Merge branch '1057177_FixKeywordAttributesInUseLimitDelete' into '2020.1'

1057177 fix keyword attributes in use limit delete

See merge request xrm/basic!260

entity/KeywordAttribute_entity/KeywordAttribute_entity.aod

@@ -4,6 +4,7 @@
   <majorModelMode>DISTRIBUTED</majorModelMode>
   <documentation>%aditoprj%/entity/KeywordAttribute_entity/documentation.adoc</documentation>
   <title>Keyword Attribute</title>
+  <grantDeleteProcess>%aditoprj%/entity/KeywordAttribute_entity/grantDeleteProcess.js</grantDeleteProcess>
   <contentTitleProcess>%aditoprj%/entity/KeywordAttribute_entity/contentTitleProcess.js</contentTitleProcess>
   <iconId>VAADIN:KEY_O</iconId>
   <iconIdProcess>%aditoprj%/entity/KeywordAttribute_entity/iconIdProcess.js</iconIdProcess>

entity/KeywordAttribute_entity/grantDeleteProcess.js

+import("system.result");
+import("Attribute_lib");
+import("system.vars");
+import("Sql_lib");
+import("Entity_lib");
+
+var id = vars.get("$field.AB_KEYWORD_ATTRIBUTEID");
+
+var countSql = newSelect("count(*)")
+                            .from("AB_KEYWORD_ATTRIBUTERELATION")
+                            .where("AB_KEYWORD_ATTRIBUTERELATION.AB_KEYWORD_ATTRIBUTE_ID", id)
+
+var canDelete = new HasLinkedObjectTester()
+    .andSqlYieldsZero(countSql)
+    .andNoEntityRows("KeywordAttributeRelation_entity", "AttributesForKeywordEntry", {KeywordEntryId_param: id})
+    .validate();
+    
+result.string(canDelete);