kysely
Version:
Type safe SQL query builder
69 lines (68 loc) • 2.04 kB
JavaScript
/// <reference types="./mysql-query-compiler.d.ts" />
import { DefaultQueryCompiler } from '../../query-compiler/default-query-compiler.js';
const LITERAL_ESCAPE_REGEX = /\\|'/g;
const ID_WRAP_REGEX = /`/g;
export class MysqlQueryCompiler extends DefaultQueryCompiler {
getCurrentParameterPlaceholder() {
return '?';
}
getLeftExplainOptionsWrapper() {
return '';
}
getExplainOptionAssignment() {
return '=';
}
getExplainOptionsDelimiter() {
return ' ';
}
getRightExplainOptionsWrapper() {
return '';
}
getLeftIdentifierWrapper() {
return ID_WRAP_REGEX.source;
}
getRightIdentifierWrapper() {
return ID_WRAP_REGEX.source;
}
sanitizeIdentifier(identifier) {
return identifier.replace(ID_WRAP_REGEX, '``');
}
/**
* MySQL requires escaping backslashes in string literals when using the
* default NO_BACKSLASH_ESCAPES=OFF mode. Without this, a backslash
* followed by a quote (\') can break out of the string literal.
*
* @see https://dev.mysql.com/doc/refman/9.6/en/string-literals.html
*/
sanitizeStringLiteral(value) {
return value.replace(LITERAL_ESCAPE_REGEX, (char) => char === '\\' ? '\\\\' : "''");
}
visitCreateIndex(node) {
this.append('create ');
if (node.unique) {
this.append('unique ');
}
this.append('index ');
if (node.ifNotExists) {
this.append('if not exists ');
}
this.visitNode(node.name);
if (node.using) {
this.append(' using ');
this.visitNode(node.using);
}
if (node.table) {
this.append(' on ');
this.visitNode(node.table);
}
if (node.columns) {
this.append(' (');
this.compileList(node.columns);
this.append(')');
}
if (node.where) {
this.append(' ');
this.visitNode(node.where);
}
}
}