fix: srule 修复 that 未定义并完善排班规则交互

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/views/mtm/srule.vue

@@ -35,8 +35,9 @@
                 </div>
                 <div style="margin-top: 6px" v-if="form.rule_display.length > 0">
                     <span v-for="(item, index) in form.rule_display" :key="index">
-                        {{ item }} ->
+                        {{ item }}<span v-if="index < form.rule_display.length - 1"> -> </span>
                     </span>
+                    <el-button link size="small" type="danger" style="margin-left: 8px" @click="removeLast">撤销</el-button>
                 </div>
             </el-form>
             <template #footer>
@@ -84,17 +85,29 @@ export default {
             this.form.rule.push(item.id);
             this.form.rule_display.push(item.name);
         },
+        removeLast() {
+            this.form.rule.pop();
+            this.form.rule_display.pop();
+        },
         save() {
+            if (!this.form.belong_dept) {
+                this.$message.warning("请选择所属部门");
+                return;
+            }
+            if (this.form.rule.length === 0) {
+                this.$message.warning("请至少添加一个班组");
+                return;
+            }
             this.$API.mtm.srule.create.req(this.form).then(res => {
                 this.$refs.table.refresh();
                 this.dialogVisible = false;
-                that.$message.success("操作成功");
+                this.$message.success("操作成功");
             })
         },
         table_del(row, index) {
             this.$API.mtm.srule.delete.req(row.id).then(res => {
                 this.$refs.table.refresh();
-                that.$message.success("操作成功");
+                this.$message.success("操作成功");
             })
         }
     }