/// <summary>
/// This method deletes a 'Image' object.
/// </summary>
/// <param name='List<PolymorphicObject>'>The 'Image' to delete.
/// <returns>A PolymorphicObject object with a Boolean value.
internal PolymorphicObject DeleteImage(List <PolymorphicObject> parameters, DataConnector dataConnector)
{
// Initial Value
PolymorphicObject returnObject = new PolymorphicObject();
// If the data connection is connected
if ((dataConnector != null) && (dataConnector.Connected == true))
{
// Create Delete StoredProcedure
DeleteImageStoredProcedure deleteImageProc = null;
// verify the first parameters is a(n) 'Image'.
if (parameters[0].ObjectValue as Image != null)
{
// Create Image
Image image = (Image)parameters[0].ObjectValue;
// verify image exists
if (image != null)
{
// Now create deleteImageProc from ImageWriter
// The DataWriter converts the 'Image'
// to the SqlParameter[] array needed to delete a 'Image'.
deleteImageProc = ImageWriter.CreateDeleteImageStoredProcedure(image);
}
}
// Verify deleteImageProc exists
if (deleteImageProc != null)
{
// Execute Delete Stored Procedure
bool deleted = this.DataManager.ImageManager.DeleteImage(deleteImageProc, dataConnector);
// Create returnObject.Boolean
returnObject.Boolean = new NullableBoolean();
// If delete was successful
if (deleted)
{
// Set returnObject.Boolean.Value to true
returnObject.Boolean.Value = NullableBooleanEnum.True;
}
else
{
// Set returnObject.Boolean.Value to false
returnObject.Boolean.Value = NullableBooleanEnum.False;
}
}
}
else
{
// Raise Error Data Connection Not Available
throw new Exception("The database connection is not available.");
}
// return value
return(returnObject);
}