mirror of
https://gitee.com/dromara/mayfly-go
synced 2025-11-03 07:50:25 +08:00
734 lines
24 KiB
TypeScript
734 lines
24 KiB
TypeScript
/* eslint-disable no-unused-vars */
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import { dbApi } from './api';
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import { getTextWidth } from '@/common/utils/string';
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import SqlExecBox from './component/sqleditor/SqlExecBox';
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import * as monaco from 'monaco-editor/esm/vs/editor/editor.api';
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import { editor, languages, Position } from 'monaco-editor';
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import { registerCompletionItemProvider } from '@/components/monaco/completionItemProvider';
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import { DbDialect, EditorCompletionItem, getDbDialect } from './dialect';
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const dbInstCache: Map<number, DbInst> = new Map();
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export class DbInst {
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/**
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* 标签路径
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*/
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tagPath: string;
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/**
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* 实例id
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*/
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id: number;
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/**
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* ip:port
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*/
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host: string;
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/**
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* 实例名
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*/
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name: string;
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/**
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* 数据库类型, mysql postgres
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*/
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type: string;
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/**
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* dbName -> db
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*/
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dbs: Map<string, Db> = new Map();
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/** 数据库，多个用空格隔开 */
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databases: string[];
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/**
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* 默认查询分页数量
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*/
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static DefaultLimit = 25;
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/**
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* 获取指定数据库实例，若不存在则新建并缓存
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* @param dbName 数据库名
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* @returns db实例
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*/
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getDb(dbName: string) {
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if (!dbName) {
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throw new Error('dbName不能为空');
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}
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let db = this.dbs.get(dbName);
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if (db) {
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return db;
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}
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console.info(`new db -> dbId: ${this.id}, dbName: ${dbName}`);
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db = new Db();
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db.name = dbName;
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this.dbs.set(dbName, db);
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return db;
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}
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/**
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* 加载数据库表信息
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* @param dbName 数据库名
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* @param reload 是否重新请求接口获取数据
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* @returns 表信息
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*/
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async loadTables(dbName: string, reload?: boolean) {
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const db = this.getDb(dbName);
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// 优先从 table map中获取
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let tables = db.tables;
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if (!reload && tables) {
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return tables;
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}
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// 重置列信息缓存与表提示信息
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db.columnsMap?.clear();
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db.tableHints = null;
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console.log(`load tables -> dbName: ${dbName}`);
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tables = await dbApi.tableInfos.request({ id: this.id, db: dbName });
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db.tables = tables;
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return tables;
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}
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async loadTableSuggestions(dbDialect: DbDialect, dbName: string, range: any, reload?: boolean) {
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const tables = await this.loadTables(dbName, reload);
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// 表名联想
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let suggestions: languages.CompletionItem[] = [];
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tables?.forEach((tableMeta: any, index: any) => {
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const { tableName, tableComment } = tableMeta;
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suggestions.push({
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label: {
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label: tableName + ' - ' + tableComment,
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description: 'table',
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},
