mirror of
https://github.com/usememos/memos.git
synced 2025-10-31 16:59:30 +08:00
388 lines
8.7 KiB
Go
388 lines
8.7 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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"github.com/usememos/memos/api"
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"github.com/usememos/memos/common"
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)
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// memoRaw is the store model for an Memo.
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// Fields have exactly the same meanings as Memo.
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type memoRaw struct {
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ID int
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// Standard fields
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RowStatus api.RowStatus
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CreatorID int
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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 api.Visibility
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Pinned bool
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}
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// toMemo creates an instance of Memo based on the memoRaw.
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// This is intended to be called when we need to compose an Memo relationship.
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func (raw *memoRaw) toMemo() *api.Memo {
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return &api.Memo{
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ID: raw.ID,
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// Standard fields
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RowStatus: raw.RowStatus,
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CreatorID: raw.CreatorID,
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CreatedTs: raw.CreatedTs,
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UpdatedTs: raw.UpdatedTs,
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// Domain specific fields
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Content: raw.Content,
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Visibility: raw.Visibility,
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Pinned: raw.Pinned,
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}
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}
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func (s *Store) ComposeMemo(ctx context.Context, memo *api.Memo) (*api.Memo, error) {
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if err := s.ComposeMemoCreator(ctx, memo); err != nil {
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return nil, err
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}
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if err := s.ComposeMemoResourceList(ctx, memo); err != nil {
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return nil, err
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}
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return memo, nil
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}
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func (s *Store) CreateMemo(ctx context.Context, create *api.MemoCreate) (*api.Memo, error) {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, FormatError(err)
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}
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defer tx.Rollback()
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memoRaw, err := createMemoRaw(ctx, tx, create)
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if err != nil {
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, FormatError(err)
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}
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s.memoCache.Store(memoRaw.ID, memoRaw)
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memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
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if err != nil {
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return nil, err
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}
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return memo, nil
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}
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func (s *Store) PatchMemo(ctx context.Context, patch *api.MemoPatch) (*api.Memo, error) {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, FormatError(err)
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}
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defer tx.Rollback()
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memoRaw, err := patchMemoRaw(ctx, tx, patch)
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if err != nil {
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, FormatError(err)
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}
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s.memoCache.Store(memoRaw.ID, memoRaw)
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memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
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if err != nil {
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return nil, err
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}
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return memo, nil
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}
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func (s *Store) FindMemoList(ctx context.Context, find *api.MemoFind) ([]*api.Memo, error) {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, FormatError(err)
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}
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defer tx.Rollback()
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memoRawList, err := findMemoRawList(ctx, tx, find)
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if err != nil {
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return nil, err
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}
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list := []*api.Memo{}
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for _, raw := range memoRawList {
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memo, err := s.ComposeMemo(ctx, raw.toMemo())
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if err != nil {
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return nil, err
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}
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list = append(list, memo)
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}
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return list, nil
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}
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func (s *Store) FindMemo(ctx context.Context, find *api.MemoFind) (*api.Memo, error) {
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if find.ID != nil {
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if memo, ok := s.memoCache.Load(*find.ID); ok {
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memoRaw := memo.(*memoRaw)
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memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
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if err != nil {
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return nil, err
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}
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return memo, nil
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}
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}
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, FormatError(err)
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}
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defer tx.Rollback()
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list, err := findMemoRawList(ctx, tx, 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, &common.Error{Code: common.NotFound, Err: fmt.Errorf("not found")}
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}
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memoRaw := list[0]
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s.memoCache.Store(memoRaw.ID, memoRaw)
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memo, err := s.ComposeMemo(ctx, memoRaw.toMemo())
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if err != nil {
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return nil, err
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}
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return memo, nil
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}
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func (s *Store) DeleteMemo(ctx context.Context, delete *api.MemoDelete) error {
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return FormatError(err)
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}
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defer tx.Rollback()
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if err := deleteMemo(ctx, tx, delete); err != nil {
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return FormatError(err)
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}
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if err := vacuum(ctx, tx); err != nil {
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return err
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}
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if err := tx.Commit(); err != nil {
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return FormatError(err)
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}
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s.memoCache.Delete(delete.ID)
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return nil
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}
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func createMemoRaw(ctx context.Context, tx *sql.Tx, create *api.MemoCreate) (*memoRaw, error) {
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set := []string{"creator_id", "content", "visibility"}
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args := []interface{}{create.CreatorID, create.Content, create.Visibility}
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placeholder := []string{"?", "?", "?"}
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if v := create.CreatedTs; v != nil {
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set, args, placeholder = append(set, "created_ts"), append(args, *v), append(placeholder, "?")
