Yimaru-BackEnd/gen/db/exam_prep_catalog_courses.sql.go

// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.30.0
// source: exam_prep_catalog_courses.sql

package dbgen

import (
	"context"

	"github.com/jackc/pgx/v5/pgtype"
)

const ExamPrepCreateCatalogCourse = `-- name: ExamPrepCreateCatalogCourse :one
INSERT INTO exam_prep.catalog_courses (name, description, thumbnail, sort_order)
SELECT
    $1,
    $2,
    $3,
    coalesce((
        SELECT
            max(c.sort_order)
        FROM exam_prep.catalog_courses AS c), 0) + 1
RETURNING
    id, name, description, thumbnail, sort_order, created_at, updated_at
`

type ExamPrepCreateCatalogCourseParams struct {
	Name        string      `json:"name"`
	Description pgtype.Text `json:"description"`
	Thumbnail   pgtype.Text `json:"thumbnail"`
}

func (q *Queries) ExamPrepCreateCatalogCourse(ctx context.Context, arg ExamPrepCreateCatalogCourseParams) (ExamPrepCatalogCourse, error) {
	row := q.db.QueryRow(ctx, ExamPrepCreateCatalogCourse, arg.Name, arg.Description, arg.Thumbnail)
	var i ExamPrepCatalogCourse
	err := row.Scan(
		&i.ID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.SortOrder,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}

const ExamPrepDeleteCatalogCourse = `-- name: ExamPrepDeleteCatalogCourse :exec
DELETE FROM exam_prep.catalog_courses
WHERE id = $1
`

func (q *Queries) ExamPrepDeleteCatalogCourse(ctx context.Context, id int64) error {
	_, err := q.db.Exec(ctx, ExamPrepDeleteCatalogCourse, id)
	return err
}

const ExamPrepGetCatalogCourseByID = `-- name: ExamPrepGetCatalogCourseByID :one
SELECT id, name, description, thumbnail, sort_order, created_at, updated_at
FROM exam_prep.catalog_courses
WHERE id = $1
`

func (q *Queries) ExamPrepGetCatalogCourseByID(ctx context.Context, id int64) (ExamPrepCatalogCourse, error) {
	row := q.db.QueryRow(ctx, ExamPrepGetCatalogCourseByID, id)
	var i ExamPrepCatalogCourse
	err := row.Scan(
		&i.ID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.SortOrder,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}

const ExamPrepListAllCatalogCourseIDs = `-- name: ExamPrepListAllCatalogCourseIDs :many
SELECT
    id
FROM exam_prep.catalog_courses
ORDER BY id
`

func (q *Queries) ExamPrepListAllCatalogCourseIDs(ctx context.Context) ([]int64, error) {
	rows, err := q.db.Query(ctx, ExamPrepListAllCatalogCourseIDs)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []int64
	for rows.Next() {
		var id int64
		if err := rows.Scan(&id); err != nil {
			return nil, err
		}
		items = append(items, id)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const ExamPrepListCatalogCourses = `-- name: ExamPrepListCatalogCourses :many
WITH catalog_course_counts AS (
    SELECT
        u.catalog_course_id,
        COUNT(DISTINCT u.id)::BIGINT AS units_count,
        COUNT(DISTINCT m.id)::BIGINT AS modules_count,
        COUNT(DISTINCT l.id)::BIGINT AS lessons_count
    FROM exam_prep.units u
    LEFT JOIN exam_prep.unit_modules m ON m.unit_id = u.id
    LEFT JOIN exam_prep.unit_module_lessons l ON l.unit_module_id = m.id
    GROUP BY u.catalog_course_id
)
SELECT
    COUNT(*) OVER () AS total_count,
    c.id,
    c.name,
    c.description,
    c.thumbnail,
    c.sort_order,
    COALESCE(cc.units_count, 0)::BIGINT AS units_count,
    COALESCE(cc.modules_count, 0)::BIGINT AS modules_count,
    COALESCE(cc.lessons_count, 0)::BIGINT AS lessons_count,
    c.created_at,
    c.updated_at
FROM exam_prep.catalog_courses c
LEFT JOIN catalog_course_counts cc ON cc.catalog_course_id = c.id
ORDER BY c.sort_order ASC, c.id ASC
LIMIT $1 OFFSET $2
`

type ExamPrepListCatalogCoursesParams struct {
	Limit  int32 `json:"limit"`
	Offset int32 `json:"offset"`
}

type ExamPrepListCatalogCoursesRow struct {
	TotalCount   int64              `json:"total_count"`
	ID           int64              `json:"id"`
	Name         string             `json:"name"`
	Description  pgtype.Text        `json:"description"`
	Thumbnail    pgtype.Text        `json:"thumbnail"`
	SortOrder    int32              `json:"sort_order"`
	UnitsCount   int64              `json:"units_count"`
	ModulesCount int64              `json:"modules_count"`
	LessonsCount int64              `json:"lessons_count"`
	CreatedAt    pgtype.Timestamptz `json:"created_at"`
	UpdatedAt    pgtype.Timestamptz `json:"updated_at"`
}

func (q *Queries) ExamPrepListCatalogCourses(ctx context.Context, arg ExamPrepListCatalogCoursesParams) ([]ExamPrepListCatalogCoursesRow, error) {
	rows, err := q.db.Query(ctx, ExamPrepListCatalogCourses, arg.Limit, arg.Offset)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []ExamPrepListCatalogCoursesRow
	for rows.Next() {
		var i ExamPrepListCatalogCoursesRow
		if err := rows.Scan(
			&i.TotalCount,
			&i.ID,
			&i.Name,
			&i.Description,
			&i.Thumbnail,
			&i.SortOrder,
			&i.UnitsCount,
			&i.ModulesCount,
			&i.LessonsCount,
			&i.CreatedAt,
			&i.UpdatedAt,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const ExamPrepUpdateCatalogCourse = `-- name: ExamPrepUpdateCatalogCourse :one
UPDATE exam_prep.catalog_courses
SET
    name = coalesce($1::varchar, name),
    description = coalesce($2::text, description),
    thumbnail = coalesce($3::text, thumbnail),
    sort_order = coalesce($4::int, sort_order),
    updated_at = CURRENT_TIMESTAMP
WHERE id = $5
RETURNING
    id, name, description, thumbnail, sort_order, created_at, updated_at
`

type ExamPrepUpdateCatalogCourseParams struct {
	Name        pgtype.Text `json:"name"`
	Description pgtype.Text `json:"description"`
	Thumbnail   pgtype.Text `json:"thumbnail"`
	SortOrder   pgtype.Int4 `json:"sort_order"`
	ID          int64       `json:"id"`
}

func (q *Queries) ExamPrepUpdateCatalogCourse(ctx context.Context, arg ExamPrepUpdateCatalogCourseParams) (ExamPrepCatalogCourse, error) {
	row := q.db.QueryRow(ctx, ExamPrepUpdateCatalogCourse,
		arg.Name,
		arg.Description,
		arg.Thumbnail,
		arg.SortOrder,
		arg.ID,
	)
	var i ExamPrepCatalogCourse
	err := row.Scan(
		&i.ID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.SortOrder,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}