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"https://registry.npmjs.org/split2/-/split2-4.1.0.tgz", + "integrity": "sha512-VBiJxFkxiXRlUIeyMQi8s4hgvKCSjtknJv/LVYbrgALPwf5zSKmEwV9Lst25AkvMDnvxODugjdl6KZgwKM1WYQ==", + "engines": { + "node": ">= 10.x" + } + }, "node_modules/typescript": { "version": "4.9.4", "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.4.tgz", @@ -504,6 +647,14 @@ "engines": { "node": ">=4.2.0" } + }, + "node_modules/xtend": { + "version": "4.0.2", + "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz", + "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==", + "engines": { + "node": ">=0.4" + } } } } diff --git a/package.json b/package.json index 27be79e..8abae43 100644 --- a/package.json +++ b/package.json @@ -18,13 +18,15 @@ "author": "jusax23", "license": "UNLICENSED", "dependencies": { - "mariadb": "^3.0.2" + "mariadb": "^3.0.2", + "pg": "^8.9.0" }, "engines": { "node": ">= 14" }, "devDependencies": { "@types/node": "^18.11.18", + "@types/pg": "^8.6.6", "esbuild": "^0.17.4", "typescript": "^4.9.4" } diff --git a/readme.md b/readme.md index 2e2ee40..47aceb6 100644 --- a/readme.md +++ b/readme.md @@ -12,6 +12,7 @@ Features: - [x] create Schema - [x] remove unused Schema - [x] joins +- [x] table alias - [ ] change Schema - [ ] Key-Value Store Shortcut - [ ] Views @@ -103,7 +104,7 @@ let res = await select([Table2.AttrName2], Table1) .query(db); ``` -Joins: +_Joins_: ```javascript import { INT, onAction } from "dblang" @@ -124,6 +125,12 @@ let res = await select([TableA.A1, TableB.B1], innerJoinOn(eq(TableA.A1, Tableb. ``` See: [Joins](#joins) +_Aliases_: +```javascript +const alias1 = TableA.createAlias("alias1"); +//alias1 can be used like a Table in select Statements. +``` + #### Insert: ```javascript import { select } from "dblang" diff --git a/src/alias.ts b/src/alias.ts new file mode 100644 index 0000000..e588614 --- /dev/null +++ b/src/alias.ts @@ -0,0 +1,54 @@ +import { Attribute, DB, Table } from "./db" +import { Handler } from "./defaultHandler"; + +export class AttributeAlias { + name: string; + nameO: string; + table: TableAlias; + attr: Attribute; + constructor(attr: Attribute, table: TableAlias) { + this.name = attr.name; + this.nameO = attr.nameO; + this.attr = attr; + this.table = table; + } + serialize(handler: Handler) { + return handler.builders.escapeID(this.name); + } + toString(handler: Handler = this.table.dbLangDatabaseInstance.getHandler()) { + return this.table.serialize(handler) + "." + this.serialize(handler); + } + toStringFunc(handler: Handler) { + return this.table.serialize(handler) + "(" + this.serialize(handler) + ")"; + } +} + +export class TableAlias { + dbLangTableName: string; + dbLangTableAttributes: { [key: string]: AttributeAlias; } = {}; + dbLangDatabaseInstance: DB; + dbLangTableInstance: Table; + [key: string]: AttributeAlias | any; + constructor(name: string, table: Table) { + this.dbLangTableName = name; + this.dbLangTableInstance = table; + this.dbLangDatabaseInstance = table.dbLangDatabaseInstance; + let keys = Object.keys(table.dbLangTableAttributes); + for (let i = 0; i < keys.length; i++) { + const a = table.dbLangTableAttributes[keys[i]]; + let attrAlias = new AttributeAlias(a, this); + this[a.name] = attrAlias; + this[a.nameO] = attrAlias; + this.dbLangTableAttributes[a.name] = attrAlias; + } + } + serializeAlias(hander: Handler) { + return this.dbLangTableInstance.serialize(hander) + " " + this.toString(hander); + } + serialize(handler: Handler) { + return this.toString(handler); + } + toString(handler: Handler = this.dbLangDatabaseInstance.getHandler()) { + return handler.builders.escapeID(this.dbLangTableName); + } +} \ No newline at end of file diff --git a/src/db.ts b/src/db.ts index bc3cb92..f69447d 100644 --- a/src/db.ts +++ b/src/db.ts @@ -2,22 +2,41 @@ import mariadb from 'mariadb'; import { checkConstraint, Constraint, Datatype, foreignConstraint, uniqueConstraint } from './dbStructure'; import { Handler } from './defaultHandler'; import { Query } from './query'; -import { attributeSettings, extendedAttributeSettings, onAction } from './types'; +import { attributeSettings, extendedAttributeSettings, onAction, dbType } from './types'; +import { TableAlias } from "./alias" +//import { postgresHandler } from "./postgresHandler" export class DB { tables: Table[] = []; handler: Handler; name: string; - pool: mariadb.Pool; - constructor({ host, user, password, database, connectionLimit = 5 }: { host: string, user: string, password: string, database: string, connectionLimit: number }) { - this.pool = mariadb.createPool({ host, user, password, database, connectionLimit, multipleStatements: true }); - this.handler = new Handler(); + type: dbType; + mariaPool!: mariadb.Pool; + //pgPool!: pg.Pool; + constructor({ host, user, password, database, connectionLimit = 5, databaseType = dbType.mariadb }: { host: string, user: string, password: string, database: string, connectionLimit: number, databaseType: dbType }) { + this.type = databaseType; + if (databaseType == dbType.mariadb) { + this.mariaPool = mariadb.createPool({ host, user, password, database, connectionLimit, multipleStatements: true }); + this.handler = new Handler(this); + } + /*else if (databaseType == dbType.postgres) { + this.pgPool = new pg.Pool({ host, user, password, max: connectionLimit, database, idleTimeoutMillis: 30000, connectionTimeoutMillis: 2000 }); + this.handler = new postgresHandler(this); + }*/ + else throw new Error("Unsuported Database type!"); + this.name = database; } async query(query: Query) { - //console.log(query); - return await this.pool.query(query); + console.log(query); + if (this.type == dbType.mariadb) return await this.mariaPool.query(query); + /*else if (this.type == dbType.postgres) { + let res = await this.pgPool.query(query.sql, query.values); + console.log([...res.rows]); + return res.rows; + }*/ + else throw new Error("Invalid Database Type!"); } getHandler() { return this.handler; @@ -26,9 +45,6 @@ export class DB { async sync(force = false) { let handler = this.getHandler(); await handler.syncDB(this, handler, force); - //this.tables.forEach(t=>{ - // console.log(handler.builders.query(handler.querys.create(handler,t))); - //}) } newTable(name: string) { @@ -42,17 +58,20 @@ export class DB { return null; } async close() { - if (this.pool) await this.pool.end(); + if (this.type == dbType.mariadb && this.mariaPool) await this.mariaPool.end(); + //if (this.type == dbType.postgres && this.pgPool) await this.pgPool.end(); } } export class Attribute { name: string; + nameO: string; table: Table; ops: attributeSettings; type: Datatype; - constructor(name: string, table: Table, type: Datatype, ops: attributeSettings) { + constructor(name: string, nameO: string, table: Table, type: Datatype, ops: attributeSettings) { this.name = name.toLowerCase(); + this.nameO = nameO; this.type = type; this.table = table; this.ops = ops; @@ -117,9 +136,9 @@ export class Table { addAttribute(name: string, type: Datatype, ops: attributeSettings = {}, noErrorOnNameConflict = false) { let lowName = name.toLowerCase(); if (this.dbLangTableAttributes[lowName] != null) throw