elmenetui表格二次封装包含查询框和分页

<!--
   dataList: 表格数据
   columnList: 表头字段  宽度minWidth
   使用slotName字段: 需要对列数据进行处理，不写prop字段，使用slotName字段
   btnText<String>: 按钮字段
   btnIcon<String>: 按钮的icon
   btnEvent: 按钮事件
   btnType: 按钮类型
   getHeight<String>: 表格高度
   pagination: 分页回调方法
   formItemList: 查询条件List  -----label字段名 type类型(select、input、daterange、cascader)
                 select(selectOptions下拉框数据、defaultSelect下拉框默认选中数据)
                 cascader(options级联选择框数据)   param(用来接收查询参数)
   search: 查询事件
   isAddBtn: 是否显示添加按钮
-->
<template>
  <div class="app-container">
    <el-form
      :inline="true"
      ref="ruleForm"
      :model="formInline"
      class="demo-form-inline"
    >
      <el-form-item
        v-for="(item, index) in formItemList"
        :key="index"
        :label="item.label"
      >
        <!-- 下拉选择框 -->
        <el-select
          v-if="item.type == 'select'"
          v-model="formInline[item.param]"
          :multiple="item.multiple"
          placeholder="请选择"
          size="mini"
          clearable
        >
          <el-option
            v-for="(item2, index2) in item.selectOptions"
            :key="index2"
            :label="item2.dictLabel"
            :value="item2.dictValue"
          ></el-option>
        </el-select>
        <!-- 下拉选择框end -->
        <!-- 输入框 -->
        <el-input
          v-if="item.type == 'input'"
          v-model="formInline[item.param]"
          size="mini"
          placeholder="请输入"
          clearable
        ></el-input>
        <!-- 输入框 -->
        <!-- 日期范围选择框 -->
        <el-date-picker
          v-if="
            item.type == 'daterange' ||
              item.type == 'datetimerange' ||
              item.type == 'date' ||
              item.type == 'datetime'
          "
          v-model="formInline[item.param]"
          :value-format="item.valueFormat || 'yyyy-MM-dd hh:mm:ss'"
          :format="item.format || 'yyyy-MM-dd hh:mm:ss'"
          clearable
          :type="item.type || ''"
          :range-separator="item.rangeSeparator || '至'"
          :start-placeholder="item.startPlaceholder"
          :end-placeholder="item.endPlaceholder"
          placeholder="请选择"
          size="mini"
        >
        </el-date-picker>
        <!-- 日期范围选择框end -->
        <!-- 级联选择器 -->
        <el-cascader
          v-if="item.type == 'cascader'"
          v-model="formInline[item.param]"
          size="mini"
          :options="item.options"
          :props="item.props"
          clearable
        ></el-cascader>
        <!-- 级联选择器end -->
      </el-form-item>
      <slot name="formItem"></slot>

      <el-form-item style="width:10rem">
        <el-button type="primary" size="mini" @click="onSubmit">查询</el-button>
        <el-button type="" size="mini" @click="resetForm('ruleForm')"
        >重置</el-button
        >
      </el-form-item>
      <!-- 可用于显示其他按钮 -->
      <el-form-item style="width:10rem" v-if="isAddBtn">
        <el-button :type="btnType" :icon="btnIcon" @click="btnEvent">{{ btnText }}</el-button>
      </el-form-item>
    </el-form>
    <el-table
      ref="table"
      v-loading="loading"
      :data="dataList"
      :height="getHeight"
      stripe
      :header-cell-style="headerCellStyle"
    >
      <el-table-column label="序号" align="center" width="50" type="index" />
      <el-table-column
        v-for="(item, index) in columnList"
        ref="table"
        :label="item.label"
        :key="index"
        :prop="item.prop"
        :fixed="item.fixed"
        :min-width="item.minWidth"
        align="center"
      >
        <template slot-scope="scope">
          <slot v-if="item.slotName" :name="item.slotName" :row="scope.row"></slot>
          <div v-else>{{scope.row[item.prop]}}</div>
        </template>
      </el-table-column>
    </el-table>
    <div class="tabListPage">
      <el-pagination
      small
      class="text-center"
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="page.page"
      :page-sizes="pageSizes"
      :page-size="page.limit"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      ref="pagination"
      >
      </el-pagination>
    </div>
  </div>
</template>

<script>
export default {
  data(){
    let formInline = {};
    for (const obj of this.formItemList) {
      formInline[obj.param] = obj.defaultSelect || "";
    }
    return{
      formInline,
      loading:false,
      headerCellStyle:{background:'#4d5564',textAlign:'center',flexWrap:'wrap',color:'#fff',fontWeight:'600'},
      pageSizes: [10, 20, 50, 100],
      page: {
        page: 1,
        limit: 10,
      },
    }
  },
  props:{
    dataList:{
      type:Array,
    },
    columnList:{
      type:Array,
    },
    btnText:{
      type:String,
      default:'增加'
    },
    btnIcon:{
      type:String,
      default:'el-icon-plus'
    },
    getHeight:{
      type:String,
      default:'730'
    },
    total: {
      type: Number,
    }, // 总条数
    btnType:{
      type:String,
      default:'primary'
    },
    isAddBtn:{
      type:Boolean,
      default: true
    },
    formItemList: {
      type: Array,
      default() {
        return [
          {
            label: "下拉框",
            type: "select",
            selectOptions: [{ text: 111, value: 111 }],
            param: "company",
            defaultSelect: "222", // 下拉框默认选中项
            multiple: false
          },
          {
            label: "输入框",
            type: "input",
            param: "name"
          },
        ];
      }
    }
  },
  watch: {
    // emitSearch(newVal, oldVal) {
    //   // 是否立即触发搜索  用在弹窗中异步请求下拉框后  或者给下拉框赋值默认值后  需要用到这个方法
    //   if (newVal) {
    //     console.log("此时触发--立即执行搜索");
    //     this.$emit("search", this.formInline);
    //   }
    // },
    formItemList: {
      handler(newVal, oldVal) {
        for (const obj of this.formItemList) {
          if (obj.defaultSelect) {
            this.formInline[obj.param] = obj.defaultSelect;
          }
        }
      },
      deep: true
    },
    total(newdata, olddata) {
      if (newdata != olddata) {
        this.$refs.pagination.internalCurrentPage = 1;
        this.page.limit = 10;
      }
    },
  },
  methods:{
    btnEvent(){
      this.$emit('btnEvent', );
    },
    // 每页条数变更
    handleSizeChange(val) {
      this.page.limit = val;
      this.page.page = 1;
      this.$emit("pageChange", this.page);
    },
    // 当前页码变更
    handleCurrentChange(val) {
      this.page.page = val;
      //  this.$refs.pagination.internalCurrentPage = 1;
      this.$emit("pageChange", this.page);
    },
    onSubmit() {
      this.$emit("search", this.formInline);
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
      let formInline = {};
      for (const obj of this.formItemList) {
        // formInline[obj.param] = obj.defaultSelect || "";  // 重置时下拉框的默认值如果要保留就选用这个
        formInline[obj.param] = ""; // 所有筛选条件清空
      }
      this.formInline = formInline;

      this.$emit("search", this.formInline);
    }
  }
}
</script>

<style>
.headerBox{
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 10px;
}
.tabListPage{
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 10px;
}
</style>

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