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kind: monaco.languages.CompletionItemKind.File,
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detail: tableComment,
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insertText: dbDialect.quoteIdentifier(tableName) + ' ',
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range,
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sortText: 300 + index + '',
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});
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});
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return { suggestions };
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}
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/** 加载列信息提示 */
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async loadTableColumnSuggestions(dbDialect: DbDialect, db: string, tableName: string, range: any) {
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let dbHits = await this.loadDbHints(db);
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let columns = dbHits[tableName];
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let suggestions: languages.CompletionItem[] = [];
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columns?.forEach((a: string, index: any) => {
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// 字段数据格式 字段名 字段注释， 如： create_time [datetime][创建时间]
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const nameAndComment = a.split(' ');
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const fieldName = nameAndComment[0];
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suggestions.push({
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label: {
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label: a,
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description: 'column',
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},
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kind: monaco.languages.CompletionItemKind.Property,
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detail: '', // 不显示detail, 否则选中时备注等会被遮挡
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insertText: dbDialect.quoteIdentifier(fieldName) + ' ', // create_time
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range,
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sortText: 100 + index + '', // 使用表字段声明顺序排序,排序需为字符串类型
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});
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});
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return { suggestions };
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}
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/**
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* 获取表的所有列信息
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* @param dbName 数据库名
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* @param table 表名
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*/
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async loadColumns(dbName: string, table: string) {
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const db = this.getDb(dbName);
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// 优先从 table map中获取
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let columns = db.getColumns(table);
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if (columns) {
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return columns;
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}
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console.log(`load columns -> dbName: ${dbName}, table: ${table}`);
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columns = await dbApi.columnMetadata.request({
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id: this.id,
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db: dbName,
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tableName: table,
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});
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db.columnsMap.set(table, columns);
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return columns;
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}
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/**
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* 获取指定表的指定信息
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* @param table 表名
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*/
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async loadTableColumn(dbName: string, table: string, columnName?: string) {
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// 确保该表的列信息都已加载
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await this.loadColumns(dbName, table);
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return this.getDb(dbName).getColumn(table, columnName);
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}
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/**
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* 获取库信息提示
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*/
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async loadDbHints(dbName: string) {
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const db = this.getDb(dbName);
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if (db.tableHints) {
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return db.tableHints;
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}
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console.log(`load db-hits -> dbName: ${dbName}`);
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const hits = await dbApi.hintTables.request({ id: this.id, db: db.name });
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db.tableHints = hits;
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return hits;
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}
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/**
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* 执行sql
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*
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* @param sql sql
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* @param remark 执行备注
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*/
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async runSql(dbName: string, sql: string, remark: string = '') {
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return await dbApi.sqlExec.request({
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id: this.id,
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db: dbName,
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sql: sql.trim(),
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remark,
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});
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}
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/**
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* 执行sql(可取消的)
