51 lines
1.6 KiB
Ruby
51 lines
1.6 KiB
Ruby
class RequestForComment < ActiveRecord::Base
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include Creation
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belongs_to :submission
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belongs_to :exercise
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belongs_to :file, class_name: 'CodeOcean::File'
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before_create :set_requested_timestamp
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def self.last_per_user(n = 5)
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from("(#{row_number_user_sql}) as request_for_comments").where("row_number <= ?", n)
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end
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def set_requested_timestamp
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self.requested_at = Time.now
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end
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# not used right now, finds the last submission for the respective user and exercise.
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# might be helpful to check whether the exercise has been solved in the meantime.
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def last_submission
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Submission.find_by_sql(" select * from submissions
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where exercise_id = #{exercise_id} AND
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user_id = #{user_id}
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order by created_at desc
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limit 1").first
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end
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# not used any longer, since we directly saved the submission_id now.
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# Was used before that to determine the submission belonging to the request_for_comment.
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def last_submission_before_creation
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Submission.find_by_sql(" select * from submissions
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where exercise_id = #{exercise_id} AND
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user_id = #{user_id} AND
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'#{created_at.localtime}' > created_at
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order by created_at desc
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limit 1").first
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end
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def comments_count
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submission.files.map { |file| file.comments.size}.sum
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end
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def to_s
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"RFC-" + self.id.to_s
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end
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private
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def self.row_number_user_sql
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select("id, user_id, exercise_id, file_id, question, created_at, updated_at, user_type, solved, submission_id, row_number() OVER (PARTITION BY user_id ORDER BY created_at DESC) as row_number").to_sql
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end
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end
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