public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (parameter == null)
{
parameter = this.PropertyName;
}
if (value != null && parameter is string propertyName)
{
if (value is IDataBaseDescriptor descriptor)
{
if (propertyName == IsLoaded)
{
return(DataBaseDescriptorUtility.IsLoaded(Authenticator.Current, descriptor));
}
}
else
{
var prop = value.GetType().GetProperty(propertyName);
if (prop != null)
{
return(prop.GetValue(value));
}
}
}
return(value);
}
public static bool CanDelete(Authentication authentication, IDataBaseDescriptor descriptor)
{
if (DataBaseDescriptorUtility.IsLoaded(authentication, descriptor) == true)
{
return(false);
}
return(authentication.Authority == Authority.Admin);
}
public static bool CanUnload(Authentication authentication, IDataBaseDescriptor descriptor)
{
if (DataBaseDescriptorUtility.IsLoaded(authentication, descriptor) == false)
{
return(false);
}
if (descriptor is IPermissionDescriptor permissionDescriptor)
{
return(permissionDescriptor.AccessType >= AccessType.Owner);
}
return(authentication.Authority == Authority.Admin);
}
public static bool CanLoad(Authentication authentication, IDataBaseDescriptor descriptor)
{
if (DataBaseDescriptorUtility.IsLoaded(authentication, descriptor) == true)
{
return(false);
}
if (descriptor is IAccessibleDescriptor accessibleDescriptor)
{
return(AccessibleDescriptorUtility.IsPrivate(authentication, accessibleDescriptor) == false && authentication.Authority == Authority.Admin);
}
return(authentication.Authority == Authority.Admin);
}
protected async override void OnExecute(object parameter)
{
var dialog = new SelectDataBaseViewModel(this.authenticator, this.cremaAppHost, (s) => DataBaseDescriptorUtility.IsLoaded(this.authenticator, s) == false);
if (await dialog.ShowDialogAsync() != true)
{
return;
}
if (DataBaseDescriptorUtility.IsLoaded(this.authenticator, dialog.SelectedItem) == true)
{
await AppMessageBox.ShowAsync("현재 사용중인 데이터베이스는 삭제할 수 없습니다.");
return;
}
if (await new DeleteViewModel().ShowDialogAsync() != true)
{
return;
}
await DataBaseUtility.DeleteAsync(this.authenticator, dialog.SelectedItem);
}
