View source for Template:BrowseByAskQueryPreviousNext

<onlyinclude><!--
  set the property page name, as it is necessary for querying before (<) and after (>) the current page
-->{{#vardefine: propertyPageName|terms-internal:pagename}}<!--
-->[[{{#var: propertyPageName}}::{{PAGENAME}}| ]]<!--

-->{{
#if: {{{1|{{{query|}}}}}}<!--
 test parameter
THEN -->|<!--

  SAVE THE QUERY FOR BEFORE PAGE(S) AND AFTER PAGE(S)
  save:
    before [[Category:Literature]] [[PagenameProperty::<{{PAGENAME}}]] and
    after  [[Category:Literature]] [[PagenameProperty::>{{PAGENAME}}]]
-->{{#vardefine: querybefore|<!--
  -->{{{1|{{{query|}}}}}} [[{{#var: propertyPageName}}::<{{{compare with|{{PAGENAME}} }}}]]<!--
-->}}<!--
-->{{#vardefine: queryafter|<!--
  -->{{{1|{{{query|}}}}}} [[{{#var: propertyPageName}}::>{{{compare with|{{PAGENAME}} }}}]]<!--
-->}}<!--

  separate handling for images: "show = 20.images" shall display 20 images; default "show = images" is 10
  save:
    pagesafter/pagesbefore (images), 
    pageafter/pagebefore (text, default, navigation long)
-->{{#switch: {{#explode: {{{show|}}} |.|-1}}<!--
  -->| images = <!--
      ## save number of images ("show = 20.images")
      -->{{#vardefine: numberOfImages<!--
        -->|{{#ifeq: {{#explode: {{{show}}} |.|0}} | images<!--
          than -->|5<!--
          else -->|{{#expr: {{#explode: {{{show}}} |.|0}} / 2 round 0}} }}<!--
      -->}}<!--

      ## save multiple pages before
      -->{{#vardefine: pagesbefore|<!--
        -->{{#ifexpr: {{#ask: {{#var: querybefore}} |format = count }} < 2<!--
          then -->|<!--
            situation {{PAGENAME}} is the very first page: get the last one
          -->{{#ask: {{#var: queryafter}}  |order=desc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}} }}<!--
          else -->|<!--
            situation in between
          -->{{#ask: {{#var: querybefore}} |order=desc | searchlabel=|link=none<!--
            -->|limit={{#var: numberOfImages}}<!-- default 5+5 images
            -->|sort={{#var: propertyPageName}}<!--
            -->|offset=1}}<!--
        -->}}<!--
      -->}}<!--

      ## save multiple pages after
      -->{{#vardefine: pagesafter|<!--
        -->{{#ifexpr: {{#ask: {{#var: queryafter}} |format = count }} < 2<!--
          then -->|<!--
            situation {{PAGENAME}} is the very last page: get the first one
          -->{{#ask: {{#var: querybefore}} |order=asc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}} }}<!--
          else -->|<!--
            situation in between
          -->{{#ask: {{#var: queryafter}} |order=asc | searchlabel=|link=none<!--
          -->|limit={{#var: numberOfImages}}<!-- default 5+5 images
          -->|sort={{#var: propertyPageName}}<!--
          -->|offset=1}}<!--
        -->}}<!--
      -->}}<!--
  -->| #default = <!--
      ## save one page-before
      -->{{#vardefine: pagebefore|<!--
          pagebefore: if less than 2 pages are found
        -->{{#ifexpr: {{#ask: {{#var: querybefore}} |format = count }} < 2<!--
          then -->|<!--
            situation {{PAGENAME}} is the very first page: get the last one
          -->{{#ask: {{#var: queryafter}} |order=desc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}} }}<!--
          else -->|<!--
            situation in between
          -->{{#ask: {{#var: querybefore}} |order=desc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}}<!--
          -->|offset=1 }}<!--
        -->}}<!--
      -->}}<!--
      ## save page name without name space
      -->{{#vardefine: pagebeforeNoNs|{{#switch:  {{#explode: {{#var: pagebefore}}|:|0}}<!--
          -->| Datei | File = {{#sub: {{#var: pagebefore}}| {{#expr: {{#pos: {{#var: pagebefore}}|:}} + 1}} }}<!--
          -->| #default = {{#var: pagebefore}}<!--
        -->}}<!-- 
      -->}}<!--
        add ':' if necessary for links
      -->{{#switch:  {{#explode: {{#var: pagebefore}}|:|0}}<!--
      -->| Datei | File = {{#vardefine: pagebefore | :{{#var: pagebefore}} }}<!--
      -->| #default = <!--
      -->}}<!-- switch end

