Sampling citation not showing up in view service

[amoeba]

@isteves noticed this over in NCEAS/metacatui#485 that the sampling citation isn't showing up for this document:

https://arcticdata.io/catalog/#view/doi:10.18739/A2C857

as shown by this:

I'm not sure why this is, though I did look at the eml2- XSLs and it looks like this should work. There's a citation template in eml-literature.xsl but I haven't looked into why this information isn't showing up.

[artntek]

This is the response snippet received by metacatui from metacat:

    <div class="control-group">
        <label class="control-label">Sampling Citation</label>
        <div class="controls">
            <cite xmlns="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                  xmlns:dcx="http://ns.dataone.org/metadata/schema/onedcx/v1.0" 
                  xmlns:dct="http://purl.org/dc/terms/" class="citation" />
        </div>
    </div>
    <div class="control-group">
        <label class="control-label">Sampling Citation</label>
        <div class="controls">
            <cite xmlns="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
                  xmlns:dcx="http://ns.dataone.org/metadata/schema/onedcx/v1.0" 
                  xmlns:dct="http://purl.org/dc/terms/" class="citation" />
        </div>
    </div>

whereas the sampling section should contain 2 citations:

        <citation>
          <title>Measured basal water pressure variability of the western Greenland Ice 
                            Sheet: Implications for hydraulic potential</title>
[...content removed for clarity...]
        <citation>
          <title>Measured horizontal temperature gradients contrain heat transfer 
                           mechanisms in Greenland ice</title>
[...etc]

[artntek]

lib/style/skins/metacatui/metacatui.xsl imports two different versions of an xsl template named "citation" (in lib/style/skins/metacatui/eml-2/eml-literature.xsl and lib/style/skins/metacatui/fgdc/fgdc-root.xsl), and because the one in fgdc-root.xsl is imported last, it overwrites the one in eml-literature.xsl, which is what causes the non-displaying Sampling Citation section.

[artntek]

fixing the import ordering makes some of the Sampling Citation info show up, but not all of it. Comparing to display in Morpho, the same info is missing, so I'm wondering if it has ever shown up correctly? Will continue to investigate...

Sampling Citation info that should be listed:

• title
• creator
• pubDate
• article

Sampling Citation info that is listed after xsl:import fix (metacatui):

• article

Sampling Citation info that is listed in morpho:

• article

[artntek]

metadata is not displaying because several imports have been commented out in various xsl files. Uncommenting them leads to a circular import and a crash - which is probably why they're commented out in the first place.

root is:

lib/style/skins/metacatui/metacatui.xsl

Sampling template is in:

lib/style/skins/metacatui/eml-2/eml-method.xsl

for-each select="citation" hands off to citation template in:

lib/style/skins/metacatui/eml-2/eml-literature.xsl
...which in turn hands off to the citationCommon template in the same file

citationCommon TRIES to hand off to a resource template,

but the xsl:import in: lib/style/skins/metacatui/eml-2/eml-resource.xsl has been commented out:
<!--<xsl:import href="eml-resource.xsl"/>-->

and in eml-resource.xsl, the following imports are commented out:

<!--<xsl:import href="eml-party.xsl"/>
  <xsl:import href="eml-distribution.xsl"/>
  <xsl:import href="eml-coverage.xsl"/>-->

uncommenting them leads to an exception, because eml-coverage.xsl has a circular import back to:
<xsl:import href="eml-literature.xsl"/>

The plot thickens...

[artntek]

fixed in #1605