Files
growstuff/app/models/post.rb
2017-06-02 22:43:25 +12:00

82 lines
2.7 KiB
Ruby

class Post < ActiveRecord::Base
extend FriendlyId
include Likeable
friendly_id :author_date_subject, use: [:slugged, :finders]
belongs_to :author, class_name: 'Member'
belongs_to :forum
has_many :comments, dependent: :destroy
has_and_belongs_to_many :crops # rubocop:disable Rails/HasAndBelongsToMany
before_destroy { |post| post.crops.clear }
after_save :update_crops_posts_association
# also has_many notifications, but kinda meaningless to get at them
# from this direction, so we won't set up an association for now.
after_create do
recipients = []
sender = author.id
body.scan(Haml::Filters::GrowstuffMarkdown::MEMBER_REGEX) do |_m|
# find member case-insensitively and add to list of recipients
member = Member.case_insensitive_login_name(Regexp.last_match(1)).first
recipients << member if member && !recipients.include?(member)
end
body.scan(Haml::Filters::GrowstuffMarkdown::MEMBER_AT_REGEX) do |_m|
# find member case-insensitively and add to list of recipients
member = Member.case_insensitive_login_name(Regexp.last_match(1)[1..-1]).first
recipients << member if member && !recipients.include?(member)
end
# don't send notifications to yourself
recipients.map(&:id).each do |recipient|
next unless recipient != sender
Notification.create(
recipient_id: recipient,
sender_id: sender,
subject: "#{author} mentioned you in their post #{subject}",
body: body
)
end
end
default_scope { joins(:author).order(created_at: :desc) }
validates :subject,
presence: true,
length: { maximum: 255 }
def author_date_subject
# slugs are created before created_at is set
time = created_at || Time.zone.now
"#{author.login_name} #{time.strftime('%Y%m%d')} #{subject}"
end
def comment_count
comments.size
end
# return the timestamp of the most recent activity on this post
# i.e. the time of the most recent comment, or of the post itself if
# there are no comments.
def recent_activity
comments.present? ? comments.reorder('created_at DESC').first.created_at : created_at
end
# return posts sorted by recent activity
def self.recently_active
Post.all.sort do |a, b|
b.recent_activity <=> a.recent_activity
end
end
private
def update_crops_posts_association
crops.destroy_all
# look for crops mentioned in the post. eg. [tomato](crop)
body.scan(Haml::Filters::GrowstuffMarkdown::CROP_REGEX) do |_m|
# find crop case-insensitively
crop = Crop.case_insensitive_name(Regexp.last_match(1)).first
# create association
crops << crop if crop && !crops.include?(crop)
end
end
end