      ## save one page-after
      -->{{#vardefine: pageafter|<!--
        -->{{#ifexpr: {{#ask: {{#var: queryafter}} |format = count }} < 2<!--
          then -->|<!--
            situation {{PAGENAME}} is the very last page: get the first one
          -->{{#ask: {{#var: querybefore}} |order=asc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}} }}<!--
          else -->|<!--
            situation in between
          -->{{#ask: {{#var: queryafter}} |order=asc | searchlabel=|link=none|limit=1|sort={{#var: propertyPageName}}<!--
          -->|offset=1 }}<!--
        -->}}<!--
      -->}}<!--
      ## save page name without name space
      -->{{#vardefine: pageafterNoNs|{{#switch:  {{#explode: {{#var: pageafter}}|:|0}}<!--
          -->| Datei | File = {{#sub: {{#var: pageafter}}| {{#expr: {{#pos: {{#var: pageafter}}|:}} + 1}} }}<!--
          -->| #default = {{#var: pageafter}}<!--
        -->}}<!-- 
      -->}}<!--
        add ':' if necessary for links
      -->{{#switch:  {{#explode: {{#var: pageafter}}|:|0}}<!--
      -->| Datei | File = {{#vardefine: pageafter | :{{#var: pageafter}} }}<!--
      -->| #default = <!--
      -->}}<!-- switch end
-->}}<!-- end switch save:
              pagesafter/pagesbefore (images), 
              pageafter/pagebefore (text, default, navigation long)

  ## show cases output/HTML ## 
-->{{#switch: {{#explode: {{{show|}}} |.|-1}}<!-- (e.g. "show = 20.images") -->
| images = <!-- images
  --><div style='border:2px inset gray;width:99%;'  class="noprint"><!-- 
   --><table id=toc style="width: 100%;background-color:white;"><tr><!-- 
    --><td style="text-align: left; width: 9em;">[[:{{#explode: {{#var: pagesbefore}}|,|-1}} |&larr; {{Multilingual switch| de = rückwärts | en = backward}}]]</td><!-- 
    --><td style="text-align: center; width: auto;"><!-- 
      -->{{Multilingual switch<!-- 
        -->|de=Bilder in alphabetischer Reihenfolge vor und nach „{{{compare with|{{PAGENAME}} }}}“<!-- 
        -->|en=Browse images in alphabetical order before and after “{{{compare with|{{PAGENAME}} }}}”}}</td><!-- 
    --><td style="text-align: right; width: 9em;">[[:{{#explode: {{#var: pagesafter}}|,|-1}}|{{Multilingual switch| de = vorwärts | en = forward}} &rarr;]]</td><!-- 
   --></tr></table><!-- 
   --><div style='overflow-x:auto;height:210px;background-color:black;'><!--
   --><table style='background-color:black;'><!-- 
   --><!-- 
   --><tr><!--
       pages before: is page10, page9, page8 ...
    -->{{#vardefine: temp|}}<!--
        compose a ascending order of page10, page9, page8 by saving a page temporarily
     -->{{#arraymap: {{#var: pagesbefore}}
        |,|§
        |{{#vardefine: temp| <td style="width:120px;vertical align:center;"><!--
        -->[[<!-- File -->§|<!-- caption -->{{#explode: §|{{ns:file}}:|1}} <!-- edit icon -->[[File:Farm-Fresh_application_form_edit.png|15px|right|link={{fullurl:§|action=formedit}}|{{Multilingual switch| de = Diese Datei mittels Formular bearbeiten| en = Edit this file with the form}}]]|thumb|middle|center|120x120px]]</td> {{#var: temp}} }}
        |
        }}<!--
    -->{{#var: temp}}<!--
    