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*
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* @param sql sql
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* @param remark 执行备注
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*/
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execSql(dbName: string, sql: string, remark: string = '') {
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let dbId = this.id;
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return dbApi.sqlExec.useApi({
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id: dbId,
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db: dbName,
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sql: sql.trim(),
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remark,
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});
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}
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/**
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* 获取count sql
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* @param table 表名
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* @param condition 条件
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* @returns count sql
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*/
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getDefaultCountSql = (table: string, condition?: string) => {
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return `SELECT COUNT(*) count FROM ${this.wrapName(table)} ${condition ? 'WHERE ' + condition : ''} limit 1`;
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};
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// 获取指定表的默认查询sql
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getDefaultSelectSql(table: string, condition: string, orderBy: string, pageNum: number, limit: number = DbInst.DefaultLimit) {
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return getDbDialect(this.type).getDefaultSelectSql(table, condition, orderBy, pageNum, limit);
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}
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/**
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* 生成指定数据的insert语句
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* @param dbName 数据库名
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* @param table 表名
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* @param datas 要生成的数据
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*/
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async genInsertSql(dbName: string, table: string, datas: any[]) {
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if (!datas) {
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return '';
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}
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const columns = await this.loadColumns(dbName, table);
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const sqls = [];
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for (let data of datas) {
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let colNames = [];
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let values = [];
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for (let column of columns) {
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const colName = column.columnName;
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colNames.push(this.wrapName(colName));
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values.push(DbInst.wrapValueByType(data[colName]));
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}
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sqls.push(`INSERT INTO ${this.wrapName(table)} (${colNames.join(', ')}) VALUES(${values.join(', ')})`);
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}
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return sqls.join(';\n') + ';';
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}
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/**
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* 生成根据主键删除的sql语句
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* @param table 表名
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* @param datas 要删除的记录
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*/
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async genDeleteByPrimaryKeysSql(db: string, table: string, datas: any[]) {
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const primaryKey = await this.loadTableColumn(db, table);
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const primaryKeyColumnName = primaryKey.columnName;
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const ids = datas.map((d: any) => `${DbInst.wrapColumnValue(primaryKey.columnType, d[primaryKeyColumnName])}`).join(',');
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return `DELETE FROM ${this.wrapName(table)} WHERE ${this.wrapName(primaryKeyColumnName)} IN (${ids})`;
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}
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/*
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* 弹框提示是否执行sql
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*/
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promptExeSql = (db: string, sql: string, cancelFunc: any = null, successFunc: any = null) => {
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SqlExecBox({
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sql,
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dbId: this.id,
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db,
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runSuccessCallback: successFunc,
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cancelCallback: cancelFunc,
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});
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};
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/**
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* 包裹数据库表名、字段名等，避免使用关键字为字段名或表名时报错
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* @param table
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* @param condition
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* @returns
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*/
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wrapName = (name: string) => {
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return getDbDialect(this.type).quoteIdentifier(name);
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};
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/**
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* 获取或新建dbInst，如果缓存中不存在则新建，否则直接返回
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* @param inst 数据库实例，后端返回的列表接口中的信息
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* @returns DbInst
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*/
