.woodpecker.yml

@@ -12,7 +12,6 @@ pipeline:
       - mkdir dblang
       - mkdir upload
       - npm run prepublish
-      - ls dist
       - cp dist/* dblang
       - zip -r upload/DBlang.zip dblang/*
       - tar -czvf upload/DBlang.tar.gz dblang/*

src/db.ts

@@ -1,17 +1,19 @@
 import mariadb from 'mariadb';
-import { Datatype } from './dbStructure';
+import { checkConstraint, Constraint, Datatype, uniqueConstraint } from './dbStructure';
 import { Handler } from './defaultHandler';
 import { Query, selectQuery } from './query';
-import { attributeSettings, onAction, primaryData, serializeReturn } from './types';
+import { attributeSettings, extendedAttributeSettings, onAction, primaryData, serializeReturn } from './types';
 
 
 export class DB {
     tables:Table[] = [];
     handler: Handler;
+    name: string;
     //pool:mariadb.Pool;
     constructor(/*{ host, user, password, database, connectionLimit = 5 }*/) {
         //this.pool = mariadb.createPool({ host, user, password, database, connectionLimit, multipleStatements: true });
         this.handler = new Handler();
+        this.name = "notimplemented"
     }
     async query(query: Query) {
         console.log(query);
@@ -24,7 +26,7 @@ export class DB {
     sync(){
         let handler = this.getHandler();
         this.tables.forEach(t=>{
-            console.log(handler.querys.create(handler,t));
+            console.log(new Query(handler.builders.query(handler.querys.create(handler,t))));
         })
     }
 
@@ -45,6 +47,19 @@ export class Attribute {
         this.ops = ops;
         this.type = type;
         this.table = table;
+        
+        if(ops.check != null){
+            table.addConstraint(new checkConstraint(
+                table.dbLangDatabaseInstance.name+"_"+table.dbLangTableName+"_"+name+"_check_constraint",
+                ops.check
+            ))
+        }
+        if(ops.unique != null){
+            table.addConstraint(new uniqueConstraint(
+                table.dbLangDatabaseInstance.name+"_"+table.dbLangTableName+" "+name+"_unique_constraint",
+                [this]
+            ))
+        }
     }
     serializeDatatype(handler : Handler){
         return this.type.serialize(handler);
@@ -68,10 +83,11 @@ export class Table {
     dbLangTableName: string;
     dbLangTableAttributes: { [key: string]: Attribute; } = {};
     dbLangDatabaseInstance: DB;
+    dbLangConstrains: Constraint[] = [];
     [key: string]: Attribute | any
-    constructor(name: string, table:DB) {
+    constructor(name: string, db:DB) {
         this.dbLangTableName = name;
-        this.dbLangDatabaseInstance = table;
+        this.dbLangDatabaseInstance = db;
     }
     serialize(handler : Handler) {
         return this.toString(handler);
@@ -80,15 +96,25 @@ export class Table {
         return handler.builders.escapeID(this.dbLangTableName);
     }
     addAttribute(name: string, type: Datatype, ops: attributeSettings = {}, noErrorOnNameConflict = false) {
+        if(this.dbLangTableAttributes[name] != null) throw new Error("You are tring to create an Attribute twise!");
         let attr = new Attribute(name,this,type,ops);
         this.dbLangTableAttributes[name] = attr;
-        if (["serialize", "toString", "addAttribute", "dbLangTableName", "dbLangTableAttributes", "dbLangDatabaseInstance"].includes(name)) {
+        if (["serialize", "toString", "addAttribute", "dbLangTableName", "dbLangTableAttributes", "dbLangDatabaseInstance","addConstraint","addAttributes"].includes(name)) {
             if (!noErrorOnNameConflict) throw new Error("You cannot name Attribute like Methode of this Table!");
         } else {
             this[name] = attr;
         }
         return attr;
     }
+    addAttributes(list:{[key: string]:extendedAttributeSettings}):{[key: string]:Attribute} {
+        return Object.fromEntries(Object.entries(list).map(([k,a])=>{
+            return [k,this.addAttribute(k,a.type,a)];
+        }));
+    }
+    addConstraint(c:Constraint){
+        c.check(this);
+        this.dbLangConstrains.push(c);
+    }
 }
 
