pagination for media files (bad, but working)

_includes/media-list.html

 {% capture nowunix %}{{'now' | date: '%s'}}{% endcapture %}
-
+{% assign min = include.page | times: 25 -%}
+{% assign max = min | plus: 25 -%}
+{% assign paginatenext = include.page | plus: 2 -%}
+{% assign currentpage = include.page | plus: 1 -%}
+{% assign paginateprev = include.page -%}
+{% assign counter = 0 -%}
+{% assign next = false -%}
+{% assign prev = false -%}
+{% if min > 0 -%}
+	{% assign prev = true -%}
+{% endif -%}
 <section class="section  typeset">
 	<ul class="list  list--posts">
-		{% assign mlist = site.media | sort: 'uuid' %}
+
+		{% assign filtered_posts = site.media | where: 'release_date', not nil %}
+		{% assign mlist = filtered_posts | sort: 'uuid' %}
 		{% assign sorted = mlist | sort: 'release_date' | reverse %}
-		{% for video in sorted %}
 
-			{% capture title -%}
-			{% assign name_before_title = false -%}	
-			{% for conf in video.conferences -%}
-				{% for c in site.conferences -%}
-					{% if conf == c.acronym and c.name_before_title -%}
-						{% assign name_before_title = true -%}	
-					{% endif -%}
+		{% for video in sorted %}
+			{% if counter >= min and counter < max -%}
+				{% capture title -%}
+				{% assign name_before_title = false -%}	
+				{% for conf in video.conferences -%}
+					{% for c in site.conferences -%}
+						{% if conf == c.acronym and c.name_before_title -%}
+							{% assign name_before_title = true -%}	
+						{% endif -%}
+					{% endfor -%}
 				{% endfor -%}
-			{% endfor -%}
-			{% if video.persons and name_before_title -%}{{video.persons | join: ", " }}: {% endif -%}{{ video.title }}
-			{% for conf in video.conferences -%}
-				{% for c in site.conferences -%}
-					{% if conf == c.acronym -%}
-						{% if c.ecki -%}[{{c.title| xml_escape}}]{% endif -%}
-					{% endif -%}
+				{% if video.persons and name_before_title -%}{{video.persons | join: ", " }}: {% endif -%}{{ video.title }}
+				{% for conf in video.conferences -%}
+					{% for c in site.conferences -%}
+						{% if conf == c.acronym -%}
+							{% if c.ecki -%}[{{c.title| xml_escape}}]{% endif -%}
+						{% endif -%}
+					{% endfor -%}
 				{% endfor -%}
-			{% endfor -%}
-			{% endcapture -%}
+				{% endcapture -%}
 
-			{% assign optout = false -%}	
-			{% if video.optout and video.optout  != '' -%}
-				{% assign optout = true -%}
-			{% endif -%}
+				{% assign optout = false -%}	
+				{% if video.optout and video.optout  != '' -%}
+					{% assign optout = true -%}
+				{% endif -%}
 
-			{% if video.release_date and video.release_date != '' %}
-				{% include media-in-list.html -%}
+				{% if video.release_date and video.release_date != '' %}
+					{% include media-in-list.html -%}
+				{% endif %}
 			{% endif %}
+			{% if video.release_date and video.release_date != '' %}
+					{% assign mediasize = mediasize | plus: 1 -%}
+					{% assign m2 = max | minus: 1 -%}
+					{% if counter >  m2 -%}
+						{% assign next = true -%}
+				{% endif -%}
+			{% endif %}		
+			{% assign counter = counter | plus: 1 -%}
 		{% endfor %}
-	</ul>
+	</ul>	
+		{% assign mediasize = mediasize | minus: 1 %}
+		{% assign maxpages = mediasize | divided_by: 25 %}
+		{% assign maxpages2 = maxpages | plus: 1 -%}
+	{% if min <= mediasize -%}
+	<nav class="nav  nav--paginator">
+	{% if prev %}
+		{% if paginateprev == 1 -%}
+			<a href="/media" class="pagination  pagination--previous">&larr; neuer</a>
+		{% else -%}
+			<a href="/media/{{paginateprev}}" class="pagination  pagination--previous">&larr; neuer</a>
+		{% endif %}
+	{% endif %}
+	<span class="pagination  pagination--counter">Seite: {{ currentpage }} von {{ maxpages2 }}</span>
+	{% if next %}
+		<a href="/media/{{paginatenext}}" class="pagination  pagination--next">älter &rarr;</a>
+	{% endif %}
+	</nav>
+	{% else -%}
+	Diese Seite wurde leider nicht gefunden.
+	{% endif -%}
 </section>
\ No newline at end of file

_includes/post-pagination.html

@@ -7,7 +7,7 @@
     <span class="pagination  pagination--previous">&larr; neuer</span>
   {% endif %}
 
-  <span class="pagination  pagination--counter">Page: {{ paginator.page }} of {{ paginator.total_pages }}</span>
+  <span class="pagination  pagination--counter">Seite: {{ paginator.page }} von {{ paginator.total_pages }}</span>
 
   {% if paginator.next_page %}
     {% capture next_url %}{{ paginator.next_page_path | replace: '.html', '' }}{% endcapture -%}

_layouts/media.html

@@ -8,7 +8,7 @@ layout: default
 
 	<div class="calendar-container">
 
-		{% include media-list.html %}
+		{% include media-list.html page=0%}
 
 	</div>
 	

_layouts/media10.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=9%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media11.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=10%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media12.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=11%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media2.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=1%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media3.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=2%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media4.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=3%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media5.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=4%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media6.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=5%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media7.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=6%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media8.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=7%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

_layouts/media9.html

+---
+layout: default
+---
+
+{% include site-header.html %}
+
+<main class="main container">
+
+	<div class="calendar-container">
+
+		{% include media-list.html page=8%}
+
+	</div>
+	
+	
+</main>
+
+{% include site-footer.html %}
\ No newline at end of file

media.md

 ---
 layout: media
 collectionpage: media
+permalink: /media/
 aside: false
 ---
\ No newline at end of file

media10.md

+---
+layout: media10
+collectionpage: media
+permalink: /media/10
+aside: false
+---
\ No newline at end of file

media11.md

+---
+layout: media11
+collectionpage: media
+permalink: /media/11
+aside: false
+---
\ No newline at end of file

media12.md

+---
+layout: media12
+collectionpage: media
+permalink: /media/12
+aside: false
+---
\ No newline at end of file

media2.md

+---
+layout: media2
+collectionpage: media
+permalink: /media/2
+aside: false
+---
\ No newline at end of file

media3.md

+---
+layout: media3
+collectionpage: media
+permalink: /media/3
+aside: false
+---
\ No newline at end of file