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class Status < ApplicationRecord
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include Paginable
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include Streamable
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belongs_to :account , - > { with_counters } , inverse_of : :statuses
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belongs_to :thread , foreign_key : 'in_reply_to_id' , class_name : 'Status' , inverse_of : :replies
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belongs_to :reblog , foreign_key : 'reblog_of_id' , class_name : 'Status' , inverse_of : :reblogs , touch : true
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has_many :favourites , inverse_of : :status , dependent : :destroy
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has_many :reblogs , foreign_key : 'reblog_of_id' , class_name : 'Status' , inverse_of : :reblog , dependent : :destroy
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has_many :replies , foreign_key : 'in_reply_to_id' , class_name : 'Status' , inverse_of : :thread
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has_many :mentions , dependent : :destroy
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has_many :media_attachments , dependent : :destroy
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has_and_belongs_to_many :tags
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validates :account , presence : true
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validates :uri , uniqueness : true , unless : 'local?'
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validates :text , presence : true , length : { maximum : 500 } , if : proc { | s | s . local? && ! s . reblog? }
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validates :reblog , uniqueness : { scope : :account , message : 'of status already exists' } , if : 'reblog?'
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default_scope { order ( 'id desc' ) }
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scope :with_counters , - > { select ( 'statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count' ) }
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scope :with_includes , - > { includes ( :account , :media_attachments , :tags , :stream_entry , mentions : :account , reblog : [ :account , mentions : :account ] , thread : :account ) }
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def local?
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uri . nil?
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end
def reblog?
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! reblog_of_id . nil?
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end
def reply?
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! in_reply_to_id . nil?
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end
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def verb
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reblog? ? :share : :post
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end
def object_type
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reply? ? :comment : :note
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end
def content
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reblog? ? reblog . text : text
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end
def target
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reblog
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end
def title
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content
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end
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def reblogs_count
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attributes [ 'reblogs_count' ] || reblogs . count
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end
def favourites_count
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attributes [ 'favourites_count' ] || favourites . count
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end
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def ancestors
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ids = ( Status . find_by_sql ( [ 'WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC' , id ] ) - [ self ] ) . pluck ( :id )
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statuses = Status . where ( id : ids ) . with_counters . with_includes . group_by ( & :id )
ids . map { | id | statuses [ id ] . first }
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end
def descendants
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ids = ( Status . find_by_sql ( [ 'WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path' , id ] ) - [ self ] ) . pluck ( :id )
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statuses = Status . where ( id : ids ) . with_counters . with_includes . group_by ( & :id )
ids . map { | id | statuses [ id ] . first }
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end
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class << self
def as_home_timeline ( account )
where ( account : [ account ] + account . following ) . with_includes . with_counters
end
def as_mentions_timeline ( account )
where ( id : Mention . where ( account : account ) . pluck ( :status_id ) ) . with_includes . with_counters
end
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def as_public_timeline ( account = nil )
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query = joins ( 'LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id' ) . where ( 'accounts.silenced = FALSE' )
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unless account . nil?
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query = filter_timeline ( query , account )
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end
query . with_includes . with_counters
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end
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def as_tag_timeline ( tag , account = nil )
query = tag . statuses
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. joins ( 'LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id' )
. where ( 'accounts.silenced = FALSE' )
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unless account . nil?
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query = filter_timeline ( query , account )
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end
query . with_includes . with_counters
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end
def favourites_map ( status_ids , account_id )
Favourite . select ( 'status_id' ) . where ( status_id : status_ids ) . where ( account_id : account_id ) . map { | f | [ f . status_id , true ] } . to_h
end
def reblogs_map ( status_ids , account_id )
select ( 'reblog_of_id' ) . where ( reblog_of_id : status_ids ) . where ( account_id : account_id ) . map { | s | [ s . reblog_of_id , true ] } . to_h
end
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private
def filter_timeline ( query , account )
blocked = Block . where ( account : account ) . pluck ( :target_account_id )
query
. joins ( 'LEFT OUTER JOIN statuses AS parents ON statuses.in_reply_to_id = parents.id' )
. joins ( 'LEFT OUTER JOIN statuses AS reblogs ON statuses.reblog_of_id = reblogs.id' )
. where ( 'parents.account_id NOT IN (?)' , blocked )
. where ( 'statuses.account_id NOT IN (?)' , blocked )
. where ( '(reblogs.id IS NULL OR reblogs.account_id NOT IN (?))' , blocked )
end
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end
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before_validation do
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text . strip!
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end
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end