new Error("You are tring to create an Attribute twise!"); - let attr = new Attribute(lowName, this, type, ops); + let attr = new Attribute(lowName, name, this, type, ops); this.dbLangTableAttributes[lowName] = attr; - if (["serialize", "toString", "addAttribute", "dbLangTableName", "dbLangTableAttributes", "dbLangDatabaseInstance", "addConstraint", "addAttributes"].includes(lowName)) { + if (["serialize", "toString", "addAttribute", "dbLangTableName", "dbLangTableAttributes", "dbLangDatabaseInstance", "addConstraint", "addAttributes", "createAlias"].includes(lowName)) { if (!noErrorOnNameConflict) throw new Error("You cannot name Attribute like Methode of this Table!"); } else { this[lowName] = attr; @@ -136,7 +155,11 @@ export class Table { c.check(this); this.dbLangConstrains.push(c); } + createAlias(name: string) { + return new TableAlias(name, this); + } } export * from './funcs'; -export { onAction }; \ No newline at end of file +export { onAction }; +export { dbType as databaseType } \ No newline at end of file diff --git a/src/dbStructure.ts b/src/dbStructure.ts index 1ca68d8..26de25e 100644 --- a/src/dbStructure.ts +++ b/src/dbStructure.ts @@ -102,7 +102,6 @@ export class joinCross implements Joins{ export interface Constraint { name: string; - serialize(handler: Handler): QueryBuilder; uses(attr: Attribute): boolean; check(table: Table): boolean | string; } @@ -120,9 +119,6 @@ export class checkConstraint implements Constraint { uses(attr: Attribute): boolean { throw new Error("Method not implemented."); } - serialize(handler: Handler): QueryBuilder { - throw new Error("Method not implemented."); - } } export class uniqueConstraint implements Constraint { @@ -142,10 +138,6 @@ export class uniqueConstraint implements Constraint { uses(attr: Attribute): boolean { return this.attrs.includes(attr); } - serialize(handler: Handler): QueryBuilder { - throw new Error("Method not implemented."); - } - } export class foreignConstraint implements Constraint { @@ -161,9 +153,6 @@ export class foreignConstraint implements Constraint { this.onUpdate = onUpdate; this.onDelete = onDelete; } - serialize(handler: Handler): QueryBuilder { - throw new Error("Method not implemented."); - } uses(attr: Attribute): boolean { throw new Error("Method not implemented."); } diff --git a/src/defaultHandler.ts b/src/defaultHandler.ts index 25bc8b1..81398e1 100644 --- a/src/defaultHandler.ts +++ b/src/defaultHandler.ts @@ -1,25 +1,21 @@ +import { AttributeAlias, TableAlias } from "./alias"; import { Attribute, DB, Table } from "./db" import { Aggregation, checkConstraint, joinCross, Datatype, foreignConstraint, Modifier, joinNatural, onJoin, uniqueConstraint, usingJoin } from "./dbStructure" import { insertQuery, Query, QueryBuilder, removeQuery, selectQuery, updateQuery } from "./query" import { allModifierInput, joinType, onAction, primaryData } from "./types" export class Handler { + db: DB; + constructor(db: DB) { + this.db = db; + } async syncDB(db: DB, handler: Handler, deleteInDB: boolean = false) { - let gd = new QueryBuilder(); - gd.addCode(`SELECT * FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE where CONSTRAINT_SCHEMA = `); - gd.addInjection(db.name); - gd.addCode(` or TABLE_SCHEMA = `); - gd.addInjection(db.name); - gd.addCode(`;select * from information_schema.table_constraints where CONSTRAINT_SCHEMA = `); - gd.addInjection(db.name) - gd.addCode(` or TABLE_SCHEMA = `); - gd.addInjection(db.name); - - let [key, constraints] = await db.query(handler.builders.query(gd)); + //Constraint Data + let constraints = await