public static Asset MapAsset(IAsset asset)
{
if (asset == null)
{
return(null);
}
Context.Asset result = new Context.Asset();
result.Id = asset.Id;
result.AssetTypeId = (int)asset.AssetType;
result.Title = asset.Title;
result.Description = asset.Description;
result.Url = asset.Url;
/*
* if (asset.Tags != null)
* {
* foreach (var assetTag in asset.Tags)
* {
* if (assetTag.Tags != null)
* {
* var tag = MapTag(assetTag.Tags);
* result.Tags.Add(tag);
* }
* }
* }
*/
return(result);
}
private void AddTags(Context.Asset asset, IAsset value, Dictionary <int, Context.Tag> dicExistingTags)
{
foreach (Contracts.Tag vtag in value.Tags)
{
//If not an existing tag, create a new tag.
Tag tag = dicExistingTags.Values.FirstOrDefault(t => t.Title.ToLower() == vtag.Name.ToLower());
if (tag == null)
{
asset.AssetTags.Add(new AssetTag()
{
Asset = asset,
Tags = new Tag()
{
Title = vtag.Name,
IsActive = true
}
});
}
else if (!asset.AssetTags.Any(t => t.Tags.Id == tag.Id))
{
asset.AssetTags.Add(new AssetTag()
{
Asset = asset,
Tags = tag
});
}
}
}
private void MarkAssetTagsForDelete(Context.Asset asset, Dictionary <int, Context.Tag> dicExistingTags)
{
if (asset.AssetTags != null)
{
for (int i = asset.AssetTags.Count - 1; i >= 0; i--)
{
Context.AssetTag at = asset.AssetTags.ElementAt(i);
if (!dicExistingTags.ContainsKey(at.TagId))
{
this.Context.Entry(at).State = EntityState.Deleted;
}
}
}
}
private Context.Asset ProcessTags(Context.Asset asset, IAsset value)
{
if (value.Tags == null || value.Tags.Count == 0)
{
return(asset);
}
Dictionary <int, Context.Tag> dicExistingTags = this.GetTags(value);
//Remove Tags from Asset that don't match List.
//This means that the user has deleted some tags and we want to remove the association.
this.MarkAssetTagsForDelete(asset, dicExistingTags);
//Add Tags.
this.AddTags(asset, value, dicExistingTags);
return(asset);
}
