grafana/pkg/services/libraryelements/database.go
Kristin Laemmert 9de00c8eb2
chore/backend: move dashboard errors to dashboard service (#51593)
* chore/backend: move dashboard errors to dashboard service

Dashboard-related models are slowly moving out of the models package and into dashboard services. This commit moves dashboard-related errors; the rest will come in later commits.

There are no logical code changes, this is only a structural (package) move.

* lint lint lint
2022-06-30 09:31:54 -04:00

757 lines
26 KiB
Go

package libraryelements
import (
"context"
"encoding/json"
"errors"
"fmt"
"strings"
"time"
"github.com/grafana/grafana/pkg/api/dtos"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/services/dashboards"
"github.com/grafana/grafana/pkg/services/search"
"github.com/grafana/grafana/pkg/services/sqlstore"
"github.com/grafana/grafana/pkg/services/sqlstore/migrator"
"github.com/grafana/grafana/pkg/util"
)
const (
selectLibraryElementDTOWithMeta = `
SELECT DISTINCT
le.name, le.id, le.org_id, le.folder_id, le.uid, le.kind, le.type, le.description, le.model, le.created, le.created_by, le.updated, le.updated_by, le.version
, u1.login AS created_by_name
, u1.email AS created_by_email
, u2.login AS updated_by_name
, u2.email AS updated_by_email
, (SELECT COUNT(connection_id) FROM ` + models.LibraryElementConnectionTableName + ` WHERE element_id = le.id AND kind=1) AS connected_dashboards`
)
const deleteInvalidConnections = "DELETE FROM library_element_connection WHERE connection_id IN (SELECT connection_id as id FROM library_element_connection WHERE element_id=? EXCEPT SELECT id from dashboard)"
func getFromLibraryElementDTOWithMeta(dialect migrator.Dialect) string {
user := dialect.Quote("user")
userJoin := `
FROM library_element AS le
LEFT JOIN ` + user + ` AS u1 ON le.created_by = u1.id
LEFT JOIN ` + user + ` AS u2 ON le.updated_by = u2.id
`
return userJoin
}
func syncFieldsWithModel(libraryElement *LibraryElement) error {
var model map[string]interface{}
if err := json.Unmarshal(libraryElement.Model, &model); err != nil {
return err
}
if models.LibraryElementKind(libraryElement.Kind) == models.VariableElement {
model["name"] = libraryElement.Name
}
if model["type"] != nil {
libraryElement.Type = model["type"].(string)
} else {
model["type"] = libraryElement.Type
}
if model["description"] != nil {
libraryElement.Description = model["description"].(string)
} else {
model["description"] = libraryElement.Description
}
syncedModel, err := json.Marshal(&model)
if err != nil {
return err
}
libraryElement.Model = syncedModel
return nil
}
func getLibraryElement(dialect migrator.Dialect, session *sqlstore.DBSession, uid string, orgID int64) (LibraryElementWithMeta, error) {
elements := make([]LibraryElementWithMeta, 0)
sql := selectLibraryElementDTOWithMeta +
", coalesce(dashboard.title, 'General') AS folder_name" +
", coalesce(dashboard.uid, '') AS folder_uid" +
getFromLibraryElementDTOWithMeta(dialect) +
" LEFT JOIN dashboard AS dashboard ON dashboard.id = le.folder_id" +
" WHERE le.uid=? AND le.org_id=?"
sess := session.SQL(sql, uid, orgID)
err := sess.Find(&elements)
if err != nil {
return LibraryElementWithMeta{}, err
}
if len(elements) == 0 {
return LibraryElementWithMeta{}, ErrLibraryElementNotFound
}
if len(elements) > 1 {
return LibraryElementWithMeta{}, fmt.Errorf("found %d elements, while expecting at most one", len(elements))
}
return elements[0], nil
}
// createLibraryElement adds a library element.