 export * from './funcs';

src/dbStructure.ts

@@ -1,5 +1,6 @@
-import { Attribute } from "./db";
+import { Attribute, Table } from "./db";
 import { Handler } from "./defaultHandler";
+import { QueryBuilder } from "./query";
 import { allModifierInput, primaryData, serializeReturn } from "./types";
 
 export class Datatype{
@@ -9,7 +10,7 @@ export class Datatype{
         this.type = type;
         this.args = args;
     }
-    serialize(handler : Handler): serializeReturn{
+    serialize(handler : Handler): QueryBuilder{
         return handler.datatypes[this.type as keyof typeof handler.datatypes](this.args);
     }
 }
@@ -21,7 +22,7 @@ export abstract class Modifier {
         this.t = type;
         this.a = args;
     }
-    serialize(handler : Handler): serializeReturn {
+    serialize(handler : Handler): QueryBuilder {
         return handler.modifiers[this.t as keyof typeof handler.modifiers](handler,this.a);
     }
 }
@@ -37,13 +38,60 @@ export class Aggregation {
         this.t = type;
         this.a = args;
     }
-    serialize(handler : Handler): serializeReturn {
+    serialize(handler : Handler): QueryBuilder {
         return handler.aggregations[this.t as keyof typeof handler.aggregations](handler,this.a);
     }
 }
 export class Joins {
 
-    serialize(handler : Handler): serializeReturn {
-        return ["", []];
+    serialize(handler : Handler): QueryBuilder {
+        return new QueryBuilder();
     }
 }
+
+export interface Constraint{
+    name:string;
+    serialize( handler: Handler) : QueryBuilder;
+    uses(attr:Attribute): boolean;
+    check(attr:Table): boolean | string; 
+}
+
+export class checkConstraint implements Constraint{
+    checkQuery:BooleanModifier;
+    name: string;
+    constructor(name:string, check: BooleanModifier){
+        this.name = name;
+        this.checkQuery = check;
+    }
+    check(attr: Table): boolean {
+        throw new Error("Method not implemented.");
+    }
+    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{
+    name: string;
+    attr: Attribute[];
+    constructor(name:string, attr:Attribute[]){
+        this.name = name;
+        this.attr = attr;
+    }
+    check(table: Table): boolean|string {
+        for(let i = 0; i < this.attr.length; i++){
+            if(this.attr[i].ops.primaryKey) return "Can not combine unique Constraint and primary key";
+        }
+        return false;
+    }
+    uses(attr: Attribute): boolean {
+        throw new Error("Method not implemented.");
+    }
+    serialize(handler: Handler): QueryBuilder {
+        throw new Error("Method not implemented.");
+    }
+
+}

src/defaultHandler.ts

@@ -1,92 +1,123 @@
 import { Attribute, DB, Table } from "./db"
 import { Aggregation, Modifier } from "./dbStructure"
-import { selectQuery } from "./query"
+import { QueryBuilder, selectQuery } from "./query"
 import { allModifierInput, primaryData, serializeReturn } from "./types"
 
