public void LogModificationToText(Guid textId)
{
if (TextRepository.Exists(textId))
{
Text textOfModdedDocument = TextRepository.GetById(textId);
Content contentOfModdedDocument = textOfModdedDocument.ContentThatBelongs;
if (HeaderRepository.ExistsWithContent(contentOfModdedDocument))
{
Header headerOfModdedDocument = HeaderRepository.GetByContent(contentOfModdedDocument);
LogModificationToDocument(headerOfModdedDocument.DocumentThatBelongs.Id);
}
else if (ParagraphRepository.ExistsWithContent(contentOfModdedDocument))
{
Paragraph paragraphOfModdedDocument = ParagraphRepository.GetByContent(contentOfModdedDocument);
LogModificationToDocument(paragraphOfModdedDocument.DocumentThatBelongs.Id);
}
else if (FooterRepository.ExistsWithContent(contentOfModdedDocument))
{
Footer footerOfModdedDocument = FooterRepository.GetByContent(contentOfModdedDocument);
LogModificationToDocument(footerOfModdedDocument.DocumentThatBelongs.Id);
}
}
else
{
throw new MissingTextException("This text is not in the database.");
}
}