refactored error throw in query-generator super class

lib/connectors/query-generator.js

@@ -5,14 +5,14 @@ module.exports = (function() {
       Attributes should have the format: {attributeName: type, attr2: type2} --> {title: 'VARCHAR(255)'}
     */
     createTableQuery: function(tableName, attributes, options) {
-      throw new Error('Define the method createTableQuery!')
+      throwMethodUndefined.call('createTableQuery')
     },
 
     /*
       Returns a query for dropping a table.
     */
     dropTableQuery: function(tableName, options) {
-      throw new Error('Define the method dropTableQuery!')
+      throwMethodUndefined.call('dropTableQuery')
     },
 
     /*
@@ -22,7 +22,7 @@ module.exports = (function() {
         - futureTableName: Name of the table after execution.
     */
     renameTableQuery: function(originalTableName, futureTableName) {
-      throw new Error('Define the method renameQuery!')
+      throwMethodUndefined.call('renameTableQuery')
     },
 
     /*
@@ -37,7 +37,7 @@ module.exports = (function() {
             - allowNull: Boolean
     */
     addColumnQuery: function(tableName, attributes) {
-      throw new Error('Define the method addColumnQuery!')
+      throwMethodUndefined.call('addColumnQuery')
     },
 
     /*
@@ -47,7 +47,7 @@ module.exports = (function() {
         - attributeName: Name of the obsolete attribute.
     */
     removeColumnQuery: function(tableName, attributeName) {
-      throw new Error('Define the method removeColumnQuery!')
+      throwMethodUndefined.call('removeColumnQuery')
     },
 
     /*
@@ -62,7 +62,7 @@ module.exports = (function() {
             - allowNull: Boolean
     */
     changeColumnQuery: function(tableName, attribute) {
-      throw new Error('Define the method modifyColumnQuery!')
+      throwMethodUndefined.call('changeColumnQuery')
     },
 
     /*
@@ -73,7 +73,7 @@ module.exports = (function() {
         - attrNameAfter: The name of the attribute, after renaming.
     */
     renameColumnQuery: function(tableName, attrNameBefore, attrNameAfter) {
-      throw new Error('Define the method renameColumnQuery!')
+      throwMethodUndefined.call('renameColumnQuery')
     },
 
     /*
@@ -90,14 +90,14 @@ module.exports = (function() {
         - offset -> An offset value to start from. Only useable with limit!
     */
     selectQuery: function(tableName, options) {
-      throw new Error('Define the method selectQuery!')
+      throwMethodUndefined.call('selectQuery')
     },
 
     /*
       Returns an insert into command. Parameters: table name + hash of attribute-value-pairs.
     */
     insertQuery: function(tableName, attrValueHash) {
-      throw new Error('Define the method insertQuery!')
+      throwMethodUndefined.call('insertQuery')
     },
 
     /*
@@ -111,7 +111,7 @@ module.exports = (function() {
                    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!')
+      throwMethodUndefined.call('updateQuery')
     },
 
     /*
@@ -126,14 +126,41 @@ module.exports = (function() {
         - limit -> Maximaum count of lines to delete
     */
     deleteQuery: function(tableName, where, options) {
-      throw new Error('Define the method deleteQuery!')
+      throwMethodUndefined.call('deleteQuery')
+    },
+
+    /*
+      Returns an add index query.
+      Parameters:
+        - tableName -> Name of an existing table.
+        - attributes:
+            An array of attributes as string or as hash.
+            If the attribute is a hash, it must have the following content:
+              - attribute: The name of the attribute/column
+              - length: An integer. Optional
+              - order: 'ASC' or 'DESC'. Optional
+        - options:
+          - indicesType: UNIQUE|FULLTEXT|SPATIAL
+          - indexName: The name of the index. Default is <tableName>_<attrName1>_<attrName2>
+          - parser
+    */
+    addIndexQuery: function(tableName, attributes, options) {
+      throwMethodUndefined.call('addIndexQuery')
+    },
+
+    showIndexQuery: function(tableName, options) {
+      throwMethodUndefined.call('showIndexQuery')
+    },
+
+    removeIndexQuery: function(tableName, options) {
+      throwMethodUndefined.call('removeIndexQuery')
     },
 
     /*
       Takes something and transforms it into values of a where condition.
     */
     getWhereConditions: function(smth) {
-      throw new Error('Define the method getWhereConditions!')
+      throwMethodUndefined.call('getWhereConditions')
     },
 
     /*
@@ -141,10 +168,14 @@ module.exports = (function() {
       The values are transformed by the relevant datatype.
     */
     hashToWhereConditions: function(hash) {
-      throw new Error('Define the method hashToWhereConditions!')
+      throwMethodUndefined.call('hashToWhereConditions')
     }
   }
 
+  var throwMethodUndefined = function(methodName) {
+    throw new Error('The method "' + methodName + '" was not defined!')
+  }
+
   return QueryGenerator
 })()