-- name: CreateAssignment :one
INSERT INTO assignments (
        date, amount, category_id
) VALUES (
        $1, $2, $3
)
RETURNING *;

-- name: DeleteAllAssignments :execrows
DELETE FROM assignments
USING categories
INNER JOIN category_groups ON categories.category_group_id = category_groups.id
WHERE categories.id = assignments.category_id AND category_groups.budget_id = @budget_id;

-- name: GetAssignmentsByMonthAndCategory :many
SELECT *
FROM assignments_by_month
WHERE assignments_by_month.budget_id = @budget_id;

-- name: GetAllAssignments :many
SELECT assignments.date, categories.name as category, category_groups.name as group, assignments.amount
FROM assignments
INNER JOIN categories ON categories.id = assignments.category_id
INNER JOIN category_groups ON categories.category_group_id = category_groups.id
WHERE category_groups.budget_id = @budget_id;