18 lines
889 B
SQL
18 lines
889 B
SQL
-- Fix Draft Constraints Migration
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-- Allows multiple drafts per phase while preventing multiple submitted drafts
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-- Drop the overly restrictive constraint
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ALTER TABLE public.experiment_phase_drafts
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DROP CONSTRAINT IF EXISTS unique_user_phase_repetition_draft;
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-- Add a proper constraint that only prevents multiple submitted drafts
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-- Users can have multiple drafts in 'draft' or 'withdrawn' status, but only one 'submitted' per phase
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ALTER TABLE public.experiment_phase_drafts
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ADD CONSTRAINT unique_submitted_draft_per_user_phase
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EXCLUDE (user_id WITH =, repetition_id WITH =, phase_name WITH =)
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WHERE (status = 'submitted');
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-- Add comment explaining the constraint
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COMMENT ON CONSTRAINT unique_submitted_draft_per_user_phase ON public.experiment_phase_drafts
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IS 'Ensures only one submitted draft per user per phase per repetition, but allows multiple draft/withdrawn entries';
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