kysely
Version:
Type safe SQL query builder
73 lines (72 loc) • 2.63 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.MssqlQueryCompiler = void 0;
const default_query_compiler_js_1 = require("../../query-compiler/default-query-compiler.js");
class MssqlQueryCompiler extends default_query_compiler_js_1.DefaultQueryCompiler {
getCurrentParameterPlaceholder() {
return `@${this.numParameters}`;
}
visitOffset(node) {
super.visitOffset(node);
this.append(' rows');
}
// mssql allows multi-column alterations in a single statement,
// but you can only use the command keyword/s once.
// it also doesn't support multiple kinds of commands in the same
// alter table statement, but we compile that anyway for the sake
// of WYSIWYG.
compileColumnAlterations(columnAlterations) {
const nodesByKind = {};
for (const columnAlteration of columnAlterations) {
if (!nodesByKind[columnAlteration.kind]) {
nodesByKind[columnAlteration.kind] = [];
}
nodesByKind[columnAlteration.kind].push(columnAlteration);
}
let first = true;
if (nodesByKind.AddColumnNode) {
this.append('add ');
this.compileList(nodesByKind.AddColumnNode);
first = false;
}
// multiple of these are not really supported by mssql,
// but for the sake of WYSIWYG.
if (nodesByKind.AlterColumnNode) {
if (!first)
this.append(', ');
this.compileList(nodesByKind.AlterColumnNode);
}
if (nodesByKind.DropColumnNode) {
if (!first)
this.append(', ');
this.append('drop column ');
this.compileList(nodesByKind.DropColumnNode);
}
// not really supported by mssql, but for the sake of WYSIWYG.
if (nodesByKind.ModifyColumnNode) {
if (!first)
this.append(', ');
this.compileList(nodesByKind.ModifyColumnNode);
}
// not really supported by mssql, but for the sake of WYSIWYG.
if (nodesByKind.RenameColumnNode) {
if (!first)
this.append(', ');
this.compileList(nodesByKind.RenameColumnNode);
}
}
visitAddColumn(node) {
this.visitNode(node.column);
}
visitDropColumn(node) {
this.visitNode(node.column);
}
visitMergeQuery(node) {
super.visitMergeQuery(node);
this.append(';');
}
announcesNewColumnDataType() {
return false;
}
}
exports.MssqlQueryCompiler = MssqlQueryCompiler;