26 lines
816 B
Ruby
26 lines
816 B
Ruby
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class AddUngradedCountToAssignments < ActiveRecord::Migration
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def self.up
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add_column :assignments, :needs_grading_count, :integer, :default => 0
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execute <<-SQL
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UPDATE assignments SET needs_grading_count = COALESCE((
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SELECT COUNT(*)
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FROM submissions s
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INNER JOIN enrollments e ON e.user_id = s.user_id AND e.workflow_state = 'active'
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WHERE s.assignment_id = assignments.id
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AND e.course_id = assignments.context_id
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AND (s.score IS NULL
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OR NOT grade_matches_current_submission
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OR s.workflow_state = 'submitted'
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OR s.workflow_state = 'pending_review'
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)
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AND s.submission_type IS NOT NULL
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), 0)
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SQL
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end
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def self.down
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remove_column :assignments, :needs_grading_count
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end
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end
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