memos/store/resource.go
Zeng1998 e85d368f87
feat: patch resource filename (#360)
* feat: resource filename rename

* update: resource filename rename

* update: resource filename rename

* update: validation about the filename

Co-authored-by: boojack <stevenlgtm@gmail.com>
2022-10-29 07:40:09 +00:00

357 lines
7.8 KiB
Go

package store
import (
"context"
"database/sql"
"fmt"
"sort"
"strings"
"github.com/usememos/memos/api"
"github.com/usememos/memos/common"
)
// resourceRaw is the store model for an Resource.
// Fields have exactly the same meanings as Resource.
type resourceRaw struct {
ID int
// Standard fields
CreatorID int
CreatedTs int64
UpdatedTs int64
// Domain specific fields
Filename string
Blob []byte
Type string
Size int64
}
func (raw *resourceRaw) toResource() *api.Resource {
return &api.Resource{
ID: raw.ID,
// Standard fields
CreatorID: raw.CreatorID,
CreatedTs: raw.CreatedTs,
UpdatedTs: raw.UpdatedTs,
// Domain specific fields
Filename: raw.Filename,
Blob: raw.Blob,
Type: raw.Type,
Size: raw.Size,
}
}
func (s *Store) ComposeMemoResourceList(ctx context.Context, memo *api.Memo) error {
resourceList, err := s.FindResourceList(ctx, &api.ResourceFind{
MemoID: &memo.ID,
})
if err != nil {
return err
}
for _, resource := range resourceList {
memoResource, err := s.FindMemoResource(ctx, &api.MemoResourceFind{
MemoID: &memo.ID,
ResourceID: &resource.ID,
})
if err != nil {
return err
}
resource.CreatedTs = memoResource.CreatedTs
resource.UpdatedTs = memoResource.UpdatedTs
}
sort.Slice(resourceList, func(i, j int) bool {
if resourceList[i].CreatedTs != resourceList[j].CreatedTs {
return resourceList[i].CreatedTs < resourceList[j].CreatedTs
}
return resourceList[i].ID < resourceList[j].ID
})
memo.ResourceList = resourceList
return nil
}
func (s *Store) CreateResource(ctx context.Context, create *api.ResourceCreate) (*api.Resource, error) {
tx, err := s.db.BeginTx(ctx, nil)
if err != nil {
return nil, FormatError(err)
}
defer tx.Rollback()
resourceRaw, err := createResource(ctx, tx, create)
if err != nil {
return nil, err
}
if err := tx.Commit(); err != nil {
return nil, FormatError(err)
}
if err := s.cache.UpsertCache(api.ResourceCache, resourceRaw.ID, resourceRaw); err != nil {
return nil, err
}
resource := resourceRaw.toResource()
return resource, nil
}
func (s *Store) FindResourceList(ctx context.Context, find *api.ResourceFind) ([]*api.Resource, error) {
tx, err := s.db.BeginTx(ctx, nil)
if err != nil {
return nil, FormatError(err)
}
defer tx.Rollback()
resourceRawList, err := findResourceList(ctx, tx, find)
if err != nil {
return nil, err
}
resourceList := []*api.Resource{}
for _, raw := range resourceRawList {
resourceList = append(resourceList, raw.toResource())
}
return resourceList, nil
}
func (s *Store) FindResource(ctx context.Context, find *api.ResourceFind) (*api.Resource, error) {
if find.ID != nil {
resourceRaw := &resourceRaw{}
has, err := s.cache.FindCache(api.ResourceCache, *find.ID, resourceRaw)
if err != nil {
return nil, err
}
if has {
return resourceRaw.toResource(), nil
}
}
tx, err := s.db.BeginTx(ctx, nil)
if err != nil {
return nil, FormatError(err)
}
defer tx.Rollback()
list, err := findResourceList(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")}
}
resourceRaw := list[0]
if err := s.cache.UpsertCache(api.ResourceCache, resourceRaw.ID, resourceRaw); err != nil {
return nil, err
}
resource := resourceRaw.toResource()
return resource, nil
}
func (s *Store) DeleteResource(ctx context.Context, delete *api.ResourceDelete) error {
tx, err := s.db.BeginTx(ctx, nil)
if err != nil {
return FormatError(err)
}
defer tx.Rollback()
err = deleteResource(ctx, tx, delete)
if err != nil {
return err
}
if err := tx.Commit(); err != nil {
return FormatError(err)
}
// Vacuum sqlite database file size after deleting resource.
if _, err := s.db.Exec("VACUUM"); err != nil {
return err
