vue+element-ui的列表查询条件/筛选条件太多以下拉选择方式动态添加条件（支持全选、反选、清空）

1、此功能已集成到TQueryCondition组件中

2、最终效果

在这里插入图片描述

3、具体源码(新增moreChoose.vue)

<template>
  <el-popover
    popper-class="t_query_condition_more"
    :bind="popoverAttrsBind"
    ref="popover"
    v-if="allcheckList.length>0"
  >
    <div class="inside_box">
      <div class="inside_box_title">
        <div>{{popoverAttrsBind.title||'所有条件'}}</div>
        <div class="check-box">
          <el-button
            size="mini"
            type="text"
            @click="handlecheckAll"
          >{{popoverAttrsBind.allTxt||'全选'}}</el-button>
          <el-button
            size="mini"
            type="text"
            @click="handleReset"
          >{{popoverAttrsBind.clearTxt||'清空'}}</el-button>
          <el-button
            size="mini"
            type="text"
            @click="handleReverseCheck"
          >{{popoverAttrsBind.reverseTxt||'反选'}}</el-button>
        </div>
      </div>
      <el-checkbox-group v-model="checkList" class="inside_box_main" @change="getcheck">
        <el-checkbox v-for="item of allcheckList" :key="item.name" :label="item.label"></el-checkbox>
      </el-checkbox-group>
    </div>
    <span class="more_dropdown_icon" slot="reference">
      <span class="out_box">{{popoverAttrsBind.showTxt||'更多'}}</span>
      <i class="el-icon-arrow-down"></i>
    </span>
  </el-popover>
</template>
<script>
export default {
  name: 'MoreChoose',
  props: {
    // 以下拉方式展示更多条件---数据源
    moreCheckList: {
      type: Array,
      default: () => []
    },
    // 更多条件--el-popover属性
    popoverAttrs: {
      type: Object,
      default: () => ({})
    }
  },
  data() {
    return {
      checkList: [],
      isCheckList: [], // 已选中
      allcheckList: this.moreCheckList // 全部可选项
    }
  },
  watch: {
    // 全部可选项
    moreCheckList: {
      handler(list) {
        this.allcheckList = list
      },
      deep: true
    },
    // 选中项
    checkList: {
      handler(nval, oval) {
        let list = []
        oval.forEach(ele => {
          if (!nval.some(val => val == ele)) {
            list.push(ele)
          }
        })
        this.isCheckList.forEach((ele, j) => {
          if (list.filter(val => val == ele.label)[0]) {
            delete this.isCheckList[j]
          }
        })
      }
    }
  },
  computed: {
    // 以下拉方式展示更多条件--属性
    popoverAttrsBind() {
      const popoverAttrs = { showTxt: '更多', title: '所有条件', allTxt: '全选', reverseTxt: '反选', clearTxt: '清空', ...this.popoverAttrs }
      return { placement: 'bottom', width: 240, trigger: 'click', ...popoverAttrs }
    }
  },
  methods: {
    // 全选
    handlecheckAll() {
      this.checkList = this.allcheckList.map((item) => item.label)
      // console.log('全选', this.checkList)
      this.isCheckList = this.allcheckList
      const checkObj = this.analysisObj(this.isCheckList)
      this.$emit('getCheckList', checkObj)
    },
    // 反选
    handleReverseCheck() {
      const checkList = JSON.parse(JSON.stringify(this.checkList))
      this.checkList = []
      this.isCheckList = []
      this.allcheckList.forEach((ele, j) => {
        if (!checkList.filter((item1) => item1 == ele.label)[0]) {
          this.checkList.push(ele.label)
          this.isCheckList.push(ele)
        }
      })
      const checkObj = this.analysisObj(this.isCheckList)
      // console.log('反选', checkObj)
      this.$emit('getCheckList', checkObj)
    },
    // 清空
    handleReset() {
      // console.log('清空')
      this.checkList = []
      this.isCheckList = []
      this.$emit('getCheckList', {})
    },
    // 单选
    getcheck(val) {
      this.allcheckList.forEach((ele, j) => {
        if (val.filter(item1 => item1 == ele.label)[0]) {
          this.isCheckList.push(ele)
        }
      })
      // console.log('isCheckList---', this.isCheckList, this.checkList)
      const checkObj = this.analysisObj(this.isCheckList)
      // console.log('checkObj--222', checkObj)
      this.$emit('getCheckList', checkObj)
    },
    // 格式化
    analysisObj(val) {
      return val.reduce((obj, item) => {
        obj[item.prop] = {
          label: item.label,
          comp: item.comp,
          bind: item.bind,
          child: item && item.child,
          slotName: item && item.slotName,
          span: item && item.span,
          defaultVal: item && item.defaultVal
        }
        if (item.comp === 'el-select') {
          obj[item.prop].child = item.list.reduce((acc, cur) => {
            acc.push({
              comp: 'el-option',
              value: cur[item.valueKey || 'key'],
              bind: {
                label: cur[item.labelKey || 'label'],
                key: cur[item.valueKey || 'key']
              }
            })
            return acc
          }, [])
        }
        return obj
      }, {})
    }
  }
}
</script>
<style lang="scss">
.t_query_condition_more.el-popover {
  padding: 10px 15px;
  padding-top: 5px;
  .inside_box {
    display: flex;
    flex-direction: column;
    .inside_box_title {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .inside_box_main {
      display: grid;
      grid-template-columns: repeat(2, minmax(100px, 50%));
      .el-checkbox {
        display: flex;
        align-items: center;
        .el-checkbox__label {
          -webkit-box-sizing: border-box;
          box-sizing: border-box;
          overflow: hidden;
          text-overflow: ellipsis;
          word-break: break-all;
          min-width: 90px;
        }
      }
    }
  }
}
</style>