      current page itself
      --><td style="width:120px;vertical align:center;background-color:gray;border:1px #774422 solid;"><!--
        -->[[{{{compare with|{{FULLPAGENAME}}}}}|<!--
        add 'File:' if necessary
      -->{{#switch:  {{#explode: {{{compare with|{{PAGENAME}}}}}|:|0}}<!--
      -->| Datei | File = File:{{{compare with|{{PAGENAME}}}}}<!--
      -->| #default = {{{compare with|{{PAGENAME}}}}}<!--
      -->}} <!-- edit icon -->[[File:Farm-Fresh_application_form_edit.png|15px|right|link={{fullurl:§|action=formedit}}|{{Multilingual switch| de = Diese Datei mittels Formular bearbeiten| en = Edit this file with the form}}]]|thumb|middle|center|120x120px]]</td><!--
        
      pages after
    -->{{#arraymap: {{#var: pagesafter}}<!--
     -->|,|§|<td style="width:120px;vertical align:center;"><!--
        -->[[<!-- File -->§|<!-- caption -->{{#explode: §|{{ns:file}}:|1}} <!-- edit icon -->[[File:Farm-Fresh_application_form_edit.png|15px|right|link={{fullurl:§|action=formedit}}|{{Multilingual switch| de = Diese Datei mittels Formular bearbeiten| en = Edit this file with the form}}]]|thumb|middle|center|120x120px]]</td>|<!--
    -->}}<!--
  --></tr></table><!--
  --></div><!--
  --></div>

| text = «&nbsp;[[{{#var: pagebefore}}|{{#var: pagebeforeNoNs}}]]&nbsp;&#124;&nbsp;[[{{#var: pageafter}}|{{#var: pageafterNoNs}}]]&nbsp;»
| navigation long = {{Navigation
    | backlink = {{#ifeq: {{#var: pagebefore}}|{{PAGENAME}}|<!-- nothing -->|{{#ifeq: {{#var: pagebefore}}|{{#var: pageafter}}|<!-- nothing -->|{{#var: pagebefore}} }} }}
    | backtext = <!-- 
    -->{{#ifeq: {{#var: pagebeforeNoNs}} | {{PAGENAME}}<!-- 
    then-->|<!-- nothing 
    else-->|{{#ifeq: {{#var: pagebeforeNoNs}} | {{#var: pageafterNoNs}}<!-- 
      then-->|<!-- nothing 
      else-->|{{#var: pagebeforeNoNs}} 
            }} 
       }}
    | uplink   = {{{link up|}}}
    | uptext   = {{{link up text|}}}
    | forwardlink    = {{#ifeq: {{#var: pagebefore}}|{{PAGENAME}}|<!-- nothing -->|{{#var: pageafter}} }}
    | forwardtext    = <!-- 
      -->{{#ifeq: {{#var: pageafterNoNs}} | {{PAGENAME}}<!-- 
          then-->|<!-- nothing 
          else-->|{{#var: pageafterNoNs}}<!--
      -->}}
  }}
| #default =<!--
  --><span style="white-space:nowrap"><!--
    -->[[File:Go-previous.svg|24px|link=<!-- 
        avoid ":File:example.jpg" → "File:example.jpg"
      -->{{#if: {{#explode: {{#var: pagebefore}}|:|0}}<!-- 
      then-->|{{#var: pagebefore}} <!-- 
      else-->|{{#sub: {{#var: pagebefore}} | 1 }} }}]]<!--
  -->&#124;[[File:Go-next.svg|24px|link=<!-- 
        avoid ":File:example.jpg" → "File:example.jpg"
      -->{{#if: {{#explode: {{#var: pageafter}}|:|0}}<!-- 
      then-->|{{#var: pageafter}} <!-- 
      else-->|{{#sub: {{#var: pageafter}} | 1 }} }}]]<!--
  --></span>
  }}<!--

ELSE -->|{{TemplateError | text = <!--
    (3) Beispiele einfügen -->
This template creates an automatic navigation to browse within a category or a semantic query. By default small left-right arrows are shown, but the layout can be easiliy changed using the template parameter “<code>show=…</code>”: just linktext by <code>show=text</code>, a long navigation by <code>show=navigation long</code> and images  by <code>show=images</code>. If the current page is not a member of a category, a page for comparison can be defined by <code>compare with = wikipage</code>.

