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- package store
- import (
- "context"
- "database/sql"
- "fmt"
- "strings"
- "github.com/usememos/memos/api"
- "github.com/usememos/memos/common"
- )
- // memoRaw is the store model for an Memo.
- // Fields have exactly the same meanings as Memo.
- type memoRaw struct {
- ID int
- // Standard fields
- RowStatus api.RowStatus
- CreatorID int
- CreatedTs int64
- UpdatedTs int64
- // Domain specific fields
- Content string
- Visibility api.Visibility
- Pinned bool
- }
- // toMemo creates an instance of Memo based on the memoRaw.
- // This is intended to be called when we need to compose an Memo relationship.
- func (raw *memoRaw) toMemo() *api.Memo {
- return &api.Memo{
- ID: raw.ID,
- // Standard fields
- RowStatus: raw.RowStatus,
- CreatorID: raw.CreatorID,
- CreatedTs: raw.CreatedTs,
- UpdatedTs: raw.UpdatedTs,
- // Domain specific fields
- Content: raw.Content,
- Visibility: raw.Visibility,
- Pinned: raw.Pinned,
- }
- }
- func (s *Store) ComposeMemo(ctx context.Context, memo *api.Memo) (*api.Memo, error) {
- if err := s.ComposeMemoCreator(ctx, memo); err != nil {
- return nil, err
- }
- if err := s.ComposeMemoResourceList(ctx, memo); err != nil {
- return nil, err
- }
- return memo, nil
- }
- func (s *Store) CreateMemo(ctx context.Context, create *api.MemoCreate) (*api.Memo, error) {
- tx, err := s.db.BeginTx(ctx, nil)
- if err != nil {
- return nil, FormatError(err)
- }
- defer tx.Rollback()
- memoRaw, err := createMemoRaw(ctx, tx, create)
- if err != nil {
- return nil, err
- }
- if err := tx.Commit(); err != nil {
- return nil, FormatError(err)
- }
- s.memoCache.Store(memoRaw.ID, memoRaw)
- memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
- if err != nil {
- return nil, err
- }
- return memo, nil
- }
- func (s *Store) PatchMemo(ctx context.Context, patch *api.MemoPatch) (*api.Memo, error) {
- tx, err := s.db.BeginTx(ctx, nil)
- if err != nil {
- return nil, FormatError(err)
- }
- defer tx.Rollback()
- memoRaw, err := patchMemoRaw(ctx, tx, patch)
- if err != nil {
- return nil, err
- }
- if err := tx.Commit(); err != nil {
- return nil, FormatError(err)
- }
- s.memoCache.Store(memoRaw.ID, memoRaw)
- memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
- if err != nil {
- return nil, err
- }
- return memo, nil
- }
- func (s *Store) FindMemoList(ctx context.Context, find *api.MemoFind) ([]*api.Memo, error) {
- tx, err := s.db.BeginTx(ctx, nil)
- if err != nil {
- return nil, FormatError(err)
- }
- defer tx.Rollback()
- memoRawList, err := findMemoRawList(ctx, tx, find)
- if err != nil {
- return nil, err
- }
- list := []*api.Memo{}
- for _, raw := range memoRawList {
- memo, err := s.ComposeMemo(ctx, raw.toMemo())
- if err != nil {
- return nil, err
- }
- list = append(list, memo)
- }
- return list, nil
- }
- func (s *Store) FindMemo(ctx context.Context, find *api.MemoFind) (*api.Memo, error) {
- if find.ID != nil {
- if memo, ok := s.memoCache.Load(*find.ID); ok {
- memoRaw := memo.(*memoRaw)
- memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
- if err != nil {
- return nil, err
- }
- return memo, nil
- }
- }
- tx, err := s.db.BeginTx(ctx, nil)
- if err != nil {
- return nil, FormatError(err)
- }
- defer tx.Rollback()
- list, err := findMemoRawList(ctx, tx, find)
- if err != nil {
- return nil, err
- }
- if len(list) == 0 {
- return nil, &common.Error{Code: common.NotFound, Err: fmt.Errorf("not found")}
- }
- memoRaw := list[0]
- s.memoCache.Store(memoRaw.ID, memoRaw)
- memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
- if err != nil {
- return nil, err
- }
- return memo, nil
- }
- func (s *Store) DeleteMemo(ctx context.Context, delete *api.MemoDelete) error {
- tx, err := s.db.BeginTx(ctx, nil)
- if err != nil {
- return FormatError(err)
- }
- defer tx.Rollback()
- if err := deleteMemo(ctx, tx, delete); err != nil {
- return FormatError(err)
- }
- if err := vacuum(ctx, tx); err != nil {
- return err
- }
- if err := tx.Commit(); err != nil {
- return FormatError(err)
- }
- s.memoCache.Delete(delete.ID)
- return nil
- }
- func createMemoRaw(ctx context.Context, tx *sql.Tx, create *api.MemoCreate) (*memoRaw, error) {
- set := []string{"creator_id", "content", "visibility"}
- args := []any{create.CreatorID, create.Content, create.Visibility}
- placeholder := []string{"?", "?", "?"}
- if v := create.CreatedTs; v != nil {
- set, args, placeholder = append(set, "created_ts"), append(args, *v), append(placeholder, "?")