 export class Handler {
-    syncDB(db : DB){
+    /*syncDB(db : DB){
 
-    }
+    }*/
 
     querys = {
-        select: (handler:Handler,q: selectQuery): serializeReturn => {
-            let args: primaryData[] = [];
-            let w = joinArg(", ")(handler,q.attr);
-            args.push(...w[1]);
-            let sql = `select ${w[0]} from ${q.from == null ? 'DUAL' : q.from.serialize(handler)}`;
+        select: (handler: Handler, q: selectQuery): QueryBuilder => {
+            const builder = new QueryBuilder();
+            builder.addCode("select ");
+            builder.append(joinArg(", ")(handler, q.attr));
+            builder.addCode(` from ${q.from == null ? 'DUAL' : q.from.serialize(handler)}`);
             if (q.whereD) {
-                let whereS = q.whereD.serialize(handler);
-                args.push(...whereS[1]);
-                sql += " where " + whereS[0];
+                builder.addCode(" where ");
+                builder.append(q.whereD.serialize(handler));
             }
             if (q.groupByD.length > 0) {
-                let groupByS = joinArg(",")(handler,q.groupByD);
-                args.push(...groupByS[1]);
-                sql += " group by " + groupByS[0];
+                builder.addCode(" group by ");
+                builder.append(joinArg(",")(handler, q.groupByD));
                 if (q.havingD) {
-                    let havingS = q.havingD.serialize(handler);
-                    args.push(...havingS[1]);
-                    sql += " having " + havingS[0];
+                    builder.addCode(" having ");
+                    builder.append(q.havingD.serialize(handler));
                 }
             }
-            if (q.limitD != null) {
-                sql += " limit ?";
-                args.push(q.limitD);
-            }
 
-            return [sql, args];
+            if (q.havingD) {
+                builder.addCode(" limit ");
+                builder.addInjection(q.limitD);
+            }
+            return builder;
         },
-        create:(handler:Handler,table: Table): serializeReturn=>{
-            let args:primaryData[] = [];
-            let sql = `create table if not exists ${table.toString(handler)}(
-${Object.entries(table.dbLangTableAttributes).map(([_,a])=>{
-                    let atype = a.serializeSettings(handler);
-                    args.push(...(atype[1]));
-                    return a.serialize(handler)+" "+atype[0];
-                }).join(",\n")}
-)`;
-            return [sql,args];
+        create: (handler: Handler, table: Table): QueryBuilder => {
+            const builder = new QueryBuilder();
+            builder.addCode(`create table if not exists ${table.toString(handler)}(`);
+            let keys = Object.keys(table.dbLangTableAttributes);
+            for (let i = 0; i < keys.length; i++) {
+                const a = table.dbLangTableAttributes[keys[i]];
+                builder.addCode(a.serialize(handler) + " ");
+                builder.append(a.serializeSettings(handler));
+                if (i + 1 < keys.length) builder.addCode(", ");
             }
+            builder.addCode(")");
+            return builder;
+        },
+
     }
 
+    constraints = {
+        // check constraints
+        listPrimaryKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        listForeignKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        listUniqueKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        listChecks: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        // add constraints
+        appPrimaryKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        appForeignKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        addUniqueKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        addChecks: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        //should drop all keys to be able to recreate them
+        dropPrimaryKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        dropForeignKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        dropUniqueKeys: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+        dropChecks: (handler: Handler, table: Table): QueryBuilder => new QueryBuilder(),
+    }
 
     builders = {
-        attributeSettings: (handler:Handler,a: Attribute): serializeReturn => {
-            let dtype = a.type.serialize(handler);
-            let sql = ""+dtype[0];
-            let args:primaryData[] = [...dtype[1]];
+        query: (qb: QueryBuilder): serializeReturn => {
+            let args: primaryData[] = [];
+            let sql = "";
+            for (let i = 0; i < qb.list.length; i++) {
+                const [inject, data] = qb.list[i];
+                if (inject) {
+                    sql += "?";
+                    args.push(data);
+                } else {
+                    sql += data;
+                }
+            }
+            return [sql, args];
+        },
+
+        attributeSettings: (handler: Handler, a: Attribute): QueryBuilder => {
+            const builder = new QueryBuilder();
+            builder.append(a.type.serialize(handler));
             if (a.ops.autoIncrement) {
-                sql += " auto_increment";
+                builder.addCode(" auto_increment");
             }
-            if (a.ops.primaryKey) {
+            /*if (a.ops.primaryKey) {
                 sql += " primary key";
-            }
+            }*/
             if (a.ops.default != null) {
                 if (a.ops.autoIncrement || a.ops.primaryKey || a.ops.notNull)
                     throw new Error(`Can not set default when autoIncrement, primaryKey or notNull ist set on Attribute: ${a.toStringFunc(handler)}`);
-                sql += " default ?";
-                args.push(a.ops.default);
+                builder.addCode(" default ");
+                builder.addInjection(a.ops.default);
             }
 
