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import {ModelInterface, ModelStaticInterface} from "../JeloquentInterfaces"; |
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import Table from "./Table"; |
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export default class Database { |
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private _name: string; |
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private _tables: Map<string, Table>; |
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/** |
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* |
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* @param name |
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* @param models |
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*/ |
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constructor(name, models:Array<ModelStaticInterface>) { |
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this._name = name; |
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this._tables = new Map(); |
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models.forEach((model: ModelStaticInterface) => { |
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this.register(model); |
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}); |
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} |
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get name(): string { |
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return this._name; |
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} |
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addIndex(table:string, indexName:string, lookUpKey:string, id:string|number): void { |
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this.table(table).addIndex(indexName, lookUpKey, id) |
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} |
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allModels(table): Map<string|number, ModelInterface> { |
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return this.table(table).allModels(); |
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} |
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drop(table: string): void { |
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this._tables.delete(table); |
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} |
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ids(table: string): Array<string|number> { |
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return this.table(table).ids; |
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} |
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indexes(table: string): Map<string, Map<string|number, Set<string|number>>> { |
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return this.table(table).indexes; |
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} |
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/** |
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* @todo Build better way of parsing queries; |
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*/ |
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query(sql) { |
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const sqlParts = sql.match(/^((SELECT)|(INSERT)|(DELETE))\s+(.*)\s+FROM\s+([^\s]+)(\s+WHERE\s+([^\s]+)\s+(=)\s+([^\s+]))?((\s+)|;)?$/i); |
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if (sqlParts.length === 0) { |
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return null; |
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} |
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const action = sqlParts[1]; |
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//const fields = sqlParts[5].split(','); |
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const table = sqlParts[6] |
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const matchField = sqlParts[8]; |
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const matchValue = sqlParts[10]; |
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if (matchField === 'id') { |
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return this.table(table)[action.toLowerCase()](matchValue); |
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} |
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if (matchField === undefined && action === 'SELECT') { |
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return this.table(table).all(); |
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} |
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return null; |
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} |
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register(model: ModelStaticInterface) { |
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const table = new Table(model); |
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this._tables.set(table.name, table); |
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} |
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setIndexes(): void { |
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this._tables.forEach((table) => { |
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table.setupIndexes(); |
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}); |
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} |
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showTables(): Array<string> { |
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return [...this._tables.keys()]; |
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} |
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table(name:string): Table { |
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return this._tables.get(name); |
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} |
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} |
mbroersen /
jeloquent
