React 模板封装之树形模板 TreeTable

短命女 2022-12-31 12:24 240阅读 0赞

### React 模板封装之树形模板 TreeTable ###

*  前言
 *  一、树形模板 TreeTable
 *  二、使用案例
 *  三、API 使用指南
 *  四、源代码
 *  五、总结

# 前言 #

前面有介绍过 [React 模板封装之基础模板 BaseTable][React _ BaseTable] 和 [React 模板封装之拖曳模板 DragTable][React _ DragTable]，今天在这两个模板的基础上实现一个树形模板 TreeTable。目前该模板只支持两个层级。本模板指的是父级表格与子级表格数据格式不一致的情况。

# 一、树形模板 TreeTable #

**模板说明：**  
在原先模板的基础上实现一个树形模板 TreeTable。

**效果展示：**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEzNTEyMQ_size_16_color_FFFFFF_t_70]

**使用场景：**  
父表格中嵌套子表格的场景。

# 二、使用案例 #

参数说明

1.  modalList ：父级表格配置接口对应的字段数据集。
2.  childModalList：子级表格配置接口对应的字段数据集。
3.  actions：父级表格配置接口功能，如配置增删改查接口（url、method、data等）。
4.  childActions：子级表格配置接口功能。
5.  insertModalList：弹出框的表格配置接口对应的字段数据集。
6.  insertActions：弹出框的表格配置接口功能。
7.  isInsert：是否需要插入功能（插入父级对应的子集数据）。
8.  isSort：是否需要拖曳排序功能。
9.  parentIdField：子级表格增删改查时需要上传的父级 id 的字段名。

import React from "react";
    import TreeTable from "../../../../template/TreeTable/index";
    const modalList = [
      { 
        label: "ID",
        field: "id",
        renderType: "Input",
        visible: false,
        writable: true,
        isUpdate: true,
        updateField: "id",
      },
      { 
        label: "期刊名称",
        field: "periodicalName",
        renderType: "Input",
        require: true,
        visible: true,
        isUpdate: true,
        updateField: "periodicalName",
        updateWritable: true,
        updateVisible: true,
      },
      { 
        label: "主编",
        field: "majorEditor",
        renderType: "Input",
        require: true,
        visible: true,
        isUpdate: true,
        updateField: "majorEditor",
        updateWritable: true,
        updateVisible: true,
      },
      { 
        label: "编辑",
        field: "editors",
        renderType: "Input",
        require: true,
        visible: true,
        isUpdate: true,
        updateField: "editors",
        updateWritable: true,
        updateVisible: true,
      },
      { 
        label: "图片",
        field: "picUrl",
        renderType: "Upload",
        visible: true,
        isUpdate: true,
        updateField: "picUrl",
        updateWritable: true,
        updateVisible: true,
      },
      { 
        label: "是否显示",
        field: "isShow",
        require: true,
        renderType: "Switch",
        visible: true,
        radioOptions: [
          {  label: "是", key: 1 },
          {  label: "否", key: 0 },
        ],
        defaultValue: 0,
        isUpdate: true,
        updateField: "isShow",
        updateWritable: true,
        updateVisible: true,
        updateRenderType: "Radio",
        sourceApi: {  url: "/admin/weeksPeriodical/updateShow", method: "post" },
      },
    ];
    const actions = [
      { 
        status: "update",
        name: "编辑",
        url: "/admin/weeksPeriodical/update",
        method: "post",
        showColumn: true,
      },
      { 
        status: "add",
        name: "新增",
        url: "/admin/weeksPeriodical/add",
        method: "post",
        showColumn: false,
      },
      { 
        status: "query",
        name: "查询",
        url: "/admin/weeksPeriodical/listByPage",
        extraField: "list",
        method: "post",
        showColumn: false,
      },
    ];
    const childModalList = [
      { 
        label: "栏目ID",
        field: "columnId",
        renderType: "Input",
        visible: true,
        writable: true,
      },
      { 
        label: "栏目名称",
        field: "columnName",
        renderType: "Input",
        require: true,
        visible: true,
      },
      { 
        label: "栏目描述",
        field: "description",
        renderType: "Input",
        require: true,
        visible: true,
      },
    ];
    const childActions = [
      { 
        status: "del",
        name: "删除",
        url: "/admin/weeksPeriodicalColumn/delColumn",
        method: "post",
        showColumn: true,
        data: { 
          periodicalId: "",
          columnId: "",
        },
      },
      { 
        status: "sort",
        name: "排序",
        url: "/admin/weeksPeriodicalColumn/sort",
        method: "post",
        showColumn: false,
        data: { 
          periodicalId: "",
          columnIdList: "",
        },
      },
      { 
        status: "query",
        name: "查询",
        url: "/admin/weeksPeriodicalColumn/columnList",
        extraField: "list",
        method: "post",
        showColumn: false,
        data: { 
          periodicalId: "",
        },
      },
      { 
        status: "insert",
        name: "插入",
        url: "/admin/weeksPeriodicalColumn/addColumn",
        method: "post",
        showColumn: false,
        data: { 
          periodicalId: "",
          columnIdList: [],
        },
      },
    ];
    const insertModalList = [
      {  label: "ID", field: "id", renderType: "Input", visible: true },
      { 
        label: "栏目名称",
        field: "columnName",
        renderType: "Input",
        require: true,
        visible: true,
        width: 250,
      },
      { 
        label: "栏目描述",
        field: "description",
        renderType: "Input",
        require: true,
        visible: true,
        width: 350,
      },
      { 
        label: "栏目图片",
        field: "picUrl",
        renderType: "Upload",
        require: true,
        visible: true,
        width: 250,
      },
    ];
    const insertActions = [
      { 
        status: "query",
        name: "查询",
        url: "/admin/weeksColumn/allList",
        method: "get",
        showColumn: false,
      },
    ];
    function Periodical() { 
      return (
        <TreeTable
          actions={ actions}
          modalList={ modalList}
          childActions={ childActions}
          childModalList={ childModalList}
          insertActions={ insertActions}
          insertModalList={ insertModalList}
          isInsert={ true}
          isSort={ true}
          insertTitle="选择栏目"
          parentIdField="periodicalId"
        />
      );
    }
    export default Periodical;