-            if (a.ops.unique != null) {
+            /*if (a.ops.unique != null) {
                 if (!a.ops.autoIncrement && !a.ops.primaryKey){
                     sql += " unique";
                 }
-            }
+            }*/
             if (a.ops.notNull != null) {
-                if (!a.ops.autoIncrement && !a.ops.primaryKey && a.ops.default == null){
-                    sql += " not null";
+                if (!a.ops.autoIncrement && !a.ops.primaryKey && a.ops.default == null) {
+                    builder.addCode(" not null");
                 }
             }
 
-            if (a.ops.foreginKey != null) {
+            /*if (a.ops.foreginKey != null) {
                 sql += ` foreign key references (${a.ops.foreginKey.link.toStringFunc(handler)})`
-            }
+            }*/
 
-            return [sql, args];
+            return builder;
         },
-        escapeID: (key:string) :string =>{
-            if(!key || key === "" || key.includes('\u0000')) throw new Error("Can not escape empty key or with null unicode!");
+        escapeID: (key: string): string => {
+            if (!key || key === "" || key.includes('\u0000')) throw new Error("Can not escape empty key or with null unicode!");
             if (key.match(/^`.+`$/g)) return key;
             return `\`${key.replace(/`/g, '``')}\``;
         }
@@ -94,11 +125,11 @@ ${Object.entries(table.dbLangTableAttributes).map(([_,a])=>{
 
 
     aggregations = {
-        count: (handler:Handler,a: Attribute): serializeReturn => ["count(" + a.toString(handler) + ")", []],
-        sum: (handler:Handler,a: Attribute): serializeReturn => ["sum(" + a.toString(handler) + ")", []],
-        avg: (handler:Handler,a: Attribute): serializeReturn => ["avg(" + a.toString(handler) + ")", []],
-        min: (handler:Handler,a: Attribute): serializeReturn => ["min(" + a.toString(handler) + ")", []],
-        max: (handler:Handler,a: Attribute): serializeReturn => ["max(" + a.toString(handler) + ")", []],
+        count: (handler: Handler, a: Attribute): QueryBuilder => new QueryBuilder([{ data: "count(" + a.toString(handler) + ")" }]),
+        sum: (handler: Handler, a: Attribute): QueryBuilder => new QueryBuilder([{ data: "sum(" + a.toString(handler) + ")" }]),
+        avg: (handler: Handler, a: Attribute): QueryBuilder => new QueryBuilder([{ data: "avg(" + a.toString(handler) + ")" }]),
+        min: (handler: Handler, a: Attribute): QueryBuilder => new QueryBuilder([{ data: "min(" + a.toString(handler) + ")" }]),
+        max: (handler: Handler, a: Attribute): QueryBuilder => new QueryBuilder([{ data: "max(" + a.toString(handler) + ")" }]),
     }
 
     modifiers = {
@@ -111,14 +142,21 @@ ${Object.entries(table.dbLangTableAttributes).map(([_,a])=>{
         ge: joinArg(">"),
         plus: joinArg("+"),
         minus: joinArg("-"),
-        not: (handler:Handler,a: allModifierInput[]): serializeReturn => {
+        not: (handler: Handler, a: allModifierInput[]): QueryBuilder => {
             let e = a[0];
-            if (e instanceof Attribute) return ["not (" + e.toString(handler) + ")", []];
+            if (e instanceof Attribute) return new QueryBuilder([{ data: "not (" + e.toString(handler) + ")" }])
             if (e instanceof Modifier || e instanceof selectQuery || e instanceof Aggregation) {
-                let [sqli, argsi] = e.serialize(handler);
-                return ["not (" + sqli + ")", argsi]
+                const builder = new QueryBuilder();
+                builder.addCode("not (");
+                builder.append(e.serialize(handler));
+                builder.addCode(")");
+                return builder;
             }
-            return ["not (?)", [e]];
+            return new QueryBuilder([
+                { data: "not(" },
+                { inject: true, data: e },
+                { data: ")" }
+            ])
         }
     }
     datatypes = {
@@ -136,12 +174,19 @@ ${Object.entries(table.dbLangTableAttributes).map(([_,a])=>{
         mediumtext: dataTypeNoArg("mediumtext"),
         longtext: dataTypeNoArg("longtext"),
 
