old_contents: """
  Custom settings for the blog app.
  """
  
  from django.conf import settings
  
  
  # Height in pixels of the article's heading image
  ARTICLE_HEADING_IMG_HEIGHT = getattr(settings, 'ARTICLE_HEADING_IMG_HEIGHT', 300)
  
  # Width in pixels of the article's heading image
  ARTICLE_HEADING_IMG_WIDTH = getattr(settings, 'ARTICLE_HEADING_IMG_WIDTH', 900)
  
  # Upload directory name for article's heading images.
  ARTICLE_HEADING_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_HEADING_UPLOAD_DIR_NAME', 'headings/')
  
  # Height in pixels of the article's thumbnail image
  ARTICLE_THUMBNAIL_IMG_HEIGHT = getattr(settings, 'ARTICLE_THUMBNAIL_IMG_HEIGHT', 180)
  
  # Width in pixels of the article's thumbnail image
  ARTICLE_THUMBNAIL_IMG_WIDTH = getattr(settings, 'ARTICLE_THUMBNAIL_IMG_WIDTH', 260)
  
  # Upload directory name for article's thumbnail images.
  ARTICLE_THUMBNAIL_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_THUMBNAIL_UPLOAD_DIR_NAME', 'headings_thumbnail/')
  
  # Number of articles per page
  NB_ARTICLES_PER_PAGE = getattr(settings, 'NB_ARTICLES_PER_PAGE', 25)
  
  # Number of articles per page widget
  NB_ARTICLES_PER_PAGE_WIDGET = getattr(settings, 'NB_ARTICLES_PER_PAGE_WIDGET', 5)
  
  # Parent forum ID for all article related forum's thread (None = no related thread created).
  PARENT_FORUM_ID_FOR_ARTICLE_THREADS = getattr(settings, 'PARENT_FORUM_ID_FOR_ARTICLE_THREADS', None)
  
  # Number of articles per feed
  NB_ARTICLES_PER_FEED = getattr(settings, 'NB_ARTICLES_PER_FEED', 10)
  
  # Upload directory name for article's category logos.
  ARTICLE_CATEGORY_LOGO_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_CATEGORY_LOGO_UPLOAD_DIR_NAME', 'category_logos/')
  
  # Height in pixels of the article's category logo
  ARTICLE_CATEGORY_LOGO_HEIGHT = getattr(settings, 'ARTICLE_CATEGORY_LOGO_HEIGHT', 120)
  
  # Width in pixels of the article's category logo
  ARTICLE_CATEGORY_LOGO_WIDTH = getattr(settings, 'ARTICLE_CATEGORY_LOGO_WIDTH', 120)
  
new_contents: """
  Custom settings for the blog app.
  """
  
  from django.conf import settings
  
  
  # Height in pixels of the article's heading image
  ARTICLE_HEADING_IMG_HEIGHT = getattr(settings, 'ARTICLE_HEADING_IMG_HEIGHT', 300)
  
  # Width in pixels of the article's heading image
  ARTICLE_HEADING_IMG_WIDTH = getattr(settings, 'ARTICLE_HEADING_IMG_WIDTH', 900)
  
  # Upload directory name for article's heading images.
  ARTICLE_HEADING_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_HEADING_UPLOAD_DIR_NAME', 'headings/')
  
  # Height in pixels of the article's thumbnail image
  ARTICLE_THUMBNAIL_IMG_HEIGHT = getattr(settings, 'ARTICLE_THUMBNAIL_IMG_HEIGHT', 180)
  
  # Width in pixels of the article's thumbnail image
  ARTICLE_THUMBNAIL_IMG_WIDTH = getattr(settings, 'ARTICLE_THUMBNAIL_IMG_WIDTH', 260)
  
  # Upload directory name for article's thumbnail images.
  ARTICLE_THUMBNAIL_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_THUMBNAIL_UPLOAD_DIR_NAME', 'headings_thumbnail/')
  
  # Number of articles per page
  NB_ARTICLES_PER_PAGE = getattr(settings, 'NB_ARTICLES_PER_PAGE', 25)
  
  # Number of articles per page widget
  NB_ARTICLES_PER_PAGE_WIDGET = getattr(settings, 'NB_ARTICLES_PER_PAGE_WIDGET', 5)
  
  # Parent forum ID for all article related forum's thread (None = no related thread created).
  PARENT_FORUM_ID_FOR_ARTICLE_THREADS = getattr(settings, 'PARENT_FORUM_ID_FOR_ARTICLE_THREADS', None)
  
  # Number of articles per feed
  NB_ARTICLES_PER_FEED = getattr(settings, 'NB_ARTICLES_PER_FEED', 10)
  
  # Upload directory name for article's category logos.
  ARTICLE_CATEGORY_LOGO_UPLOAD_DIR_NAME = getattr(settings, 'ARTICLE_CATEGORY_LOGO_UPLOAD_DIR_NAME', 'category_logos/')
  
  # Height in pixels of the article's category logo
  ARTICLE_CATEGORY_LOGO_HEIGHT = getattr(settings, 'ARTICLE_CATEGORY_LOGO_HEIGHT', 120)
  
  # Width in pixels of the article's category logo
  ARTICLE_CATEGORY_LOGO_WIDTH = getattr(settings, 'ARTICLE_CATEGORY_LOGO_WIDTH', 120)
  
  # Number of days before a published article is "old"
  NB_DAYS_BEFORE_ARTICLE_GET_OLD = getattr(settings, 'NB_DAYS_BEFORE_ARTICLE_GET_OLD', 31 * 6)
  
subject: Add NB_DAYS_BEFORE_ARTICLE_GET_OLD