hasTasks in stateProcess for Tasks

entity/Offer_entity/Offer_entity.aod

@@ -597,6 +597,7 @@
       <name>Tasks</name>
       <title>Tasks</title>
       <fieldType>DEPENDENCY_OUT</fieldType>
+      <stateProcess>%aditoprj%/entity/Offer_entity/entityfields/tasks/stateProcess.js</stateProcess>
       <dependency>
         <name>dependency</name>
         <entityName>Task_entity</entityName>

entity/Offer_entity/entityfields/tasks/stateProcess.js

+import("system.result");
+import("system.neon");
+import("system.vars");
+import("ActivityTask_lib");
+import("Context_lib");
+
+if(TaskUtils.hasTasks(vars.get("$field.OFFERID"), ContextUtils.getCurrentContextId()))
+    result.string(neon.COMPONENTSTATE_EDITABLE);
+else
+    result.string(neon.COMPONENTSTATE_INVISIBLE);
\ No newline at end of file

entity/Organisation_entity/Organisation_entity.aod

@@ -550,6 +550,7 @@
       <name>Tasks</name>
       <title>Tasks</title>
       <fieldType>DEPENDENCY_OUT</fieldType>
+      <stateProcess>%aditoprj%/entity/Organisation_entity/entityfields/tasks/stateProcess.js</stateProcess>
       <dependency>
         <name>dependency</name>
         <entityName>Task_entity</entityName>

entity/Organisation_entity/entityfields/tasks/stateProcess.js

+import("system.result");
+import("system.neon");
+import("system.vars");
+import("ActivityTask_lib");
+import("Context_lib");
+
+if(TaskUtils.hasTasks(vars.get("$field.ORGANISATIONID"), ContextUtils.getCurrentContextId()))
+    result.string(neon.COMPONENTSTATE_EDITABLE);
+else
+    result.string(neon.COMPONENTSTATE_INVISIBLE);
\ No newline at end of file

entity/Person_entity/Person_entity.aod

@@ -622,6 +622,7 @@ Usually this is used for filtering COMMUNICATION-entries by a specified contact
       <name>Tasks</name>
       <title>Tasks</title>
       <fieldType>DEPENDENCY_OUT</fieldType>
+      <stateProcess>%aditoprj%/entity/Person_entity/entityfields/tasks/stateProcess.js</stateProcess>
       <dependency>
         <name>dependency</name>
         <entityName>Task_entity</entityName>

entity/Person_entity/entityfields/tasks/stateProcess.js

+import("system.result");
+import("system.neon");
+import("system.vars");
+import("ActivityTask_lib");
+import("Context_lib");
+
+if(TaskUtils.hasTasks(vars.get("$field.CONTACTID"), ContextUtils.getCurrentContextId()))
+    result.string(neon.COMPONENTSTATE_EDITABLE);
+else
+    result.string(neon.COMPONENTSTATE_INVISIBLE);
\ No newline at end of file

entity/Product_entity/Product_entity.aod

@@ -395,6 +395,7 @@
       <name>Tasks</name>
       <title>Tasks</title>
       <fieldType>DEPENDENCY_OUT</fieldType>
+      <stateProcess>%aditoprj%/entity/Product_entity/entityfields/tasks/stateProcess.js</stateProcess>
       <dependency>
         <name>dependency</name>
         <entityName>Task_entity</entityName>

entity/Product_entity/entityfields/tasks/stateProcess.js

+import("system.result");
+import("system.neon");
+import("system.vars");
+import("ActivityTask_lib");
+import("Context_lib");
+
+if(TaskUtils.hasTasks(vars.get("$field.PRODUCTID"), ContextUtils.getCurrentContextId()))
+    result.string(neon.COMPONENTSTATE_EDITABLE);
+else
+    result.string(neon.COMPONENTSTATE_INVISIBLE);
\ No newline at end of file

entity/Salesproject_entity/Salesproject_entity.aod

@@ -496,6 +496,7 @@
       <name>Tasks</name>
       <title>Tasks</title>
       <fieldType>DEPENDENCY_OUT</fieldType>
+      <stateProcess>%aditoprj%/entity/Salesproject_entity/entityfields/tasks/stateProcess.js</stateProcess>
       <dependency>
         <name>dependency</name>
         <entityName>Task_entity</entityName>

entity/Salesproject_entity/entityfields/tasks/stateProcess.js

+import("system.result");
+import("system.neon");
+import("system.vars");
+import("ActivityTask_lib");
+import("Context_lib");
+
+if(TaskUtils.hasTasks(vars.get("$field.SALESPROJECTID"), ContextUtils.getCurrentContextId()))
+    result.string(neon.COMPONENTSTATE_EDITABLE);
+else
+    result.string(neon.COMPONENTSTATE_INVISIBLE);
\ No newline at end of file

process/ActivityTask_lib/process.js

+import("system.logging");
 import("system.vars");
 import("system.util");
 import("system.datetime");
@@ -82,6 +83,25 @@ TaskUtils.createNewTask = function(pRowId, pAdditionalLinks, pParentContext, pPa
     _ActivityTaskUtils._createNew("Task", pRowId, pAdditionalLinks, pParentContext, pParentId)
 }
 
+/**
+ * Create a new task
+ */
+TaskUtils.hasTasks = function(pRowId, pObjectType)
+{
+    if (pRowId != "" && pObjectType != "")
+    {
+        var cond = SqlCondition.begin().andPrepare("TASKLINK.OBJECT_TYPE", pObjectType)
+                                       .andPrepare("TASKLINK.OBJECT_ROWID", pRowId);
+        var taskCount = db.cell(cond.buildSql("select count(*) from TASKLINK"));
+        if (taskCount != "0")
+            return true;
+        else 
+            return false;
+    }
+    else
+        return true;
+}
+
 /**
  * add the links to the link-table in new mode
  *