[v9.4.x] Expressions: Fixes the issue showing expressions editor (#62622)

Expressions: Fixes the issue showing expressions editor (#62510)

* Use suggested value for uid

* update the snapshot

* use __expr__

* replace all -100 with __expr__

* update snapshot

* more changes

* revert redundant change

* Use expr.DatasourceUID where it's possible

* generate files

(cherry picked from commit 91221bc436)

Co-authored-by: ismail simsek <ismailsimsek09@gmail.com>

pkg/services/provisioning/alerting/testdata/common/broken-yaml/rules.yml

@@ -30,7 +30,7 @@ apiVersion: 1
         relativeTimeRange:
           from: 0
           to: 0
-        datasourceUID: "-100"
+        datasourceUid: "__expr__"
         model:
           conditions:
           - evaluator:
@@ -48,7 +48,7 @@ apiVersion: 1
             type: query
           datasource:
             type: __expr__
-            uid: "-100"
+            uid: "__expr__"
           hide: false
           intervalMs: 1000
           maxDataPoints: 43200

pkg/services/provisioning/alerting/testdata/common/supported-filetypes/rules.json

@@ -41,7 +41,7 @@
                   "from": 0,
                   "to": 0
                 },
-                "datasourceUID": "-100",
+                "datasourceUid": "__expr__",
                 "model": {
                   "conditions": [
                     {
@@ -61,7 +61,7 @@
                       },
                       "reducer": {
                         "params": [
-  
+
                         ],
                         "type": "last"
                       },
@@ -70,7 +70,7 @@
                   ],
                   "datasource": {
                     "type": "__expr__",
-                    "uid": "-100"
+                    "uid": "__expr__"
                   },
                   "hide": false,
                   "intervalMs": 1000,
@@ -84,4 +84,4 @@
         ]
       }
     ]
-  }
+  }

pkg/services/provisioning/alerting/testdata/common/supported-filetypes/rules.yaml

@@ -30,7 +30,7 @@ groups:
         relativeTimeRange:
           from: 0
           to: 0
-        datasourceUID: "-100"
+        datasourceUid: "__expr__"
         model:
           conditions:
           - evaluator:
@@ -48,7 +48,7 @@ groups:
             type: query
           datasource:
             type: __expr__
-            uid: "-100"
+            uid: "__expr__"
           hide: false
           intervalMs: 1000
           maxDataPoints: 43200

pkg/services/provisioning/alerting/testdata/common/supported-filetypes/rules.yml

@@ -30,7 +30,7 @@ groups:
         relativeTimeRange:
           from: 0
           to: 0
-        datasourceUID: "-100"
+        datasourceUid: "__expr__"
         model:
           conditions:
           - evaluator:
@@ -48,7 +48,7 @@ groups:
             type: query
           datasource:
             type: __expr__
-            uid: "-100"
+            uid: "__expr__"
           hide: false
           intervalMs: 1000
           maxDataPoints: 43200