4、集成到TQueryCondition组件

注意点：开启以下拉方式展示更多条件禁用展开&收起功能

代码示例

<template>
  <t-layout-page>
    <t-layout-page-item>
      <t-query-condition
        ref="queryCondition"
        :opts="opts"
        isDropDownSelectMore
        :loading="loading"
        :moreCheckList="moreCheckList"
        @submit="conditionEnter"
        @getCheckList="getChildCheck"
      >
        <template #likeTransportNo="{param}">
          <el-input v-model="param.likeTransportNo" clearable placeholder="自定义插槽输入框" />
        </template>
      </t-query-condition>
    </t-layout-page-item>
  </t-layout-page>
</template>
<script>
const ADDRESS_TYPES = [
  {
    label: '前纺一车间',
    key: 'W1'
  },
  {
    label: '前纺二车间',
    key: 'W2'
  },
  {
    label: '前纺三车间',
    key: 'W3'
  }
]
export default {
  name: 'queryData',
  data() {
    return {
      loading: false,
      queryData: {
        likeCargoNo: null,
        likeBookNo: null,
        likeTransportNo: null,
        likeCargoName: null,
        workshopNum: null,
        workshopNum1: null,
        date1: null,
        // date: null,
      },
      sexList: [],
      hobbyList: [],
      opts: {
        likeCargoNo: {
          label: '货源编号',
          comp: 'el-input'
        },
        likeBookNo: {
          labelRender: () => {
            return (
              <el-tooltip content={'自定义label'} placement="top">
                <div>订单编号</div>
              </el-tooltip>
            )
          },
          placeholder: '自定义label',
          comp: 'el-input'
        },
        likeTransportNo: {
          label: '运单编号',
          comp: 'el-input',
          slotName: 'likeTransportNo',
        },
        likeCargoName: {
          label: '货品名称',
          comp: 'el-input',
          bind: {
          }
        },
        workshopNum1: {
          label: '车间2',
          comp: 'el-select',
          child: ADDRESS_TYPES.reduce((acc, cur) => {
            acc.push({
              comp: 'el-option',
              value: cur.key,
              bind: {
                label: cur.label,
                key: cur.key
              }
            })
            return acc
          }, [])
        },
        workshopNum: {
          label: '车间',
          comp: 'el-select',
          changeEvent: 'change',
          // defaultVal: 'W1',
          bind: {
          },
          child: [
            {
              comp: 'el-option',
              value: 'W1',
              bind: {
                label: '前纺一车间',
                key: 'W1'
              }
            },
            {
              comp: 'el-option',
              value: 'W2',
              bind: {
                label: '前纺二车间',
                key: 'W2'
              }
            },
            {
              comp: 'el-option',
              value: 'W3',
              bind: {
                label: '前纺三车间',
