Emmanuel BENOîT
ad4071b4e8
If there is a display name, it will be used in all views (task lists, task details, comments). Made a view for task lists, because it was cleaner and because they're all more or less the same anyway.
111 lines
2.8 KiB
PL/PgSQL
111 lines
2.8 KiB
PL/PgSQL
-- Create a new task
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CREATE OR REPLACE FUNCTION add_task( t_item INT , t_title TEXT , t_description TEXT , t_priority INT , t_user INT )
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RETURNS INT
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STRICT VOLATILE
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SECURITY INVOKER
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AS $add_task$
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BEGIN
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INSERT INTO tasks ( item_id , task_title , task_description , task_priority , user_id )
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VALUES ( t_item , t_title , t_description , t_priority , t_user );
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RETURN 0;
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EXCEPTION
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WHEN unique_violation THEN
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RETURN 1;
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WHEN foreign_key_violation THEN
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RETURN 2;
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END;
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$add_task$ LANGUAGE plpgsql;
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-- Mark a task as finished
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CREATE OR REPLACE FUNCTION finish_task( t_id INT , u_id INT , n_text TEXT )
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RETURNS INT
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STRICT VOLATILE
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SECURITY INVOKER
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AS $finish_task$
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BEGIN
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BEGIN
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INSERT INTO completed_tasks ( task_id , user_id )
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VALUES ( t_id , u_id );
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EXCEPTION
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WHEN unique_violation THEN
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RETURN 1;
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END;
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INSERT INTO notes ( task_id , user_id , note_text )
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VALUES ( t_id , u_id , n_text );
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RETURN 0;
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END;
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$finish_task$ LANGUAGE plpgsql;
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-- Restart a task
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CREATE OR REPLACE FUNCTION restart_task( t_id INT , u_id INT , n_text TEXT )
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RETURNS INT
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STRICT VOLATILE
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SECURITY INVOKER
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AS $restart_task$
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BEGIN
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DELETE FROM completed_tasks WHERE task_id = t_id;
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IF NOT FOUND THEN
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RETURN 1;
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END IF;
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INSERT INTO notes ( task_id , user_id , note_text )
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VALUES ( t_id , u_id , n_text );
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RETURN 0;
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END;
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$restart_task$ LANGUAGE plpgsql;
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-- Update a task
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CREATE OR REPLACE FUNCTION update_task( t_id INT , p_id INT , t_title TEXT , t_description TEXT , t_priority INT )
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RETURNS INT
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STRICT VOLATILE
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SECURITY INVOKER
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AS $update_task$
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BEGIN
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UPDATE tasks SET item_id = p_id , task_title = t_title ,
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task_description = t_description ,
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task_priority = t_priority
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WHERE task_id = t_id;
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RETURN 0;
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EXCEPTION
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WHEN unique_violation THEN
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RETURN 1;
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WHEN foreign_key_violation THEN
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RETURN 2;
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END;
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$update_task$ LANGUAGE plpgsql;
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--
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-- Task list view
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--
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-- This view contains all fields used to display task lists.
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--
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DROP VIEW IF EXISTS tasks_list;
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CREATE VIEW tasks_list
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AS SELECT t.task_id AS id, t.item_id AS item, t.task_title AS title,
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t.task_description AS description, t.task_added AS added_at,
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u1.user_view_name AS added_by,
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ct.completed_task_time AS completed_at,
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u2.user_view_name AS completed_by ,
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t.task_priority AS priority ,
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bd.bad_deps AS missing_dependencies
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FROM tasks t
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INNER JOIN users_view u1 ON u1.user_id = t.user_id
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LEFT OUTER JOIN completed_tasks ct ON ct.task_id = t.task_id
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LEFT OUTER JOIN users_view u2 ON u2.user_id = ct.user_id
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LEFT OUTER JOIN (
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SELECT td.task_id , COUNT(*) AS bad_deps
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FROM task_dependencies td
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LEFT OUTER JOIN completed_tasks dct
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ON dct.task_id = td.task_id_depends
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WHERE dct.task_id IS NULL
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GROUP BY td.task_id
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) AS bd ON bd.task_id = t.task_id;
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GRANT SELECT ON tasks_list TO :webapp_user;
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