BaseArticleAttachment
The base class for article comment.
Extends PersistentFile.
Properties
Name | Type | Description |
|---|---|---|
becomesRemoved | Boolean | Read-only. When `true`, the entity is removed in the current transaction. Otherwise, `false`. This property can become `true` only in on-change rules when the rule is triggered on the removal of an issue or an article. In the rule code, the `runOn` rule property must contain the `removal` parameter set to `true`. Available since 2017.4.37915 |
charset | String | Read-only. The charset type of the file. Only applicable to text files. Available since 2019.2.53994 |
extension | String | Read-only. The extension that defines the file type. |
isNew | Boolean | Read-only. When `true`, the entity is created in the current transaction. Otherwise, `false`. Available since 2018.2.42351 |
mimeType | String | Read-only. The MIME type of the file. Available since 2019.2.53994 |
name | String | Read-only. The name of the file. |
size | Number | Read-only. The size of the attached file in bytes. |
Methods
findByExtensionProperties
static findByExtensionProperties(extensionPropertiesQuery)Searches PersistentFile by the extension properties query.
Available since 2024.3.43260
Parameters
Name | Type | Description |
|---|---|---|
extensionPropertiesQuery | Object | The extension properties query. |
Return Value
Type | Description |
|---|---|
Set.<PersistentFile> | The set of PersistentFile entities found by the extension properties query. |
Example
{
property1: "value1",
property2: "value2"
}
becomes
becomes(fieldName, expected)Checks whether a field is set to an expected value in the current transaction.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field to check. |
expected | string | The expected value. |
Return Value
Type | Description |
|---|---|
boolean | If the field is set to the expected value, returns `true`. |
canBeReadBy
canBeReadBy(fieldName, user)Checks whether a user has permission to read the field.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field. |
user | User | The user for whom the permission to read the field is checked. |
Return Value
Type | Description |
|---|---|
boolean | If the user can read the field, returns `true`. |
canBeWrittenBy
canBeWrittenBy(fieldName, user)Checks whether a user has permission to update the field.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field. |
user | User | The user for whom the permission to update the field is checked. |
Return Value
Type | Description |
|---|---|
boolean | If the user can update the field, returns `true`. |
is
is(fieldName, expected)Checks whether a field is equal to an expected value.
Available since 2019.2.55603
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field to check. |
expected | string | The expected value. |
Return Value
Type | Description |
|---|---|
boolean | If the field is equal to the expected value, returns `true`. |
isChanged
isChanged(fieldName)Checks whether the value of a field is changed in the current transaction.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field to check. |
Return Value
Type | Description |
|---|---|
boolean | If the value of the field is changed in the current transaction, returns `true`. |
oldValue
oldValue(fieldName)Returns the previous value of a single-value field before an update was applied. If the field is not changed in the transaction, returns null.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field. |
Return Value
Type | Description |
|---|---|
Object | If the field is changed in the current transaction, the previous value of the field. Otherwise, null. |
required
required(fieldName, message)Asserts that a value is set for a field. If a value for the required field is not set, the specified message is displayed in the user interface.
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field to check. |
message | string | The message that is displayed to the user that describes the field requirement. |
was
was(fieldName, expected)Checks whether a field was equal to an expected value prior to the current transaction.
Available since 2019.2.55603
Parameters
Name | Type | Description |
|---|---|---|
fieldName | string | The name of the field to check. |
expected | string | The expected value. |
Return Value
Type | Description |
|---|---|
boolean | If the field was equal to the expected value, returns `true`. |