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Fix the error returned when class already exists (#2955)

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* Fix the error returned when class already exists

* Wrap the class creation in a transaction
This commit is contained in:
Kulshekhar Kabra
2016-10-28 21:16:19 +05:30
committed by Florent Vilmart
parent 4a5ed1095c
commit f23c0a57ee
1 changed files with 7 additions and 3 deletions
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10
src/Adapters/Storage/Postgres/PostgresStorageAdapter.js
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@@ -410,14 +410,18 @@ export class PostgresStorageAdapter {
}
createClass(className, schema) {
return this.createTable(className, schema)
.then(() => this._client.none('INSERT INTO "_SCHEMA" ("className", "schema", "isParseClass") VALUES ($<className>, $<schema>, true)', { className, schema }))
return this._client.tx(t => {
const q1 = this.createTable(className, schema);
const q2 = this._client.none('INSERT INTO "_SCHEMA" ("className", "schema", "isParseClass") VALUES ($<className>, $<schema>, true)', { className, schema });
return t.batch([q1, q2]);
})
.then(() => {
return toParseSchema(schema)
})
.catch((err) => {
if (err.code === PostgresUniqueIndexViolationError && err.detail.includes(className)) {
throw new Parse.Error(Parse.Error.INVALID_CLASS_NAME, `Class ${className} already exists.`)
throw new Parse.Error(Parse.Error.DUPLICATE_VALUE, `Class ${className} already exists.`)
}
throw err;
})