# \_addAppointment

Adds a specified Appointment to a specified Contract.

If the Appointment is already linked to another Contract, it will be automatically removed from that Contract.

### Parameters

#### id

The ID of the Contract.

#### aid

The ID of the Appointment to add to the Contract.

### Example

```
FM_api('Contract_addAppointment', ['id' => '123', 'aid' => '456']);
```

### Result

#### On Success

```
{'ok':1}
```

#### On Failure

If the User is not logged in:

```
{'error':'not logged in'}
```

If the Contract ID is not specified:

```
{'error':'missing id parameter'}
```

If the specified Contract does not exist:

```
{'error':'Contract does not exist'}
```

If the Appointment ID is not specified:

```
{'error':'missing aid parameter'}
```

If the Appointment is already linked to the Contract:

```
{'warning':'appointment already linked to contract'}
```