# 三、API 使用指南 #

参考 [React 模板封装之基础模板 BaseTable][React _ BaseTable]

# 四、源代码 #

在 TreeTable 目录中包含如下文件。

index.js

import React from "react";
    import {  Modal, message, Button } from "antd";
    import {  addAPI, getListAPI,editAPI} from "../commonApi";
    import DragTable from "../DragTable/index";
    import BaseTable from "../BaseTable";
    import {  useState, useRef } from "react";
    function onExpand(newChildActions,props,setActions,setCurrentId, expanded, record) { 
      let { parentIdField,modalList } = props;
      let field = modalList[0].field;
      newChildActions.map((item)=>{ 
          let data = item.data;
          data[parentIdField] = record[field];
      })  
      if (expanded) {   
        setActions(newChildActions);
        setCurrentId(record[field]);
      }
    }
    function getDataSource(newChildActions,childModalList, cb) {  
      let queryAction = newChildActions.filter((item) => item.status === "query")[0];
      getListAPI(queryAction, childModalList, { }, "", (state) => { 
        if (cb) { 
          cb(state.dataSource);
        }
      });
    }
    function insertColumn(
      newChildActions,childModalList,
      setShowSelectionColumn,
      setSelectedRowKeys,
      setDisabledKeys
    ) { 
      setShowSelectionColumn(true);
      getDataSource(newChildActions,childModalList, (expandData) => { 
        if (expandData && expandData.length > 0) { 
          let selectedRowKeys = [];
          expandData.map((item) => { 
            selectedRowKeys.push(item.columnId);
          });
          setDisabledKeys(selectedRowKeys);
          setSelectedRowKeys(selectedRowKeys);
        } else { 
          setDisabledKeys([]);
          setSelectedRowKeys([]);
        }
      });
    }
    
    function onSelectChange(setSelectedRowKeys, selectedRowKeys) { 
      setSelectedRowKeys(selectedRowKeys);
    }
    
    async function addColumns(
      newChildActions,childModalList,
      selectedRowKeys,
      setShowSelectionColumn, 
      dragTable
    ) { 
      let childAction = newChildActions.filter(
        (item) => item.status === "insert"
      )[0];
      addAPI(
        childAction,
        childModalList,
        {  columnIdList: selectedRowKeys },
        () => { 
          getDataSource(newChildActions,childModalList, (dataSource)=>{ 
            let setDataSource = dragTable.current.setDataSource;
            setDataSource(dataSource);
            setShowSelectionColumn(false);
            message.success("添加成功");
          });
        }
      );
    }
    function checkBox(disabledKeys, record) { 
      return { 
        disabled: disabledKeys.includes(record.id),
      };
    }
    
