Hello Camunda world
i’m new in camunda and i want to create a calculator that add or multiply 2 numbers depends on user choice
i have to use a form to fill the v1 and v2 and operator [sum / multiply],without using any external code!
i’ve done something like this but it not working
Screen Shot 2020-07-12 at 13.32.26|690x367
@hanane92, instead of image, you can upload the bpmn file itself. It’s hard to debug the issue with image file. You can find the upload options in the editor.
@hanane92, the expression was not provided properly. Refer the docs for Usage of Expression Language.
<bpmn:userTask id="id1" name="choose valueA and valueB and operation" camunda:assignee="fillform">
<bpmn:extensionElements>
<camunda:formData>
<camunda:formField id="valueA" label="ValueA" type="long" />
<camunda:formField id="valueB" label="ValueB" type="long" />
<camunda:formField id="operation" label="Operation" type="string">
<camunda:properties>
<camunda:property id="sum" value="+" />
<camunda:property id="multiply" value="*" />
</camunda:properties>
</camunda:formField>
</camunda:formData>
</bpmn:extensionElements>
<bpmn:incoming>SequenceFlow1</bpmn:incoming>
<bpmn:outgoing>Flow_0v420pn</bpmn:outgoing>
</bpmn:userTask>
Sequence flow which has condition should be expressed as:
#{operation == '*'}
#{operation == '+'}
Expression configured in both service task is also completely wrong one.
It should be like:
${valueA + valueB} //sum service task expression
${valueA * valueB} //multiply service task expression
Configured camunda:asyncBefore="true" for the gateway to save the form variables.
<bpmn:exclusiveGateway id="Gateway_0t4lq9b" name="Operation?" camunda:asyncBefore="true">
<bpmn:incoming>Flow_0v420pn</bpmn:incoming>
<bpmn:outgoing>sumid</bpmn:outgoing>
<bpmn:outgoing>multiplyid</bpmn:outgoing>
</bpmn:exclusiveGateway>
I have modified your bpmn file. Deploy the below bpmn file and try:
Deploy this: process2 (1).bpmn (7.8 KB)
How should I do if I want to work on 3 or more numbers?
