表单提交组件的抽离

src/views/components/FieldOptions/index.vue

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+<template>
+  <el-form ref="form" :model="value" :rules="rules" label-width="100px">
+    <el-row>
+      <el-col :span="24">
+        <el-form-item label="所属领域:" required>
+          <el-row type="flex" justify="space-between">
+            <el-col :span="6">
+              <el-form-item prop="industrys">
+                <el-select
+                  v-model="fields[0]"
+                  value-key="id"
+                  placeholder="请选择"
+                  @change="levelIChange"
+                >
+                  <el-option
+                    v-for="item in levelI"
+                    :key="item.id"
+                    :label="item.name"
+                    :value="item"
+                  >
+                  </el-option>
+                </el-select>
+              </el-form-item>
+            </el-col>
+            <el-col :span="6">
+              <el-select
+                v-model="fields[1]"
+                value-key="id"
+                placeholder="请选择"
+                @change="levelIIChange"
+              >
+                <el-option
+                  v-for="item in levelII"
+                  :key="item.id"
+                  :label="item.name"
+                  :value="item"
+                >
+                </el-option>
+              </el-select>
+            </el-col>
+            <el-col :span="6">
+              <el-select
+                v-model="fields[2]"
+                value-key="id"
+                placeholder="请选择"
+              >
+                <el-option
+                  v-for="item in levelIII"
+                  :key="item.id"
+                  :label="item.name"
+                  :value="item.id"
+                >
+                </el-option>
+              </el-select>
+            </el-col>
+            <el-col :span="3">
+              <el-button type="primary" @click="fieldAdd">添加</el-button>
+            </el-col>
+          </el-row>
+          <div class="e_tag">
+            <el-tag
+              v-for="(tag, index) in industrysTags"
+              :key="index"
+              closable
+              @close="handleFieldClose(index)"
+            >
+              <span v-for="(item, i) in tag" :key="item.id">
+                {{ item.name }}
+                <span v-if="tag.length != i + 1">></span>
+              </span>
+            </el-tag>
+          </div>
+        </el-form-item>
+      </el-col>
+    </el-row>
+  </el-form>
+</template>
+<script>
+import { industry } from "@/api/config";
+export default {
+  props: {
+    value: Object,
+  },
+  data() {
+    return {
+      levelI: [], // I级数据
+      levelII: [], // II级数据
+      levelIII: [], // III级数据
+      fields: [], // 当前下拉框选中的集合
+      industrysTags: [], // 点击添加按钮后临时存储的数据集合
+      rules: {
+        industrys: [
+          {
+            type: "array",
+            required: true,
+            message: "请选择并添加",
+            trigger: "change",
+          },
+        ],
+      },
+    };
+  },
+  methods: {
+    getFieldByParent(id) {
+      return new Promise((resolve, reject) => {
+        industry({ parent_id: id })
+          .then(({ code, msg, data }) => {
+            if (code == 200) {
+              resolve(data);
+            } else {
+              this.$modal.msgError(msg);
+              reject({ msg, code });
+            }
+          })
+          .catch((error) => {
+            reject(error);
+          });
+      });
+    },
+    async levelIChange(item) {
+      delete this.fields[1];
+      delete this.fields[2];
+      this.levelII = await this.getFieldByParent(item.id);
+    },
+    async levelIIChange(item) {
+      delete this.fields[2];
+      this.levelIII = await this.getFieldByParent(item.id);
+    },
+    // 所属领域添加按钮
+    fieldAdd() {
+      if (!this.fields.length) return this.$modal.msgError("请选择领域类型");
+      this.value.industrys = [];
+      this.industrysTags.push(this.fields);
+      for (let i = 0; i < this.industrysTags.length; i++) {
+        this.value.industrys.push("");
+        const item = this.industrysTags[i];
+        for (let j = 0; j < item.length; j++) {
+          const item2 = item[j];
+          if (this.value.industrys[i] == "") {
+            this.value.industrys[i] = item2.id;
+          } else {
+            this.value.industrys[i] = this.value.industrys[i] + "-" + item2.id;
+          }
+        }
+      }
+      this.fields = [];
+      this.levelII = [];
+      this.levelIII = [];
+    },
+    handleFieldClose(index) {
+      this.industrysTags.splice(index, 1);
+      this.value.industrys.splice(index, 1);
+    },
+    submitForm() {
+      this.$refs["form"].validate((valid) => valid);
+    },
+  },
+  created() {
+    industry().then((res) => {
+      this.levelI = res.data;
+    });
+  },
+};
+</script>
+<style lang="scss" scoped>
+.e_tag {
+  .el-tag {
+    margin-right: 10px;
+  }
+}
+</style>