memos/store/memo.go
boojack ff8851fd9f
fix: golangci-lint version (#1381)
* chore: update interface declare

* chore: update args

* chore: update

* chore: update
2023-03-18 22:34:22 +08:00

389 lines
8.7 KiB
Go

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
}