This PR fixes two critical bugs with the DATE type, following up the
recent refactor around dates and time zones :
https://github.com/twentyhq/twenty/pull/16544
There are a lot of related bugs in Sentry, this PR should fix all bugs
that are of the form :
`Cannot parse: 2026-02-04T00:00:00.000Z`
# `node-postgres` date type
The package `node-postgres`, used by TypeORM, returns by default a Date
object for the date OID type.
But we can change this behavior without patching anything.
See the documentation for `pg-types` :
https://github.com/brianc/node-pg-types
Our fix is to call `setTypeParser` from `pg` to have the postgres "date"
type returned as a string always.
```ts
export const setPgDateTypeParser = () => {
types.setTypeParser(PG_DATE_TYPE_OID, (val: string) => val);
};
```
Then in server's main.ts :
```ts
const bootstrap = async () => {
setPgDateTypeParser();
```
## Are we safe with this very low-level fix ?
Since TypeORM bypasses a string value returned by `pg` we are safe with
this modification at a very low-level.
```ts
else if (columnMetadata.type === "date") {
value = DateUtils.mixedDateToDateString(value)
}
```
https://github.com/typeorm/typeorm/blob/0ec4079cd3760dc49247a02c54415f16a2a51766/src/driver/postgres/PostgresDriver.ts#L838
```ts
/**
* Converts given value into date string in a "YYYY-MM-DD" format.
*/
static mixedDateToDateString(value: string | Date): string {
if (value instanceof Date) {
return (
this.formatZerolessValue(value.getFullYear(), 4) +
"-" +
this.formatZerolessValue(value.getMonth() + 1) +
"-" +
this.formatZerolessValue(value.getDate())
)
}
return value
}
```
https://github.com/typeorm/typeorm/blob/6f3788b83730463e3b787b2a98bb41695e13caf8/src/util/DateUtils.ts#L28
For reference the original type parser seems to be configured in
node-pg-types, on the 1182 OID, which is an array of date / 1082 OID,
this type parser calls another small library `postgres-date` which
creates a JS Date. I couldn't find a type parser explicitly on 1082 in
the stack TypeORM -> node-postgres -> node-pg-types -> postgres-date
```ts
register(1182, parseStringArray) // date[]
```
https://github.com/brianc/node-pg-types/blob/26bfe645a8ddc0c73830b1b8c63f2c4f8265b24f/lib/textParsers.js#L168C19-L168C45
```ts
static parse (dateString) {
return new PGDateParser(dateString).getJSDate()
}
```
https://github.com/bendrucker/postgres-date/blob/b3060560ed62c250f7800d29e4b68a9d5a0622bd/index.js#L285
# Calendar view mixing DATE and DATE_TIME
At the time of the refactor, DATE type wasn't properly tested with
calendar view, thus the drag and drop of a card with a calendar view on
a DATE field and not a DATE_TIME field, was not working, this is now
fixed.
Lucas Bordeau
6b14cfaa89