memos/store/db/mysql/memo.go
2023-10-26 09:02:50 +08:00

288 lines
8.5 KiB
Go

package mysql
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/pkg/errors"
"github.com/usememos/memos/internal/util"
"github.com/usememos/memos/store"
)
func (d *DB) CreateMemo(ctx context.Context, create *store.Memo) (*store.Memo, error) {
fields := []string{"`creator_id`", "`content`", "`visibility`"}
placeholder := []string{"?", "?", "?"}
args := []any{create.CreatorID, create.Content, create.Visibility}
if create.ID != 0 {
fields = append(fields, "`id`")
placeholder = append(placeholder, "?")
args = append(args, create.ID)
}
if create.CreatedTs != 0 {
fields = append(fields, "`created_ts`")
placeholder = append(placeholder, "FROM_UNIXTIME(?)")
args = append(args, create.CreatedTs)
}
if create.UpdatedTs != 0 {
fields = append(fields, "`updated_ts`")
placeholder = append(placeholder, "FROM_UNIXTIME(?)")
args = append(args, create.UpdatedTs)
}
if create.RowStatus != "" {
fields = append(fields, "`row_status`")
placeholder = append(placeholder, "?")
args = append(args, create.RowStatus)
}
stmt := "INSERT INTO memo (" + strings.Join(fields, ", ") + ") VALUES (" + strings.Join(placeholder, ", ") + ")"
result, err := d.db.ExecContext(ctx, stmt, args...)
if err != nil {
return nil, err
}
rawID, err := result.LastInsertId()
if err != nil {
return nil, err
}
id := int32(rawID)
memo, err := d.GetMemo(ctx, &store.FindMemo{ID: &id})
if err != nil {
return nil, err
}
if memo == nil {
return nil, errors.Errorf("failed to create memo")
}
return memo, nil
}
func (d *DB) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.Memo, error) {
where, args := []string{"1 = 1"}, []any{}
if v := find.ID; v != nil {
where, args = append(where, "`memo`.`id` = ?"), append(args, *v)
}
if v := find.CreatorID; v != nil {
where, args = append(where, "`memo`.`creator_id` = ?"), append(args, *v)
}
if v := find.RowStatus; v != nil {
where, args = append(where, "`memo`.`row_status` = ?"), append(args, *v)
}
if v := find.CreatedTsBefore; v != nil {
where, args = append(where, "UNIX_TIMESTAMP(`memo`.`created_ts`) < ?"), append(args, *v)
}
if v := find.CreatedTsAfter; v != nil {
where, args = append(where, "UNIX_TIMESTAMP(`memo`.`created_ts`) > ?"), append(args, *v)
}
if v := find.Pinned; v != nil {
where = append(where, "`memo_organizer`.`pinned` = 1")
}
if v := find.ContentSearch; len(v) != 0 {
for _, s := range v {
where, args = append(where, "`memo`.`content` LIKE ?"), append(args, "%"+s+"%")
}
}
if v := find.VisibilityList; len(v) != 0 {
list := []string{}
for _, visibility := range v {
list = append(list, "?")
args = append(args, visibility)
}
where = append(where, fmt.Sprintf("`memo`.`visibility` in (%s)", strings.Join(list, ",")))
}
orders := []string{"`pinned` DESC"}
if find.OrderByUpdatedTs {
orders = append(orders, "`updated_ts` DESC")
} else {
orders = append(orders, "`created_ts` DESC")
}
orders = append(orders, "`id` DESC")
query := "SELECT `memo`.`id` AS `id`, `memo`.`creator_id` AS `creator_id`, UNIX_TIMESTAMP(`memo`.`created_ts`) AS `created_ts`, UNIX_TIMESTAMP(`memo`.`updated_ts`) AS `updated_ts`, `memo`.`row_status` AS `row_status`, `memo`.`content` AS `content`, `memo`.`visibility` AS `visibility`, MAX(CASE WHEN `memo_organizer`.`pinned` = 1 THEN 1 ELSE 0 END) AS `pinned`, GROUP_CONCAT(`resource`.`id`) AS `resource_id_list`, (SELECT GROUP_CONCAT(`memo_id`,':',`related_memo_id`,':',`type`) FROM `memo_relation` WHERE `memo_relation`.`memo_id` = `memo`.`id` OR `memo_relation`.`related_memo_id` = `memo`.`id` ) AS `relation_list` FROM `memo` LEFT JOIN `memo_organizer` ON `memo`.`id` = `memo_organizer`.`memo_id` LEFT JOIN `resource` ON `memo`.`id` = `resource`.`memo_id` WHERE " + strings.Join(where, " AND ") + " GROUP BY `memo`.`id` ORDER BY " + strings.Join(orders, ", ")
if find.Limit != nil {
query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
if find.Offset != nil {
query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
}
}
rows, err := d.db.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
defer rows.Close()
list := make([]*store.Memo, 0)
for rows.Next() {
var memo store.Memo
