skeleton for query-generator

lib/connectors/query-generator.js

+var QueryGenerator = module.exports = {
+  /*
+    Returns a query for creating a table.
+    Attributes should have the format: {attributeName: type, attr2: type2} --> {title: 'VARCHAR(255)'}
+  */
+  createTableQuery: function(tableName, attributes, options) {
+    throw new Error('Define the method createTableQuery!')
+  },
+
+  /*
+    Returns a query for dropping a table.
+  */
+  dropTableQuery: function(tableName, options) {
+    throw new Error('Define the method dropTableQuery!')
+  },
+
+  /*
+    Returns a query for selecting elements in the table <tableName>.
+    Options:
+      - attributes -> An array of attributes (e.g. ['name', 'birthday']). Default: *
+      - where -> A hash with conditions (e.g. {name: 'foo'})
+                 OR an ID as integer
+                 OR a string with conditions (e.g. 'name="foo"').
+                 If you use a string, you have to escape it on your own.
+      - order -> e.g. 'id DESC'
+      - group
+      - limit -> The maximum count you want to get.
+      - offset -> An offset value to start from. Only useable with limit!
+  */
+  selectQuery: function(tableName, options) {
+    throw new Error('Define the method selectQuery!')
+  },
+
+  /*
+    Returns a query for counting elements in the table <tableName>.
+    Options are the very same as in selectQuery.
+  */
+  countQuery: function(tableName, options) {
+    throw new Error('Define the method countQuery!')
+  },
+
+  /*
+    Returns a query for getting the max value of a field in the table <tableName>.
+    Options are the very same as in selectQuery.
+  */
+  maxQuery: function(tableName, field, options) {
+    throw new Error('Define the method maxQuery!')
+  },
+
+  /*
+    Returns a query for getting the min value of a field in the table <tableName>.
+    Options are the very same as in selectQuery.
+  */
+  minQuery: function(tableName, field, options) {
+    throw new Error('Define the method minQuery!')
+  },
+
+  /*
+    Returns an insert into command. Parameters: table name + hash of attribute-value-pairs.
+  */
+  insertQuery: function(tableName, attrValueHash) {
+    throw new Error('Define the method insertQuery!')
+  },
+
+  /*
+    Returns an update query.
+    Parameters:
+      - tableName -> Name of the table
+      - values -> A hash with attribute-value-pairs
+      - where -> A hash with conditions (e.g. {name: 'foo'})
+                 OR an ID as integer
+                 OR a string with conditions (e.g. 'name="foo"').
+                 If you use a string, you have to escape it on your own.
+  */
+  updateQuery: function(tableName, values, where) {
+    throw new Error('Define the method updateQuery!')
+  },
+
+  /*
+    Returns a deletion query.
+    Parameters:
+      - tableName -> Name of the table
+      - where -> A hash with conditions (e.g. {name: 'foo'})
+                 OR an ID as integer
+                 OR a string with conditions (e.g. 'name="foo"').
+                 If you use a string, you have to escape it on your own.
+    Options:
+      - limit -> Maximaum count of lines to delete
+  */
+  deleteQuery: function(tableName, where, options) {
+    throw new Error('Define the method deleteQuery!')
+  },
+
+  /*
+    Takes something and transforms it into values of a where condition.
+  */
+  getWhereConditions: function(smth) {
+    throw new Error('Define the method getWhereConditions!')
+  },
+
+  /*
+    Takes a hash and transforms it into a mysql where condition: {key: value, key2: value2} ==> key=value AND key2=value2
+    The values are transformed by the relevant datatype.
+  */
+  hashToWhereConditions: function(hash) {
+    throw new Error('Define the method hashToWhereConditions!')
+  }
+}

lib/sequelize.js

@@ -19,7 +19,7 @@ var Sequelize = module.exports = function(database, username, password, options)
     port    : options.port || 3306
   }
 
-  var ConnectorManager = require("./connectors/" + (options.connector || 'mysql') + "/connector-manager")
+  var ConnectorManager = require("./connectors/" + (this.options.connector || 'mysql') + "/connector-manager")
 
   this.modelManager = new ModelManager(this)
   this.connectorManager = new ConnectorManager(this.config)