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static getOrNewInst(inst: any) {
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if (!inst) {
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throw new Error('inst不能为空');
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}
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let dbInst = dbInstCache.get(inst.id);
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if (dbInst) {
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return dbInst;
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}
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console.info(`new dbInst: ${inst.id}, tagPath: ${inst.tagPath}`);
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dbInst = new DbInst();
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dbInst.tagPath = inst.tagPath;
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dbInst.id = inst.id;
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dbInst.host = inst.host;
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dbInst.name = inst.name;
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dbInst.type = inst.type;
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dbInst.databases = inst.databases;
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dbInstCache.set(dbInst.id, dbInst);
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return dbInst;
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}
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/**
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* 获取数据库实例id，若不存在，则新建一个并缓存
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* @param dbId 数据库实例id
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* @param dbType 第一次获取时为必传项，即第一次创建时
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* @returns 数据库实例
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*/
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static getInst(dbId?: number): DbInst {
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if (!dbId) {
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throw new Error('dbId不能为空');
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}
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let dbInst = dbInstCache.get(dbId);
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if (dbInst) {
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return dbInst;
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}
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throw new Error('dbInst不存在! 请在合适调用点使用DbInst.newInst()新建该实例');
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}
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/**
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* 清空所有实例缓存信息
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*/
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static clearAll() {
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dbInstCache.clear();
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}
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/**
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* 根据返回值包装值，若值为字符串类型则添加''
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* @param val 值
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* @returns 包装后的值
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*/
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static wrapValueByType = (val: any) => {
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if (val == null) {
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return 'NULL';
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}
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if (typeof val == 'number') {
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return val;
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}
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return `'${val}'`;
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};
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/**
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* 根据字段类型包装字段值，如为字符串等则添加‘’，数字类型则直接返回即可
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*/
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static wrapColumnValue(columnType: string, value: any) {
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if (this.isNumber(columnType)) {
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return value;
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}
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return `'${value}'`;
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}
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/**
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* 判断字段类型是否为数字类型
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* @param columnType 字段类型
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* @returns
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*/
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static isNumber(columnType: string) {
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return columnType.match(/int|double|float|number|decimal|byte|bit/gi);
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}
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/**
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*
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* @param str 字符串
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* @param tableData 表数据
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* @param flag 标志
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* @returns 列宽度
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*/
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static flexColumnWidth = (prop: any, tableData: any) => {
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if (!prop || !prop.length || prop.length === 0 || prop === undefined) {
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return;
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}
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// 获取列名称的长度 加上排序图标长度、abc为字段类型简称占位符
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const columnWidth: number = getTextWidth(prop + 'abc') + 23;
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// prop为该列的字段名(传字符串);tableData为该表格的数据源(传变量);
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if (!tableData || !tableData.length || tableData.length === 0 || tableData === undefined) {
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return columnWidth;
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}
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// 获取该列中最长的数据(内容)
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let maxWidthText = '';
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// 获取该列中最长的数据(内容)
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for (let i = 0; i < tableData.length; i++) {
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let nowValue = tableData[i][prop];
