moved count query to queryinterface

lib/model-factory.js

@@ -68,14 +68,7 @@ module.exports = (function() {
   }
 
   ModelFactory.prototype.count = function(options) {
-    var self = this
-
-    var emitter = new Utils.CustomEventEmitter(function() {
-      query.call(self, self.QueryGenerator.countQuery(self.tableName, options), self, {plain: true}).success(function(obj) {
-        emitter.emit('success', obj['count(*)'])
-      })
-    })
-    return emitter.run()
+    return this.QueryInterface.count(this, this.tableName, options)
   }
 
   ModelFactory.prototype.max = function(field, options) {

lib/query-interface.js

@@ -58,6 +58,35 @@ module.exports = (function() {
     return query.call(this, this.QueryGenerator.selectQuery(tableName, options), factory)
   }
 
+  QueryInterface.prototype.count = function(factory, tableName, options) {
+    var self        = this
+      , countOption = "count(*) as count"
+
+    options = options || {}
+    options.attributes = options.attributes || []
+    options.attributes.push('count(*) as count')
+
+    return new Utils.CustomEventEmitter(function(emitter) {
+      var sql = self.QueryGenerator.selectQuery(tableName, options).replace('`' + countOption + '`', countOption)
+
+      query.call(self, sql, factory, { plain: true }).success(function(data) {
+        emitter.emit('success', data.count)
+      }).error(function(err) {
+        emitter.emit('failure', err)
+      })
+    }).run()
+
+
+    var self = this
+
+    var emitter = new Utils.CustomEventEmitter(function() {
+      query.call(self, self.QueryGenerator.countQuery(self.tableName, options), self, {plain: true}).success(function(obj) {
+        emitter.emit('success', obj['count(*)'])
+      })
+    })
+    return emitter.run()
+  }
+
   // private
 
   var query = function() {