    function onExpandedRowsChange(setExpandedRowKeys, expandedRows) { 
      if (expandedRows.length > 1) { 
        let id = expandedRows.pop();
        setExpandedRowKeys([id]);
      } else { 
        setExpandedRowKeys(expandedRows);
      }
    }
    function sortSuccess( newChildActions,childModalList,columnIdList){ 
      let action = newChildActions.filter((item) => item.status === "sort")[0]; 
      let option = { columnIdList};
      editAPI(action, childModalList, option);
    }
    function TreeTable(props) { 
      let { 
        modalList,
        actions,
        insertActions,
        childActions,
        childModalList,
        isInsert,
        isSort,
        insertTitle,
        insertModalList
      } = props;
      const [showSelectionColumn, setShowSelectionColumn] = useState(false);
      const [selectedRowKeys, setSelectedRowKeys] = useState([]);
      const [disabledKeys, setDisabledKeys] = useState([]);
      const [expandedRowKeys, setExpandedRowKeys] = useState([]);
      const [currentId,setCurrentId] = useState("");
      const [newChildActions,setActions] = useState(childActions);
      const dragTable = useRef();
      const rowSelection = { 
        selectedRowKeys,
        onChange: onSelectChange.bind(this, setSelectedRowKeys),
        getCheckboxProps: checkBox.bind(this, disabledKeys),
      };
      const expandedRowRender = (row) => { 
        let {  modalList } = props;
        let field = modalList[0].field;
        if(row[field] === currentId){ 
          return (
            <div>
              { isSort? (
                <DragTable
                  actions={ newChildActions}
                  modalList={ childModalList}                       
                  ref={ dragTable}
                  sortSuccess={ sortSuccess.bind(this, newChildActions,childModalList)}
                />
              ) : (
                <BaseTable
                  actions={ newChildActions}
                  pagination={ false}
                  modalList={ childModalList}                     
                  ref={ dragTable}
                />
              )}
              { isInsert ? (
                <div className="cm-cursor-p" style={ {  color: "#1790FF" }}>
                  <Button
                    icon="plus"
                    block          
                    primary                     
                    type="dashed"
                    size="large"
                    onClick={ () =>
                      insertColumn(
                        newChildActions,
                        childModalList,
                        setShowSelectionColumn,
                        setSelectedRowKeys,              
                        setDisabledKeys
                      )
                    }
                  >
                    插入
                  </Button>
                </div>
              ) : null}
            </div>
          );
        }
      };
      return (
        <div>
          <BaseTable
            actions={ actions}
            modalList={ modalList}
            onExpand={ onExpand.bind(this, newChildActions,props,setActions,setCurrentId)}
            expandedRowRender={ expandedRowRender}
            onExpandedRowsChange={ onExpandedRowsChange.bind(
              this,
              setExpandedRowKeys
            )}
            expandedRowKeys={ expandedRowKeys}
          />
          <Modal
            bodyStyle={ {  padding: 0 }}       
            title={ insertTitle}
            visible={ showSelectionColumn}
            onOk={ () =>
              addColumns(
                newChildActions,childModalList,
                selectedRowKeys,
                setShowSelectionColumn,           
                dragTable
              )
            }
            onCancel={ () => setShowSelectionColumn(false)}
          >
            <BaseTable
              actions={ insertActions}
              rowSelection={ rowSelection}
              modalList={ insertModalList}
              expandedRowKeys={ expandedRowKeys}
            />
          </Modal>
        </div>
      );
    }
    export default React.forwardRef(TreeTable);

以上可能有部分关联的JS文件没贴出来，因文件太多，就不一一贴出，需要的请留言。

# 五、总结 #

树形模板目前只支持两级，即父表格与子表格。并且父级表格与子级表格数据格式不一致。

[React _ BaseTable]: https://blog.csdn.net/weixin_44135121/article/details/111858227
[React _ DragTable]: https://blog.csdn.net/weixin_44135121/article/details/111933703
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDEzNTEyMQ_size_16_color_FFFFFF_t_70]: /images/20221120/f813890e81f64a40b4944e7387c15f29.png