-        enum: (a: primaryData[]): serializeReturn => {
-            console.log(a);
-            return ["enum(" + a.map(() => "?").join(", ") + ")", a];
+        enum: (a: primaryData[]): QueryBuilder => {
+            const builder = new QueryBuilder();
+            builder.addCode("enum(");
+            builder.addInjectionCommaSeperated(a);
+            builder.addCode(")");
+            return builder;
         },
-        set: (a: primaryData[]): serializeReturn => {
-            return ["set(" + a.map(() => "?").join(", ") + ")", a];
+        set: (a: primaryData[]): QueryBuilder => {
+            const builder = new QueryBuilder();
+            builder.addCode("set(");
+            builder.addInjectionCommaSeperated(a);
+            builder.addCode(")");
+            return builder;
         },
         bool: dataTypeNoArg("bool"),
         bit: dataTypeNoArg("bit"),
@@ -165,36 +210,50 @@ ${Object.entries(table.dbLangTableAttributes).map(([_,a])=>{
 };
 
 function dataTypeNoArg(type: string) {
-    return (a: primaryData[]): serializeReturn => {
-        return [type, []];
+    return (a: primaryData[]): QueryBuilder => {
+        return new QueryBuilder([{
+            inject: false,
+            data: type
+        }]);
     }
 }
 function dataTypeSingleNum(type: string) {
-    return (a: primaryData[]): serializeReturn => {
-        return [type + "(?)", [a[0]]];
+    return (a: primaryData[]): QueryBuilder => {
+        return new QueryBuilder([
+            { data: type + "(" },
+            { inject: true, data: a[0] },
+            { data: ")" }
+        ]);
     }
 }
 function dataTypeDblNum(type: string) {
-    return (a: primaryData[]): serializeReturn => {
-        return [type + "(?,?)", [a[0], a[1]]];
+    return (a: primaryData[]): QueryBuilder => {
+        return new QueryBuilder([
+            { data: type + "(" },
+            { inject: true, data: a[0] },
+            { data: ", " },
+            { inject: true, data: a[1] },
+            { data: ")" }
+        ]);
     }
 }
 
 
 function joinArg(type: string) {
-    return (handler:Handler,a: (allModifierInput)[]): serializeReturn => {
-        let args: primaryData[] = [];
-        let sql = a.map(d => {
-            if (d instanceof Attribute) return d.toString(handler);
-            if (d instanceof Modifier || d instanceof selectQuery || d instanceof Aggregation) {
-                let [sqli, argsi] = d.serialize(handler);
-                args.push(...(argsi.flat(Infinity)));
-                return "(" + sqli + ")";
+    return (handler: Handler, a: (allModifierInput)[]): QueryBuilder => {
+        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));
+            else if (d instanceof Modifier || d instanceof selectQuery || d instanceof Aggregation) {
+                builder.addCode("(");
+                builder.append(d.serialize(handler));
+                builder.addCode(")");
+            } else {
+                builder.addInjection(d);
             }
-            args.push(d);
-            return "?";
-        }).join(" " + type + " ");
-        return [sql, args]
-
+            if (i + 1 < a.length) builder.addCode(" " + type + " ");
+        }
+        return builder;
     }
 }

src/funcs.ts

@@ -1,5 +1,5 @@
 import { Attribute } from "./db";
-import { Aggregation, BooleanModifier, Datatype, NumberModifier } from "./dbStructure";
+import { Aggregation, BooleanModifier, checkConstraint, Datatype, NumberModifier } from "./dbStructure";
 import { selectQuery } from "./query";
 import { allModifierInput, primaryData, selectElements, selectFromElements } from "./types";
 
