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30 lines
1.5 KiB
30 lines
1.5 KiB
6 years ago
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class PraiseTread < ApplicationRecord
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belongs_to :praise_tread_object, polymorphic: true, counter_cache: :praises_count
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has_many :tidings, :as => :container, :dependent => :destroy
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scope :liker, lambda { where(:praise_or_tread => 1) }
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scope :user_liker, ->(user_id) { where(user_id: user_id, praise_or_tread: 1) }
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scope :by_praise_tread_object_id_and_type, -> (object_id, object_type) { where(praise_tread_object_id: object_id, praise_tread_object_type: object_type)}
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after_create :send_tiding
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def send_tiding
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case self.praise_tread_object_type
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when "Memo","Message","Issue"
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self.tidings << Tiding.new(:trigger_user_id => self.user_id, :user_id => self.praise_tread_object.author_id, :parent_container_id => self.praise_tread_object_id, :parent_container_type => self.praise_tread_object_type, :viewed => 0, :tiding_type => "Praise")
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when "Discuss","Challenge","HomeworkCommon","JournalsForMessage","Journal","GraduationTopic","GraduationTask"
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self.tidings << Tiding.new(:trigger_user_id => self.user_id, :user_id => self.praise_tread_object.user_id, :parent_container_id => self.praise_tread_object_id, :parent_container_type => self.praise_tread_object_type, :viewed => 0, :tiding_type => "Praise")
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end
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end
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def self.find_object_by_type_and_id(id, type)
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type.constantize find_by_id id
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end
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# 用户是否点赞
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def self.user_praise?(user)
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self.select{|pt| pt.user_id == user.id}.length > 0
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end
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end
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