db.query(handler.builders.query(handler.querys.listConstraints(handler, db))); + let key = [...await db.query(handler.builders.query(handler.querys.listConstraintDetails(handler, db)))]; //Table List - let allTables = (await db.query(handler.builders.query(handler.querys.listTables(handler, db)))).map((d: any) => d.TABLE_NAME); - + let allTables = (await db.query(handler.builders.query(handler.querys.listTables(handler, db)))).map((d: any) => d.TABLE_NAME ?? d.table_name); // gether Table Schematics let tableData: { [key: string]: any; } = {}; for (let i = 0; i < db.tables.length; i++) { @@ -28,15 +24,16 @@ export class Handler { const tableDataBuilder = new QueryBuilder(); tableDataBuilder.addCode("DESCRIBE "); tableDataBuilder.addCode(table.serialize(handler)); - tableData[table.dbLangTableName.toLowerCase()] = + tableData[table.dbLangTableName] = Object.fromEntries((await db.query(handler.builders.query(tableDataBuilder))).map((d: any) => [d.Field.toLowerCase(), d])); } catch (_) { - tableData[table.dbLangTableName.toLowerCase()] = null; + tableData[table.dbLangTableName] = null; } } const del = new QueryBuilder(); const create = new QueryBuilder(); + const connst = new QueryBuilder(); function checkUniqueIsVaild(n: string, table: string) { let t = db.getTable(table); @@ -48,10 +45,10 @@ export class Handler { let found = 0; for (let j = 0; j < key.length; j++) { if ( - key[j].CONSTRAINT_NAME == n - && key[j].TABLE_NAME == table + (key[j].CONSTRAINT_NAME ?? key[j].constraint_name) == n + && (key[j].TABLE_NAME ?? key[j].table_name) == table ) { - if (attrs.includes(key[j].COLUMN_NAME.toLowerCase())) found++; + if (attrs.includes((key[j].COLUMN_NAME ?? key[j].column_name).toLowerCase())) found++; else return false; } } @@ -73,12 +70,12 @@ export class Handler { let found = 0; for (let j = 0; j < key.length; j++) { if ( - key[j].CONSTRAINT_NAME == n - && key[j].TABLE_NAME == table - && key[j].REFERENCED_TABLE_NAME == refTable + (key[j].CONSTRAINT_NAME ?? key[j].constraint_name) == n + && (key[j].TABLE_NAME ?? key[j].table_name) == table + && (key[j].REFERENCED_TABLE_NAME ?? key[j].referenced_table_name) == refTable ) { - let inF = fromAttrs.indexOf(key[j].COLUMN_NAME.toLowerCase()); - let inT = toAttrs.indexOf(key[j].REFERENCED_COLUMN_NAME.toLowerCase()); + let inF = fromAttrs.indexOf((key[j].COLUMN_NAME ?? key[j].column_name).toLowerCase()); + let inT = toAttrs.indexOf((key[j].REFERENCED_COLUMN_NAME ?? key[j].referenced_column_name).toLowerCase()); if (inF != -1 && inT == inF) found++; else return false; } @@ -94,10 +91,10 @@ export class Handler { let found = 0; for (let j = 0; j < key.length; j++) { if ( - key[j].CONSTRAINT_NAME.toLowerCase() == c.name - && key[j].TABLE_NAME == tabel.dbLangTableName + (key[j].CONSTRAINT_NAME ?? key[j].constraint_name).toLowerCase() == c.name + && (key[j].TABLE_NAME ?? key[j].table_name) == tabel.dbLangTableName ) { - if (attrs.includes(key[j].COLUMN_NAME.toLowerCase())) found++; + if (attrs.includes((key[j].COLUMN_NAME ?? key[j].column_name).toLowerCase())) found++; else return false; } } @@ -110,12 +107,12 @@ export class Handler { let found = 0; for (let j = 0; j < key.length; j++) { if ( - key[j].CONSTRAINT_NAME == c.name - && key[j].TABLE_NAME == tabel.dbLangTableName - && key[j].REFERENCED_TABLE_NAME == refTable + (key[j].CONSTRAINT_NAME ?? key[j].constraint_name) == c.name + && (key[j].TABLE_NAME ?? key[j].table_name) == tabel.dbLangTableName + && (key[j].REFERENCED_TABLE_NAME ?? key[j].referenced_table_name) == refTable ) { - let inF = fromAttrs.indexOf(key[j].COLUMN_NAME.toLowerCase()); - let