func (l *LibraryElementService) createLibraryElement(c context.Context, signedInUser *models.SignedInUser, cmd CreateLibraryElementCommand) (LibraryElementDTO, error) {
if err := l.requireSupportedElementKind(cmd.Kind); err != nil {
return LibraryElementDTO{}, err
}
createUID := cmd.UID
if len(createUID) == 0 {
createUID = util.GenerateShortUID()
} else {
if !util.IsValidShortUID(createUID) {
return LibraryElementDTO{}, errLibraryElementInvalidUID
} else if util.IsShortUIDTooLong(createUID) {
return LibraryElementDTO{}, errLibraryElementUIDTooLong
}
}
element := LibraryElement{
OrgID: signedInUser.OrgId,
FolderID: cmd.FolderID,
UID: createUID,
Name: cmd.Name,
Model: cmd.Model,
Version: 1,
Kind: cmd.Kind,
Created: time.Now(),
Updated: time.Now(),
CreatedBy: signedInUser.UserId,
UpdatedBy: signedInUser.UserId,
}
if err := syncFieldsWithModel(&element); err != nil {
return LibraryElementDTO{}, err
}
err := l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
if err := l.requireEditPermissionsOnFolder(c, signedInUser, cmd.FolderID); err != nil {
return err
}
if _, err := session.Insert(&element); err != nil {
if l.SQLStore.Dialect.IsUniqueConstraintViolation(err) {
return errLibraryElementAlreadyExists
}
return err
}
return nil
})
dto := LibraryElementDTO{
ID: element.ID,
OrgID: element.OrgID,
FolderID: element.FolderID,
UID: element.UID,
Name: element.Name,
Kind: element.Kind,
Type: element.Type,
Description: element.Description,
Model: element.Model,
Version: element.Version,
Meta: LibraryElementDTOMeta{
ConnectedDashboards: 0,
Created: element.Created,
Updated: element.Updated,
CreatedBy: LibraryElementDTOMetaUser{
ID: element.CreatedBy,
Name: signedInUser.Login,
AvatarURL: dtos.GetGravatarUrl(signedInUser.Email),
},
UpdatedBy: LibraryElementDTOMetaUser{
ID: element.UpdatedBy,
Name: signedInUser.Login,
AvatarURL: dtos.GetGravatarUrl(signedInUser.Email),
},
},
}
return dto, err
}
// deleteLibraryElement deletes a library element.
func (l *LibraryElementService) deleteLibraryElement(c context.Context, signedInUser *models.SignedInUser, uid string) (int64, error) {
var elementID int64
err := l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
element, err := getLibraryElement(l.SQLStore.Dialect, session, uid, signedInUser.OrgId)
if err != nil {
return err
}
if err := l.requireEditPermissionsOnFolder(c, signedInUser, element.FolderID); err != nil {
return err
}
// Delete any hanging/invalid connections
if _, err = session.Exec(deleteInvalidConnections, element.ID); err != nil {
return err
}
var connectionIDs []struct {
ConnectionID int64 `xorm:"connection_id"`
}
sql := "SELECT connection_id FROM library_element_connection WHERE element_id=?"
if err := session.SQL(sql, element.ID).Find(&connectionIDs); err != nil {
return err
} else if len(connectionIDs) > 0 {
return errLibraryElementHasConnections
}
result, err := session.Exec("DELETE FROM library_element WHERE id=?", element.ID)
if err != nil {
return err
}
if rowsAffected, err := result.RowsAffected(); err != nil {
return err
} else if rowsAffected != 1 {
return ErrLibraryElementNotFound
}
elementID = element.ID
return nil
})
return elementID, err
}
// getLibraryElements gets a Library Element where param == value
func getLibraryElements(c context.Context, store *sqlstore.SQLStore, signedInUser *models.SignedInUser, params []Pair) ([]LibraryElementDTO, error) {
libraryElements := make([]LibraryElementWithMeta, 0)
err := store.WithDbSession(c, func(session *sqlstore.DBSession) error {
builder := sqlstore.SQLBuilder{}
builder.Write(selectLibraryElementDTOWithMeta)
builder.Write(", 'General' as folder_name ")
builder.Write(", '' as folder_uid ")
builder.Write(getFromLibraryElementDTOWithMeta(store.Dialect))
writeParamSelectorSQL(&builder, append(params, Pair{"folder_id", 0})...)
