mirror of
https://github.com/usememos/memos.git
synced 2024-09-20 14:35:54 +08:00
380 lines
8.5 KiB
Go
380 lines
8.5 KiB
Go
package store
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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"time"
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"github.com/usememos/memos/common/util"
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)
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// Visibility is the type of a visibility.
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type Visibility string
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const (
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// Public is the PUBLIC visibility.
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Public Visibility = "PUBLIC"
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// Protected is the PROTECTED visibility.
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Protected Visibility = "PROTECTED"
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// Private is the PRIVATE visibility.
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Private Visibility = "PRIVATE"
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)
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func (v Visibility) String() string {
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switch v {
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case Public:
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return "PUBLIC"
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case Protected:
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return "PROTECTED"
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case Private:
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return "PRIVATE"
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}
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return "PRIVATE"
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}
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type Memo struct {
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ID int32
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// Standard fields
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RowStatus RowStatus
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CreatorID int32
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CreatedTs int64
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UpdatedTs int64
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// Domain specific fields
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Content string
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Visibility Visibility
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// Composed fields
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Pinned bool
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ResourceIDList []int32
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RelationList []*MemoRelation
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}
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type FindMemo struct {
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ID *int32
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// Standard fields
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RowStatus *RowStatus
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CreatorID *int32
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CreatedTsAfter *int64
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CreatedTsBefore *int64
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// Domain specific fields
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Pinned *bool
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ContentSearch []string
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VisibilityList []Visibility
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// Pagination
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Limit *int
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Offset *int
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OrderByUpdatedTs bool
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}
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type UpdateMemo struct {
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ID int32
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CreatedTs *int64
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UpdatedTs *int64
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RowStatus *RowStatus
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Content *string
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Visibility *Visibility
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}
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type DeleteMemo struct {
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ID int32
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}
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func (s *Store) CreateMemo(ctx context.Context, create *Memo) (*Memo, error) {
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if create.CreatedTs == 0 {
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create.CreatedTs = time.Now().Unix()
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}
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stmt := `
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INSERT INTO memo (
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creator_id,
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created_ts,
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content,
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visibility
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)
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VALUES (?, ?, ?, ?)
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RETURNING id, created_ts, updated_ts, row_status
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`
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if err := s.db.QueryRowContext(
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ctx,
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stmt,
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create.CreatorID,
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create.CreatedTs,
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create.Content,
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create.Visibility,
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).Scan(
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&create.ID,
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&create.CreatedTs,
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&create.UpdatedTs,
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&create.RowStatus,
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); err != nil {
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return nil, err
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}
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memo := create
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return memo, nil
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}
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func (s *Store) ListMemos(ctx context.Context, find *FindMemo) ([]*Memo, error) {
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where, args := []string{"1 = 1"}, []any{}
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if v := find.ID; v != nil {
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where, args = append(where, "memo.id = ?"), append(args, *v)
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}
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if v := find.CreatorID; v != nil {
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where, args = append(where, "memo.creator_id = ?"), append(args, *v)
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}
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if v := find.RowStatus; v != nil {
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where, args = append(where, "memo.row_status = ?"), append(args, *v)
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}
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if v := find.CreatedTsBefore; v != nil {
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where, args = append(where, "memo.created_ts < ?"), append(args, *v)
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}
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if v := find.CreatedTsAfter; v != nil {
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where, args = append(where, "memo.created_ts > ?"), append(args, *v)
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}
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if v := find.Pinned; v != nil {
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where = append(where, "memo_organizer.pinned = 1")
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}
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if v := find.ContentSearch; len(v) != 0 {
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for _, s := range v {
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where, args = append(where, "memo.content LIKE ?"), append(args, "%"+s+"%")
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}
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}
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if v := find.VisibilityList; len(v) != 0 {
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list := []string{}
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for _, visibility := range v {
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list = append(list, fmt.Sprintf("$%d", len(args)+1))
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args = append(args, visibility)
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}
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where = append(where, fmt.Sprintf("memo.visibility in (%s)", strings.Join(list, ",")))
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}
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orders := []string{"pinned DESC"}
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if find.OrderByUpdatedTs {
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orders = append(orders, "updated_ts DESC")
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} else {
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orders = append(orders, "created_ts DESC")
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}
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orders = append(orders, "id DESC")
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query := `
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SELECT
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memo.id AS id,
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memo.creator_id AS creator_id,
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memo.created_ts AS created_ts,
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memo.updated_ts AS updated_ts,
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memo.row_status AS row_status,
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memo.content AS content,
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memo.visibility AS visibility,
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CASE WHEN memo_organizer.pinned = 1 THEN 1 ELSE 0 END AS pinned,
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GROUP_CONCAT(memo_resource.resource_id) AS resource_id_list,
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(
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SELECT
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GROUP_CONCAT(related_memo_id || ':' || type)
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FROM
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memo_relation
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WHERE
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memo_relation.memo_id = memo.id
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GROUP BY
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memo_relation.memo_id
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) AS relation_list
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FROM
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memo
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LEFT JOIN
