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Using "alias" to do two different searches on two channel on result page

Diego - Oltremedia s.a.s. 26 Jun 2018 09:58 question, complete

Hello,
I'm successfully doing a search on a channel, name it "A". You can find form here: https://pastebin.com/Sj7S6VJR
Now I want to do, on the same result page, a search on channel "B", but on two fields that have, in that channel, another name.
On the first search I've this field "child:cosa_incolla_relationship[]", on the second I want to search on two other fields, named "materiale_1" and "materiale_2", using both of the values passed in search.
A bit tricky, I know, I hope I explained it well.
Thanks.

Diego

Replies

Low 26 Jun 2018 13:21

If I understand correctly, the end result would be a list of entries that match Channel A with any given additional parameters OR channel B with the relationship and keywords that match field 1 OR 2.

If that is indeed the case, Low Search cannot do that out of the box. All parameters/filters are cumulative; combined with AND, as all parameters in EE are. You'd need custom filters to achieve anything specific and granular as you describe, I'm afraid.
Diego - Oltremedia s.a.s. 26 Jun 2018 13:42

There will be two results, the second one (the first one is ok) would be a list of channel B entries that matches two specific attributes coming from query. But in the query these two parameters have another name. So, am I supposed to use an alias in result tag?
Low 26 Jun 2018 15:46

If you have 1 parameter value that target 2 different params/filters, you could use an alias for both, to avoid one being picked up by the other.

For example, you could use the name q as a parameter and alias it to keywords in 1 results tag, and search:field in another. That way, one or the other is targeted.
Diego - Oltremedia s.a.s. 26 Jun 2018 16:19

Ok I give you an example.
Generated query now it's like
"/risultati?search:criteri_affinamento_0=Incollare+%2F+Riparare&child:cosa_incolla_relationship=pvc-rigido-laminati-plastici|alluminio"

Now, in the result page I have a result tag that has to search into "faq" channel for two fields, named materiale_1 and materiale_2, whose values I've in the query at "cosa_incolla_relationship". For the query I posted, so, I have to check for all "faq" entries that have "materiale_1" = "pvc-rigido-laminati-plastici" and "materiale_2" = "alluminio".
I made a query like that

{exp:low_search:results
query="{segment_3}"
channel="faq"
alias:materiale_1="cosa_incolla_relationship"
sort="asc"
}
but it does not works and I don't know how to go forward.
Thanks!
Low 26 Jun 2018 19:16

The alias option works only on full parameter names. So, using a query string like
```
?phrase=hello-world
```
and a Results tag like
```
{exp:low_search:results alias:keywords="phrase"}
```
...will treat the "prase" parameter as though it was "keywords", so searching for 'hello-world'. Using a part of a parameter will not work. So, having
```
alias:materiale_1="cosa_incolla_relationship"
```
will not work, as the parameter "materiale_1" does nothing nor is the parameter "cosa_incolla_relationship" in the query string. You're targeting parts of params. Instead, you'd need to use something like
```
alias:search:materiale_1="child:cose_incolla_relationship"
```
but that (i think) can cause both parameters to be triggered. Instead, use an alias that can be explained 2 ways in 2 Results tag, so
```
?thing=hello-world
```
and 1 results tag would contain
```
alias:child:cose_incolla_relationship="thing"
```
and the other results tag would contain
```
alias:search:materiale_1="thing"
```
Diego - Oltremedia s.a.s. 29 Jun 2018 10:37

Thanks for your answer, it helped me!