@@ -62,3 +62,18 @@ export const DATETIME = new Datatype("datetime",[]);
 export const TIMESTAMP = new Datatype("timestamp",[]);
 export const TIME = new Datatype("time",[]);
 export const YEAR = new Datatype("year",[]);
+
+// Constraints
+//TODO:
+//primary key
+export const foreginKey = (attrs:Attribute[],target:Attribute[])=>{};
+export const uniqueKey = (attr:Attribute[])=>{};
+export const check = (name:string,mod:BooleanModifier)=>new checkConstraint(name,mod);
+
+
+/**
+ * primary key: kein richtiger Constraint -> renew = drop
+ * foreign key: ?
+ * unique: richtiger Constraint -> achtung manchmal nicht entfernabr
+ * check: richtiger Constraint
+ */

src/query.ts

@@ -7,12 +7,41 @@ import { primaryData, selectElements, selectFromElements, serializeReturn } from
 export class Query {
     sql: string;
     values: primaryData[];
-    constructor(sql: string, values: primaryData[]) {
+    constructor([sql, values]:serializeReturn) {
         this.sql = sql;
         this.values = values;
     }
 }
 
+export class QueryBuilder {
+    //injekt and data
+    list: ([boolean, primaryData])[] = [];
+    constructor(l?: ({ inject?: boolean, data: primaryData })[]) {
+        if (Array.isArray(l))
+            for (let i = 0; i < l.length; i++) {
+                const e = l[i];
+                this.list.push([e.inject ? true : false, e.data]);
+            }
+    }
+    addCode(text: string) {
+        this.list.push([false, text]);
+    }
+    addInjection(data: primaryData) {
+        this.list.push([true, data]);
+    }
+    addInjectionCommaSeperated(data: primaryData[], comma = ", ") {
+        for (let i = 0; i < data.length; i++) {
+            const e = data[i];
+            this.list.push([true, e]);
+            if(i+1<data.length)this.list.push([false, comma]);
+        }
+    }
+    append(qb: QueryBuilder) {
+        this.list.push(...qb.list);
+    }
+}
+
+
 export class selectQuery {
     attr: selectElements[] = [];
     from: selectFromElements;
@@ -41,12 +70,13 @@ export class selectQuery {
         return this;
     }
 
-    serialize(handler : Handler): serializeReturn {
-        return handler.querys.select(handler,this);
+    serialize(handler: Handler): QueryBuilder {
+        return handler.querys.select(handler, this);
     }
 
     query(db: DB) {
-        const s = this.serialize(db.getHandler());
-        return db.query(new Query(s[0], s[1]));
+        const handler = db.getHandler();
+        const s = handler.builders.query(this.serialize(handler));
+        return db.query(new Query(s));
     }
 }

src/types.ts

@@ -1,5 +1,5 @@
 import { Attribute, Table } from "./db";
-import { Aggregation, Joins, Modifier } from "./dbStructure";
+import { Aggregation, BooleanModifier, Datatype, Joins, Modifier } from "./dbStructure";
 import { selectQuery } from "./query";
 
 export type primaryData = string | number | boolean | null;
@@ -20,8 +20,23 @@ export type attributeSettings = {
         link: Attribute,
         onDelete?: onAction,
         onUpdate?: onAction
-    }
+    },
+    check?:BooleanModifier
 };
+export type extendedAttributeSettings = {
+    type: Datatype,
+    unique?: boolean,
+    autoIncrement?: boolean,
+    default?: primaryData,
+    notNull?: boolean
+    primaryKey?: boolean,
+    foreginKey?: {
+        link: Attribute,
+        onDelete?: onAction,
+        onUpdate?: onAction
+    },
+    check?:BooleanModifier
+}
 
 export enum onAction {
     cascade,