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From Upayavira ...@odoko.co.uk>
Subject Re: Issue with if() statement
Date Sat, 02 Jan 2016 12:03:17 GMT
Hrmph. I've got an Ant based codebase for building custom components
against Solr. I've been asked on numerous occasions to publish this
codebase. It is now at:

https://github.com/upayavira/custom-solr-components

There's no sample code in there yet. I'll see if I can stick one in
there now, but I'm not sure how much time I have today to pull it all
together (making it look nice and clear takes much more effort than
making it work!).

Upayavira

On Sat, Jan 2, 2016, at 02:15 AM, William Bell wrote:
> Sample code for a simple query parser?
> 
> On Fri, Jan 1, 2016 at 3:08 PM, Upayavira <uv@odoko.co.uk> wrote:
> 
> > You've got to think of what the queries will be that you produce under
> > the bonnet - what you are talking about is either a (!func} or a
> > {!frange} query - both of which are inefficient as they must scan the
> > entire resultset.
> >
> > However, what you're trying to do is evaluate the length of the *input
> > value*, not a value in the documents being searched, so this doesn't
> > really apply - you're talking about doing some work before your query
> > happens.
> >
> > Again, I'm not sure of a way to do this on a stock Solr, but with a
> > little coding it should be achievable - you could extend the switch
> > query parser, or you could write your own - they're not that hard to
> > create. Or, you could create a search component that operates before the
> > QueryComponent does.
> >
> > A simple queryparser of your own would seem like a pretty lightweight
> > thing - probably 20 lines of code or less.
> >
> > Upayavira
> >
> > On Fri, Jan 1, 2016, at 09:40 PM, William Bell wrote:
> > > Forgot last bit:
> > >
> > > fq={!switch case.gt.0=$state1
> > >                              default=$state
> > >                              func=len($state1)}</str>
> > >
> > >
> > > On Fri, Jan 1, 2016 at 2:39 PM, William Bell <billnbell@gmail.com>
> > wrote:
> > >
> > > > Maybe we can add function value on a switch?
> > > >
> > > > fq={!switch case.gt.0
> > > >                              default=$state
> > > >                              func=len($state1)}</str>
> > > >
> > > >
> > > >
> > > > We could add: gt, lt, eq, ge, le ?
> > > >
> > > > gt: greater than
> > > > lt: less than
> > > > eq: equal
> > > > ge: greater than or equal
> > > > le: less than or equal
> > > >
> > > > ??
> > > >
> > > >
> > > >
> > > > On Fri, Jan 1, 2016 at 2:25 PM, William Bell <billnbell@gmail.com>
> > wrote:
> > > >
> > > >> This all started with me trying to use {!switch} to indicate with
CO
> > or
> > > >> NY to use. if we pass state1, that is supposed to take precedence,
> > but if
> > > >> nothing is returned, then use state.... Make sense now?
> > > >>
> > > >> I could not find a way to check for strlen($state1). Which is what
I
> > want
> > > >> in the case statement. This just does not work...
> > > >> Something like the following is what I am trying to do:
> > > >>
> > > >>
> > > >> fq={!switch case."anything"=$state1
> > > >>                             default=$state
> > > >>                              v=$state1}</str>
> > > >>
> > > >> So I tried the following to set all 50 states:
> > > >>
> > > >>
> > > >> fq={!switch case.all='*:*'
> > > >>                              case.CO='state:CO'
> > > >>                              case.NY='state:NY'
> > > >>                              v=$state1}</str>
> > > >>
> > > >>
> > > >> Obviously Oregon (OR!) is an issue, and it won't work at all plus
> > > >>
> > > >>
> > > >>
> > > >> On Fri, Jan 1, 2016 at 2:15 PM, William Bell <billnbell@gmail.com>
> > wrote:
> > > >>
> > > >>> Another weirdness:
> > > >>>
> > > >>>
> > > >>>
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:CO&state1=state:NY&fl=*&q=*:*&tt=$state1&fq={!lucene%20v=$tt}
> > > >>> <