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}
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query := `
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INSERT INTO memo (
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` + strings.Join(set, ", ") + `
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)
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VALUES (` + strings.Join(placeholder, ",") + `)
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RETURNING id, creator_id, created_ts, updated_ts, row_status, content, visibility
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`
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var memoRaw memoRaw
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if err := tx.QueryRowContext(ctx, query, args...).Scan(
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&memoRaw.ID,
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&memoRaw.CreatorID,
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&memoRaw.CreatedTs,
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&memoRaw.UpdatedTs,
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&memoRaw.RowStatus,
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&memoRaw.Content,
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&memoRaw.Visibility,
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); err != nil {
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return nil, FormatError(err)
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}
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return &memoRaw, nil
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}
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func patchMemoRaw(ctx context.Context, tx *sql.Tx, patch *api.MemoPatch) (*memoRaw, error) {
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set, args := []string{}, []interface{}{}
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if v := patch.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 := patch.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 := patch.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 := patch.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 := patch.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, patch.ID)
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query := `
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UPDATE memo
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SET ` + strings.Join(set, ", ") + `
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WHERE id = ?
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RETURNING id, creator_id, created_ts, updated_ts, row_status, content, visibility
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`
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var memoRaw memoRaw
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if err := tx.QueryRowContext(ctx, query, args...).Scan(
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&memoRaw.ID,
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&memoRaw.CreatorID,
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&memoRaw.CreatedTs,
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&memoRaw.UpdatedTs,
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&memoRaw.RowStatus,
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&memoRaw.Content,
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&memoRaw.Visibility,
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); err != nil {
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return nil, FormatError(err)
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}
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return &memoRaw, nil
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}
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func findMemoRawList(ctx context.Context, tx *sql.Tx, find *api.MemoFind) ([]*memoRaw, error) {
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where, args := []string{"1 = 1"}, []interface{}{}
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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.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; v != nil {
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where, args = append(where, "memo.content LIKE ?"), append(args, "%"+*v+"%")
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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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query := `
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SELECT
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memo.id,
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memo.creator_id,
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memo.created_ts,
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memo.updated_ts,
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memo.row_status,
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memo.content,
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memo.visibility,
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IFNULL(memo_organizer.pinned, 0) AS pinned
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FROM memo
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LEFT JOIN memo_organizer ON memo_organizer.memo_id = memo.id AND memo_organizer.user_id = memo.creator_id
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WHERE ` + strings.Join(where, " AND ") + `
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ORDER BY pinned DESC, memo.created_ts DESC
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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 := tx.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, FormatError(err)
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}
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defer rows.Close()
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memoRawList := make([]*memoRaw, 0)
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for rows.Next() {
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var memoRaw memoRaw
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var pinned sql.NullBool
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if err := rows.Scan(
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&memoRaw.ID,
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&memoRaw.CreatorID,
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&memoRaw.CreatedTs,
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&memoRaw.UpdatedTs,
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&memoRaw.RowStatus,
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&memoRaw.Content,
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&memoRaw.Visibility,
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&pinned,
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); err != nil {
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return nil, FormatError(err)
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}
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if pinned.Valid {
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memoRaw.Pinned = pinned.Bool
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}
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memoRawList = append(memoRawList, &memoRaw)
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}
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if err := rows.Err(); err != nil {
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return nil, FormatError(err)
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}
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return memoRawList, nil
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}
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func deleteMemo(ctx context.Context, tx *sql.Tx, delete *api.MemoDelete) error {
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where, args := []string{"id = ?"}, []interface{}{delete.ID}
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stmt := `DELETE FROM memo WHERE ` + strings.Join(where, " AND ")
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result, err := tx.ExecContext(ctx, stmt, args...)
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if err != nil {
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return FormatError(err)
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}
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rows, _ := result.RowsAffected()
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if rows == 0 {
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return &common.Error{Code: common.NotFound, Err: fmt.Errorf("memo not found")}
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}
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return 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 FormatError(err)
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}
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return nil
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}
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