Prev / Next links for a Relationship column inside a Grid
How Do I?
I am using EE to display an online book, that is broken-down into
Volumes->Chapters->Pages
The way it’s structured, I have
Volume as a channel with 1 custom field “Chapters”, which is a Grid. Within this Grid are:
Chapter | Chapter URI | Pages
Pages is a Relationship to the channel Book_Pages. So in each ‘Pages’, there is a list of Book_Pages.
I’m at wits end trying to code “Previous” and “Next” links per chapter. The relationship within a grid is throwing me a curve ball. The Prev and Next shouldn’t be linking to whats prev/next in the actual Book_Pages channel, but within the Chapter->Pages list.
Hoping someone can provide me some guidance!
Thanks
So this is probably a total hack, and it’s not working yet, but I’m trying to use Stash to get the Prev and Next links
<!-- Previous/Next links - hacky -->
{exp:channel:entries channel="textbook" url_title="{segment_2}" dynamic="no"}
{if no_results}
{redirect="404"}
{/if}
{tb_chapters}
{if segment_3 == "{tb_chapters:chapter_uri}"} <!-- only worry about pages in current chapter -->
<!-- setup loop-break variables -->
{exp:stash:set}
{stash:pn_finish}0{/stash:pn_finish}
{stash:pn_active}0{/stash:pn_active}
{/exp:stash:set}
{tb_chapters:pages}
{if "{exp:stash:get name='pn_finish' random}" == "0"}
-TEST-
{if "{exp:stash:get name='pn_active' random}" == "1"} <!-- update NEXT page -->
{exp:stash:set}
{stash:pn_next_title}{tb_chapters:pages:title}{/stash:pn_next_title}
{stash:pn_next_url_title}{tb_chapters:pages:url_title}{/stash:pn_next_url_title}
{stash:pn_finish}1{/stash:pn_finish}
{/exp:stash:set}
{if:elseif segment_4 == "{tb_chapters:pages:url_title}"} <!-- active page -->
{exp:stash:set name="pn_active"}1{/exp:stash:set}
{if:else} <!-- update PREVIOUS page -->
{exp:stash:set}
{stash:pn_prev_title}{tb_chapters:pages:title}{/stash:pn_prev_title}
{stash:pn_prev_url_title}{tb_chapters:pages:url_title}{/stash:pn_prev_url_title}
{/exp:stash:set}
{/if}
{/if}
{/tb_chapters:pages}
{/if}
{/tb_chapters}
{/exp:channel:entries}
{exp:stash:get name='pn_prev_title'}
{exp:stash:get name='pn_next_title'}“-TEST-” only outputs one time however, which means it’s only entering the loop once? It should be looping through at least 4 times on the current page I’m on.
I’m still quite new to the world of EE - any advice would be much appreciated.
Thanks!
Here is my second hack attempt…still not working hah.
<!-- Previous/Next links - hacky -->
{exp:channel:entries channel="textbook" url_title="{segment_2}" dynamic="no"}
{if no_results}
{redirect="404"}
{/if}
{tb_chapters}
{if segment_3 == "{tb_chapters:chapter_uri}"} <!-- only worry about pages in current chapter -->
{tb_chapters:pages}
{if "{exp:stash:get name='pn_finish' default='0'}" == "1"}
DONE
{if:elseif "{exp:stash:get name='pn_active' default='0'}" == "1"} <!-- update NEXT page -->
NEXT
{exp:stash:set name="pn_next_title"}{tb_chapters:pages:title}{/exp:stash:set}
{exp:stash:set name="pn_next_url_title"}{tb_chapters:pages:url_title}{/exp:stash:set}
{exp:stash:set name="pn_finish"}1{/exp:stash:set}
{if:elseif segment_4 == "{tb_chapters:pages:url_title}"} <!-- active page -->
ACTIVE
{exp:stash:set name="pn_active"}1{/exp:stash:set}
{if:else} <!-- update PREVIOUS page -->
PREVIOUS
{exp:stash:set name="pn_prev_title"}{tb_chapters:pages:title}{/exp:stash:set}
{exp:stash:set name="pn_prev_url_title"}{tb_chapters:pages:url_title}{/exp:stash:set}
{/if}
{/tb_chapters:pages}
{/if}
{/tb_chapters}
{/exp:channel:entries}
{exp:stash:get name='pn_prev_title'}
{exp:stash:get name='pn_next_title'}
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