public async Task <BlogPostViewModelResponse> AddPost(BlogPostTagViewModelRequest post)
{
Models.BlogPost blogPost = new Models.BlogPost();
blogPost.Tags = new List <BlogPostTag>();
Tag tag = new Tag();
BlogPostViewModelResponse response = new BlogPostViewModelResponse();
BlogPostTag blogPostTag = new BlogPostTag();
tag.BlogPosts = new List <BlogPostTag>();
if (db != null)
{
//get generated slug
string slug = Helpers.GenerateSlug.ToUrlSlug(post.BlogPost.Title);
//blogPost.Id - automatic generated
blogPost.Slug = response.Slug = slug;
blogPost.Title = response.Title = post.BlogPost.Title;
blogPost.Description = response.Description = post.BlogPost.Description;
blogPost.Body = response.Body = post.BlogPost.Body;
blogPost.CreatedAt = response.CreatedAt = DateTime.Now;
blogPost.UpdatedAt = response.UpdatedAt = DateTime.Now;
response.tagList = post.BlogPost.Tags;
//checking tags
List <string> list = await GetTags();
//records exist in new list /not in db list
List <string> dList = post.BlogPost.Tags.Except(list).ToList();
//add new records in Tag table
for (int i = 0; i < dList.Count; i++)
{
string name = dList.ElementAt(i);
tag.Name = name;
blogPostTag.BlogPost = blogPost;
blogPostTag.Tag = tag;
blogPostTag.BlogPost.Tags.Add(blogPostTag);
//db.SaveChanges();
}
await db.Tags.AddAsync(tag);
await db.BlogPosts.AddAsync(blogPost);
await db.BlogPostTag.AddAsync(blogPostTag);
await db.SaveChangesAsync();
return(response);
}
return(response);
}
public async Task <BlogPostViewModelResponse> UpdatePost(string slug, BlogPostTagViewModelRequest model)
{
BlogPostViewModelResponse response = new BlogPostViewModelResponse();
Models.BlogPost blog = new Models.BlogPost();
blog.Tags = new List <BlogPostTag>();
if (db != null)
{
BlogPostTag foundPost = db.BlogPostTag
.AsNoTracking()
.Include(p => p.BlogPost)
.Include(p => p.Tag)
.Where(p => p.BlogPost.Slug == slug).FirstOrDefault();
if (!String.IsNullOrEmpty(model.BlogPost.Title) && model.BlogPost.Title != foundPost.BlogPost.Title)
{
blog.Title = response.Title = model.BlogPost.Title;
blog.Slug = response.Slug = GenerateSlug.ToUrlSlug(blog.Title);
}
blog.Id = foundPost.BlogPostId;
blog.CreatedAt = foundPost.BlogPost.CreatedAt;
blog.UpdatedAt = response.UpdatedAt = DateTime.Now;
blog.Description = response.Description
= !String.IsNullOrEmpty(model.BlogPost.Description) ? model.BlogPost.Description : foundPost.BlogPost.Description;
blog.Body = response.Body
= !String.IsNullOrEmpty(model.BlogPost.Body) ? model.BlogPost.Body : foundPost.BlogPost.Body;
if (model.BlogPost.Tags != null)
{
response.tagList = model.BlogPost.Tags;
}
else
{
blog.Tags = foundPost.BlogPost.Tags;
response.tagList = ConvertToListString(foundPost.BlogPost.Tags);
}
db.BlogPosts.Update(blog);
await db.SaveChangesAsync();
}
return(response);
}
public async Task <string> DeletePost(string slug)
{
if (db != null)
{
Models.BlogPost post = db.BlogPosts.Include(p => p.Tags).Where(p => p.Slug == slug).FirstOrDefault();
if (post != null)
{
//create BlogPostTag object for delete (relationship with BlogPost table
BlogPostTag blogPostTag = new BlogPostTag();
//get BlogPostId from BlogPostTag table, include all Tags
blogPostTag = db.BlogPostTag
.Include(b => b.BlogPost)
.Include(b => b.Tag)
.Where(b => b.BlogPostId == post.Id).FirstOrDefault();
if (blogPostTag != null)
{
db.BlogPostTag.Remove(blogPostTag);
db.BlogPosts.Remove(post);
db.SaveChanges();
}
}
}
return("Record successfully deleted!");
}
