@mas-soft/mas-core-server/dist/src/core-module/connectors/parametrized-sql.js

main application

'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
var assert = require('assert');
const PLACEHOLDER = '?';
class ParameterizedSQL {
    constructor(sql, params) {
        this.toJSON = function () {
            return {
                sql: this.sql,
                params: this.params,
            };
        };
        if (!(this instanceof ParameterizedSQL)) {
            return new ParameterizedSQL(sql, params);
        }
        sql = sql || '';
        if (arguments.length === 1 && typeof sql === 'object') {
            this.sql = sql.sql;
            this.params = sql.params || [];
        }
        else {
            this.sql = sql != null ? sql.toString() : '';
            this.params = params || [];
        }
        assert(typeof this.sql === 'string', 'sql must be a string');
        assert(Array.isArray(this.params), 'params must be an array');
        let parts = this.sql.split(PLACEHOLDER);
        assert(parts.length - 1 === this.params.length, 'The number of ? (' + (parts.length - 1) +
            ') in the sql (' + this.sql + ') must match the number of params (' +
            this.params.length +
            ') ' + this.params);
    }
    merge(ps, separator) {
        if (Array.isArray(ps)) {
            return ParameterizedSQL.append(this, ParameterizedSQL.join(ps, separator), separator);
        }
        else {
            return ParameterizedSQL.append(this, ps, separator);
        }
    }
    ;
    static append(currentStmt, stmt, separator) {
        currentStmt = (currentStmt instanceof ParameterizedSQL) ?
            currentStmt : new ParameterizedSQL(currentStmt);
        stmt = (stmt instanceof ParameterizedSQL) ? stmt :
            new ParameterizedSQL(stmt);
        separator = typeof separator === 'string' ? separator : ' ';
        if (currentStmt.sql) {
            currentStmt.sql += separator;
        }
        if (stmt.sql) {
            currentStmt.sql += stmt.sql;
        }
        currentStmt.params = (currentStmt.params || []).concat(stmt.params || []);
        return currentStmt;
    }
    ;
    static join(sqls, separator) {
        assert(Array.isArray(sqls), 'sqls must be an array');
        let ps = new ParameterizedSQL('', []);
        for (var i = 0, n = sqls.length; i < n; i++) {
            this.append(ps, sqls[i], separator);
        }
        return ps;
    }
    ;
}
ParameterizedSQL.PLACEHOLDER = PLACEHOLDER;
exports.ParameterizedSQL = ParameterizedSQL;
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