inT = toAttrs.indexOf(key[j].REFERENCED_COLUMN_NAME.toLowerCase()); + let inF = fromAttrs.indexOf((key[j].COLUMN_NAME ?? key[j].column_name).toLowerCase()); + let inT = toAttrs.indexOf((key[j].REFERENCED_COLUMN_NAME ?? key[j].referenced_column_name).toLowerCase()); if (inF != -1 && inT == inF) found++; else return false; } @@ -126,33 +123,34 @@ export class Handler { //delete check and unused/false(unique, foreign) constraints for (let i = 0; i < constraints.length; i++) { const c = constraints[i]; - if (c.CONSTRAINT_TYPE == "CHECK") { - del.appendEnding(handler.querys.removeCheck(handler, c.TABLE_NAME, c.CONSTRAINT_NAME)); - } else if (c.CONSTRAINT_TYPE == "UNIQUE") { + if ((c.CONSTRAINT_TYPE ?? c.constraint_type) == "CHECK") { + del.appendEnding(handler.querys.removeCheck(handler, (c.TABLE_NAME ?? c.table_name), (c.CONSTRAINT_NAME ?? c.constraint_name))); + } else if ((c.CONSTRAINT_TYPE ?? c.constraint_type) == "UNIQUE") { if ( - (typeof tableData[c.TABLE_NAME.toLowerCase()] == "undefined" && deleteInDB) - || !checkUniqueIsVaild(c.CONSTRAINT_NAME, c.TABLE_NAME) - ) del.appendEnding(handler.querys.removeUnique(handler, c.TABLE_NAME, c.CONSTRAINT_NAME)); - } else if (c.CONSTRAINT_TYPE == "FOREIGN KEY") { + (typeof tableData[c.TABLE_NAME ?? c.table_name] == "undefined" && deleteInDB) + || !checkUniqueIsVaild((c.CONSTRAINT_NAME ?? c.constraint_name), (c.TABLE_NAME ?? c.table_name)) + ) del.appendEnding(handler.querys.removeUnique(handler, (c.TABLE_NAME ?? c.table_name), (c.CONSTRAINT_NAME ?? c.constraint_name))); + } else if ((c.CONSTRAINT_TYPE ?? c.constraint_type) == "FOREIGN KEY") { if ( - (typeof tableData[c.TABLE_NAME.toLowerCase()] == "undefined" && deleteInDB) - || !checkForeignIsVaild(c.CONSTRAINT_NAME, c.TABLE_NAME) - ) del.appendEnding(handler.querys.removeForeignKey(handler, c.TABLE_NAME, c.CONSTRAINT_NAME)); + (typeof tableData[c.TABLE_NAME ?? c.table_name] == "undefined" && deleteInDB) + || !checkForeignIsVaild((c.CONSTRAINT_NAME ?? c.constraint_name), (c.TABLE_NAME ?? c.table_name)) + ) del.appendEnding(handler.querys.removeForeignKey(handler, (c.TABLE_NAME ?? c.table_name), (c.CONSTRAINT_NAME ?? c.constraint_name))); } } //delete unused Tables if (deleteInDB) for (let i = 0; i < allTables.length; i++) { - if (typeof tableData[allTables[i].toLowerCase()] == "undefined") del.appendEnding(handler.querys.deleteTable(handler, allTables[i])); + if (typeof tableData[allTables[i]] == "undefined") del.appendEnding(handler.querys.deleteTable(handler, allTables[i])); } function freeForUpdate(attr: string, table: string) { for (let i = 0; i < key.length; i++) { const k = key[i]; if ( - k.REFERENCED_TABLE_NAME == table - && k.REFERENCED_COLUMN_NAME.toLowerCase() == attr.toLowerCase() + (k.REFERENCED_TABLE_NAME ?? k.referenced_table_name) == table + && (k.REFERENCED_COLUMN_NAME ?? k.referenced_column_name).toLowerCase() == attr.toLowerCase() ) { - del.appendEnding(handler.querys.removeForeignKey(handler, k.TABLE_NAME, k.CONSTRAINT_NAME)); + del.appendEnding(handler.querys.removeForeignKey(handler, (k.TABLE_NAME ?? k.table_name), (k.CONSTRAINT_NAME ?? k.constraint_name))); + key.splice(i--, 1); } } } @@ -160,7 +158,7 @@ export class Handler { //create tables for (let i = 0; i < db.tables.length; i++) { const table = db.tables[i]; - const tableD = tableData[table.dbLangTableName.toLowerCase()]; + const tableD = tableData[table.dbLangTableName]; //delete unused Columns if (deleteInDB && tableD != null) { let keys = Object.keys(tableD); @@ -175,7 +173,7 @@ export class Handler { let changePrimary = false; if (tableD == null) { create.appendEnding(handler.querys.create(handler, table)); - changePrimary = true; + //changePrimary = true; } else { let keys = Object.keys(table.dbLangTableAttributes); for (let j = 0; j < keys.length; j++) { @@ -195,7 +193,8 @@ export class Handler { (!!a.ops.notNull || !!a.ops.autoIncrement || !!a.ops.primaryKey), (attrData.Null == "NO"), "|", (!!a.ops.autoIncrement), (attrData.Extra == "auto_increment"));*/ freeForUpdate(a.name, a.table.dbLangTableName); - create.appendEnding(handler.querys.changeColumn(handler, a)); + if (a.ops.autoIncrement) + create.appendEnding(handler.querys.changeColumn(handler, a)); } if (attrData == null) { changePrimary = true; @@ -211,22 +210,26 @@ export class Handler { create.appendEnding(handler.querys.removePrimaryKey(handler, table.dbLangTableName)); create.appendEnding(handler.querys.addPrimaryKey(handler, table)); } + } + for (let i = 0; i < db.tables.length; i++) { + const table = db.tables[i]; for (let j = 0; j < table.dbLangConstrains.length; j++) { const c = table.dbLangConstrains[j]; if (c instanceof checkConstraint) { - create.appendEnding(handler.querys.addCheck(handler, table, c)); + connst.appendEnding(handler.querys.addCheck(handler, table, c)); } else if (c instanceof uniqueConstraint) { if (!checkUniqueExists(table, c)) { - create.appendEnding(handler.querys.addUnique(handler, table, c)); + connst.appendEnding(handler.querys.addUnique(handler, table, c)); } } else if (c instanceof foreignConstraint) { if (!checkForeignExists(table, c)) { - create.appendEnding(handler.querys.addForeignKey(handler, table, c)); + connst.appendEnding(handler.querys.addForeignKey(handler, table, c)); } } } } if (!create.isEmpty()) del.append(create); + if (!connst.isEmpty()) del.append(connst); if (!del.isEmpty()) await db.query(handler.builders.query(del)); } @@ -236,11 +239,13 @@ export class Handler { builder.addCode("select "); builder.append(joinArg(", ")(handler, q.attr)); builder.addCode(` from `); - if(q.from == null){ + if (q.from == null) { builder.addCode(" DUAL"); - }else if (q.from instanceof Table){ + } else if (q.from instanceof Table) { builder.addCode(q.from.serialize(handler)); - }else{ + } else if (q.from instanceof TableAlias) { + builder.addCode(q.from.serializeAlias(handler)); + } else { builder.append(q.from.serialize(handler)); } if (q.whereD) { @@ -255,9 +260,16 @@ export class Handler { builder.append(q.havingD.serialize(handler)); } } - if (q.havingD) { - builder.addCode(" limit "); - builder.addInjection(q.limitD); + if (q.limitD != null) { + if (q.limitOffsetD == null) { + builder.addCode(" limit "); + builder.addInjection(q.limitD); + } else { + builder.addCode(" limit "); + builder.addInjection(q.limitOffsetD); + builder.addCode(", "); + builder.addInjection(q.limitD); + } } /*builder.setHandler((json)=>{ @@ -295,7 +307,7 @@ export class Handler { const s = q.setD[i]; qb.addCode(s[0].serialize(handler)); qb.addCode(" = ("); - if (s[1] instanceof Attribute) qb.addCode(s[1].serialize(handler)); + if (s[1] instanceof Attribute || s[1] instanceof AttributeAlias) qb.addCode(s[1].serialize(handler)); else if (s[1] instanceof Modifier || s[1] instanceof selectQuery || s[1] instanceof Aggregation) { qb.append(s[1].serialize(handler)); } else { @@ -324,7 +336,24 @@ export class Handler { const qb = new QueryBuilder(); qb.addCode(`SELECT * FROM information_schema.tables where TABLE_SCHEMA = `); qb.addInjection(db.name); - qb.addCode(` and TABLE_TYPE = "BASE TABLE"`); + qb.addCode(` and TABLE_TYPE = `); + qb.addInjection("BASE TABLE"); + return