@sqlitecloud/drivers/lib/drivers/statement.js

SQLiteCloud drivers for Typescript/Javascript in edge, web and node clients

"use strict";
/**
 * statement.ts
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.Statement = void 0;
const utilities_1 = require("./utilities");
/**
 * A statement generated by Database.prepare used to prepare SQL with ? bindings.
 *
 * SCSP protocol does not support named placeholders yet.
 */
class Statement {
    constructor(database, sql, ...params) {
        /** The SQL statement with binding values applied */
        this._preparedSql = { query: '' };
        this._database = database;
        this._sql = sql;
        this.bind(...params);
    }
    /**
     * Binds parameters to the prepared statement and calls the callback when done
     * or when an error occurs. The function returns the Statement object to allow
     * for function chaining. The first and only argument to the callback is null
     * when binding was successful. Binding parameters with this function completely
     * resets the statement object and row cursor and removes all previously bound
     * parameters, if any.
     *
     * In SQLiteCloud the statement is prepared on the database server and binding errors
     * are raised on execution time.
     */
    bind(...params) {
        const { args, callback } = (0, utilities_1.popCallback)(params);
        this._preparedSql = { query: this._sql, parameters: args };
        if (callback) {
            callback.call(this, null);
        }
        return this;
    }
    run(...params) {
        var _a;
        const { args, callback } = (0, utilities_1.popCallback)(params || []);
        if ((args === null || args === void 0 ? void 0 : args.length) > 0) {
            // apply new bindings then execute
            this.bind(...args, () => {
                var _a;
                const query = this._preparedSql.query || '';
                const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
                this._database.run(query, ...parametes, callback);
            });
        }
        else {
            // execute prepared sql with same bindings
            const query = this._preparedSql.query || '';
            const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
            this._database.run(query, ...parametes, callback);
        }
        return this;
    }
    get(...params) {
        var _a;
        const { args, callback } = (0, utilities_1.popCallback)(params || []);
        if ((args === null || args === void 0 ? void 0 : args.length) > 0) {
            // apply new bindings then execute
            this.bind(...args, () => {
                var _a;
                const query = this._preparedSql.query || '';
                const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
                this._database.get(query, ...parametes, callback);
            });
        }
        else {
            // execute prepared sql with same bindings
            const query = this._preparedSql.query || '';
            const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
            this._database.get(query, ...parametes, callback);
        }
        return this;
    }
    all(...params) {
        var _a;
        const { args, callback } = (0, utilities_1.popCallback)(params || []);
        if ((args === null || args === void 0 ? void 0 : args.length) > 0) {
            // apply new bindings then execute
            this.bind(...args, () => {
                var _a;
                const query = this._preparedSql.query || '';
                const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
                this._database.all(query, ...parametes, callback);
            });
        }
        else {
            // execute prepared sql with same bindings
            const query = this._preparedSql.query || '';
            const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : [])];
            this._database.all(query, ...parametes, callback);
        }
        return this;
    }
    each(...params) {
        var _a;
        const { args, callback, complete } = (0, utilities_1.popCallback)(params);
        if ((args === null || args === void 0 ? void 0 : args.length) > 0) {
            // apply new bindings then execute
            this.bind(...args, () => {
                var _a;
                const query = this._preparedSql.query || '';
                const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : []), ...[callback, complete]];
                this._database.each(query, ...parametes);
            });
        }
        else {
            // execute prepared sql with same bindings
            const query = this._preparedSql.query || '';
            const parametes = [...((_a = this._preparedSql.parameters) !== null && _a !== void 0 ? _a : []), ...[callback, complete]];
            this._database.each(query, ...parametes);
        }
        return this;
    }
}
exports.Statement = Statement;