                key: 'W3'
              }
            }
          ]
        },
        date1: {
          label: '日期',
          comp: 'el-date-picker',
          bind: {
            valueFormat: 'yyyy-MM-dd'
          }
        },
      },
      checkQuery: {}
    }
  },
  computed: {
    moreCheckList() {
      return [
        { label: '姓名', comp: 'el-input', prop: 'name' },
        { label: '年龄', comp: 'el-input', prop: 'age' },
        { label: '性别', comp: 'el-select', prop: 'sex', valueKey: "value", list: this.sexList },
        {
          label: "爱好", comp: "t-select", prop: 'hobby', span: 2, bind: { multiple: true, optionSource: this.hobbyList, valueKey: "value", },
        },
        { label: '合同号', comp: 'el-input', prop: 'contractNo' },
        { label: '供应商', comp: 'el-input', prop: 'supplier' },
        { label: '磅单号', comp: 'el-input', prop: 'balanceCode' },
        { label: '车牌号', comp: 'el-input', prop: 'license' },
        { label: '备注', comp: 'el-input', prop: 'remark' },
        { label: '检验员', comp: 'el-input', prop: 'inspector' },
        { label: '取样人', comp: 'el-input', prop: 'sampler' },
        { label: '审核人', comp: 'el-input', prop: 'reviewer' },
        { label: '其他检验项', comp: 'el-input', prop: 'physicsInspection' },
        { label: '实际数量', comp: 'el-input', prop: 'factQuantity' }
      ]
    }
  },
  watch: {
    checkQuery: {
      handler(nval, oval) {
        for (let i = 0; i < Object.keys(oval).length; i++) {
          this.$delete(this.opts, Object.keys(oval)[i])
        }
        this.opts = Object.assign({}, this.opts, nval)
        for (let i = 0; i < Object.keys(this.opts).length; i++) {
          this.queryData[Object.keys(this.opts)[i]] = null
        }
      },
      deep: true
    }
  },
  created() {
    this.getList()
  },
  // 方法
  methods: {
    getList() {
      this.sexList = [{ label: '男', value: '1' }, { label: '女', value: '2' }]
      this.hobbyList = [
        { label: '吉他', value: '0' },
        { label: '看书', value: '1' },
        { label: '美剧', value: '2' },
        { label: '旅游', value: '3' },
        { label: '音乐', value: '4' }
      ]
    },
    getChildCheck(val) {
      this.checkQuery = val
    },
    // 点击查询按钮
    conditionEnter(data) {
      this.loading = true
      this.queryData = data
      console.log('最终条件', this.queryData)
      setTimeout(() => {
        this.loading = false
      }, 2000)
    }
  }
}
</script>

5、以下拉方式展示更多条件–配置参数（Attributes）

参数	说明	类型	默认值
popoverAttrs	el-popover配置及中文文案	object	具体看源码
moreCheckList	数据源	Array	-
-----label	标题	string	-
-----comp	组件名称，可直接指定全局注册的组件	string,component	-
-----prop	接收字段（即后台接收字段）	string	-
-----bind	组件配置参数（Attributes）	object	-
-----slotName	自定义输入框插槽	string	-
-----span	控件占用的列宽，默认占用 1 列，最多 4 列 (独占一行)	number	1
-----defaultVal	默认值	string	-
-----list	el-select 组件options 数据	Array	-