添加获取openid的功能

app/controllers/wechats_controller.rb

@@ -171,6 +171,18 @@ class WechatsController < ActionController::Base
     end
   end
 
+
+  def get_open_id
+    begin
+      raise "非法操作, code不存在" unless params[:code]
+      openid = get_openid(params[:code])
+      raise "无法获取到openid" unless openid
+      render :text => {status:0, openid: openid}.to_json
+    rescue Exception=>e
+      render :text => {status: -1, msg: e.message}.to_json
+    end
+  end
+
   def bind
     begin
        raise "非法操作, code不存在" unless params[:code]

config/menu.yml

@@ -2,7 +2,7 @@ button:
  -
   type: "view"
   name: "最新动态"
-  url: "http://wechat.trustie.net/assets/wechat/issue.html"
+  url: "https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxc09454f171153c2d&redirect_uri=http://wechat.trustie.net/assets/wechat/issue.html&response_type=code&scope=snsapi_base&state=123#wechat_redirect"
  -
   type: "click"
   name: "意见返馈"

config/routes.rb

@@ -1165,6 +1165,7 @@ RedmineApp::Application.routes.draw do
     collection do
       get :login
       post :bind
+      get :get_open_id
     end
   end
 

public/assets/wechat/issue.html

@@ -47,6 +47,7 @@
 
 <script src="/javascripts/jquery-1.3.2.js"></script>
 <script src="/javascripts/baiduTemplate.js"></script>
+<script src="/javascripts/wechat/auth.js"></script>
 <script src="/javascripts/wechat/wechat-dev.js"></script>
 </body>
 </html>

public/javascripts/wechat/auth.js

@@ -0,0 +1,29 @@
+$(function(){
+    //获取url中的参数
+    function getUrlParam(name) {
+        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)"); //构造一个含有目标参数的正则表达式对象
+        var r = window.location.search.substr(1).match(reg);  //匹配目标参数
+        if (r != null) return unescape(r[2]); return null; //返回参数值
+    }
+
+    var g_openid = "";
+
+    window.getOpenId = function(cb){
+        if (g_openid.length>0){
+            cb(g_openid);
+        }
+        var code = getUrlParam("code");
+        $.ajax({
+            url: '/wechat/get_open_id?code='+code,
+            type: 'get',
+            dataType: 'json',
+            success: function(data){
+                g_openid = data.openid;
+                cb(g_openid);
+            },
+            error: function(xhr,err){
+                alert("认证失败: "+err);
+            }
+        });
+    }
+});

public/javascripts/wechat/wechat-dev.js

@@ -11,23 +11,26 @@ $(document).ready(function(){
     var apiUrl = '/api/v1/'
     var setTemplate = function(data){
         console.log(data);
-
-
         var html=bt('t:result-list',{issues: data});
         $('#container').prepend(html);
     }
 
     var loadDataFromServer = function(id){
-        $.ajax({
+        getOpenId(function(openid){
-            url: apiUrl + 'issues/' + id,
+            alert(openid);
-            dataType: 'json',
+            $.ajax({
-            success: function(data){
+                url: apiUrl + 'issues/' + id + "?openid="+openid,
-                setTemplate(data.data);
+                dataType: 'json',
-            },
+                success: function(data){
-            error: function(xhr,status,err){
+                    setTemplate(data.data);
-                console.log(err);
+                },
-            }
+                error: function(xhr,status,err){
+                    console.log(err);
+                }
+            });
         })
+
+
     };