分期订单

@@ -22,6 +22,9 @@ var repayment = new Repayment({
 
         return ret;
     },
+    onGetSelectableCount: function() {
+        return $(CHECKBOX_SELECTOR).length;
+    },
     onDeselectAll: function() {
         $(CHECKBOX_SELECTOR + ':checked').prop('checked', false);
         return [];
@@ -76,3 +79,7 @@ $(CHECKBOX_SELECTOR + ':checkbox').click(function() {
 
     repayment.update();
 });
+
+
+// 默认选择第一个
+$(CHECKBOX_SELECTOR + ':checkbox:first').click();

@@ -8,6 +8,15 @@ var Repayment = function(options) {
         onDeselectAll: $.noop,
 
         /**
+         * 返回可选择数目
+         *
+         * @returns {number}
+         */
+        onGetSelectableCount: function() {
+            return 0;
+        },
+
+        /**
          * 获取选择
          *
          * @returns {Array}
@@ -116,11 +125,17 @@ Repayment.prototype.getSelection = function() {
     return this.settings.onGetSelection();
 };
 
+/**
+ * 更新组件并计算金额
+ */
 Repayment.prototype.update = function() {
     var values = this.getSelection();
     var $repaymentBottom = $('.repayment-bottom');
     var self = this;
 
+    // 是否选择全部
+    var totalCheck = this.settings.onGetSelectableCount() === values.length;
+
     this.total = 0;
     this.fee = 0;
 
@@ -138,6 +153,8 @@ Repayment.prototype.update = function() {
         $repaymentBottom.slideDown();
     }
 
+    $('#repayment-total').prop('checked', totalCheck).data('checked', totalCheck);
+
     this.setTotal(this.total);
     this.setFee(this.fee);