table组件封装 入门学习-12

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获取checkbox的数据

我们看一下element-ui的官方文档,我们可以得知 selection-change这个方法 可以获取checkbox的回调

<template>
    <el-table 
    :data="tableData" 
    style="width: 100%"
    @selection-change="handleSelectionChange">
    >
    </el-table>
</template>
//script
        handleSelectionChange(val) {
            console.log(val);
        }

当我们点击单选框时,这时候我们就可以打印出这一行的数据,选择多个的话就放到一个数组里面

d52c1cefe6a3af78bcafcba2308fef9.png

这里我们通过:check-list.sync="check_list"来进行数据同步,子组件通过this.$emit("update:checkList",val)那数据同步出去,父组件watch去监听

<template>
  <a-table ref="table" on-load :check-list.sync="check_list"  :format="formatData" @onload="onload" index :checkbox="true" :init-request="false" :column="column" :data="data_1" :params="data_2" url="/api/home" method="get">
    <template v-slot:operation="slot">
        <el-button type="primary">编辑</el-button>
        <el-button @click="jumn(slot.data)">删除</el-button>
    </template>
  </a-table>
</template>
//script
 data() {
    return {
        check_list: []
    };
  },
//Table组件
    props: {
        checkList: {
            type:Array,
            default: () => []
        },
    },
     handleSelectionChange(val) {
            this.$emit("update:checkList",val)
        }

通过watch的方法也可以定义一个点击事件

  watch: {
    check_list: {
      handler(n, o) {
        console.log(111,n);
      }
    }
  },

我们也可以获取到自己想要的数据

64f024646dde8902174dcd609f37b0c.png

sorttable排序

在列中设置sortable属性即可实现以该列为基准的排序,接受一个Boolean,默认为false

 <el-table-column :sortable="item.sort" v-else :key="item.prop" :prop="item.prop" :label="item.label"></el-table-column>

我们想要在哪里加排序只需要在自定义内容里面加一个sort=true即可,这里我们在url地址表头上面加了

  data() {
    return {
    column: [
        { 
            
            label: "URL地址", 
            sort: true,
            prop: "date" ,
        },
        { label: "姓名", prop: "name" },
        { label: "地址", prop: "address" },
        {
            type: 'slot',
            label: "操作",
            prop: 'operation',
            slot_name: "operation"
        }
      ],
    };
  },

这样就方便的显示出来了

c6262ed3ce0d141352d83cc512d6a94.png

附完整代码

<template>
  <a-table ref="table" on-load :check-list.sync="check_list"  :format="formatData" @onload="onload" index :checkbox="true" :init-request="false" :column="column" :data="data_1" :params="data_2" url="/api/home" method="get">
    <template v-slot:operation="slot">
        <el-button type="primary">编辑</el-button>
        <el-button @click="jumn(slot.data)">删除</el-button>
    </template>
  </a-table>
</template>
<script>
export default {
  name: "Home",
  components: {
    "a-table": () => import("@/components/table/index"),
  },
  data() {
    return {
        check_list: [],
        data_1: {
            name: 22
        },
        data_2: {
            name: 255555
        },
    column: [
        { 
            
            label: "URL地址", 
            sort: true,
            prop: "date" ,
        },
        { label: "姓名", prop: "name" },
        { label: "地址", prop: "address" },
        {
            type: 'slot',
            label: "操作",
            prop: 'operation',
            slot_name: "operation"
        }
      ],
    };
  },
  watch: {
    check_list: {
      handler(n, o) {
        console.log(111,n);
      }
    }
  },
  mounted() {
    setTimeout(() => {
        this.$refs.table.handlerRequest()
    },2000)
  },
  methods: {
    jumn(data) {
        console.log(data);
    },
    //打印回调的结果
    onload(data) {
        console.log(data);
    },
    formatData(data) {
       const request_data = [data[0]]
       return request_data
    }
  }
};
</script>
<template>
    <el-table 
    :data="tableData" 
    style="width: 100%"
    @selection-change="handleSelectionChange">
    >
    <el-table-column v-if="index" type="index" width="40px"></el-table-column>
    <el-table-column v-if="checkbox" type="selection" width="40px"></el-table-column>
    
    <template v-for="item in column">
    <el-table-column  v-if="item.type === 'function'" :key="item.prop" :prop="item.prop" :label="item.label">
        <template slot-scope="{row}">
            <div v-html="item.callback && item.callback(row)"></div>
        </template>
    </el-table-column>
    <el-table-column v-if="item.type === 'slot'" :key="item.prop" :prop="item.prop" :label="item.label">
        <template slot-scope="{row}">
            <slot :name="item.slot_name" :data="row"></slot>
        </template>
    </el-table-column>
    <el-table-column :sortable="item.sort" v-else :key="item.prop" :prop="item.prop" :label="item.label"></el-table-column>

    </template>
    </el-table>
</template>
<script>
export default {
    name: "Table",
    props: {
        checkList: {
            type:Array,
            default: () => []
        },
        column: {
            type: Array,
            default: () => []
        },
        checkbox: {
            type: Boolean,
            default: true
        },
        initRequest: {
            type: Boolean,
            default: true
        },
        url:{
            type: String,
            default: "",
            require: true
        },
        method: {
            type: String,
            default: "post",
            require: true
        },
        data: {
            type: Object,
            default: () => {}
        },
        params: {
            type: Object,
            default: () => {}
        },
        format: Function,
        index: Boolean,
        onLoad: Boolean,//默认是fasle
    },
    data() {
    return {
        tableData: [],
    };
},
    beforeMount() {
        this.initRequest && this.getTableList()
    },
    methods: {
        getTableList() {
            const url = this.url
            if(!url) {
                console.log("请求地址不存在");
                return false
            }
            const request_data = {
                url: this.url,
                method: this.method
            }
            if(JSON.stringify(this.data) != '{}') {
                request_data.data = this.data
            }
            if(JSON.stringify(this.params) != '{}') {
                request_data.params = this.params
            }
            
            this.$axios({request_data}).then((Response => {
                let request_data = Response.data
                if(this.format && typeof this.format=== 'function') {
                    request_data = this.format(Response.data)                  
                }
                this.tableData = request_data             
                   //回调数据
                this.onLoad && this.$emit("onload",Response.data) 

                }))
        },
        handlerRequest() {
            this.getTableList()
        },
        handleSelectionChange(val) {
            this.$emit("update:checkList",val)
        }
    }
};
</script>