var memoResourceIDList sql.NullString
var memoRelationList sql.NullString
if err := rows.Scan(
&memo.ID,
&memo.CreatorID,
&memo.CreatedTs,
&memo.UpdatedTs,
&memo.RowStatus,
&memo.Content,
&memo.Visibility,
&memo.Pinned,
&memoResourceIDList,
&memoRelationList,
); err != nil {
return nil, err
}
if memoResourceIDList.Valid {
idStringList := strings.Split(memoResourceIDList.String, ",")
memo.ResourceIDList = make([]int32, 0, len(idStringList))
for _, idString := range idStringList {
id, err := util.ConvertStringToInt32(idString)
if err != nil {
return nil, err
}
memo.ResourceIDList = append(memo.ResourceIDList, id)
}
}
if memoRelationList.Valid {
memo.RelationList = make([]*store.MemoRelation, 0)
relatedMemoTypeList := strings.Split(memoRelationList.String, ",")
for _, relatedMemoType := range relatedMemoTypeList {
relatedMemoTypeList := strings.Split(relatedMemoType, ":")
if len(relatedMemoTypeList) != 3 {
return nil, errors.Errorf("invalid relation format")
}
memoID, err := util.ConvertStringToInt32(relatedMemoTypeList[0])
if err != nil {
return nil, err
}
relatedMemoID, err := util.ConvertStringToInt32(relatedMemoTypeList[1])
if err != nil {
return nil, err
}
relationType := store.MemoRelationType(relatedMemoTypeList[2])
memo.RelationList = append(memo.RelationList, &store.MemoRelation{
MemoID: memoID,
RelatedMemoID: relatedMemoID,
Type: relationType,
})
// Set the first parent ID if relation type is comment.
if memo.ParentID == nil && memoID == memo.ID && relationType == store.MemoRelationComment {
memo.ParentID = &relatedMemoID
}
}
}
list = append(list, &memo)
}
if err := rows.Err(); err != nil {
return nil, err
}
return list, nil
}
func (d *DB) GetMemo(ctx context.Context, find *store.FindMemo) (*store.Memo, error) {
list, err := d.ListMemos(ctx, find)
if err != nil {
return nil, err
}
if len(list) == 0 {
return nil, nil
}
memo := list[0]
return memo, nil
}
func (d *DB) UpdateMemo(ctx context.Context, update *store.UpdateMemo) error {
set, args := []string{}, []any{}
if v := update.CreatedTs; v != nil {
set, args = append(set, "`created_ts` = FROM_UNIXTIME(?)"), append(args, *v)
}
if v := update.UpdatedTs; v != nil {
set, args = append(set, "`updated_ts` = FROM_UNIXTIME(?)"), append(args, *v)
}
if v := update.RowStatus; v != nil {
set, args = append(set, "`row_status` = ?"), append(args, *v)
}
if v := update.Content; v != nil {
set, args = append(set, "`content` = ?"), append(args, *v)
}
if v := update.Visibility; v != nil {
set, args = append(set, "`visibility` = ?"), append(args, *v)
}
args = append(args, update.ID)
stmt := "UPDATE `memo` SET " + strings.Join(set, ", ") + " WHERE `id` = ?"
if _, err := d.db.ExecContext(ctx, stmt, args...); err != nil {
return err
}
return nil
}
func (d *DB) DeleteMemo(ctx context.Context, delete *store.DeleteMemo) error {
where, args := []string{"`id` = ?"}, []any{delete.ID}
stmt := "DELETE FROM `memo` WHERE " + strings.Join(where, " AND ")
result, err := d.db.ExecContext(ctx, stmt, args...)
if err != nil {
return err
}
if _, err := result.RowsAffected(); err != nil {
return err
}
if err := d.Vacuum(ctx); err != nil {
// Prevent linter warning.
return err
}
return nil
}
func (d *DB) FindMemosVisibilityList(ctx context.Context, memoIDs []int32) ([]store.Visibility, error) {
args := make([]any, 0, len(memoIDs))
list := make([]string, 0, len(memoIDs))
for _, memoID := range memoIDs {
args = append(args, memoID)
list = append(list, "?")
}
where := fmt.Sprintf("`id` in (%s)", strings.Join(list, ","))
query := "SELECT DISTINCT(`visibility`) FROM `memo` WHERE " + where
rows, err := d.db.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
defer rows.Close()
visibilityList := make([]store.Visibility, 0)
for rows.Next() {
var visibility store.Visibility
if err := rows.Scan(&visibility); err != nil {
return nil, err
}
visibilityList = append(visibilityList, visibility)
}
if err := rows.Err(); err != nil {
return nil, err
}
return visibilityList, nil
}
func vacuumMemo(ctx context.Context, tx *sql.Tx) error {
stmt := "DELETE FROM `memo` WHERE `creator_id` NOT IN (SELECT `id` FROM `user`)"
_, err := tx.ExecContext(ctx, stmt)
if err != nil {
return err
}
return nil
}