fix[complex-table]: double-clicking the Confirm button triggers the request twice

src/views/table/complex-table.vue

@@ -128,7 +128,7 @@
         <el-button @click="dialogFormVisible = false">
           Cancel
         </el-button>
-        <el-button type="primary" @click="dialogStatus==='create'?createData():updateData()">
+        <el-button :loading="confirmLoading" type="primary" @click="dialogStatus==='create'?createData():updateData()">
           Confirm
         </el-button>
       </div>
@@ -223,7 +223,8 @@ export default {
         timestamp: [{ type: 'date', required: true, message: 'timestamp is required', trigger: 'change' }],
         title: [{ required: true, message: 'title is required', trigger: 'blur' }]
       },
-      downloadLoading: false
+      downloadLoading: false,
+      confirmLoading: false
     }
   },
   created() {
@@ -282,6 +283,7 @@ export default {
       this.resetTemp()
       this.dialogStatus = 'create'
       this.dialogFormVisible = true
+      this.confirmLoading = false
       this.$nextTick(() => {
         this.$refs['dataForm'].clearValidate()
       })
@@ -289,6 +291,7 @@ export default {
     createData() {
       this.$refs['dataForm'].validate((valid) => {
         if (valid) {
+          this.confirmLoading = true
           this.temp.id = parseInt(Math.random() * 100) + 1024 // mock a id
           this.temp.author = 'vue-element-admin'
           createArticle(this.temp).then(() => {
@@ -309,6 +312,7 @@ export default {
       this.temp.timestamp = new Date(this.temp.timestamp)
       this.dialogStatus = 'update'
       this.dialogFormVisible = true
+      this.confirmLoading = false
       this.$nextTick(() => {
         this.$refs['dataForm'].clearValidate()
       })
@@ -316,6 +320,7 @@ export default {
     updateData() {
       this.$refs['dataForm'].validate((valid) => {
         if (valid) {
+          this.confirmLoading = true
           const tempData = Object.assign({}, this.temp)
           tempData.timestamp = +new Date(tempData.timestamp) // change Thu Nov 30 2017 16:41:05 GMT+0800 (CST) to 1512031311464
           updateArticle(tempData).then(() => {