builder.Write(" UNION ")
builder.Write(selectLibraryElementDTOWithMeta)
builder.Write(", dashboard.title as folder_name ")
builder.Write(", dashboard.uid as folder_uid ")
builder.Write(getFromLibraryElementDTOWithMeta(store.Dialect))
builder.Write(" INNER JOIN dashboard AS dashboard on le.folder_id = dashboard.id AND le.folder_id <> 0")
writeParamSelectorSQL(&builder, params...)
if signedInUser.OrgRole != models.ROLE_ADMIN {
builder.WriteDashboardPermissionFilter(signedInUser, models.PERMISSION_VIEW)
}
builder.Write(` OR dashboard.id=0`)
if err := session.SQL(builder.GetSQLString(), builder.GetParams()...).Find(&libraryElements); err != nil {
return err
}
if len(libraryElements) == 0 {
return ErrLibraryElementNotFound
}
return nil
})
if err != nil {
return []LibraryElementDTO{}, err
}
leDtos := make([]LibraryElementDTO, len(libraryElements))
for i, libraryElement := range libraryElements {
leDtos[i] = LibraryElementDTO{
ID: libraryElement.ID,
OrgID: libraryElement.OrgID,
FolderID: libraryElement.FolderID,
FolderUID: libraryElement.FolderUID,
UID: libraryElement.UID,
Name: libraryElement.Name,
Kind: libraryElement.Kind,
Type: libraryElement.Type,
Description: libraryElement.Description,
Model: libraryElement.Model,
Version: libraryElement.Version,
Meta: LibraryElementDTOMeta{
FolderName: libraryElement.FolderName,
FolderUID: libraryElement.FolderUID,
ConnectedDashboards: libraryElement.ConnectedDashboards,
Created: libraryElement.Created,
Updated: libraryElement.Updated,
CreatedBy: LibraryElementDTOMetaUser{
ID: libraryElement.CreatedBy,
Name: libraryElement.CreatedByName,
AvatarURL: dtos.GetGravatarUrl(libraryElement.CreatedByEmail),
},
UpdatedBy: LibraryElementDTOMetaUser{
ID: libraryElement.UpdatedBy,
Name: libraryElement.UpdatedByName,
AvatarURL: dtos.GetGravatarUrl(libraryElement.UpdatedByEmail),
},
},
}
}
return leDtos, nil
}
// getLibraryElementByUid gets a Library Element by uid.
func (l *LibraryElementService) getLibraryElementByUid(c context.Context, signedInUser *models.SignedInUser, UID string) (LibraryElementDTO, error) {
libraryElements, err := getLibraryElements(c, l.SQLStore, signedInUser, []Pair{{key: "org_id", value: signedInUser.OrgId}, {key: "uid", value: UID}})
if err != nil {
return LibraryElementDTO{}, err
}
if len(libraryElements) > 1 {
return LibraryElementDTO{}, fmt.Errorf("found %d elements, while expecting at most one", len(libraryElements))
}
return libraryElements[0], nil
}
// getLibraryElementByName gets a Library Element by name.
func (l *LibraryElementService) getLibraryElementsByName(c context.Context, signedInUser *models.SignedInUser, name string) ([]LibraryElementDTO, error) {
return getLibraryElements(c, l.SQLStore, signedInUser, []Pair{{"org_id", signedInUser.OrgId}, {"name", name}})
}
// getAllLibraryElements gets all Library Elements.
