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mayfly-go/mayfly_go_web/src/views/ops/db/CreateTable.vue
2022-11-02 22:45:39 +08:00

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<template>
<div>
<el-dialog :title="title" v-model="dialogVisible" :before-close="cancel" width="90%">
<el-form label-position="left" ref="formRef" :model="tableData" label-width="80px">
<el-row>
<el-col :span="12">
<el-form-item prop="tableName" label="表名">
<el-input style="width: 80%" v-model="tableData.tableName" size="small"></el-input>
</el-form-item>
</el-col>
<el-col :span="12">
<el-form-item prop="tableComment" label="备注">
<el-input style="width: 80%" v-model="tableData.tableComment" size="small"></el-input>
</el-form-item>
</el-col>
<el-col :span="12">
<el-form-item prop="characterSet" label="charset">
<el-select filterable style="width: 80%" v-model="tableData.characterSet" size="small">
<el-option v-for="item in characterSetNameList" :key="item" :label="item" :value="item">
</el-option>
</el-select>
</el-form-item>
</el-col>
<el-col :span="12">
<el-form-item prop="characterSet" label="collation">
<el-select filterable style="width: 80%" v-model="tableData.collation" size="small">
<el-option v-for="item in collationNameList" :key="item"
:label="tableData.characterSet + '_' + item"
:value="tableData.characterSet + '_' + item">
</el-option>
</el-select>
</el-form-item>
</el-col>
</el-row>
<el-tabs v-model="activeName">
<el-tab-pane label="字段" name="1">
<el-table :data="tableData.fields.res" :max-height="tableData.height">
<el-table-column :prop="item.prop" :label="item.label"
v-for="item in tableData.fields.colNames" :key="item.prop">
<template #default="scope">
<el-input v-if="item.prop === 'name'" size="small" v-model="scope.row.name">
</el-input>
<el-select v-if="item.prop === 'type'" filterable size="small"
v-model="scope.row.type">
<el-option v-for="typeValue in columnTypeList" :key="typeValue"
:value="typeValue">{{ typeValue }}</el-option>
</el-select>
<el-input v-if="item.prop === 'value'" size="small" v-model="scope.row.value">
</el-input>
<el-input v-if="item.prop === 'length'" size="small" v-model="scope.row.length">
</el-input>
<el-checkbox v-if="item.prop === 'notNull'" size="small"
v-model="scope.row.notNull"> </el-checkbox>
<el-checkbox v-if="item.prop === 'pri'" size="small" v-model="scope.row.pri">
</el-checkbox>
<el-checkbox v-if="item.prop === 'auto_increment'" size="small"
v-model="scope.row.auto_increment"> </el-checkbox>
<el-input v-if="item.prop === 'remark'" size="small" v-model="scope.row.remark">
</el-input>
<el-link v-if="item.prop === 'action'" type="danger" plain size="small"
:underline="false" @click.prevent="deleteRow(scope.$index)">删除</el-link>
</template>
</el-table-column>
</el-table>
<el-row style="margin-top: 20px">
<el-button @click="addDefaultRows()" link type="warning" icon="plus">添加默认列</el-button>
<el-button @click="addRow()" link type="primary" icon="plus">添加列</el-button>
</el-row>
</el-tab-pane>
<el-tab-pane label="索引" name="2">
<el-table :data="tableData.indexs.res" :max-height="tableData.height">
<el-table-column :prop="item.prop" :label="item.label"
v-for="item in tableData.indexs.colNames" :key="item.prop">
<template #default="scope">
<el-input v-if="item.prop === 'indexName'" size="small"
v-model="scope.row.indexName"></el-input>
<el-select v-if="item.prop === 'columnNames'" v-model="scope.row.columnNames"
multiple collapse-tags collapse-tags-tooltip filterable placeholder="请选择字段"
style="width: 100%">
<el-option v-for="cl in tableData.indexs.columns" :key="cl.name"
:label="cl.name" :value="cl.name">
{{ cl.name + ' - ' + (cl.remark || '') }}
</el-option>
</el-select>
