# Calendar24x7

Represents a group of 24x7 business hours settings in a helpdesk project. In the Workflow API, such a group is called a Calendar24x7.

Extends [Calendar](v1-Calendar.html).

## 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      ```JAVASCRIPT runOn: {removal: true} ```    |
| extensionProperties |  Object  |  The object containing extension properties for this entity and their values. Extension properties are custom properties that might be added to core YouTrack entities by an app. For details about extension properties, see [Extension Properties](apps-extension-properties.html).             Available since 2024.3      ```JAVASCRIPT const entities = require('@jetbrains/youtrack-scripting-api/entities');  exports.rule = entities.Issue.action({     command: 'test',     action: function (ctx) {         const printValues = () => {             return 'stringProp:' + ctx.issue.extensionProperties.stringProp + ';'                 + 'integerProp:' + ctx.issue.extensionProperties.integerProp + ';'                 + 'booleanProp:' + ctx.issue.extensionProperties.booleanProp + ';'                 + 'issueProp:' + ctx.issue.extensionProperties.issueProp?.id + ';'                 + 'issuesProp:' + ctx.issue.extensionProperties.issuesProp?.first()?.id + ';'         }         ctx.issue.addComment(printValues());     } }); ```    |
| isNew |  Boolean  | Read-only.  When `true`, the entity is created in the current transaction. Otherwise, `false`.             Available since 2018.2.42351    |

## Methods

### findByExtensionProperties

```JAVASCRIPT
static findByExtensionProperties(extensionPropertiesQuery)
```

Searches for Calendar24x7 entities with extension properties that match the specified query.

Available since 2024.3.43260

Parameters
: | Name | Type | Description |
: | --- | --- | --- |
: | extensionPropertiesQuery |  Object  |  The extension properties query, defined as a set of key-value pairs representing properties and their corresponding values.                     |

Return Value
: | Type | Description |
: | --- | --- |
: |  [Set](v1-Set.html).<[Calendar24x7]()>  |  The set of Calendar24x7 entities that contain the specified extension properties.                 |

Example
: ```JAVASCRIPT
: {
: property1: "value1",
: property2: "value2"
: }
: ```

### instance

```JAVASCRIPT
static instance()
```

Returns an instance of a Calendar24x7 entity.

Return Value
: | Type | Description |
: | --- | --- |
: |  [Calendar24x7]()  |  Returns an instance of a Calendar24x7 entity.                 |

### becomes

```JAVASCRIPT
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

```JAVASCRIPT
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](v1-User.html)  |  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

```JAVASCRIPT
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](v1-User.html)  |  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

```JAVASCRIPT
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

```JAVASCRIPT
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

```JAVASCRIPT
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

```JAVASCRIPT
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

```JAVASCRIPT
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`.                 |

## See also

[Calendar](v1-Calendar.html) [Extension Properties](apps-extension-properties.html) [Set](v1-Set.html) [User](v1-User.html)