qb; + }, + listConstraints: (handler: Handler, db: DB) => { + let qb = new QueryBuilder(); + qb.addCode(`select * from information_schema.table_constraints where CONSTRAINT_SCHEMA = `); + qb.addInjection(db.name); + qb.addCode(` or TABLE_SCHEMA = `); + qb.addInjection(db.name); + return qb; + }, + listConstraintDetails: (handler: Handler, db: DB) => { + let qb = new QueryBuilder(); + qb.addCode(`SELECT * FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE where CONSTRAINT_SCHEMA = `); + qb.addInjection(db.name); + qb.addCode(` or TABLE_SCHEMA = `); + qb.addInjection(db.name); return qb; }, create: (handler: Handler, table: Table): QueryBuilder => { @@ -337,6 +366,15 @@ export class Handler { builder.append(a.serializeSettings(handler)); if (i + 1 < keys.length) builder.addCode(", "); } + let primAttr = Object.entries(table.dbLangTableAttributes) + .filter(([n, attr]) => !!attr.ops.primaryKey); + if (primAttr.length > 0) { + builder.addCode(", primary key ("); + builder.addCodeCommaSeperated( + primAttr.map(([n, attr]) => handler.builders.escapeID(n)) + ); + builder.addCode(")"); + } builder.addCode(")"); return builder; }, @@ -413,14 +451,15 @@ export class Handler { return builder; }, addPrimaryKey: (handler: Handler, table: Table) => { + let primaAttr = Object.entries(table.dbLangTableAttributes) + .filter(([n, attr]) => !!attr.ops.primaryKey); const qb = new QueryBuilder(); + if(primaAttr.length == 0) return qb; qb.addCode("ALTER TABLE "); qb.addCode(table.serialize(handler)); qb.addCode(" add PRIMARY KEY if not exists ("); qb.addCodeCommaSeperated( - Object.entries(table.dbLangTableAttributes) - .filter(([n, attr]) => !!attr.ops.primaryKey) - .map(([n, attr]) => handler.builders.escapeID(n)) + primaAttr.map(([n, attr]) => handler.builders.escapeID(n)) ); qb.addCode(")"); return qb; @@ -512,15 +551,18 @@ export class Handler { if (key.match(/^`.+`$/g)) return key; return `\`${key.replace(/`/g, '``')}\``; }, + escapeLiteral: (data: any): string => { + return this.db.mariaPool.escape(data); + }, compareDatatypes: (handler: Handler, attr: Datatype, curr: String) => { let qb = attr.serialize(handler); let sql = ""; for (let i = 0; i < qb.list.length; i++) { const [inject, data] = qb.list[i]; - sql += data; + if (inject) sql += handler.builders.escapeLiteral(data); + else sql += data; } - - return curr.split(" ").join("").startsWith(sql.split(" ").join("")); + return curr.split(", ").join(",").startsWith(sql.split(", ").join(",")); }, } @@ -631,7 +673,7 @@ export class Handler { divide: joinArg("-/"), not: (handler: Handler, a: allModifierInput[]): QueryBuilder => { let e = a[0]; - if (e instanceof Attribute) return new QueryBuilder([{ data: "not (" + e.toString(handler) + ")" }]) + if (e instanceof Attribute || e instanceof AttributeAlias) return new QueryBuilder([{ data: "not (" + e.toString(handler) + ")" }]) if (e instanceof Modifier || e instanceof selectQuery || e instanceof Aggregation) { const builder = new QueryBuilder(); builder.addCode("not ("); @@ -647,14 +689,14 @@ export class Handler { }, like: (handler: Handler, a: allModifierInput[]): QueryBuilder => { const builder = new QueryBuilder(); - if (a[0] instanceof Attribute) builder.addCode(a[0].toString()); + if (a[0] instanceof Attribute || a[0] instanceof AttributeAlias) builder.addCode(a[0].toString()); else if (a[0] instanceof Modifier || a[0] instanceof selectQuery || a[0] instanceof Aggregation) { builder.append(a[0].serialize(handler)); } else { builder.addInjection(a[0]); } builder.addCode(" LIKE "); - if (a[1] instanceof Attribute) builder.addCode(a[1].toString()); + if (a[1] instanceof Attribute || a[1] instanceof AttributeAlias) builder.addCode(a[1].toString()); else if (a[1] instanceof Modifier || a[1] instanceof selectQuery || a[1] instanceof Aggregation) { builder.append(a[1].serialize(handler)); } else { @@ -667,7 +709,7 @@ export class Handler { builder.addCode("CONCAT("); for (let i = 0; i < a.length; i++) { const e = a[i]; - if (e instanceof Attribute) builder.addCode(e.toString()); + if (e instanceof Attribute || e instanceof AttributeAlias) builder.addCode(e.toString()); else if (e instanceof Modifier || e instanceof selectQuery || e instanceof Aggregation) { builder.append(e.serialize(handler)); } else { @@ -709,7 +751,7 @@ export class Handler { builder.addCode(")"); return builder; }, - bool: dataTypeNoArg("bool"), + bool: dataTypeNoArg("tinyint"), bit: dataTypeNoArg("bit"), tinyint: dataTypeNoArg("tinyint"), smallint: dataTypeNoArg("smallint"), @@ -765,7 +807,7 @@ function joinArg(type: string) { const builder = new QueryBuilder(); for (let i = 0; i < a.length; i++) { const d = a[i]; - if (d instanceof Attribute) builder.addCode(d.toString(handler)); + if (d instanceof Attribute || d instanceof AttributeAlias) builder.addCode(d.toString(handler)); else if (d instanceof Modifier || d instanceof selectQuery || d instanceof Aggregation) { builder.addCode("("); builder.append(d.serialize(handler)); diff --git a/src/query.ts b/src/query.ts index 9fd00d6..29b713e 100644 --- a/src/query.ts +++ b/src/query.ts @@ -1,3 +1,4 @@ +import { AttributeAlias } from "./alias"; import { Attribute, DB, Table } from "./db"; import { BooleanModifier, Modifier } from "./dbStructure"; import { Handler } from "./defaultHandler"; @@ -48,6 +49,7 @@ export class QueryBuilder { this.list.push(...qb.list); } appendEnding(qb: QueryBuilder) { + if(qb.isEmpty()) return; this.append(qb); this.list.push([false, ";"]); } @@ -72,8 +74,8 @@ export class selectQuery { this.whereD = m; return this; } - groupByD: Attribute[] = []; - groupBy(a: Attribute[]) { + groupByD: (Attribute | AttributeAlias)[] = []; + groupBy(a: (Attribute | AttributeAlias)[]) { this.groupByD = a; return this; } @@ -83,8 +85,10 @@ export class selectQuery { return this; } limitD: number | null = null; - limit(i: number) { + limitOffsetD: number | null = null; + limit(i: number, offset: number = 0) { this.limitD = i; + this.limitOffsetD = offset; return this; } diff --git a/src/types.ts b/src/types.ts index 5b26bfc..f256d8d 100644 --- a/src/types.ts +++ b/src/types.ts @@ -1,12 +1,13 @@ +import { AttributeAlias, TableAlias } from "./alias"; import { Attribute, Table } from "./db"; import { Aggregation, BooleanModifier, Datatype, Joins, Modifier } from "./dbStructure"; import { QueryBuilder, selectQuery } from "./query"; export type primaryData = string | number | boolean | null; -export type allModifierInput = primaryData | Modifier | selectQuery | Attribute | Aggregation; +export type allModifierInput = primaryData | Modifier | selectQuery | Attribute | AttributeAlias | Aggregation; -export type selectElements = primaryData | Attribute | Aggregation | selectQuery -export type selectFromElements = Table | Joins | null; +export type selectElements = primaryData | Attribute | AttributeAlias | Aggregation | selectQuery +export type selectFromElements = TableAlias | Table | Joins | null; export type joinElements = Table | Joins; export type serializeReturn = [string, primaryData[]]; @@ -56,4 +57,10 @@ export enum joinType { right, full, cross +} + +export enum dbType { + mariadb, + //mysql, + postgres, } \ No newline at end of file