<el-checkbox v-if="item.prop === 'unique'" size="small" v-model="scope.row.unique">
</el-checkbox>
<el-select v-if="item.prop === 'indexType'" filterable size="small"
v-model="scope.row.indexType">
<el-option v-for="typeValue in indexTypeList" :key="typeValue"
:value="typeValue">{{ typeValue }}</el-option>
</el-select>
<el-input v-if="item.prop === 'indexComment'" size="small"
v-model="scope.row.indexComment"> </el-input>
<el-link v-if="item.prop === 'action'" type="danger" plain size="small"
:underline="false" @click.prevent="deleteIndex(scope.$index)">删除</el-link>
</template>
</el-table-column>
</el-table>
<el-row style="margin-top: 20px">
<el-button @click="addIndex()" link type="primary" icon="plus">添加索引</el-button>
</el-row>
</el-tab-pane>
</el-tabs>
</el-form>
<template #footer>
<el-button :loading="btnloading" @click="submit()" type="primary">保存</el-button>
</template>
</el-dialog>
</div>
</template>
<script lang="ts" setup>
import { watch, toRefs, reactive, ref } from 'vue';
import { TYPE_LIST, CHARACTER_SET_NAME_LIST, COLLATION_SUFFIX_LIST } from './service.ts';
import { ElMessage } from 'element-plus';
import SqlExecBox from './component/SqlExecBox.ts';
const props = defineProps({
visible: {
type: Boolean,
},
title: {
type: String,
},
data: {
type: Object,
},
dbId: {
type: Number,
},
db: {
type: String,
}
})
//定义事件
const emit = defineEmits(['update:visible', 'cancel', 'val-change', 'submit-sql'])
const formRef: any = ref();
const state = reactive({
dialogVisible: false,
btnloading: false,
activeName: '1',
columnTypeList: TYPE_LIST,
indexTypeList: ['BTREE'], // mysql索引类型详解 http://c.biancheng.net/view/7897.html
characterSetNameList: CHARACTER_SET_NAME_LIST,
collationNameList: COLLATION_SUFFIX_LIST,
tableData: {
fields: {
colNames: [
{
prop: 'name',
label: '字段名称',
},
{
prop: 'type',
label: '字段类型',
},
{
prop: 'length',
label: '长度',
},
{
prop: 'value',
label: '默认值',
},
{
prop: 'notNull',
label: '非空',
},
{
prop: 'pri',
label: '主键',
},
{
prop: 'auto_increment',
label: '自增',
},
{
prop: 'remark',
label: '备注',
},
{
prop: 'action',
label: '操作',
},
],
res: [
{
name: '',
type: '',
value: '',
length: '',
notNull: false,
pri: false,
auto_increment: false,
remark: '',
},
],
},
indexs: {
colNames: [
{
prop: 'indexName',
label: '索引名',
},
{
prop: 'columnNames',
label: '列名',
},
{
prop: 'unique',
label: '唯一',
},
{
prop: 'indexType',
label: '类型',
},
{
prop: 'indexComment',
label: '备注',
},
{
prop: 'action',
label: '操作',
},
],
columns: [{ name: '', remark: '' }],
res: [
{
indexName: '',
columnNames: [],
unique: false,
indexType: 'BTREE',
indexComment: '',
},
],
},
characterSet: 'utf8mb4',
collation: 'utf8mb4_general_ci',
tableName: '',
tableComment: '',
height: 550
},
});
const {
dialogVisible,
btnloading,
activeName,
columnTypeList,
indexTypeList,
characterSetNameList,
collationNameList,
tableData,
} = toRefs(state)
watch(props, async (newValue) => {
state.dialogVisible = newValue.visible;
});
const cancel = () => {
emit('update:visible', false);
reset();
};
const addRow = () => {
state.tableData.fields.res.push({
name: '',
type: '',
value: '',
length: '',
notNull: false,
pri: false,
auto_increment: false,
remark: '',
});
};
const addIndex = () => {
state.tableData.indexs.res.push({
indexName: '',
columnNames: [],
unique: false,
indexType: 'BTREE',
indexComment: '',
});
};
const addDefaultRows = () => {
state.tableData.fields.res.push(
{ name: 'id', type: 'bigint', length: '20', value: '', notNull: true, pri: true, auto_increment: true, remark: '主键ID' },
{ name: 'creator_id', type: 'bigint', length: '20', value: '', notNull: true, pri: false, auto_increment: false, remark: '创建人id' },
{ name: 'creator', type: 'varchar', length: '100', value: '', notNull: true, pri: false, auto_increment: false, remark: '创建人姓名' },