(1) Default: two arrows<br/> [[File:Go-previous.svg|24px|link=File:Dryades 7meno.jpg]]&#124;[[File:Go-next.svg|24px|link=File:Dryades 7opiu.jpg]]<!--
    -->{{Hidden
       | contentstyle= border-top:1px dotted;padding:0.25em;
       | 1= {{Logo | Tip | 15px}} Examples:  <code><nowiki>{{BrowseByAskQueryPreviousNext | [[Category:Media provided by Dryades]]}}</nowiki></code>
       | 2=
<source lang="html4strict">
{{BrowseByAskQueryPreviousNext | [[Category:Media provided by Dryades]]}}
<!-- "1 =" or "query =" -->
{{BrowseByAskQueryPreviousNext | 1 = [[Category:Media provided by Dryades]]}}
{{BrowseByAskQueryPreviousNext | query = [[Category:Media provided by Dryades]]}}
<!-- "compare with =" if another page for comparison is required -->
{{BrowseByAskQueryPreviousNext | query = [[Category:Media provided by Dryades]] | compare with = File:Dryades 7opiu.jpg}}
</source><!--
    -->}}<!-- Hidden::end -->


(2)  Using&nbsp;<code>show=text</code> results in:<br />
«&nbsp;[[Help:Contents]]&nbsp;&#124;&nbsp;[[Help:Sandbox]]&nbsp;»
<div style="border:1px dotted black;padding:0.25em;"><code><nowiki>{{BrowseByAskQueryPreviousNext | [[Category:Help]] | show = text}}</nowiki></code></div>


(3) With <code>show=navigation long</code> a broad navigation using [[template: navigation]] is created:
{{BrowseByAskQueryPreviousNext
  | query =  [[Category:Acer]]
  | show = navigation long
  | link up = :Category:Acer
  | link up text = ''Acer'' sp.
}}
{{Hidden
       | contentstyle= border-top:1px dotted;padding:0.25em;
       | 1= {{Logo | Tip | 15px}} Example: <code>show = navigation long</code>
       | 2=
<source lang="html4strict">
{{BrowseByAskQueryPreviousNext
  | query =  [[Category:Acer]]
  | show = navigation long
  | link up = :Category:Acer
  | link up text = ''Acer'' sp.
}}
</source><!--
    -->}}


(4) With&nbsp;<code>show=images</code> you can get a single line image gallery (10 images = default). <code>show=50.images</code> will increase the shown images to 50.
{{BrowseByAskQueryPreviousNext| query = [[Category:Dryades Plant Images]] | compare with = File:Dryades TSB50200.jpg| show =images}}
{{Hidden
       | style       = border:1px dotted black;padding:0.25em;
       | toggle      = left
       | contentstyle= border-top:1px dotted;padding:0.25em;
       | 1= {{Logo | Tip | 15px}} Example: <code>show = images</code>, <code>show = 100.images</code> 
       | 2=
<source lang="html4strict">
{{BrowseByAskQueryPreviousNext
| query = [[Category:Dryades Plant Images]] 
| show = images
}}
{{BrowseByAskQueryPreviousNext
| query = [[Category:Dryades Plant Images]] 
| show = 100.images<!-- show 100 images -->
}}
</source><!--
-->}}<!--
    
 -->}}<!-- TemplateError End -->
}}<!-- if: end template parameter  --></onlyinclude><!--
 --><noinclude><!--
 
 Documentation
-->

== Technical documentation ==
This template sets a [[property: {{#var: propertyPageName}}]], because it is necessary to ask for the page before and after the current one.

=== Dependencies on templates ===
* [[template: Hidden]] (documentation)
* [[template: Logo]] (documentation)
* [[template: Ombox]] (template code/template self documentation)
* [[template: TemplateError]] (template code/template self documentation)
* [[template: Multilingual switch]] (template code)
* [[template: Navigation]] (template code)

[[Category:Programming of Templates]]
[[Category:Templates]]
[[Category:Navigation]]
[[Category:Semantic Mediawiki]]
{{DEFAULTSORT: BrowseByAskQueryPreviousNext}}