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memo_organizer ON memo.id = memo_organizer.memo_id
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LEFT JOIN
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memo_resource ON memo.id = memo_resource.memo_id
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WHERE ` + strings.Join(where, " AND ") + `
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GROUP BY memo.id
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ORDER BY ` + strings.Join(orders, ", ") + `
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`
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if find.Limit != nil {
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query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
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if find.Offset != nil {
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query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
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}
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}
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rows, err := s.db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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list := make([]*Memo, 0)
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for rows.Next() {
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var memo Memo
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var memoResourceIDList sql.NullString
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var memoRelationList sql.NullString
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if err := rows.Scan(
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&memo.ID,
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&memo.CreatorID,
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&memo.CreatedTs,
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&memo.UpdatedTs,
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&memo.RowStatus,
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&memo.Content,
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&memo.Visibility,
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&memo.Pinned,
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&memoResourceIDList,
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&memoRelationList,
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); err != nil {
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return nil, err
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}
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if memoResourceIDList.Valid {
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idStringList := strings.Split(memoResourceIDList.String, ",")
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memo.ResourceIDList = make([]int32, 0, len(idStringList))
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for _, idString := range idStringList {
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id, err := util.ConvertStringToInt32(idString)
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if err != nil {
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return nil, err
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}
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memo.ResourceIDList = append(memo.ResourceIDList, id)
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}
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}
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if memoRelationList.Valid {
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memo.RelationList = make([]*MemoRelation, 0)
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relatedMemoTypeList := strings.Split(memoRelationList.String, ",")
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for _, relatedMemoType := range relatedMemoTypeList {
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relatedMemoTypeList := strings.Split(relatedMemoType, ":")
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if len(relatedMemoTypeList) != 2 {
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return nil, fmt.Errorf("invalid relation format")
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}
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relatedMemoID, err := util.ConvertStringToInt32(relatedMemoTypeList[0])
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if err != nil {
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return nil, err
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}
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memo.RelationList = append(memo.RelationList, &MemoRelation{
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MemoID: memo.ID,
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RelatedMemoID: relatedMemoID,
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Type: MemoRelationType(relatedMemoTypeList[1]),
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})
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}
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}
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list = append(list, &memo)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return list, nil
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}
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func (s *Store) GetMemo(ctx context.Context, find *FindMemo) (*Memo, error) {
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list, err := s.ListMemos(ctx, find)
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if err != nil {
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return nil, err
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}
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if len(list) == 0 {
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return nil, nil
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}
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memo := list[0]
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return memo, nil
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}
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func (s *Store) UpdateMemo(ctx context.Context, update *UpdateMemo) error {
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set, args := []string{}, []any{}
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if v := update.CreatedTs; v != nil {
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set, args = append(set, "created_ts = ?"), append(args, *v)
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}
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if v := update.UpdatedTs; v != nil {
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set, args = append(set, "updated_ts = ?"), append(args, *v)
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}
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if v := update.RowStatus; v != nil {
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set, args = append(set, "row_status = ?"), append(args, *v)
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}
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if v := update.Content; v != nil {
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set, args = append(set, "content = ?"), append(args, *v)
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}
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if v := update.Visibility; v != nil {
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set, args = append(set, "visibility = ?"), append(args, *v)
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}
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args = append(args, update.ID)
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stmt := `
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UPDATE memo
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SET ` + strings.Join(set, ", ") + `
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WHERE id = ?
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`
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if _, err := s.db.ExecContext(ctx, stmt, args...); err != nil {
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return err
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}
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return nil
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}
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func (s *Store) DeleteMemo(ctx context.Context, delete *DeleteMemo) error {
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where, args := []string{"id = ?"}, []any{delete.ID}
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stmt := `DELETE FROM memo WHERE ` + strings.Join(where, " AND ")
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result, err := s.db.ExecContext(ctx, stmt, args...)
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if err != nil {
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return err
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}
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if _, err := result.RowsAffected(); err != nil {
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return err
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}
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if err := s.Vacuum(ctx); err != nil {
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// Prevent linter warning.
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return err
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}
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return nil
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}
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func (s *Store) FindMemosVisibilityList(ctx context.Context, memoIDs []int32) ([]Visibility, error) {
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args := make([]any, 0, len(memoIDs))
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list := make([]string, 0, len(memoIDs))
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for _, memoID := range memoIDs {
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args = append(args, memoID)
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list = append(list, "?")
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}
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where := fmt.Sprintf("id in (%s)", strings.Join(list, ","))
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query := `SELECT DISTINCT(visibility) FROM memo WHERE ` + where
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rows, err := s.db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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visibilityList := make([]Visibility, 0)
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for rows.Next() {
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var visibility Visibility
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if err := rows.Scan(&visibility); err != nil {
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return nil, err
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}
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visibilityList = append(visibilityList, visibility)
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return visibilityList, nil
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}
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func vacuumMemo(ctx context.Context, tx *sql.Tx) error {
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stmt := `
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DELETE FROM
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memo
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WHERE
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creator_id NOT IN (
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SELECT
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id
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FROM
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user
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)`
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_, err := tx.ExecContext(ctx, stmt)
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if err != nil {
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return err
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}
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return nil
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}
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