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if (!nowValue) {
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continue;
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}
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// 转为字符串比较长度
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let nowText = nowValue + '';
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if (nowText.length > maxWidthText.length) {
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maxWidthText = nowText;
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}
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}
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const contentWidth: number = getTextWidth(maxWidthText) + 15;
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const flexWidth: number = contentWidth > columnWidth ? contentWidth : columnWidth;
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return flexWidth > 500 ? 500 : flexWidth;
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};
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}
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/**
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* 数据库实例信息
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*/
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class Db {
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name: string; // 库名
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tables: []; // 数据库实例表信息
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columnsMap: Map<string, any> = new Map(); // table -> columns
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tableHints: any = null; // 提示词
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/**
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* 获取指定表列信息（前提需要dbInst.loadColumns）
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* @param table 表名
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*/
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getColumns(table: string) {
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return this.columnsMap.get(table);
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}
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/**
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* 获取指定表中的指定列名信息，若列名为空则默认返回主键
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* @param table 表名
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* @param columnName 列名
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*/
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getColumn(table: string, columnName: string = '') {
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const cols = this.getColumns(table);
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if (!columnName) {
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const col = cols.find((c: any) => c.columnKey == 'PRI');
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return col || cols[0];
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}
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return cols.find((c: any) => c.columnName == columnName);
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}
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}
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export enum TabType {
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/**
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* 表数据
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*/
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TableData,
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/**
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* 查询框
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*/
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Query,
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/**
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* 表操作
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*/
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TablesOp,
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}
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export class TabInfo {
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label: string;
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/**
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* tab唯一key。与name都一致
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*/
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key: string;
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/**
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* 菜单树节点key
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*/
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treeNodeKey: string;
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/**
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* 数据库实例id
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*/
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dbId: number;
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/**
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* 库名
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*/
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db: string = '';
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/**
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* tab 类型
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*/
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type: TabType;
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/**
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* tab需要的其他信息
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*/
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params: any;
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getNowDbInst() {
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return DbInst.getInst(this.dbId);
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}
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getNowDb() {
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return this.getNowDbInst().getDb(this.db);
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}
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}
|
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|
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function registerCompletions(
|
||
completions: EditorCompletionItem[],
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||
suggestions: languages.CompletionItem[],
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||
kind: monaco.languages.CompletionItemKind,
|
||
range: any
|
||
) {
|
||
// mysql关键字
|
||
completions.forEach((item: EditorCompletionItem) => {
|
||
let { label, insertText, description } = item;
|
||
suggestions.push({
|
||
label: { label, description },
|
||
kind,
|
||
insertText: insertText || label,
|
||
range,
|
||
});
|
||
});
|
||
}
|
||
|
||
/**
|
||
* 注册数据库表、字段等信息提示
|
||
*
|
||
* @param dbId 数据库id
|
||
* @param db 库名
|
