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Awesome Open Source

WebSQLDump Logo

An ultra-light JS library for exporting data out of WebSQL

Usage

// Export whole db to console
websqldump.export({
  database: 'NorthwindLite'
});
// Export database data and POST to remote server
websqldump.export({
  database: 'NorthwindLite',
  dataonly: true,
  linebreaks: true,
  success: function(sql) {
    $.ajax({type: 'POST', url: 'http://myserver.com/sync', data: {clientId: '4EAB0319', localdb: sql});
  }
});
// Export single table (schema only) to alert window, ignore errors
websqldump.export({
  database: 'NorthwindLite',
  table: 'Orders',
  schemaonly: true,
  linebreaks: true,
  success: function(sql) {
    alert(sql); 
  },
  error: function(msg) {
    // do nothing
  }
});

Export options

  • database: Required. The name of the database to export
  • table: The table to export, if undefined then all tables are exported (defaults to undefined)
  • version: The version of the web database (defaults to '1.0')
  • dbsize: The size of the database in bytes (defaults to 5 * 1024 * 1024 - ie 5MB)
  • linebreaks: Set to true to add line-breaks (defaults to false)
  • schemaonly: Set to true to get the schema only (defaults to false)
  • dataonly: Set to true to get the data only (defaults to false)
  • success: Callback with 1 parameter (sql output). If not available will output to console.
  • error: Callback with 1 parameter (err message). If not available on error will throw an exception.

Dependencies

No JavaScript library dependencies. Requires browser with HTML5 WebSql support (such as WebKit browsers like chrome and safari) or equivalent openDatabase polyfill.

Demo

The following page contains a test harness:

http://sdesalas.github.io/websqldump

You will need to create some tables and enter data in order for the demo to become meaningful.


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