```ruby
class Blog < ApplicationRecord
  include MyplaceonlineActiveRecordIdentityConcern
  include AllowExistingConcern

  def self.properties
    [
      { name: :blog_name, type: ApplicationRecord::PROPERTY_TYPE_STRING },
      { name: :notes, type: ApplicationRecord::PROPERTY_TYPE_MARKDOWN },
      { name: :blog_files, type: ApplicationRecord::PROPERTY_TYPE_FILES },
      { name: :blog_posts, type: ApplicationRecord::PROPERTY_TYPE_CHILDREN },
    ]
  end

  validates :blog_name, presence: true
  
  def display
    blog_name
  end

  child_files

  child_properties(name: :blog_posts, sort: "updated_at DESC")
  
  def identity_file_by_name(name)
    result = nil
    name = name.downcase
    Rails.logger.debug{"Blog.identity_file_by_name searching for: #{name}"}
    self.blog_files.each do |blog_file|
      checkname = blog_file.identity_file.file_file_name.downcase
      i = checkname.rindex(".")
      if !i.nil?
        checkname = checkname[0..i-1]
      end
      Rails.logger.debug{"Blog.identity_file_by_name comparing: #{checkname}"}
      if checkname == name
        result = blog_file.identity_file
      end
    end
    result
  end
end
```

Allow mediawiki image reference by upload page name
user
```ruby
class Blog < ApplicationRecord
  include MyplaceonlineActiveRecordIdentityConcern
  include AllowExistingConcern

  def self.properties
    [
      { name: :blog_name, type: ApplicationRecord::PROPERTY_TYPE_STRING },
      { name: :notes, type: ApplicationRecord::PROPERTY_TYPE_MARKDOWN },
      { name: :blog_files, type: ApplicationRecord::PROPERTY_TYPE_FILES },
      { name: :blog_posts, type: ApplicationRecord::PROPERTY_TYPE_CHILDREN },
    ]
  end

  validates :blog_name, presence: true
  
  def display
    blog_name
  end

  child_files

  child_properties(name: :blog_posts, sort: "updated_at DESC")
  
  def identity_file_by_name(name)
    result = nil
    name = name.downcase
    name2 = name.gsub(" ", "_")
    Rails.logger.debug{"Blog.identity_file_by_name searching for: #{name} or #{name2}"}
    self.blog_files.each do |blog_file|
      checkname = blog_file.identity_file.file_file_name.downcase
      i = checkname.rindex(".")
      if !i.nil?
        checkname = checkname[0..i-1]
      end
      Rails.logger.debug{"Blog.identity_file_by_name comparing: #{checkname}"}
      if checkname == name || checkname == name2
        result = blog_file.identity_file
      end
    end
    result
  end
end
```
assistant