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:CO&state1=state:NY&fl=*&q=*:*&tt=$state1&fq=%7B!lucene%20v=$tt%7D
> > >
> > > >>>
> > > >>> That does not return anything.
> > > >>>
> > > >>> But if I set v=$state1 I get results.
> > > >>>
> > > >>> Can I not set equivalent variables?
> > > >>>
> > > >>>
> > > >>>
> > > >>> On Fri, Jan 1, 2016 at 2:07 PM, William Bell <billnbell@gmail.com>
> > > >>> wrote:
> > > >>>
> > > >>>> Example.
> > > >>>>
> > > >>>>
> > > >>>>
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:%22CO%22&state1=state:%22NY%22&fl=ss,score&q=*:*&fq={!lucene%20v=$state1}
> > > >>>> <
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:%22CO%22&state1=state:%22NY%22&fl=ss,score&q=*:*&fq=%7B!lucene%20v=$state1%7D
> > >
> > > >>>>
> > > >>>> This return 236,000
> > > >>>>
> > > >>>>
> > > >>>>
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:%22CO%22&state1=state:%22NY%22&fl=ss,score&q=*:*&fq={!lucene%20v=$state}
> > > >>>> <
> > http://localhost:8983/solr/providersearch/select?wt=json&state=state:%22CO%22&state1=state:%22NY%22&fl=ss,score&q=*:*&fq=%7B!lucene%20v=$state%7D
> > >
> > > >>>>
> > > >>>> This returns 10,000
> > > >>>>
> > > >>>> I want to put an IF statement around which v to use.
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> On Fri, Jan 1, 2016 at 1:52 PM, William Bell <billnbell@gmail.com>
> > > >>>> wrote:
> > > >>>>
> > > >>>>> Sure.
> > > >>>>>
> > > >>>>> If the state:NY returns results filter by state:NY, if
it does not,
> > > >>>>> then use state:CO. If we have results in NY, use it, otherwise
use
> > CO.
> > > >>>>>
> > > >>>>> OK?
> > > >>>>>
> > > >>>>> On Fri, Jan 1, 2016 at 1:15 PM, Upayavira <uv@odoko.co.uk>
wrote:
> > > >>>>>
> > > >>>>>>
> > > >>>>>>
> > > >>>>>> On Thu, Dec 31, 2015, at 11:50 PM, William Bell wrote:
> > > >>>>>> > We are getting weird results with if(exists(a),b,c).
We are
> > getting
> > > >>>>>> b+c!!
> > > >>>>>> >
> > > >>>>>> >
> > > >>>>>>
> > http://localhost:8983/solr/providersearch/select?q=*:*&wt=json&state=state:%22CO%22&state1=state:%22NY%22&fq=if(exists(query($state1)),{!lucene%20v=$state1},{!lucene%20v=$state})
> > > >>>>>> <
> > http://localhost:8983/solr/providersearch/select?q=*:*&wt=json&state=state:%22CO%22&state1=state:%22NY%22&fq=if(exists(query($state1)),%7B!lucene%20v=$state1%7D,%7B!lucene%20v=$state%7D)
> > >
> > > >>>>>> >
> > > >>>>>> > I am getting NY and CO!
> > > >>>>>> >
> > > >>>>>> > I only want $state1, which is NY.
> > > >>>>>> >
> > > >>>>>> > Any other ways to craft this?
> > > >>>>>>
> > > >>>>>> Does this work at all?
> > > >>>>>>
> > > >>>>>> The if() function is a function query that can be
used to sort,
> > boost
> > > >>>>>> and as calculated fields. I haven't seen them used
in filtering.
> > > >>>>>>
> > > >>>>>> Also, the query() function does *not* do a query,
it just says
> > "what
> > > >>>>>> would this document score for this query?"
> > > >>>>>>
> > > >>>>>> Can you describe in English what you are trying to
do?
> > > >>>>>>
> > > >>>>>> Upayavira
> > > >>>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>> --
> > > >>>>> Bill Bell
> > > >>>>> billnbell@gmail.com
> > > >>>>> cell 720-256-8076
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> --
> > > >>>> Bill Bell
> > > >>>> billnbell@gmail.com
> > > >>>> cell 720-256-8076
> > > >>>>
> > > >>>
> > > >>>
> > > >>>
> > > >>> --
> > > >>> Bill Bell
> > > >>> billnbell@gmail.com
> > > >>> cell 720-256-8076
> > > >>>
> > > >>
> > > >>
> > > >>
> > > >> --
> > > >> Bill Bell
> > > >> billnbell@gmail.com
> > > >> cell 720-256-8076
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > Bill Bell
> > > > billnbell@gmail.com
> > > > cell 720-256-8076
> > > >
> > >
> > >
> > >
> > > --
> > > Bill Bell
> > > billnbell@gmail.com
> > > cell 720-256-8076
> >
> 
> 
> 
> -- 
> Bill Bell
> billnbell@gmail.com
> cell 720-256-8076

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