Class: Category

Inherits:
ApplicationRecord show all
Includes:
CommunityRelated
Defined in:
/var/apps/qpixel/app/models/category.rb

Constant Summary collapse

COLORS = 
['turquoise',
'green',
'blue',
'darkblue',
'purple',
'gray',
'bluegray',
'yellow',
'orange',
'pink',
'red'].freeze

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ApplicationRecord

#attributes_print, fuzzy_search, match_search, #match_search, sanitize_for_search, sanitize_name, sanitize_sql_in, useful_err_msg, with_lax_group_rules

Class Method Details

.accessible_to(user) ⇒ ActiveRecord::Relation<Category>

Gets categories appropriately scoped for a given user

Parameters:

  • user (User) —

    user to check

Returns:



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# File '/var/apps/qpixel/app/models/category.rb', line 69

def self.accessible_to(user)
  if user&.at_least_moderator?
    return Category.all
  end

  trust_level = user&.trust_level || 0
  Category.where('min_view_trust_level <= ?', trust_level)
end

.by_id(id) ⇒ Object

@todo: Do we need this method?



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# File '/var/apps/qpixel/app/models/category.rb', line 89

def self.by_id(id)
  categories = Rails.cache.fetch 'categories/by_id' do
    Category.all.to_h { |c| [c.id, c] }
  end
  categories[id]
end

.by_lowercase_name(name) ⇒ Category?

Gets category matching a given name

Parameters:

  • name (String) —

    name of the category

Returns:



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# File '/var/apps/qpixel/app/models/category.rb', line 81

def self.by_lowercase_name(name)
  categories = Rails.cache.fetch 'categories/by_lowercase_name' do
    Category.all.to_h { |c| [c.name.downcase, c.id] }
  end
  Category.find_by(id: categories[name])
end

.search(term) ⇒ ActiveRecord::Relation<Category>

Gets a collection of categories matching a given search term

Parameters:

  • term (String) —

    search term

Returns:



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# File '/var/apps/qpixel/app/models/category.rb', line 99

def self.search(term)
  where('name LIKE ?', "%#{sanitize_sql_like(term)}%")
end

Instance Method Details

#homepage? ⇒ Boolean

Is the category set as the homepage?

Returns:

  • (Boolean) —

    check result



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# File '/var/apps/qpixel/app/models/category.rb', line 32

def homepage?
  is_homepage == true
end

#new_posts_for?(user) ⇒ Boolean

Are there new posts for a given user since their last visit?

Parameters:

  • user (User) —

    user to check

Returns:

  • (Boolean) —

    check result



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# File '/var/apps/qpixel/app/models/category.rb', line 50

def new_posts_for?(user)
  key = "#{community_id}/#{user.id}/#{id}/last_visit"
  Rails.cache.fetch key, expires_in: 5.minutes do
    Rack::MiniProfiler.step "Redis: category last visit (#{key})" do
      activity_key = "#{community_id}/#{id}/last_activity"
      last_visit = RequestContext.redis.get(key)
      last_activity = RequestContext.redis.get(activity_key) || DateTime.parse
      last_visit.nil? || last_activity > DateTime.parse(last_visit)
    end
  end
end

#public? ⇒ Boolean

Can anyone view the category (even if not logged in)?

Returns:

  • (Boolean) —

    check result



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# File '/var/apps/qpixel/app/models/category.rb', line 38

def public?
  trust_level = min_view_trust_level || -1
  trust_level <= 0
end

#top_level_post_types ⇒ Object 



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# File '/var/apps/qpixel/app/models/category.rb', line 43

def top_level_post_types
  post_types.where(is_top_level: true)
end

#update_activity(last_activity) ⇒ Object 



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# File '/var/apps/qpixel/app/models/category.rb', line 62

def update_activity(last_activity)
  RequestContext.redis.set("#{community_id}/#{id}/last_activity", last_activity)
end