}
s.cache.DeleteCache(api.ResourceCache, delete.ID)
return nil
}
func (s *Store) PatchResource(ctx context.Context, patch *api.ResourcePatch) (*api.Resource, error) {
tx, err := s.db.BeginTx(ctx, nil)
if err != nil {
return nil, FormatError(err)
}
defer tx.Rollback()
resourceRaw, err := patchResource(ctx, tx, patch)
if err != nil {
return nil, err
}
if err := tx.Commit(); err != nil {
return nil, FormatError(err)
}
if err := s.cache.UpsertCache(api.ResourceCache, resourceRaw.ID, resourceRaw); err != nil {
return nil, err
}
resource := resourceRaw.toResource()
return resource, nil
}
func createResource(ctx context.Context, tx *sql.Tx, create *api.ResourceCreate) (*resourceRaw, error) {
query := `
INSERT INTO resource (
filename,
blob,
type,
size,
creator_id
)
VALUES (?, ?, ?, ?, ?)
RETURNING id, filename, blob, type, size, creator_id, created_ts, updated_ts
`
var resourceRaw resourceRaw
if err := tx.QueryRowContext(ctx, query, create.Filename, create.Blob, create.Type, create.Size, create.CreatorID).Scan(
&resourceRaw.ID,
&resourceRaw.Filename,
&resourceRaw.Blob,
&resourceRaw.Type,
&resourceRaw.Size,
&resourceRaw.CreatorID,
&resourceRaw.CreatedTs,
&resourceRaw.UpdatedTs,
); err != nil {
return nil, FormatError(err)
}
return &resourceRaw, nil
}
func patchResource(ctx context.Context, tx *sql.Tx, patch *api.ResourcePatch) (*resourceRaw, error) {
set, args := []string{}, []interface{}{}
if v := patch.UpdatedTs; v != nil {
set, args = append(set, "updated_ts = ?"), append(args, *v)
}
if v := patch.Filename; v != nil {
set, args = append(set, "filename = ?"), append(args, *v)
}
args = append(args, patch.ID)
query := `
UPDATE resource
SET ` + strings.Join(set, ", ") + `
WHERE id = ?
RETURNING id, filename, blob, type, size, creator_id, created_ts, updated_ts
`
var resourceRaw resourceRaw
if err := tx.QueryRowContext(ctx, query, args...).Scan(
&resourceRaw.ID,
&resourceRaw.Filename,
&resourceRaw.Blob,
&resourceRaw.Type,
&resourceRaw.Size,
&resourceRaw.CreatorID,
&resourceRaw.CreatedTs,
&resourceRaw.UpdatedTs,
); err != nil {
return nil, FormatError(err)
}
return &resourceRaw, nil
}
func findResourceList(ctx context.Context, tx *sql.Tx, find *api.ResourceFind) ([]*resourceRaw, error) {
where, args := []string{"1 = 1"}, []interface{}{}
if v := find.ID; v != nil {
where, args = append(where, "id = ?"), append(args, *v)
}
if v := find.CreatorID; v != nil {
where, args = append(where, "creator_id = ?"), append(args, *v)
}
if v := find.Filename; v != nil {
where, args = append(where, "filename = ?"), append(args, *v)
}
if v := find.MemoID; v != nil {
where, args = append(where, "id in (SELECT resource_id FROM memo_resource WHERE memo_id = ?)"), append(args, *v)
}
query := `
SELECT
id,
filename,
blob,
type,
size,
creator_id,
created_ts,
updated_ts
FROM resource
WHERE ` + strings.Join(where, " AND ") + `
ORDER BY id DESC
`
rows, err := tx.QueryContext(ctx, query, args...)
if err != nil {
return nil, FormatError(err)
}
defer rows.Close()
resourceRawList := make([]*resourceRaw, 0)
for rows.Next() {
var resourceRaw resourceRaw
if err := rows.Scan(
&resourceRaw.ID,
&resourceRaw.Filename,
&resourceRaw.Blob,
&resourceRaw.Type,
&resourceRaw.Size,
&resourceRaw.CreatorID,
&resourceRaw.CreatedTs,
&resourceRaw.UpdatedTs,
); err != nil {
return nil, FormatError(err)
}
resourceRawList = append(resourceRawList, &resourceRaw)
}
if err := rows.Err(); err != nil {
return nil, FormatError(err)
}
return resourceRawList, nil
}
func deleteResource(ctx context.Context, tx *sql.Tx, delete *api.ResourceDelete) error {
result, err := tx.ExecContext(ctx, `
DELETE FROM resource WHERE id = ? AND creator_id = ?
`, delete.ID, delete.CreatorID)
if err != nil {
return FormatError(err)
}
rows, _ := result.RowsAffected()
if rows == 0 {
return &common.Error{Code: common.NotFound, Err: fmt.Errorf("resource ID not found: %d", delete.ID)}
}
return nil
}