removed disable foreign key constraint query

lib/dialects/abstract/query-generator.js

@@ -261,27 +261,13 @@ module.exports = (function() {
     },
 
     /*
-      Globally enable foreign key constraints
-    */
-    enableForeignKeyConstraintsQuery: function() {
-      throwMethodUndefined('enableForeignKeyConstraintsQuery')
-    },
-
-    /*
-      Globally disable foreign key constraints
-    */
-    disableForeignKeyConstraintsQuery: function() {
-      throwMethodUndefined('disableForeignKeyConstraintsQuery')
-    },
-
-    /*
       Quote an object based on its type. This is a more general version of quoteIdentifiers
       Strings: should proxy to quoteIdentifiers
       Arrays: First argument should be qouted, second argument should be append without quoting
       Objects:
         * If raw is set, that value should be returned verbatim, without quoting
         * If fn is set, the string should start with the value of fn, starting paren, followed by
-          the values of cols (which is assumed to be an array), quoted and joined with ', ', 
+          the values of cols (which is assumed to be an array), quoted and joined with ', ',
           unless they are themselves objects
         * If direction is set, should be prepended
 
@@ -366,8 +352,8 @@ module.exports = (function() {
       if (value instanceof Utils.fn || value instanceof Utils.col) {
         return value.toString(this)
       } else {
-        return SqlString.escape(value, false, null, this.dialect, field)  
-      }       
+        return SqlString.escape(value, false, null, this.dialect, field)
+      }
     }
 
   }

lib/dialects/mysql/query-generator.js

@@ -589,16 +589,6 @@ module.exports = (function() {
       return fields
     },
 
-    enableForeignKeyConstraintsQuery: function() {
-      var sql = "SET FOREIGN_KEY_CHECKS = 1;"
-      return Utils._.template(sql, {})
-    },
-
-    disableForeignKeyConstraintsQuery: function() {
-      var sql = "SET FOREIGN_KEY_CHECKS = 0;"
-      return Utils._.template(sql, {})
-    },
-
     quoteIdentifier: function(identifier, force) {
       return Utils.addTicks(identifier, "`")
     },

lib/dialects/postgres/query-generator.js

@@ -714,14 +714,6 @@ module.exports = (function() {
       return fields
     },
 
-    enableForeignKeyConstraintsQuery: function() {
-      return false // not supported by dialect
-    },
-
-    disableForeignKeyConstraintsQuery: function() {
-      return false // not supported by dialect
-    },
-
     createTrigger: function(tableName, triggerName, eventType, fireOnSpec, functionName, functionParams, optionsArray) {
       var sql = [
           'CREATE <%= constraintVal %>TRIGGER <%= triggerName %>'

lib/dialects/sqlite/query-generator.js

@@ -179,7 +179,7 @@ module.exports = (function() {
               , attrLeft        = ((primaryKeysLeft.length !== 1) ? 'id' : primaryKeysLeft[0])
               , tableRight      = ((include.association.associationType === 'BelongsTo') ? tableName : include.as)
               , attrRight       = include.association.identifier
-              
+
             joinQuery += " LEFT OUTER JOIN " + this.quoteIdentifier(table) + " AS " + this.quoteIdentifier(as) + " ON " + this.quoteIdentifier(tableLeft) + "." + this.quoteIdentifier(attrLeft) + " = " + this.quoteIdentifier(tableRight) + "." + this.quoteIdentifier(attrRight)
           } else {
             var primaryKeysSource = Object.keys(include.association.source.primaryKeys)
@@ -377,16 +377,6 @@ module.exports = (function() {
       return fields
     },
 
-    enableForeignKeyConstraintsQuery: function() {
-      var sql = "PRAGMA foreign_keys = ON;"
-      return Utils._.template(sql, {})
-    },
-
-    disableForeignKeyConstraintsQuery: function() {
-      var sql = "PRAGMA foreign_keys = OFF;"
-      return Utils._.template(sql, {})
-    },
-
     hashToWhereConditions: function(hash) {
       for (var key in hash) {
         if (hash.hasOwnProperty(key)) {

lib/query-interface.js

@@ -434,7 +434,6 @@ module.exports = (function() {
     return new Utils.CustomEventEmitter(function(emitter) {
       var chainer = new Utils.QueryChainer()
 
-      chainer.add(self, 'enableForeignKeyConstraints', [])
       chainer.add(self, 'queryAndEmit', [[sql, dao], 'delete'])
 
       chainer.runSerially()
@@ -461,7 +460,6 @@ module.exports = (function() {
     return new Utils.CustomEventEmitter(function(emitter) {
       var chainer = new Utils.QueryChainer()
 
-      chainer.add(self, 'enableForeignKeyConstraints', [])
       chainer.add(self, 'queryAndEmit', [sql, 'bulkUpdate'])
 
       return chainer.runSerially()
@@ -547,7 +545,6 @@ module.exports = (function() {
 
         var chainer = new Utils.QueryChainer()
 
-        chainer.add(self, 'enableForeignKeyConstraints', [])
         chainer.add(self, 'queryAndEmit', [[sql, dao], 'delete'])
 
         chainer.runSerially()
@@ -578,7 +575,6 @@ module.exports = (function() {
     return new Utils.CustomEventEmitter(function(emitter) {
       var chainer = new Utils.QueryChainer()
 
-      chainer.add(self, 'enableForeignKeyConstraints', [])
       chainer.add(self, 'queryAndEmit', [sql, 'bulkDelete', options])
 
       chainer.runSerially()
@@ -660,30 +656,6 @@ module.exports = (function() {
     }).run()
   }
 
-  QueryInterface.prototype.enableForeignKeyConstraints = function() {
-    var sql = this.QueryGenerator.enableForeignKeyConstraintsQuery()
-    if(sql) {
-      return queryAndEmit.call(this, sql, 'enableForeignKeyConstraints')
-    } else {
-      return new Utils.CustomEventEmitter(function(emitter) {
-        this.emit('enableForeignKeyConstraints', null)
-        emitter.emit('success')
-      }).run()
-    }
-  }
-
-  QueryInterface.prototype.disableForeignKeyConstraints = function() {
-    var sql = this.QueryGenerator.disableForeignKeyConstraintsQuery()
-    if(sql){
-      return queryAndEmit.call(this, sql, 'disableForeignKeyConstraints')
-    } else {
-      return new Utils.CustomEventEmitter(function(emitter) {
-        this.emit('disableForeignKeyConstraints', null)
-        emitter.emit('success')
-      }).run()
-    }
-  }
-
   QueryInterface.prototype.createTrigger = function(tableName, triggerName, timingType, fireOnArray,
       functionName, functionParams, optionsArray) {
     var  sql = this.QueryGenerator.createTrigger(tableName, triggerName, timingType, fireOnArray, functionName