// ConfigSettings returns the complete set of service charm config
// settings available to each given unit.
func (u *UniterAPI) ConfigSettings(args params.Entities) (params.ConfigSettingsResults, error) {
result := params.ConfigSettingsResults{
Results: make([]params.ConfigSettingsResult, len(args.Entities)),
}
canAccess, err := u.accessUnit()
if err != nil {
return params.ConfigSettingsResults{}, err
}
for i, entity := range args.Entities {
err := common.ErrPerm
if canAccess(entity.Tag) {
var unit *state.Unit
unit, err = u.getUnit(entity.Tag)
if err == nil {
var settings charm.Settings
settings, err = unit.ConfigSettings()
if err == nil {
result.Results[i].Settings = params.ConfigSettings(settings)
}
}
}
result.Results[i].Error = common.ServerError(err)
}
return result, nil
}