func (l *LibraryElementService) getAllLibraryElements(c context.Context, signedInUser *models.SignedInUser, query searchLibraryElementsQuery) (LibraryElementSearchResult, error) {
elements := make([]LibraryElementWithMeta, 0)
result := LibraryElementSearchResult{}
if query.perPage <= 0 {
query.perPage = 100
}
if query.page <= 0 {
query.page = 1
}
var typeFilter []string
if len(strings.TrimSpace(query.typeFilter)) > 0 {
typeFilter = strings.Split(query.typeFilter, ",")
}
folderFilter := parseFolderFilter(query)
if folderFilter.parseError != nil {
return LibraryElementSearchResult{}, folderFilter.parseError
}
err := l.SQLStore.WithDbSession(c, func(session *sqlstore.DBSession) error {
builder := sqlstore.SQLBuilder{}
if folderFilter.includeGeneralFolder {
builder.Write(selectLibraryElementDTOWithMeta)
builder.Write(", 'General' as folder_name ")
builder.Write(", '' as folder_uid ")
builder.Write(getFromLibraryElementDTOWithMeta(l.SQLStore.Dialect))
builder.Write(` WHERE le.org_id=? AND le.folder_id=0`, signedInUser.OrgId)
writeKindSQL(query, &builder)
writeSearchStringSQL(query, l.SQLStore, &builder)
writeExcludeSQL(query, &builder)
writeTypeFilterSQL(typeFilter, &builder)
builder.Write(" UNION ")
}
builder.Write(selectLibraryElementDTOWithMeta)
builder.Write(", dashboard.title as folder_name ")
builder.Write(", dashboard.uid as folder_uid ")
builder.Write(getFromLibraryElementDTOWithMeta(l.SQLStore.Dialect))
builder.Write(" INNER JOIN dashboard AS dashboard on le.folder_id = dashboard.id AND le.folder_id<>0")
builder.Write(` WHERE le.org_id=?`, signedInUser.OrgId)
writeKindSQL(query, &builder)
writeSearchStringSQL(query, l.SQLStore, &builder)
writeExcludeSQL(query, &builder)
writeTypeFilterSQL(typeFilter, &builder)
if err := folderFilter.writeFolderFilterSQL(false, &builder); err != nil {
return err
}
if signedInUser.OrgRole != models.ROLE_ADMIN {
builder.WriteDashboardPermissionFilter(signedInUser, models.PERMISSION_VIEW)
}
if query.sortDirection == search.SortAlphaDesc.Name {
builder.Write(" ORDER BY 1 DESC")
} else {
builder.Write(" ORDER BY 1 ASC")
}
writePerPageSQL(query, l.SQLStore, &builder)
if err := session.SQL(builder.GetSQLString(), builder.GetParams()...).Find(&elements); err != nil {
return err
}
retDTOs := make([]LibraryElementDTO, 0)
for _, element := range elements {
retDTOs = append(retDTOs, LibraryElementDTO{
ID: element.ID,
OrgID: element.OrgID,
FolderID: element.FolderID,
FolderUID: element.FolderUID,
UID: element.UID,
Name: element.Name,
Kind: element.Kind,
Type: element.Type,
Description: element.Description,
Model: element.Model,
Version: element.Version,
Meta: LibraryElementDTOMeta{
FolderName: element.FolderName,
FolderUID: element.FolderUID,
ConnectedDashboards: element.ConnectedDashboards,
Created: element.Created,
Updated: element.Updated,
CreatedBy: LibraryElementDTOMetaUser{
ID: element.CreatedBy,
Name: element.CreatedByName,
AvatarURL: dtos.GetGravatarUrl(element.CreatedByEmail),
},
UpdatedBy: LibraryElementDTOMetaUser{
ID: element.UpdatedBy,
Name: element.UpdatedByName,
AvatarURL: dtos.GetGravatarUrl(element.UpdatedByEmail),
},
},
})
}
var libraryElements []LibraryElement
countBuilder := sqlstore.SQLBuilder{}
countBuilder.Write("SELECT * FROM library_element AS le")
countBuilder.Write(` WHERE le.org_id=?`, signedInUser.OrgId)
writeKindSQL(query, &countBuilder)
writeSearchStringSQL(query, l.SQLStore, &countBuilder)
writeExcludeSQL(query, &countBuilder)
writeTypeFilterSQL(typeFilter, &countBuilder)
if err := folderFilter.writeFolderFilterSQL(true, &countBuilder); err != nil {
return err
}
if err := session.SQL(countBuilder.GetSQLString(), countBuilder.GetParams()...).Find(&libraryElements); err != nil {
return err
}
result = LibraryElementSearchResult{
TotalCount: int64(len(libraryElements)),
Elements: retDTOs,
Page: query.page,
PerPage: query.perPage,
}
return nil
})
return result, err
}
func (l *LibraryElementService) handleFolderIDPatches(ctx context.Context, elementToPatch *LibraryElement, fromFolderID int64, toFolderID int64, user *models.SignedInUser) error {
// FolderID was not provided in the PATCH request
if toFolderID == -1 {
toFolderID = fromFolderID
}
// FolderID was provided in the PATCH request
if toFolderID != -1 && toFolderID != fromFolderID {
if err := l.requireEditPermissionsOnFolder(ctx, user, toFolderID); err != nil {
return err
}
}
// Always check permissions for the folder where library element resides
if err := l.requireEditPermissionsOnFolder(ctx, user, fromFolderID); err != nil {
return err
}
elementToPatch.FolderID = toFolderID
return nil
}
// patchLibraryElement updates a Library Element.
