private static Comment CreateCommentFromRow(StoryBlogDbContext context, CsvRow row)
{
var id = row.Fields[0].ReadAs <long>();
var entity = context.Comments
.AsNoTracking()
.SingleOrDefault(comment => comment.Id == id);
if (null != entity)
{
return(entity);
}
entity = new Comment
{
Id = id,
Content = row.Fields[1].Text,
AuthorId = row.Fields[2].ReadAs <long>(),
StoryId = row.Fields[3].ReadAs <long>(),
ParentId = null == row.Fields[4].Text ? null : new long?(row.Fields[4].ReadAs <long>()),
IsPublic = row.Fields[5].ReadAs <bool>(),
Status = (CommentStatus)Enum.ToObject(typeof(CommentStatus), row.Fields[6].ReadAs <int>()),
Created = row.Fields[7].ReadAs <DateTime>(),
Modified = null == row.Fields[8].Text ? null : new DateTime?(row.Fields[8].ReadAs <DateTime>())
};
context.Comments.Add(entity);
context.SaveChanges();
return(entity);
}
private static Story CreateStoryFromRow(StoryBlogDbContext context, CsvRow row)
{
var slug = row.Fields[2].Text;
var entity = context.Stories
.AsNoTracking()
.SingleOrDefault(story => story.Slug == slug);
if (null != entity)
{
return(entity);
}
entity = new Story
{
Id = row.Fields[0].ReadAs <uint>(),
Title = row.Fields[1].Text,
Slug = slug,
Content = row.Fields[3].Text,
AuthorId = row.Fields[4].ReadAs <long>(),
Status = (StoryStatus)Enum.ToObject(typeof(StoryStatus), row.Fields[5].ReadAs <int>()),
Created = row.Fields[6].ReadAs <DateTime>(),
Modified = null == row.Fields[7].Text ? null : new DateTime?(row.Fields[7].ReadAs <DateTime>()),
IsPublic = row.Fields[8].ReadAs <bool>()
};
context.Stories.Add(entity);
context.SaveChanges();
return(entity);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="logger"></param>
public static void Seed(StoryBlogDbContext context, Assembly resourceAssembly, ILogger logger)
{
SeedSettings(context, resourceAssembly, logger);
SeedAuthors(context, resourceAssembly, logger);
SeedStories(context, resourceAssembly, logger);
SeedComments(context, resourceAssembly, logger);
SeedRubrics(context, resourceAssembly, logger);
}
private static void SeedComments(StoryBlogDbContext context, Assembly resourceAssembly, ILogger logger)
{
var resource = resourceAssembly.GetManifestResourceStream("StoryBlog.Web.Services.Blog.API.Data.Comments.csv");
using (var reader = new StreamReader(resource, Encoding.UTF8))
{
var document = CsvDocument.CreateFrom(reader);
using (var transaction = context.Database.BeginTransaction())
{
foreach (var row in document.Rows)
{
var comment = CreateCommentFromRow(context, row);
logger.LogDebug($"[SeedComment] Comment \'{comment.Id}\' created");
}
transaction.Commit();
}
}
}
private static Settings CreateSettingFromRow(StoryBlogDbContext context, CsvRow row)
{
var name = row.Fields[0].Text;
var entity = context.Settings
.AsNoTracking()
.SingleOrDefault(setting => setting.Name == name);
if (null != entity)
{
return(entity);
}
entity = new Settings
{
Name = name,
Value = Encoding.UTF8.GetBytes(row.Fields[1].Text)
};
context.Settings.Add(entity);
context.SaveChanges();
return(entity);
}
private static Author CreateAuthorFromRow(StoryBlogDbContext context, CsvRow row)
{
var userName = row.Fields[1].Text;
var author = context.Authors
.AsNoTracking()
.SingleOrDefault(entity => entity.UserName == userName);
if (null != author)
{
return(author);
}
author = new Author
{
Id = row.Fields[0].ReadAs <long>(),
UserName = userName
};
context.Authors.Add(author);
context.SaveChanges();
return(author);
}
private static Rubric CreateRubricFromRow(StoryBlogDbContext context, CsvRow row)
{
var id = row.Fields[0].ReadAs <long>();
var entity = context.Rubrics
.AsNoTracking()
.SingleOrDefault(rubric => rubric.Id == id);
if (null != entity)
{
return(entity);
}
entity = new Rubric
{
Id = id,
Name = row.Fields[1].Text,
Slug = row.Fields[2].Text
};
context.Rubrics.Add(entity);
context.SaveChanges();
return(entity);
}