- }
- query := `
- INSERT INTO memo (
- ` + strings.Join(set, ", ") + `
- )
- VALUES (` + strings.Join(placeholder, ",") + `)
- RETURNING id, creator_id, created_ts, updated_ts, row_status, content, visibility
- `
- var memoRaw memoRaw
- if err := tx.QueryRowContext(ctx, query, args...).Scan(
- &memoRaw.ID,
- &memoRaw.CreatorID,
- &memoRaw.CreatedTs,
- &memoRaw.UpdatedTs,
- &memoRaw.RowStatus,
- &memoRaw.Content,
- &memoRaw.Visibility,
- ); err != nil {
- return nil, FormatError(err)
- }
- return &memoRaw, nil
- }
- func patchMemoRaw(ctx context.Context, tx *sql.Tx, patch *api.MemoPatch) (*memoRaw, error) {
- set, args := []string{}, []any{}
- if v := patch.CreatedTs; v != nil {
- set, args = append(set, "created_ts = ?"), append(args, *v)
- }
- if v := patch.UpdatedTs; v != nil {
- set, args = append(set, "updated_ts = ?"), append(args, *v)
- }
- if v := patch.RowStatus; v != nil {
- set, args = append(set, "row_status = ?"), append(args, *v)
- }
- if v := patch.Content; v != nil {
- set, args = append(set, "content = ?"), append(args, *v)
- }
- if v := patch.Visibility; v != nil {
- set, args = append(set, "visibility = ?"), append(args, *v)
- }
- args = append(args, patch.ID)
- query := `
- UPDATE memo
- SET ` + strings.Join(set, ", ") + `
- WHERE id = ?
- RETURNING id, creator_id, created_ts, updated_ts, row_status, content, visibility
- `
- var memoRaw memoRaw
- if err := tx.QueryRowContext(ctx, query, args...).Scan(
- &memoRaw.ID,
- &memoRaw.CreatorID,
- &memoRaw.CreatedTs,
- &memoRaw.UpdatedTs,
- &memoRaw.RowStatus,
- &memoRaw.Content,
- &memoRaw.Visibility,
- ); err != nil {
- return nil, FormatError(err)
- }
- return &memoRaw, nil
- }
- func findMemoRawList(ctx context.Context, tx *sql.Tx, find *api.MemoFind) ([]*memoRaw, 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.Pinned; v != nil {
- where = append(where, "memo_organizer.pinned = 1")
- }
- if v := find.ContentSearch; v != nil {
- where, args = append(where, "memo.content LIKE ?"), append(args, "%"+*v+"%")
- }
- if v := find.VisibilityList; len(v) != 0 {
- list := []string{}
- for _, visibility := range v {
- list = append(list, fmt.Sprintf("$%d", len(args)+1))
- args = append(args, visibility)
- }
- where = append(where, fmt.Sprintf("memo.visibility in (%s)", strings.Join(list, ",")))
- }
- query := `
- SELECT
- memo.id,
- memo.creator_id,
- memo.created_ts,
- memo.updated_ts,
- memo.row_status,
- memo.content,
- memo.visibility,
- IFNULL(memo_organizer.pinned, 0) AS pinned
- FROM memo
- LEFT JOIN memo_organizer ON memo_organizer.memo_id = memo.id AND memo_organizer.user_id = memo.creator_id
- WHERE ` + strings.Join(where, " AND ") + `
- ORDER BY pinned DESC, memo.created_ts DESC
- `
- 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 := tx.QueryContext(ctx, query, args...)
- if err != nil {
- return nil, FormatError(err)
- }
- defer rows.Close()
- memoRawList := make([]*memoRaw, 0)
- for rows.Next() {
- var memoRaw memoRaw
- var pinned sql.NullBool
- if err := rows.Scan(
- &memoRaw.ID,
- &memoRaw.CreatorID,
- &memoRaw.CreatedTs,
- &memoRaw.UpdatedTs,
- &memoRaw.RowStatus,
- &memoRaw.Content,
- &memoRaw.Visibility,
- &pinned,
- ); err != nil {
- return nil, FormatError(err)
- }
- if pinned.Valid {
- memoRaw.Pinned = pinned.Bool
- }
- memoRawList = append(memoRawList, &memoRaw)
- }
- if err := rows.Err(); err != nil {
- return nil, FormatError(err)
- }
- return memoRawList, nil
- }
- func deleteMemo(ctx context.Context, tx *sql.Tx, delete *api.MemoDelete) error {
- where, args := []string{"id = ?"}, []any{delete.ID}
- stmt := `DELETE FROM memo WHERE ` + strings.Join(where, " AND ")
- result, err := tx.ExecContext(ctx, stmt, args...)
- if err != nil {
- return FormatError(err)
- }
- rows, _ := result.RowsAffected()
- if rows == 0 {
- return &common.Error{Code: common.NotFound, Err: fmt.Errorf("memo not found")}
- }
- return 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 FormatError(err)
- }
- return nil
- }
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