62 lines
1.6 KiB
PL/PgSQL
62 lines
1.6 KiB
PL/PgSQL
-- Description: This file creates the procedures and functions for adding users, posts, and comments.
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-- Functions are commonly used for SELECT queries, while procedures are used for INSERT, UPDATE, and DELETE queries.
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-- None of these seem to play very nice with sqlx for now, but they will surely be useful in the future.
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-- Procedure for adding a user
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CREATE OR REPLACE PROCEDURE add_user(
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IN username_param TEXT,
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IN password_param TEXT
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)
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LANGUAGE plpgsql
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AS $$
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BEGIN
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INSERT INTO users (username, password)
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VALUES (username_param, password_param);
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END;
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$$;
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-- Procedure for adding a post
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CREATE OR REPLACE PROCEDURE add_post(
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IN user_id_param BIGINT,
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IN content_param TEXT
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)
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LANGUAGE plpgsql
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AS $$
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BEGIN
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INSERT INTO posts (user_id, content)
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VALUES (user_id_param, content_param);
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END;
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$$;
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-- Procedure for adding a comment
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CREATE OR REPLACE PROCEDURE add_comment(
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IN parent_post_id_param BIGINT,
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-- IN parent_comment_id_param BIGINT,
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IN author_user_id_param BIGINT,
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IN content_param TEXT
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)
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LANGUAGE plpgsql
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AS $$
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BEGIN
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INSERT INTO comments (parent_post_id, author_user_id, content)
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VALUES (parent_post_id_param, author_user_id_param, content_param);
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END;
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$$;
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-- Function for getting comments
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CREATE OR REPLACE FUNCTION get_comments(
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IN parent_post_id_param BIGINT,
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IN limit_param BIGINT,
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IN offset_param BIGINT
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)
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RETURNS SETOF comments AS $$
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BEGIN
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RETURN QUERY
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SELECT *
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FROM comments
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WHERE parent_post_id = parent_post_id_param
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ORDER BY created_at DESC
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LIMIT limit_param
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OFFSET offset_param;
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END;
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$$ LANGUAGE plpgsql;
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