Angular WebSql Service

Helps you generate websql simple queries and run them without writing any sql code.

Setup

1. bower install angular-websql
2. Include the angular-websql.min.js and angular itself.
3. Add angular-websql as a module dependency to your app.

Usage

1- Add $webSql provider to a controller.
2- Open a database. See method.
3- Use returned database object's methods.

Methods

Open Database

$webSql.openDatabase(dbName, version, desc, size)

Example:

$scope.db = $webSql.openDatabase('mydb', '1.0', 'Test DB', 2 * 1024 * 1024); 

1- Database name
2- Version number
3- Text description
4- Size of database

Returns

An object, containing database operation methods, is returned with openDatabase method. All methods return a promise which takes query result object as parameter. These methods are:

• createTable()
• dropTable()
• update()
• delete()
• select()
• selectAll()

Database Methods

Create Table

createTable(string tableName, object fields)

Example:

createTable('user', {
  "id":{
    "type": "INTEGER",
    "null": "NOT NULL", // default is "NULL" (if not defined)
    "primary": true, // primary
    "auto_increment": true // auto increment
  },
  "created":{
    "type": "TIMESTAMP",
    "null": "NOT NULL",
    "default": "CURRENT_TIMESTAMP" // default value
  },
  "username":{
    "type": "TEXT",
    "null": "NOT NULL"
  },
  "password": {
    "type": "TEXT",
    "null": "NOT NULL"
  },
  "age": {
    "type": "INTEGER"
  }
})

Drop Table

dropTable(string tableName)

Insert

insert(string tableName, object fields)

Example:

$scope.db.insert('user', {"username": 'pc', "password": '1234', 'age': 22}).then(function(results) {
  console.log(results.insertId);
})

INSERT INTO user (username, password, age) VALUES('pc', '1234', 22)

Update

update(string tableName, object fields)

Examples:

$scope.db.update("user", {"username": 'paulo.caldeira'}, {
  'id': 1
})

UPDATE user SET username='paulo.caldeira' WHERE id=1

$scope.db.update("user", {"age": 23}, {
  "username": {
    "operator":'LIKE',
    "value":'paulo.*',
    "union":'AND' // condition suffix
  },
  "age": 22
})

UPDATE user SET age=23 WHERE username LIKE 'paulo.*' AND age=22

Delete

delete(string tableName, object where)

$scope.db.del("user", {"id": 1})

DELETE user WHERE id=1

Select

select(string tableName, object where)

$scope.db.select("user", {
  "age": {
    "value":'IS NULL',
    "union":'AND'
  },
  "username":'IS NOT NULL'
}).then(function(results) {
  $scope.users = [];
  for(i=0; i < results.rows.length; i++){
    $scope.users.push(results.rows.item(i));
  }
})

SELECT * FROM user WHERE age IS NULL AND username IS NOT NULL

Select All

selectAll(string tableName)

$scope.db.selectAll("user").then(function(results) {
  $scope.users = [];
  for(var i=0; i < results.rows.length; i++){
    $scope.users.push(results.rows.item(i));
  }
})

SELECT * FROM user

Operators

Your can use common operators like =, >=, <= and LIKE. You can use also IS NULL and NOT NULL as condition values. Changelog

v1.0.1

• escape single quote or double quote value(s)
• changing callback to angular promise