func (l *LibraryElementService) patchLibraryElement(c context.Context, signedInUser *models.SignedInUser, cmd PatchLibraryElementCommand, uid string) (LibraryElementDTO, error) {
var dto LibraryElementDTO
if err := l.requireSupportedElementKind(cmd.Kind); err != nil {
return LibraryElementDTO{}, err
}
err := l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
elementInDB, err := getLibraryElement(l.SQLStore.Dialect, session, uid, signedInUser.OrgId)
if err != nil {
return err
}
if elementInDB.Version != cmd.Version {
return errLibraryElementVersionMismatch
}
updateUID := cmd.UID
if len(updateUID) == 0 {
updateUID = uid
} else if updateUID != uid {
if !util.IsValidShortUID(updateUID) {
return errLibraryElementInvalidUID
} else if util.IsShortUIDTooLong(updateUID) {
return errLibraryElementUIDTooLong
}
_, err := getLibraryElement(l.SQLStore.Dialect, session, updateUID, signedInUser.OrgId)
if !errors.Is(err, ErrLibraryElementNotFound) {
return errLibraryElementAlreadyExists
}
}
var libraryElement = LibraryElement{
ID: elementInDB.ID,
OrgID: signedInUser.OrgId,
FolderID: cmd.FolderID,
UID: updateUID,
Name: cmd.Name,
Kind: elementInDB.Kind,
Type: elementInDB.Type,
Description: elementInDB.Description,
Model: cmd.Model,
Version: elementInDB.Version + 1,
Created: elementInDB.Created,
CreatedBy: elementInDB.CreatedBy,
Updated: time.Now(),
UpdatedBy: signedInUser.UserId,
}
if cmd.Name == "" {
libraryElement.Name = elementInDB.Name
}
if cmd.Model == nil {
libraryElement.Model = elementInDB.Model
}
if err := l.handleFolderIDPatches(c, &libraryElement, elementInDB.FolderID, cmd.FolderID, signedInUser); err != nil {
return err
}
if err := syncFieldsWithModel(&libraryElement); err != nil {
return err
}
if rowsAffected, err := session.ID(elementInDB.ID).Update(&libraryElement); err != nil {
if l.SQLStore.Dialect.IsUniqueConstraintViolation(err) {
return errLibraryElementAlreadyExists
}
return err
} else if rowsAffected != 1 {
return ErrLibraryElementNotFound
}
dto = LibraryElementDTO{
ID: libraryElement.ID,
OrgID: libraryElement.OrgID,
FolderID: libraryElement.FolderID,
UID: libraryElement.UID,
Name: libraryElement.Name,
Kind: libraryElement.Kind,
Type: libraryElement.Type,
Description: libraryElement.Description,
Model: libraryElement.Model,
Version: libraryElement.Version,
Meta: LibraryElementDTOMeta{
ConnectedDashboards: elementInDB.ConnectedDashboards,
Created: libraryElement.Created,
Updated: libraryElement.Updated,
CreatedBy: LibraryElementDTOMetaUser{
ID: elementInDB.CreatedBy,
Name: elementInDB.CreatedByName,
AvatarURL: dtos.GetGravatarUrl(elementInDB.CreatedByEmail),
},
UpdatedBy: LibraryElementDTOMetaUser{
ID: libraryElement.UpdatedBy,
Name: signedInUser.Login,
AvatarURL: dtos.GetGravatarUrl(signedInUser.Email),
},
},
}
return nil
})
return dto, err
}
// getConnections gets all connections for a Library Element.
