Update column type info

lib/datasource.js

@@ -563,6 +563,24 @@ DataSource.prototype.columnName = function (modelName, propertyName) {
     }
 };
 
+/**
+ * Return column metadata for specified modelName and propertyName
+ * @param modelName
+ * @param propertyName
+ * @returns {Object} column metadata
+ */
+DataSource.prototype.columnMetadata = function (modelName, propertyName) {
+    if(!propertyName) {
+        return propertyName;
+    }
+    var property = this.definitions[modelName].properties[propertyName];
+    if(property && property[this.adapter.name]) {
+        return property[this.adapter.name];
+    } else {
+        return null;
+    }
+};
+
 /**
  * Return column names for specified modelName
  * @param modelName

lib/jutil.js

@@ -1,15 +1,25 @@
+var util = require('util');
 /**
  *
  * @param newClass
  * @param baseClass
  */
-exports.inherits = function (newClass, baseClass) {
-    Object.keys(baseClass).forEach(function (classProp) {
-        newClass[classProp] = baseClass[classProp];
-    });
-    Object.keys(baseClass.prototype).forEach(function (instanceProp) {
-        newClass.prototype[instanceProp] = baseClass.prototype[instanceProp];
-    });
+exports.inherits = function (newClass, baseClass, options) {
+    util.inherits(newClass, baseClass);
+
+    options = options || {
+        staticProperties: true,
+        override: false
+    };
+
+    if (options.staticProperties) {
+        Object.keys(baseClass).forEach(function (classProp) {
+            if (classProp !== 'super_' && (!newClass.hasOwnProperty(classProp) || options.override)) {
+                var pd = Object.getOwnPropertyDescriptor(baseClass, classProp);
+                Object.defineProperty(newClass, classProp, pd);
+            }
+        });
+    }
 };
 
 

lib/sql.js

@@ -63,6 +63,16 @@ BaseSQL.prototype.column = function (model, property) {
     return name;
 };
 
+/**
+ * Get the column name for given model property
+ * @param model The model name
+ * @param property The property name
+ * @returns {Object} The column metadata
+ */
+BaseSQL.prototype.columnMetadata = function (model, property) {
+    return this.dataSource(model).columnMetadata(model, property);
+};
+
 /**
  * Get the corresponding property name for a given column name
  * @param model The model name