I have the FreeMarker template, which is the custom field for display some data about the business process.
Let's say, userdetails.ftl:
<@link href="${url.context}/res/components/workflow/workflow-form.css" group="workflow"/>
<#include "/org/alfresco/components/form/controls/common/utils.inc.ftl" />
<div class="form-field">
<div id="...">
<table id="..." class="yui-dt">
<tr>
<th class="yui-dt-liner">Field_1</th>
<th class="yui-dt-liner">Field_2</th>
<th class="yui-dt-liner">Field_3</th>
<th class="yui-dt-liner">Field_4</th>
...
<th class="yui-dt-liner">Field_N</th>
</tr>
...
</table>
</div>
</div>
<script>
// Here I want to call REST back-end and parse the JSON response
</script>
Relevant part of the share-config-custom.xml:
<config evaluator="task-type" condition="mswf:reviewTask">
<forms>
<form>
<field-visibility>
<show id="mswf:userDetails" />
</field-visibility>
<appearance>
<set id="userDetails" appearance="title" label="User Details" />
<field id="mswf:userDetails" set="userDetails" label="User Details">
<control template="/org/alfresco/components/form/controls/workflow/userdetails.ftl" />
</field>
<field id="transitions" set="response" />
</appearance>
</form>
</forms>
</config>
This template contains a table in which I would like to display the list of users who will participate in the business process (who was assigned).
Inside tags <script></script> I want to invoke an embedded Alfresco WebScript (or my own - it's not important in this case) which returns me all the necessary information about the business process:
http://localhost:8080/alfresco/api/-default-/public/workflow/versions/1/processes/26205/variables
,where 26205 == id of the process instance.
I get the following:
{
"list":{
"pagination":{
"count":36,
"hasMoreItems":false,
"totalItems":36,
"skipCount":0,
"maxItems":100
},
"entries":[
{
"entry":{
"name":"bpm_packageActionGroup",
"type":"d:text"
}
},
{
"entry":{
"name":"mswf_approveCount",
"type":"d:double",
"value":0.0
}
},
{
"entry":{
"name":"bpm_reassignable",
"type":"d:boolean",
"value":true
}
},
{
"entry":{
"name":"bpm_priority",
"type":"d:int",
"value":2
}
},
{
"entry":{
"name":"initiator",
"type":"d:noderef",
"value":"admin"
}
},
{
"entry":{
"name":"mswf_actualRejectPercent",
"type":"d:double",
"value":0.0
}
},
{
"entry":{
"name":"bpm_percentComplete",
"type":"d:int",
"value":0
}
},
{
"entry":{
"name":"bpm_sendEMailNotifications",
"type":"d:boolean",
"value":false
}
},
{
"entry":{
"name":"mswf_reviewOutcome",
"type":"d:text",
"value":"Reject"
}
},
{
"entry":{
"name":"bpm_workflowPriority",
"type":"d:int",
"value":1
}
},
{
"entry":{
"name":"bpm_hiddenTransitions",
"type":"d:text"
}
},
{
"entry":{
"name":"workflowinstanceid",
"type":"d:text",
"value":"activiti$26205"
}
},
{
"entry":{
"name":"taskFormKey",
"type":"d:text",
"value":"mswf:activitiReviewTask"
}
},
{
"entry":{
"name":"bpm_workflowDueDate",
"type":"d:date",
"value":"2017-03-12T20:00:00.000+0000"
}
},
{
"entry":{
"name":"mswf_requiredPercent",
"type":"d:double",
"value":100.0
}
},
{
"entry":{
"name":"mswf_reviewerCount",
"type":"d:double",
"value":2.0
}
},
{
"entry":{
"name":"bpm_package",
"type":"bpm:workflowPackage",
"value":"workspace://SpacesStore/72086323-6c65-46f9-a1ad-8877630a6b40"
}
},
{
"entry":{
"name":"mswf_actualPercent",
"type":"d:double",
"value":0.0
}
},
{
"entry":{
"name":"nrOfActiveInstances",
"type":"d:int",
"value":2
}
},
{
"entry":{
"name":"bpm_workflowDescription",
"type":"d:text",
"value":"message..."
}
},
{
"entry":{
"name":"mswf_rejectCount",
"type":"d:double",
"value":0.0
}
},
{
"entry":{
"name":"bpm_packageItemActionGroup",
"type":"d:text",
"value":"edit_package_item_actions"
}
},
{
"entry":{
"name":"companyhome",
"type":"d:noderef",
"value":"workspace://SpacesStore/64f9f3c3-9227-425d-b336-bd255ab94c83"
}
},
{
"entry":{
"name":"_startTaskCompleted",
"type":"d:datetime",
"value":"2017-03-13T07:03:12.612+0000"
}
},
{
"entry":{
"name":"bpm_assignees",
"type":"cm:person",
"value":[
"first",
"second"
]
}
},
{
"entry":{
"name":"loopCounter",
"type":"d:int",
"value":1
}
},
{
"entry":{
"name":"bpm_description",
"type":"d:text",
"value":"message... "
}
},
{
"entry":{
"name":"nrOfInstances",
"type":"d:int",
"value":2
}
},
{
"entry":{
"name":"initiatorhome",
"type":"d:noderef",
"value":"workspace://SpacesStore/64f9f3c3-9227-425d-b336-bd255ab94c83"
}
},
{
"entry":{
"name":"bpm_outcomePropertyName",
"type":"d:qname",
"value":"mswf:reviewOutcome"
}
},
{
"entry":{
"name":"cm_name",
"type":"d:text",
"value":"Task"
}
},
{
"entry":{
"name":"bpm_status",
"type":"d:text",
"value":"Not Yet Started"
}
},
{
"entry":{
"name":"cancelled",
"type":"d:boolean",
"value":false
}
},
{
"entry":{
"name":"reviewAssignee",
"type":"d:noderef",
"value":"second"
}
},
{
"entry":{
"name":"mswf_requiredApprovePercent",
"type":"d:int",
"value":100
}
},
{
"entry":{
"name":"nrOfCompletedInstances",
"type":"d:int",
"value":0
}
}
]
}
}
In addition to everything else I'm interested in this part:
"entry":{
"name":"bpm_assignees",
"type":"cm:person",
"value":[
"first",
"second"
]
}
Here is the list of the users who will participate in the business process (in this specific instance).
To get all this information, I need to know the ID of the process instance (26205 in this case).
Can I determine this identifier in my userdetails.ftl template?
The workflow ID is indeed one of the variables available in your workflow, I suggest you add it to your form using the hidden form-control hidden.ftl and then, from you JS snippet, use dom to access that hidden input by ID/name and use it in your logic as you see fit !