func (l *LibraryElementService) getConnections(c context.Context, signedInUser *models.SignedInUser, uid string) ([]LibraryElementConnectionDTO, error) {
connections := make([]LibraryElementConnectionDTO, 0)
err := l.SQLStore.WithDbSession(c, func(session *sqlstore.DBSession) error {
element, err := getLibraryElement(l.SQLStore.Dialect, session, uid, signedInUser.OrgId)
if err != nil {
return err
}
var libraryElementConnections []libraryElementConnectionWithMeta
builder := sqlstore.SQLBuilder{}
builder.Write("SELECT lec.*, u1.login AS created_by_name, u1.email AS created_by_email")
builder.Write(" FROM " + models.LibraryElementConnectionTableName + " AS lec")
builder.Write(" LEFT JOIN " + l.SQLStore.Dialect.Quote("user") + " AS u1 ON lec.created_by = u1.id")
builder.Write(" INNER JOIN dashboard AS dashboard on lec.connection_id = dashboard.id")
builder.Write(` WHERE lec.element_id=?`, element.ID)
if signedInUser.OrgRole != models.ROLE_ADMIN {
builder.WriteDashboardPermissionFilter(signedInUser, models.PERMISSION_VIEW)
}
if err := session.SQL(builder.GetSQLString(), builder.GetParams()...).Find(&libraryElementConnections); err != nil {
return err
}
for _, connection := range libraryElementConnections {
connections = append(connections, LibraryElementConnectionDTO{
ID: connection.ID,
Kind: connection.Kind,
ElementID: connection.ElementID,
ConnectionID: connection.ConnectionID,
Created: connection.Created,
CreatedBy: LibraryElementDTOMetaUser{
ID: connection.CreatedBy,
Name: connection.CreatedByName,
AvatarURL: dtos.GetGravatarUrl(connection.CreatedByEmail),
},
})
}
return nil
})
return connections, err
}
//getElementsForDashboardID gets all elements for a specific dashboard
func (l *LibraryElementService) getElementsForDashboardID(c context.Context, dashboardID int64) (map[string]LibraryElementDTO, error) {
libraryElementMap := make(map[string]LibraryElementDTO)
err := l.SQLStore.WithDbSession(c, func(session *sqlstore.DBSession) error {
var libraryElements []LibraryElementWithMeta
sql := selectLibraryElementDTOWithMeta +
", coalesce(dashboard.title, 'General') AS folder_name" +
", coalesce(dashboard.uid, '') AS folder_uid" +
getFromLibraryElementDTOWithMeta(l.SQLStore.Dialect) +
" LEFT JOIN dashboard AS dashboard ON dashboard.id = le.folder_id" +
" INNER JOIN " + models.LibraryElementConnectionTableName + " AS lce ON lce.element_id = le.id AND lce.kind=1 AND lce.connection_id=?"
sess := session.SQL(sql, dashboardID)
err := sess.Find(&libraryElements)
if err != nil {
return err
}
for _, element := range libraryElements {
libraryElementMap[element.UID] = LibraryElementDTO{
ID: element.ID,
OrgID: element.OrgID,
FolderID: element.FolderID,
UID: element.UID,
Name: element.Name,
Kind: element.Kind,
Type: element.Type,
Description: element.Description,
Model: element.Model,
Version: element.Version,
Meta: LibraryElementDTOMeta{
FolderName: element.FolderName,
FolderUID: element.FolderUID,
ConnectedDashboards: element.ConnectedDashboards,
Created: element.Created,
Updated: element.Updated,
CreatedBy: LibraryElementDTOMetaUser{
ID: element.CreatedBy,
Name: element.CreatedByName,
AvatarURL: dtos.GetGravatarUrl(element.CreatedByEmail),
},
UpdatedBy: LibraryElementDTOMetaUser{
ID: element.UpdatedBy,
Name: element.UpdatedByName,
AvatarURL: dtos.GetGravatarUrl(element.UpdatedByEmail),
},
},
}
}
return nil
})
return libraryElementMap, err
}
// connectElementsToDashboardID adds connections for all elements Library Elements in a Dashboard.
