// Add tags in a graph to the database
public async Task AddTags(Graph g, String keywords, Dataset dataset)
{
String[] keywordsList = keywords.Split(",");
IEnumerable <Tags> existingTags = await _tagsRepository.ListAsync();
foreach (String keyword in keywordsList)
{
Tags existingTag = null;
foreach (Tags tag in existingTags)
{
if (tag.Name.ToLower().Equals(keyword.ToLower()))
{
existingTag = tag;
break;
}
}
if (existingTag != null)
{
DatasetTags datasetTag = new DatasetTags {
Dataset = dataset, Tags = existingTag
};
dataset.DatasetTags.Add(datasetTag);
}
else
{
Tags tag = new Tags {
Name = keyword
};
await _tagsRepository.AddAsync(tag);
await _unitOfWork.CompleteAsync();
DatasetTags datasetTag = new DatasetTags {
Dataset = dataset, Tags = tag
};
dataset.DatasetTags.Add(datasetTag);
await _unitOfWork.CompleteAsync();
}
}
}
public async Task <IEnumerable <Tags> > ListAsync()
{
return(await _tagsRepository.ListAsync());
}
