# new TimestampValidator(value, oldValue, messageopt)
Validates the update of a timestamp by comparing the new timestamp with the old one, ensuring the new timestamp is more recent.
A validator that ensures timestamp values are only updated with newer timestamps.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
value |
Date
|
string
|
number
|
The timestamp value to validate |
|
oldValue |
Date
|
string
|
number
|
The previous timestamp to compare against |
|
message |
string
|
<optional> |
Optional custom error message |
Example
// Using TimestampValidator with a timestamp property
class Document {
Methods
# hasErrors(value, args) → {string|undefined}
This method is required by the Validator interface but not used in this validator as validation only happens during updates.
Implementation of the base validator's hasErrors method.
Parameters:
| Name | Type | Description |
|---|---|---|
value |
any
|
The timestamp value to validate |
args |
Array.<any>
|
Additional arguments |
Always returns undefined as this validator only works during updates
string
|
undefined
# updateHasErrors(value, oldValue, messageopt) → {string|undefined}
Checks if a timestamp has been updated with a more recent value by converting both values to Date objects and comparing them.
Validates that a timestamp is newer than its previous value.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
value |
Date
|
string
|
number
|
The new timestamp value to validate |
|
oldValue |
Date
|
string
|
number
|
The original timestamp to compare against |
|
message |
string
|
<optional> |
Optional custom error message to override the default |
An error message if validation fails (new timestamp is not newer), undefined otherwise
string
|
undefined