func (l *LibraryElementService) connectElementsToDashboardID(c context.Context, signedInUser *models.SignedInUser, elementUIDs []string, dashboardID int64) error {
if err := l.requireEditPermissionsOnDashboard(c, signedInUser, dashboardID); err != nil {
return err
}
err := l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
_, err := session.Exec("DELETE FROM "+models.LibraryElementConnectionTableName+" WHERE kind=1 AND connection_id=?", dashboardID)
if err != nil {
return err
}
for _, elementUID := range elementUIDs {
element, err := getLibraryElement(l.SQLStore.Dialect, session, elementUID, signedInUser.OrgId)
if err != nil {
return err
}
if err := l.requireViewPermissionsOnFolder(c, signedInUser, element.FolderID); err != nil {
return err
}
connection := libraryElementConnection{
ElementID: element.ID,
Kind: 1,
ConnectionID: dashboardID,
Created: time.Now(),
CreatedBy: signedInUser.UserId,
}
if _, err := session.Insert(&connection); err != nil {
if l.SQLStore.Dialect.IsUniqueConstraintViolation(err) {
return nil
}
return err
}
}
return nil
})
return err
}
// disconnectElementsFromDashboardID deletes connections for all Library Elements in a Dashboard.
func (l *LibraryElementService) disconnectElementsFromDashboardID(c context.Context, dashboardID int64) error {
return l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
_, err := session.Exec("DELETE FROM "+models.LibraryElementConnectionTableName+" WHERE kind=1 AND connection_id=?", dashboardID)
if err != nil {
return err
}
return nil
})
}
// deleteLibraryElementsInFolderUID deletes all Library Elements in a folder.
func (l *LibraryElementService) deleteLibraryElementsInFolderUID(c context.Context, signedInUser *models.SignedInUser, folderUID string) error {
return l.SQLStore.WithTransactionalDbSession(c, func(session *sqlstore.DBSession) error {
var folderUIDs []struct {
ID int64 `xorm:"id"`
}
err := session.SQL("SELECT id from dashboard WHERE uid=? AND org_id=? AND is_folder=?", folderUID, signedInUser.OrgId, l.SQLStore.Dialect.BooleanStr(true)).Find(&folderUIDs)
if err != nil {
return err
}
if len(folderUIDs) == 0 {
return dashboards.ErrFolderNotFound
}
if len(folderUIDs) != 1 {
return fmt.Errorf("found %d folders, while expecting at most one", len(folderUIDs))
}
folderID := folderUIDs[0].ID
if err := l.requireEditPermissionsOnFolder(c, signedInUser, folderID); err != nil {
return err
}
var connectionIDs []struct {
ConnectionID int64 `xorm:"connection_id"`
}
sql := "SELECT lec.connection_id FROM library_element AS le"
sql += " INNER JOIN " + models.LibraryElementConnectionTableName + " AS lec on le.id = lec.element_id"
sql += " WHERE le.folder_id=? AND le.org_id=?"
err = session.SQL(sql, folderID, signedInUser.OrgId).Find(&connectionIDs)
if err != nil {
return err
}
if len(connectionIDs) > 0 {
return ErrFolderHasConnectedLibraryElements
}
var elementIDs []struct {
ID int64 `xorm:"id"`
}
err = session.SQL("SELECT id from library_element WHERE folder_id=? AND org_id=?", folderID, signedInUser.OrgId).Find(&elementIDs)
if err != nil {
return err
}
for _, elementID := range elementIDs {
_, err := session.Exec("DELETE FROM "+models.LibraryElementConnectionTableName+" WHERE element_id=?", elementID.ID)
if err != nil {
return err
}
}
if _, err := session.Exec("DELETE FROM library_element WHERE folder_id=? AND org_id=?", folderID, signedInUser.OrgId); err != nil {
return err
}
return nil
})
}