||
* @param dbs 该库所有库名
|
||
* @param dbType 数据库类型
|
||
*/
|
||
export function registerDbCompletionItemProvider(dbId: number, db: string, dbs: any[] = [], dbType: string) {
|
||
let dbDialect = getDbDialect(dbType);
|
||
let dbDialectInfo = dbDialect.getInfo();
|
||
let { keywords, operators, functions, variables } = dbDialectInfo.editorCompletions;
|
||
registerCompletionItemProvider('sql', {
|
||
triggerCharacters: ['.', ' '],
|
||
provideCompletionItems: async (model: editor.ITextModel, position: Position): Promise<languages.CompletionList | null | undefined> => {
|
||
let word = model.getWordUntilPosition(position);
|
||
const dbInst = DbInst.getInst(dbId);
|
||
const { lineNumber, column } = position;
|
||
const { startColumn, endColumn } = word;
|
||
|
||
// 当前行文本
|
||
let lineContent = model.getLineContent(lineNumber);
|
||
// 注释行不需要代码提示
|
||
if (lineContent.startsWith('--')) {
|
||
return { suggestions: [] };
|
||
}
|
||
|
||
let range = {
|
||
startLineNumber: lineNumber,
|
||
endLineNumber: lineNumber,
|
||
startColumn,
|
||
endColumn,
|
||
};
|
||
|
||
// 光标前文本
|
||
const textBeforePointer = model.getValueInRange({
|
||
startLineNumber: lineNumber,
|
||
startColumn: 0,
|
||
endLineNumber: lineNumber,
|
||
endColumn: column,
|
||
});
|
||
// // const nextTokens = textAfterPointer.trim().split(/\s+/)
|
||
// // const nextToken = nextTokens[0].toLowerCase()
|
||
const tokens = textBeforePointer.trim().split(/\s+/);
|
||
let lastToken = tokens[tokens.length - 1].toLowerCase();
|
||
const secondToken = (tokens.length > 2 && tokens[tokens.length - 2].toLowerCase()) || '';
|
||
|
||
// 获取光标所在行之前的所有文本内容
|
||
const textBeforeCursor = model.getValueInRange({
|
||
startLineNumber: 1,
|
||
startColumn: 0,
|
||
endLineNumber: lineNumber,
|
||
endColumn: column,
|
||
});
|
||
|
||
// 获取光标所在行之后的所有文本内容
|
||
const textAfterCursor = model.getValueInRange({
|
||
startLineNumber: lineNumber,
|
||
startColumn: column,
|
||
endLineNumber: model.getLineCount(),
|
||
endColumn: model.getLineMaxColumn(model.getLineCount()),
|
||
});
|
||
|
||
// 检测光标前后文本中的分号位置，确定完整 SQL 语句的范围
|
||
const start = textBeforeCursor.lastIndexOf(';');
|
||
const end = textAfterCursor.indexOf(';');
|
||
|
||
let sqlStatement = '';
|
||
// 如果光标前后都有分号，则取二者之间的文本作为完整 SQL 语句
|
||
if (start !== -1 && end !== -1) {
|
||
sqlStatement = textBeforeCursor.substring(start + 1) + textAfterCursor.substring(0, end);
|
||
}
|
||
// 如果只有光标前面有分号，则取分号后的文本作为完整 SQL 语句
|
||
else if (start !== -1) {
|
||
sqlStatement = textBeforeCursor.substring(start + 1) + textAfterCursor;
|
||
}
|
||
// 如果只有光标后面有分号，则取分号前的文本作为完整 SQL 语句
|
||
else if (end !== -1) {
|
||
sqlStatement = textBeforeCursor + textAfterCursor.substring(0, end);
|
||
}
|
||
// 如果光标前后都没有分号，则取整个文本作为完整 SQL 语句
|
||
else {
|
||
sqlStatement = textBeforeCursor + textAfterCursor;
|
||
}
|
||
|
||
let suggestions: languages.CompletionItem[] = [];
|
||
|
||
// 库名提示
|
||
if (dbs && dbs.length > 0) {
|
||
dbs.forEach((a: any) => {
|
||
suggestions.push({
|
||
label: {
|
||
label: a,
|
||
description: 'schema',
|
||
},
|
||
kind: monaco.languages.CompletionItemKind.Folder,
|
||
insertText: dbDialect.quoteIdentifier(a),
|
||
range,
|
||
});
|
||
});
|
||
}
|
||
|
||
let alias = '';
|
||
if (lastToken.indexOf('.') > -1 || secondToken.indexOf('.') > -1) {
|
||
// 如果是.触发代码提示，则进行【 库.表名联想 】 或 【 表别名.表字段联想 】
|
||
alias = lastToken.substring(0, lastToken.lastIndexOf('.'));
|
||
if (lastToken.trim().startsWith('.')) {
|
||
alias = secondToken;
|
||
}
|
||
if (!alias && secondToken.indexOf('.') > -1) {
|
||
alias = secondToken.substring(secondToken.indexOf('.') + 1);
|
||
}
|
||
|
||
// 如果字符串粘连起了如:'a.creator,a.',需要重新取出别名
|
||
let aliasArr = lastToken.split(',');
|
||
if (aliasArr.length > 1) {
|
||
lastToken = aliasArr[aliasArr.length - 1];
|
||
alias = lastToken.substring(0, lastToken.lastIndexOf('.'));
|
||
if (lastToken.trim().startsWith('.')) {
|
||
alias = secondToken;
|
||
}
|
||
}
|
||
|
||
// 如果是【库.表名联想】.前的字符串是库名
|
||
if (dbs?.filter((a) => alias === a?.toLowerCase()).length > 0) {
|
||
let dbName = alias;
|
||
if (db.indexOf('/') > 0) {
|
||
dbName = db.substring(0, db.indexOf('/') + 1) + alias;
|
||
}
|
||
return await dbInst.loadTableSuggestions(dbDialect, dbName, range);
|
||
}
|
||
// 表下列名联想 .前的字符串是表名或表别名
|
||
const sqlInfo = getTableName4SqlCtx(sqlStatement, alias, db);
|
||
// 提出到表名，则将表对应的字段也添加进提示建议
|
||
if (sqlInfo) {
|
||
return await dbInst.loadTableColumnSuggestions(dbDialect, sqlInfo.db, sqlInfo.tableName, range);
|
||
}
|
||
}
|
||
|
||
// 空格触发也会提示字段信息
|
||
const sqlInfo = getTableName4SqlCtx(sqlStatement, alias, db);
|
||
if (sqlInfo) {
|
||
const columnSuggestions = await dbInst.loadTableColumnSuggestions(dbDialect, sqlInfo.db, sqlInfo.tableName, range);
|
||
suggestions.push(...columnSuggestions.suggestions);
|
||
}
|
||
|
||
// 当前库的表名联想
|
||
const tables = await dbInst.loadTables(db);
|
||
tables.forEach((tableMeta: any, index: any) => {
|
||
const { tableName, tableComment } = tableMeta;
|
||
suggestions.push({
|
||
label: {
|
||
label: tableName + ' - ' + tableComment,
|
||
description: 'table',
|
||
},
|
||
kind: monaco.languages.CompletionItemKind.File,
|
||
detail: tableComment,
|
||
insertText: dbDialect.quoteIdentifier(tableName) + ' ',
|
||
range,
|
||
sortText: 300 + index + '',
|
||
});
|
||
});
|
||
|
||
registerCompletions(keywords, suggestions, monaco.languages.CompletionItemKind.Keyword, range);
|
||
registerCompletions(operators, suggestions, monaco.languages.CompletionItemKind.Operator, range);
|
||
registerCompletions(functions, suggestions, monaco.languages.CompletionItemKind.Function, range);
|
||
registerCompletions(variables, suggestions, monaco.languages.CompletionItemKind.Variable, range);
|
||
|
||
// 默认提示
|
||
return {
|
||
suggestions: suggestions,
|
||
};
|
||
},
|
||
});
|
||
}
|
||
|
||
function getTableName4SqlCtx(sql: string, alias: string = '', defaultDb: string): { tableName: string; tableAlias: string; db: string } | undefined {
|
||
// 去除多余的换行、空格和制表符
|
||
sql = sql.replace(/[\r\n\s\t]+/g, ' ');
|
||
|
||
// 提取所有可能的表名和别名
|
||
const regex = /(?:FROM|JOIN|UPDATE)\s+(\S+)\s+(?:AS\s+)?(\S+)/gi;
|
||
let matches;
|
||
const tables = [];
|
||
|
||
// 使用正则表达式匹配所有的表和别名
|
||
while ((matches = regex.exec(sql)) !== null) {
|
||
let tableName = matches[1].replace(/[`"]/g, '');
|
||
let db = defaultDb;
|
||
if (tableName.indexOf('.') >= 0) {
|
||
let info = tableName.split('.');
|
||
db = info[0];
|
||
if (defaultDb.indexOf('/') > 0) {
|
||
db = defaultDb.substring(0, defaultDb.indexOf('/') + 1) + db;
|
||
}
|
||
tableName = info[1];
|
||
}
|
||
const tableAlias = matches[2] ? matches[2].replace(/[`"]/g, '') : tableName;
|
||
tables.push({ tableName, tableAlias, db });
|
||
}
|
||
|
||
if (alias) {
|
||
// 如果指定了别名参数，则返回对应的表名
|
||
return tables.find((t) => t.tableAlias === alias);
|
||
} else {
|
||
// 如果未指定别名参数，则返回第一个表名
|
||
return tables.length > 0 ? tables[0] : undefined;
|
||
}
|
||
}
|