{ name: 'creat_time', type: 'datetime', length: '', value: '', notNull: true, pri: false, auto_increment: false, remark: '创建时间' },
{ name: 'updater_id', type: 'bigint', length: '20', value: '', notNull: true, pri: false, auto_increment: false, remark: '修改人id' },
{ name: 'updater', type: 'varchar', length: '100', value: '', notNull: true, pri: false, auto_increment: false, remark: '修改人姓名' },
{ name: 'update_time', type: 'datetime', length: '', value: '', notNull: true, pri: false, auto_increment: false, remark: '修改时间' },
);
};
const deleteRow = (index: any) => {
state.tableData.fields.res.splice(index, 1);
};
const deleteIndex = (index: any) => {
state.tableData.indexs.res.splice(index, 1);
};
const submit = async () => {
let sql = genSql();
if (!sql) {
ElMessage.warning('没有更改');
return;
}
SqlExecBox({
sql: sql,
dbId: props.dbId as any,
db: props.db,
runSuccessCallback: () => {
emit('submit-sql', {tableName: state.tableData.tableName });
// cancel();
},
});
};
/**
* 对比两个数组,取出被修改过的对象数组
* @param oldArr 原对象数组
* @param nowArr 修改后的对象数组
* @param key 标志对象唯一属性
*/
const filterChangedData = (oldArr: object[], nowArr: object[], key: string): { del: any[], add: any[], upd: any[] } => {
let data = {
del: [] as object[], // 删除的数据
add: [] as object[], // 新增的数据
upd: [] as object[] // 修改的数据
}
// 旧数据为空
if (oldArr && Array.isArray(oldArr) && oldArr.length === 0
&& nowArr && Array.isArray(nowArr) && nowArr.length > 0) {
data.add = nowArr;
return data;
}
// 新数据为空
if (nowArr && Array.isArray(nowArr) && nowArr.length === 0
&& oldArr && Array.isArray(oldArr) && oldArr.length > 0) {
data.del = oldArr;
return data;
}
let oldMap = {}, newMap = {};
oldArr.forEach(a => oldMap[a[key]] = a)
nowArr.forEach(a => {
let k = a[key]
newMap[k] = a;
if (!oldMap.hasOwnProperty(k)) {// 新增
data.add.push(a)
}
})
oldArr.forEach(a => {
let k = a[key];
let newData = newMap[k];
if (!newData) { // 删除
data.del.push(a)
} else { // 判断每个字段是否相等,否则为修改
for (let f in a) {
let oldV = a[f]
let newV = newData[f]
if (oldV.toString() !== newV.toString()) {
data.upd.push(newData)
break;
}
}
}
})
return data;
}
const genSql = () => {
const genColumnBasicSql = (cl: any) => {
let val = cl.value ? (cl.value === 'CURRENT_TIMESTAMP' ? cl.value : '\'' + cl.value + '\'') : '';
let defVal = `${val ? ('DEFAULT ' + val) : ''}`;
let length = cl.length ? `(${cl.length})` : '';
return ` ${cl.name} ${cl.type}${length} ${cl.notNull ? 'NOT NULL' : 'NULL'} ${cl.auto_increment ? 'AUTO_INCREMENT' : ''} ${defVal} comment '${cl.remark || ''}' `
}
let data = state.tableData;
// 创建表
if (!props.data?.edit) {
if (state.activeName === '1') {// 创建表结构
let primary_key = '';
let fields: string[] = [];
data.fields.res.forEach((item) => {
fields.push(genColumnBasicSql(item));
if (item.pri) {
primary_key += `${item.name},`;
}
});
return `CREATE TABLE ${data.tableName}
( ${fields.join(',')}
${primary_key ? `, PRIMARY KEY (${primary_key.slice(0, -1)})` : ''}
) ENGINE=InnoDB DEFAULT CHARSET=${data.characterSet} COLLATE =${data.collation} COMMENT='${data.tableComment}';`;
} else if (state.activeName === '2' && data.indexs.res.length > 0) { // 创建索引
let sql = `ALTER TABLE ${data.tableName}`;
state.tableData.indexs.res.forEach(a => {
sql += ` ADD ${a.unique ? 'UNIQUE' : ''} INDEX ${a.indexName}(${a.columnNames.join(',')}) USING ${a.indexType} COMMENT '${a.indexComment}',`;
})
return sql.substring(0, sql.length - 1) + ';'
}
} else { // 修改
let addSql = '', updSql = '', delSql = '';
if (state.activeName === '1') {// 修改列
let changeData = filterChangedData(oldData.fields, state.tableData.fields.res, 'name')
if (changeData.add.length > 0) {
addSql = `ALTER TABLE ${data.tableName}`
changeData.add.forEach(a => {
