/**
+ * @author Ed Spencer
+ * @class Ext.data.Errors
+ * @extends Ext.util.MixedCollection
+ *
+ * <p>Wraps a collection of validation error responses and provides convenient functions for
+ * accessing and errors for specific fields.</p>
+ *
+ * <p>Usually this class does not need to be instantiated directly - instances are instead created
+ * automatically when {@link Ext.data.Model#validate validate} on a model instance:</p>
+ *
+<pre><code>
+//validate some existing model instance - in this case it returned 2 failures messages
+var errors = myModel.validate();
+
+errors.isValid(); //false
+
+errors.length; //2
+errors.getByField('name'); // [{field: 'name', error: 'must be present'}]
+errors.getByField('title'); // [{field: 'title', error: 'is too short'}]
+</code></pre>
+ */
+Ext.define('Ext.data.Errors', {
+ extend: 'Ext.util.MixedCollection',
+
+ /**
+ * Returns true if there are no errors in the collection
+ * @return {Boolean}
+ */
+ isValid: function() {
+ return this.length === 0;
+ },
+
+ /**
+ * Returns all of the errors for the given field
+ * @param {String} fieldName The field to get errors for
+ * @return {Array} All errors for the given field
+ */
+ getByField: function(fieldName) {
+ var errors = [],
+ error, field, i;
+
+ for (i = 0; i < this.length; i++) {
+ error = this.items[i];
+
+ if (error.field == fieldName) {
+ errors.push(error);
+ }
+ }
+
+ return errors;
+ }
+});
+