Yared Yemane
b62d89574e
Return per-module lesson and practice aggregates under unit modules listing so clients can render module depth without additional queries. Co-authored-by: Cursor <cursoragent@cursor.com>
82 lines
2.0 KiB
SQL
82 lines
2.0 KiB
SQL
-- name: ExamPrepCreateUnitModule :one
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INSERT INTO exam_prep.unit_modules (unit_id, name, description, thumbnail, icon, sort_order)
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SELECT
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$1,
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$2,
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$3,
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$4,
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$5,
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coalesce((
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SELECT
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max(m.sort_order)
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FROM exam_prep.unit_modules m
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WHERE
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m.unit_id = $1), 0) + 1
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RETURNING
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*;
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-- name: ExamPrepGetUnitModuleByID :one
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SELECT *
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FROM exam_prep.unit_modules
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WHERE id = $1;
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-- name: ExamPrepListUnitModuleIDsByUnit :many
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SELECT
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m.id
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FROM exam_prep.unit_modules m
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WHERE
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m.unit_id = $1
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ORDER BY
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m.id;
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-- name: ExamPrepListUnitModulesByUnit :many
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WITH module_counts AS (
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SELECT
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m.id AS module_id,
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COUNT(DISTINCT l.id)::BIGINT AS lessons_count,
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COUNT(DISTINCT p.id)::BIGINT AS practices_count
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FROM exam_prep.unit_modules m
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LEFT JOIN exam_prep.unit_module_lessons l ON l.unit_module_id = m.id
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LEFT JOIN exam_prep.lesson_practices p ON p.unit_module_lesson_id = l.id
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GROUP BY m.id
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)
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SELECT
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COUNT(*) OVER () AS total_count,
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m.id,
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m.unit_id,
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m.name,
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m.description,
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m.thumbnail,
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m.icon,
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m.sort_order,
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COALESCE(mc.lessons_count, 0)::BIGINT AS lessons_count,
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COALESCE(mc.practices_count, 0)::BIGINT AS practices_count,
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m.created_at,
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m.updated_at
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FROM exam_prep.unit_modules m
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LEFT JOIN module_counts mc ON mc.module_id = m.id
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WHERE
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m.unit_id = $1
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ORDER BY
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m.sort_order ASC,
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m.id ASC
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LIMIT $2
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OFFSET $3;
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-- name: ExamPrepUpdateUnitModule :one
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UPDATE exam_prep.unit_modules
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SET
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name = coalesce(sqlc.narg('name')::varchar, name),
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description = coalesce(sqlc.narg('description')::text, description),
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thumbnail = coalesce(sqlc.narg('thumbnail')::text, thumbnail),
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icon = coalesce(sqlc.narg('icon')::text, icon),
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sort_order = coalesce(sqlc.narg('sort_order')::int, sort_order),
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updated_at = CURRENT_TIMESTAMP
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WHERE id = sqlc.arg('id')
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RETURNING
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*;
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-- name: ExamPrepDeleteUnitModule :exec
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DELETE FROM exam_prep.unit_modules
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WHERE id = $1;
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