ducky/devices

     1.1 --- a/devices.go	Fri Nov 27 11:32:15 2015 -0800
     1.2 +++ b/devices.go	Sat Nov 28 18:26:03 2015 -0800
     1.3 @@ -78,6 +78,9 @@
     1.4  	ListDevicesByOwner(user uuid.ID, c context.Context) ([]Device, error)
     1.5  }
     1.6  
     1.7 +// ErrDeviceAlreadyExists is returned when a Device is added to a Storer, but a
     1.8 +// Device with the same ID already exists in the Storer. The ID underlying
     1.9 +// ErrDeviceAlreadyExists will hold the ID that already exists.
    1.10  type ErrDeviceAlreadyExists uuid.ID
    1.11  
    1.12  func (e ErrDeviceAlreadyExists) Error() string {
    1.13 @@ -207,6 +210,8 @@
    1.14  	return devices, err
    1.15  }
    1.16  
    1.17 +// ToMap transforms the passed slice into a map by using the String method of
    1.18 +// each Device's ID as the key, and the Device as the value.
    1.19  func ToMap(devices []Device) map[string]Device {
    1.20  	results := make(map[string]Device, len(devices))
    1.21  	for _, device := range devices {
    1.22 @@ -215,6 +220,7 @@
    1.23  	return results
    1.24  }
    1.25  
    1.26 +// ToSlice transforms the passed map of Devices into a slice of Devices.
    1.27  func ToSlice(devices map[string]Device) []Device {
    1.28  	results := make([]Device, 0, len(devices))
    1.29  	for _, device := range devices {