专利列表和企业列表

src/views/components/FieldSingle/index.vue

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+<template>
+  <el-form
+    :disabled="!isAdd"
+    ref="form"
+    :model="value"
+    :rules="rules"
+    :label-width="labelWidth + 'px'"
+  >
+    <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="7">
+              <el-form-item prop="industrys">
+                <el-select
+                  v-model="value.industrys[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.id"
+                  >
+                  </el-option>
+                </el-select>
+              </el-form-item>
+            </el-col>
+            <el-col :span="7">
+              <el-select
+                v-model="value.industrys[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.id"
+                >
+                </el-option>
+              </el-select>
+            </el-col>
+            <el-col :span="7">
+              <el-select
+                v-model="value.industrys[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-row>
+        </el-form-item>
+      </el-col>
+    </el-row>
+  </el-form>
+</template>
+<script>
+import { industry } from "@/api/config";
+export default {
+  props: {
+    value: Object,
+    isAdd: {
+      type: Boolean,
+      default: true,
+    },
+    labelWidth: {
+      type: Number,
+      default: 120,
+    },
+  },
+  data() {
+    return {
+      levelI: [], // I级数据
+      levelII: [], // II级数据
+      levelIII: [], // III级数据
+      rules: {
+        industrys: [
+          {
+            type: "array",
+            required: true,
+            message: "请选择",
+            trigger: "change",
+          },
+        ],
+      },
+    };
+  },
+  watch: {
+    value(newOld) {
+      const data = Object.assign({}, newOld);
+      let key = [];
+      for (let i = 0; i < data.industrys.length; i++) {
+        key.push(data.industrys[i].key);
+      }
+      if (key.length > 0) {
+        this.levelIChange(key[0]);
+      }
+      if (key.length > 1) {
+        this.levelIIChange(key[1]);
+      }
+      newOld.industrys = key;
+    },
+  },
+  methods: {
+    getFieldByParent(id) {
+      return new Promise((resolve, reject) => {
+        industry({ parent_id: id })
+          .then(({ code, msg, data }) => {
+            if (code == 200) {
+              resolve(data);
+            } else {
+              this.$modal.msgError(msg);
+              reject({ msg, code });
+            }
+          })
+          .catch((error) => {
+            reject(error);
+          });
+      });
+    },
+    async levelIChange(id) {
+      this.value.industrys[1] = "";
+      this.value.industrys[2] = "";
+      this.levelII = await this.getFieldByParent(id);
+    },
+    async levelIIChange(id) {
+      this.value.industrys[2] = "";
+      this.levelIII = await this.getFieldByParent(id);
+    },
+    submitForm() {
+      let flag = false;
+      this.$refs["form"].validate((valid) => {
+        flag = valid;
+      });
+      return flag;
+    },
+  },
+  created() {
+    industry().then((res) => {
+      this.levelI = res.data;
+    });
+  },
+};
+</script>