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Create migration for community posts likes and comments counters

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cgen-ec7c0a488e3142738797a2bed6725053
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Builder.io 2025-11-13 06:32:43 +00:00
parent 5dcda29eb5
commit f35c5c892a
1 changed files with 54 additions and 0 deletions
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supabase/migrations/20250120_add_community_posts_counters.sql Normal file
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-- Add likes_count and comments_count columns to community_posts if they don't exist
ALTER TABLE public.community_posts
ADD COLUMN IF NOT EXISTS likes_count INTEGER DEFAULT 0 NOT NULL,
ADD COLUMN IF NOT EXISTS comments_count INTEGER DEFAULT 0 NOT NULL;
-- Create function to update likes_count
CREATE OR REPLACE FUNCTION update_post_likes_count()
RETURNS TRIGGER AS $$
BEGIN
IF TG_OP = 'INSERT' THEN
UPDATE public.community_posts
SET likes_count = (SELECT COUNT(*) FROM public.community_post_likes WHERE post_id = NEW.post_id)
WHERE id = NEW.post_id;
ELSIF TG_OP = 'DELETE' THEN
UPDATE public.community_posts
SET likes_count = (SELECT COUNT(*) FROM public.community_post_likes WHERE post_id = OLD.post_id)
WHERE id = OLD.post_id;
END IF;
RETURN NULL;
END;
$$ LANGUAGE plpgsql;
-- Create function to update comments_count
CREATE OR REPLACE FUNCTION update_post_comments_count()
RETURNS TRIGGER AS $$
BEGIN
IF TG_OP = 'INSERT' THEN
UPDATE public.community_posts
SET comments_count = (SELECT COUNT(*) FROM public.community_comments WHERE post_id = NEW.post_id)
WHERE id = NEW.post_id;
ELSIF TG_OP = 'DELETE' THEN
UPDATE public.community_posts
SET comments_count = (SELECT COUNT(*) FROM public.community_comments WHERE post_id = OLD.post_id)
WHERE id = OLD.post_id;
END IF;
RETURN NULL;
END;
$$ LANGUAGE plpgsql;
-- Drop existing triggers if they exist
DROP TRIGGER IF EXISTS trigger_update_post_likes_count ON public.community_post_likes;
DROP TRIGGER IF EXISTS trigger_update_post_comments_count ON public.community_comments;
-- Create triggers for likes
CREATE TRIGGER trigger_update_post_likes_count
AFTER INSERT OR DELETE ON public.community_post_likes
FOR EACH ROW
EXECUTE FUNCTION update_post_likes_count();
-- Create triggers for comments
CREATE TRIGGER trigger_update_post_comments_count
AFTER INSERT OR DELETE ON public.community_comments
FOR EACH ROW
EXECUTE FUNCTION update_post_comments_count();