@riao/dbal/builder/sql-builder.js

riao database

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SqlBuilder = void 0;
const builder_1 = require("./builder");
class SqlBuilder extends builder_1.Builder {
    constructor() {
        super(...arguments);
        this.sql = '';
        this.params = [];
        this.usePlaceholders = true;
        this.operators = {
            closeParens: ')',
            openParens: '(',
            endStatement: ';',
            equals: '=',
            like: 'LIKE',
            notEqual: '!=',
            negate: '!',
            lt: '<',
            lte: '<=',
            gt: '>',
            gte: '>=',
            and: 'AND',
            or: 'OR',
            null: 'NULL',
            is: 'IS',
            in: 'IN',
            between: 'BETWEEN',
            openEnclosure: '"',
            closeEnclosure: '"',
            addition: '+',
            subtraction: '-',
            multiplication: '*',
            division: '/',
            modulo: '%',
        };
    }
    toDatabaseQuery() {
        return {
            sql: this.sql.trim(),
            params: this.params,
        };
    }
    // ------------------------------------------------------------------------
    // SQL utility functions
    // ------------------------------------------------------------------------
    append(str) {
        this.sql += str;
        return this;
    }
    appendParams(params) {
        this.params = this.params.concat(params);
    }
    space() {
        this.sql += ' ';
        return this;
    }
    commaSeparate(strings) {
        this.sql += strings.join(', ');
        return this;
    }
    openParens() {
        this.sql += this.operators.openParens;
        return this;
    }
    closeParens() {
        this.sql = this.sql.trimEnd();
        this.sql += this.operators.closeParens + ' ';
        return this;
    }
    trimEnd(s) {
        this.sql = this.sql.trimEnd();
        if (s) {
            s = s.trimEnd();
            this.sql = this.sql.substring(0, this.sql.length - s.length);
        }
        return this;
    }
    endStatement() {
        this.sql += this.operators.endStatement + ' ';
        return this;
    }
    // ------------------------------------------------------------------------
    // Column/Table reference enclosure
    // ------------------------------------------------------------------------
    encloseString(str) {
        if (!str) {
            return str;
        }
        return (this.operators.openEnclosure + str + this.operators.closeEnclosure);
    }
    getEnclosedName(str) {
        if (str.includes('.')) {
            return str
                .split('.')
                .map((part) => this.encloseString(part))
                .join('.');
        }
        else {
            return this.encloseString(str);
        }
    }
    tableName(name) {
        this.sql += this.getEnclosedName(name);
        return this;
    }
    columnName(name) {
        this.sql += this.getEnclosedName(name);
        return this;
    }
    // ------------------------------------------------------------------------
    // Placeholders
    // ------------------------------------------------------------------------
    enablePlaceholders() {
        this.usePlaceholders = true;
        return this;
    }
    disablePlaceholders() {
        this.usePlaceholders = false;
        return this;
    }
    appendPlaceholder(value) {
        this.sql += '? ';
        return this;
    }
    placeholder(value) {
        if (this.usePlaceholders) {
            this.appendPlaceholder(value);
            this.params.push(value);
        }
        else {
            this.appendValue(value);
        }
        return this;
    }
    appendValue(value) {
        if (value === null) {
            this.appendNull();
        }
        else if (typeof value === 'string') {
            this.appendStringValue(value);
        }
        else {
            this.append(value);
        }
        return this;
    }
    appendNull() {
        this.append(this.operators.null);
        return this;
    }
    appendStringValue(value) {
        this.append(`'${value}'`);
        return this;
    }
}
exports.SqlBuilder = SqlBuilder;
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