discourse/app/serializers/post_serializer.rb

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class PostSerializer < BasicPostSerializer
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# To pass in additional information we might need
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attr_accessor :topic_slug,
:topic_view,
:parent_post,
:add_raw,
:single_post_link_counts,
:draft_sequence,
:post_actions
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attributes :post_number,
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:post_type,
:updated_at,
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:reply_count,
:reply_to_post_number,
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:quote_count,
:avg_time,
:incoming_link_count,
:reads,
:score,
:yours,
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:topic_slug,
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:topic_id,
:display_username,
:primary_group_name,
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:version,
:can_edit,
:can_delete,
:can_recover,
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:link_counts,
:read,
:user_title,
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:reply_to_user,
:bookmarked,
:raw,
:actions_summary,
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:moderator?,
:staff?,
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:user_id,
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:draft_sequence,
:hidden,
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:hidden_reason_id,
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:trust_level,
:deleted_at,
:deleted_by,
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:user_deleted,
:edit_reason,
:can_view_edit_history
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def moderator?
object.user.try(:moderator?) || false
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end
def staff?
object.user.try(:staff?) || false
end
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def yours
scope.user == object.user
end
def can_edit
scope.can_edit?(object)
end
def can_delete
scope.can_delete?(object)
end
def can_recover
scope.can_recover_post?(object)
end
def display_username
object.user.try(:name)
end
def primary_group_name
return nil unless object.user && @topic_view
return @topic_view.primary_group_names[object.user.primary_group_id] if object.user.primary_group_id
end
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def link_counts
return @single_post_link_counts if @single_post_link_counts.present?
# TODO: This could be better, just porting the old one over
@topic_view.link_counts[object.id].map do |link|
result = {}
result[:url] = link[:url]
result[:internal] = link[:internal]
result[:reflection] = link[:reflection]
result[:title] = link[:title] if link[:title].present?
result[:clicks] = link[:clicks] || 0
result
end
end
def read
@topic_view.read?(object.post_number)
end
def score
object.score || 0
end
def user_title
object.user.try(:title)
end
def trust_level
object.user.try(:trust_level)
end
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def reply_to_user
{
username: object.reply_to_user.username,
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avatar_template: object.reply_to_user.avatar_template
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}
end
def bookmarked
true
end
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def deleted_by
BasicUserSerializer.new(object.deleted_by, root: false).as_json
end
def include_deleted_by?
scope.is_staff? && object.deleted_by.present?
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end
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# Summary of the actions taken on this post
def actions_summary
result = []
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PostActionType.types.each do |sym, id|
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next if [:bookmark].include?(sym)
count_col = "#{sym}_count".to_sym
count = object.send(count_col) if object.respond_to?(count_col)
count ||= 0
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action_summary = {id: id,
count: count,
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hidden: (sym == :vote),
can_act: scope.post_can_act?(object, sym, taken_actions: post_actions)}
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# The following only applies if you're logged in
if action_summary[:can_act] && scope.current_user.present?
action_summary[:can_clear_flags] = scope.is_staff? && PostActionType.flag_types.values.include?(id)
end
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if post_actions.present? && post_actions.has_key?(id)
action_summary[:acted] = true
action_summary[:can_undo] = scope.can_delete?(post_actions[id])
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end
# only show public data
unless scope.is_staff? || PostActionType.public_types.values.include?(id)
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action_summary[:count] = action_summary[:acted] ? 1 : 0
end
result << action_summary
end
result
end
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def include_draft_sequence?
@draft_sequence.present?
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end
def include_slug_title?
@topic_slug.present?
end
def include_raw?
@add_raw.present? && (scope.user.try(:staff?) || yours)
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end
def include_link_counts?
return true if @single_post_link_counts.present?
@topic_view.present? && @topic_view.link_counts.present? && @topic_view.link_counts[object.id].present?
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end
def include_read?
@topic_view.present?
end
def include_reply_to_user?
object.quoteless? && object.reply_to_user
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end
def include_bookmarked?
post_actions.present? && post_actions.keys.include?(PostActionType.types[:bookmark])
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end
def include_display_username?
SiteSetting.enable_names?
end
def can_view_edit_history
scope.can_view_post_revisions?(object)
end
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private
def post_actions
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@post_actions ||= (@topic_view.present? && @topic_view.all_post_actions.present?) ? @topic_view.all_post_actions[object.id] : nil
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end
end