead of app_database, use "databases"
    3. You'll probably want to delete the file from /assets, since it is duplicated and no longer needed. My app was double the size it needed to be. </ol>
    4. (Not sure if this step is necessary, I'm getting out of the office for the day). Edit
      1. Lines 176, I edited 1==1 so that if statement is always executed. Line 179 I changed this.setStorage(appPackage, false); to this.setStorage(appPackage, true); </ol>
      2. You can then use the following command to open the DB and use it as any other PhoneGap database
        1. var db = window.sqlitePlugin.openDatabase("[full_database_name_including_extension]", "1.0", "PhoneGap Demo", 200000); </ol> </ol> 10 hours of work later, I have a working database! Feel free to use this information on a blog, I feel it would help a LOT of people out. Step #4 is weird, I'm sure there's a "prettier" way to do it. If used, just give Scott Buckel @ Corporate Zen credit please :).
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Raymond is a developer advocate. He focuses on JavaScript, serverless and enterprise cat demos. If you like this article, please consider visiting my Amazon Wishlist or donating via PayPal to show your support.

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