| 提交 | 用户 | 时间 | ||
| 759b1c | 1 | <template> |
| H | 2 | <div class="app-container"> |
| 3 | <el-form | |
| 4 | ref="formRef" | |
| 5 | :model="formData" | |
| 6 | :rules="formRules" | |
| 7 | label-width="100px" | |
| 8 | v-loading="formLoading" | |
| 9 | > | |
| 10 | <el-form-item label="名字" prop="name"> | |
| 11 | <el-input v-model="formData.name" placeholder="请输入名字" /> | |
| 12 | </el-form-item> | |
| 13 | <el-form-item label="班主任" prop="teacher"> | |
| 14 | <el-input v-model="formData.teacher" placeholder="请输入班主任" /> | |
| 15 | </el-form-item> | |
| 16 | </el-form> | |
| 17 | </div> | |
| 18 | </template> | |
| 19 | ||
| 20 | <script> | |
| 21 | import * as Demo03StudentApi from '@/api/infra/demo03-inner'; | |
| 22 | export default { | |
| 23 | name: "Demo03GradeForm", | |
| 24 | components: { | |
| 25 | }, | |
| 26 | props:[ | |
| 27 | 'studentId' | |
| 28 | ],// 学生编号（主表的关联字段） | |
| 29 | data() { | |
| 30 | return { | |
| 31 | // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用 | |
| 32 | formLoading: false, | |
| 33 | // 表单参数 | |
| 34 | formData: [], | |
| 35 | // 表单校验 | |
| 36 | formRules: { | |
| 37 | studentId: [{ required: true, message: "学生编号不能为空", trigger: "blur" }], | |
| 38 | name: [{ required: true, message: "名字不能为空", trigger: "blur" }], | |
| 39 | teacher: [{ required: true, message: "班主任不能为空", trigger: "blur" }], | |
| 40 | }, | |
| 41 | }; | |
| 42 | }, | |
| 43 | watch:{/** 监听主表的关联字段的变化，加载对应的子表数据 */ | |
| 44 | studentId:{ | |
| 45 | handler(val) { | |
| 46 | // 1. 重置表单 | |
| 47 | this.formData = { | |
| 48 | id: undefined, | |
| 49 | studentId: undefined, | |
| 50 | name: undefined, | |
| 51 | teacher: undefined, | |
| 52 | } | |
| 53 | // 2. val 非空，则加载数据 | |
| 54 | if (!val) { | |
| 55 | return; | |
| 56 | } | |
| 57 | try { | |
| 58 | this.formLoading = true; | |
| 59 | // 这里还是需要获取一下 this 的不然取不到 formData | |
| 60 | const that = this; | |
| 61 | Demo03StudentApi.getDemo03GradeByStudentId(val).then(function (res){ | |
| 62 | const data = res.data; | |
| 63 | if (!data) { | |
| 64 | return | |
| 65 | } | |
| 66 | that.formData = data; | |
| 67 | }) | |
| 68 | } finally { | |
| 69 | this.formLoading = false; | |
| 70 | } | |
| 71 | }, | |
| 72 | immediate: true | |
| 73 | } | |
| 74 | }, | |
| 75 | methods: { | |
| 76 | /** 表单校验 */ | |
| 77 | validate(){ | |
| 78 | return this.$refs["formRef"].validate(); | |
| 79 | }, | |
| 80 | /** 表单值 */ | |
| 81 | getData(){ | |
| 82 | return this.formData; | |
| 83 | } | |
| 84 | } | |
| 85 | }; | |
| 86 | </script> | |
