public void ShouldAssignExistingTagIfItIsADuplicate()
{
var webpage = new BasicMappedWebpage();
webpage.Tags.Should().HaveCount(0);
A.CallTo(() => _getExistingTag.GetTag("test")).Returns(null);
_sut.SetTags(_tags,
webpage);
webpage.Tags.Should().HaveCount(1);
webpage.Tags.ElementAt(0).Name.Should().Be("test");
}
public void SetTags(List <string> taglist, Document document)
{
var tagsToAdd =
taglist.Where(
s => !document.Tags.Select(tag => tag.Name).Contains(s, StringComparer.InvariantCultureIgnoreCase))
.ToList();
var tagsToRemove =
document.Tags.Where(
tag => !taglist.Contains(tag.Name, StringComparer.InvariantCultureIgnoreCase)).ToList();
foreach (var item in tagsToAdd)
{
var tag = _getExistingTag.GetTag(item);
var isNew = tag == null;
if (isNew)
{
tag = new Tag {
Name = item
};
_tagRepository.Add(tag);
}
if (!document.Tags.Contains(tag))
{
document.Tags.Add(tag);
}
if (!tag.Documents.Contains(document))
{
tag.Documents.Add(document);
}
_tagRepository.Update(tag);
}
foreach (var tag in tagsToRemove)
{
document.Tags.Remove(tag);
tag.Documents.Remove(document);
_tagRepository.Update(tag);
}
}
