Quartz Composer - Structure Key Member bug?

StackOverflow https://stackoverflow.com/questions/1717158

  •  19-09-2019
  •  | 
  •  

Question

I'm trying to use Quartz Composer to create a continuous integration build radiator.

I put together a simple XML file to describe the projects and the latest success of each of their workflows:

<projects>
  <project>
    <title>Project A</title>
    <workflows>
      <workflow>
        <title>Build 1.0</title>
        <status>success</status>
      </workflow>
      <workflow>
        <title>Build 2.0</title>
        <status>success</status>
      </workflow>
    </workflows>
  </project>
  <project>
    <title>Project B</title>
    <workflows>
      <workflow>
        <title>Build 1.0</title>
        <status>success</status>
      </workflow>
    </workflows>
  </project>
</projects>

This will obviously have more information but I'm just trying to get the basics working for now. I set up a composition and am using XML Downloader to load the above XML file from the filesystem.

The problem I'm having is thus: when I use the Structure Key Member patch on an element with multiple children, I get back multiple children BUT when I use Structure Key Member on an element with just one child I get back the single child instead of a collection of 1 item.

I've illustrated the problem below in an example composition:

Quartz Composition

Am I doing something wrong? Is this expected behavior? Why isn't the lower chain not also returning a QCStructure?

Was it helpful?

Solution

Unfortunately, the XML Downloader patch doesn't properly handle multiple adjacent empty elements.

One possible workaround might be to restructure your XML to remove the "projects" group, and just make "project" a property of each "workflow":

<workflows>
  <workflow project="Project A">
    <title>Build 1.0</title>
    <status>success</status>
  </workflow>
  <workflow project="Project A">
    <title>Build 2.0</title>
    <status>success</status>
  </workflow>
  <workflow project="Project B">
    <title>Build 1.0</title>
    <status>success</status>
  </workflow>
</workflows>

This produces a structure with usable results.

(When XML Downloader builds a structure from XML, attributes are equivalent to child tags, so "project" could be either and you'd get the same result.)

Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow
scroll top