addSql += ` ADD ${genColumnBasicSql(a)},`
})
addSql = addSql.substring(0, addSql.length - 1)
addSql += ';'
}
if (changeData.upd.length > 0) {
updSql = `ALTER TABLE ${data.tableName}`;
changeData.upd.forEach(a => {
updSql += ` MODIFY ${genColumnBasicSql(a)},`
})
updSql = updSql.substring(0, updSql.length - 1)
updSql += ';'
}
if (changeData.del.length > 0) {
changeData.del.forEach(a => {
delSql += ` ALTER TABLE ${data.tableName} DROP COLUMN ${a.name}; `
})
}
return addSql + updSql + delSql;
} else if (state.activeName === '2') { // 修改索引
let changeData = filterChangedData(oldData.indexs, state.tableData.indexs.res, 'indexName')
// 搜集修改和删除的索引添加到drop index xx
// 收集新增和修改的索引添加到ADD xx
// ALTER TABLE `test1`
// DROP INDEX `test1_name_uindex`,
// DROP INDEX `test1_column_name4_index`,
// ADD UNIQUE INDEX `test1_name_uindex`(`id`) USING BTREE COMMENT 'ASDASD',
// ADD INDEX `111`(`column_name4`) USING BTREE COMMENT 'zasf';
let dropIndexNames: string[] = [];
let addIndexs: any[] = [];
if (changeData.upd.length > 0) {
changeData.upd.forEach(a => {
dropIndexNames.push(a.indexName)
addIndexs.push(a)
})
}
if (changeData.del.length > 0) {
changeData.del.forEach(a => {
dropIndexNames.push(a.indexName)
})
}
if (changeData.add.length > 0) {
changeData.add.forEach(a => {
addIndexs.push(a)
})
}
if (dropIndexNames.length > 0 || addIndexs.length > 0) {
let sql = `ALTER TABLE ${data.tableName} `;
if (dropIndexNames.length > 0) {
dropIndexNames.forEach(a => {
sql += `DROP INDEX ${a},`
})
sql = sql.substring(0, sql.length - 1)
}
if (addIndexs.length > 0) {
if (dropIndexNames.length > 0){
sql += ','
}
addIndexs.forEach(a => {
sql += ` ADD ${a.unique ? 'UNIQUE' : ''} INDEX ${a.indexName}(${a.columnNames.join(',')}) USING ${a.indexType} COMMENT '${a.indexComment}',`;
})
sql = sql.substring(0, sql.length - 1)
}
return sql;
}
}
}
};
const reset = () => {
state.activeName = '1'
formRef.value.resetFields()
state.tableData.tableName = ''
state.tableData.tableComment = ''
state.tableData.fields.res = [
{
name: '',
type: '',
value: '',
length: '',
notNull: false,
pri: false,
auto_increment: false,
remark: '',
},
];
state.tableData.indexs.res = [{
indexName: '',
columnNames: [],
unique: false,
indexType: 'BTREE',
indexComment: '',
},]
};
const oldData = { indexs: [] as any[], fields: [] as any[] }
watch(() => props.data, (newValue: any) => {
const { row, indexs, columns } = newValue;
// 回显表名表注释
state.tableData.tableName = row.tableName
state.tableData.tableComment = row.tableComment
// 回显列
if (columns && Array.isArray(columns) && columns.length > 0) {
oldData.fields = [];
state.tableData.fields.res = [];
// 索引列下拉选
state.tableData.indexs.columns = [];
columns.forEach(a => {
let typeObj = a.columnType.replace(')', '').split('(')
let type = typeObj[0];
let length = typeObj.length > 1 && typeObj[1] || '';
let data = {
name: a.columnName,
type,
value: a.columnDefault || '',
length,
notNull: a.nullable !== 'YES',
pri: a.columnKey === 'PRI',
auto_increment: a.extra?.indexOf('auto_increment') > -1,
remark: a.columnComment,
};
state.tableData.fields.res.push(data)
oldData.fields.push(JSON.parse(JSON.stringify(data)))
// 索引字段下拉选项
state.tableData.indexs.columns.push({ name: a.columnName, remark: a.columnComment })
})
}
// 回显索引
if (indexs && Array.isArray(indexs) && indexs.length > 0) {
oldData.indexs = [];
state.tableData.indexs.res = [];
// 索引过滤掉主键
indexs.filter(a => a.indexName !== "PRIMARY").forEach(a => {
let data = {
indexName: a.indexName,
columnNames: a.columnName?.split(','),
unique: a.nonUnique === 0 || false,
indexType: a.indexType,
indexComment: a.indexComment,
}
state.tableData.indexs.res.push(data)
oldData.indexs.push(JSON.parse(JSON.stringify(data)))
})
}
})
</script>