randomize only specified documents?

77 Posts

Chris Reply #1, 15 years, 10 months ago

Hi there!

I have some troubles with Ditto and the randomize parameter. My document id "3" holds a large amount of subdocuments (game reviews). Now I want get the 10 newest documents, depending on the latest release dates of those games. My TV "SpieleRelease" is holding the release date, and the TV "SpieleWertungGesamt" is holding the score. The following Ditto call works fine to get only the latest released game that has been reviewed:

[[Ditto? &startID=`3` &sortBy=`SpieleRelease` &filter=`SpieleWertungGesamt,-,2` &dateFormat=`%A, %d. %b %Y, %H:%M Uhr` &sortDir=`DESC` &total=`1` &showPublishedOnly=`1` &showInMenuOnly=`1` &tpl=`iiiReviewHomeTpl`]]

But now I do not want to have this limitation, instead I want to have one of the latest 10 reviewed releases showing randomly. I tried the following Ditto call:

[[Ditto? &startID=`3` &sortBy=`SpieleRelease` &filter=`SpieleWertungGesamt,-,2` &dateFormat=`%A, %d. %b %Y, %H:%M Uhr` &sortDir=`DESC` &total=`10` &display=`1` &showPublishedOnly=`1` &showInMenuOnly=`1` &tpl=`iiiReviewHomeTpl` &randomize=`1`]]

It does randomize the output, but it doesn’t recognize the limitation of 10 latest releases - the output shows a random review picked out of the complete document tree. So is there any possibility to get the latest 10 documents first and randomize those instead of the whole subtree?

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535 Posts

empiguet Reply #2, 15 years, 10 months ago

you can use 2 nested call of Ditto.

[[Ditto &documents=`[!Ditto? &total=`10` &tpl=`[+id+]`!]` &randomize=`1` ]]

should work but not verified.

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77 Posts

Chris Reply #3, 15 years, 10 months ago

Thank you! But there seems to be a problem nesting another Ditto call sad

When I hard code the documents like the following example, then it works correctly:

[[Ditto? &documents=`2055,2032,1927,1884` &dateFormat=`%A, %d. %b %Y, %H:%M Uhr` &display=`1` &showPublishedOnly=`1` &showInMenuOnly=`1` &tpl=`iiiReviewHomeTpl` &randomize=`1`]]

While trying to nest the Ditto call I get just an error response "No documents found.":

[[Ditto? &documents=`[!Ditto? &parents=`3` &filter=`SpieleWertungGesamt,-,2` &orderBy=`SpieleRelease DESC` &total=`10` &tpl=`iiiJustIDs`!]` &dateFormat=`%A, %d. %b %Y, %H:%M Uhr` &display=`1` &showPublishedOnly=`1` &showInMenuOnly=`1` &tpl=`iiiReviewHomeTpl` &randomize=`1`]]

(My tpl iiiJustIDs just holds "[+id+],")

Any ideas?! huh

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956 Posts

ganeshXL Reply #4, 15 years, 10 months ago

Don’t really have time to reproduce your situation on my local dev install, but I’d try one of the following things:

a) Work with the Ditto "save" parameter. This allows you to have a first Ditto call that doesn’t render anything in the frontend. Instead, it will hold (save) some variables for you, that you can use in a 2nd Ditto call.
Here’s a few forum threads with examples etc.:
http://modxcms.com/forums/index.php?topic=20929.0
http://modxcms.com/forums/index.php?topic=41876.0
http://modxcms.com/forums/index.php?topic=44602.0

b) Perhaps you can define / create a phx filter? http://wiki.modxcms.com/index.php/PHx

c) Maybe you can create a custom Ditto filter? http://ditto.modxcms.com/tutorials/basic_filtering.html

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535 Posts

empiguet Reply #5, 15 years, 10 months ago

ok, just tested what i said before and it works.. well you need to adjust a bit

this one grab 2 doc in parent 33 and then randomize :

[!Ditto? &documents=`[[Ditto? &parents=`33` &total=`2` &tpl=`justId` &tplLast=`justIdLast`]]` &randomize=`1`!]

Please note: [!...[[...]]....!]

And you need to output ids like this "1,2,3,4,5,6" so a tpl with just "[+id+]," is not enough. you need to make another tpl for the last element with &tplLast (in our case "[+id+]" without the ",").

if you dont want to use a chunk for only the Id, you normally can do that

&tpl=`@CODE:[+id+],` &tplLast=`@CODE:[+id+]`

(in my tests this broke the sql queries.. weird.. but should work! wink

more: bruno made a simple but effective examples who run ditto with $modx->runSnippet(’Ditto’,$params);.

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Chris Reply #6, 15 years, 10 months ago

Hey, thanks a lot guys!

I was also playing around with my Ditto call and tried something different which works too:

[[Ditto? &parents=`3` &filter=`SpieleWertungGesamt,-,2` &where=`editedon > (unix_timestamp(now())-2629743)` &dateFormat=`%A, %d. %b %Y, %H:%M Uhr` &orderBy=`SpieleRelease DESC` &total=`1` &display=`1` &showPublishedOnly=`1` &showInMenuOnly=`1` &tpl=`iiiReviewHomeTpl` &randomize=`1`]]

I added the &where parameter which filters my documents that have been edited within the last four weeks ... combined with the other parameters and &randomize outputs a random game review out of a set of current documents.

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