Correlations: Add organization id (#72258)

* Add org_id to correlations

* Add tests

* Allow org_id to be null in case org_id=0 is used

* Create organization to ensure stable id is generated

* Fix linting

* Ensure backwards compatibility

* Add deprecation information

* Migrate correlations indices

* Default org_id when migrating

* Remove redundant default

* Make PK non-nullable

pkg/services/correlations/models.go

@@ -109,6 +109,9 @@ type Correlation struct {
 	// UID of the data source the correlation originates from
 	// example: d0oxYRg4z
 	SourceUID string `json:"sourceUID" xorm:"pk 'source_uid'"`
+	// OrgID of the data source the correlation originates from
+	// Example: 1
+	OrgID int64 `json:"orgId" xorm:"pk 'org_id'"`
 	// UID of the data source the correlation points to
 	// example: PE1C5CBDA0504A6A3
 	TargetUID *string `json:"targetUID" xorm:"target_uid"`
@@ -286,8 +289,10 @@ type GetCorrelationsQuery struct {
 
 type DeleteCorrelationsBySourceUIDCommand struct {
 	SourceUID string
+	OrgId     int64
 }
 
 type DeleteCorrelationsByTargetUIDCommand struct {
 	TargetUID string
+	OrgId     int64
 }