47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
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import { Attribute, DB } from "./db";
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import { BooleanModifier, Modifier } from "./dbStructure";
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import { Handler } from "./defaultHandler";
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import { primaryData, selectElements, selectFromElements, serializeReturn } from "./types";
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export class Query {
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sql : string;
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values : primaryData[];
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constructor(sql: string, values: primaryData[]) {
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this.sql = sql;
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this.values = values;
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}
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}
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export class selectQuery {
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attr:selectElements[] = [];
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from:selectFromElements;
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constructor(a: selectElements[], from:selectFromElements) {
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this.attr.push(...a.flat(Infinity));
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this.from = from ? from : null;
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}
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whereD:BooleanModifier | null = null;
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where(m: BooleanModifier) {
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this.whereD = m;
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return this;
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}
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groupByD: Attribute[] = [];
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groupBy(a: Attribute[]) {
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this.groupByD = a;
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return this;
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}
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havingD:Modifier | null = null;
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having(m: Modifier) {
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this.havingD = m;
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return this;
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}
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serialize(handler = Handler) : serializeReturn {
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return handler.querys.select(this);
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}
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query(db: DB) {
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const s = this.serialize(db.getHandler());
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return new Query(s[0],s[1]);
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}
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}
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