How best to support Search Syntax

[Vignesh Sarma]

Hi,

I have to support the search function like,

AND, OR, etc..

Right now since haystack conjuncts with either AND or OR I can not support the other.My back-end is solr, which supports these function all by default. I just need haystack to move out the way. I am trying to use raw_search().

Is this my best option, is it safe?

Is there a problem with adding other filters on top of raw_search()?

Thanks,

Vignesh

[Danny Adair]

Hi Vignesh,

On Thu, Apr 26, 2012 at 21:24, Vignesh Sarma <vig...@recruiterbox.com> wrote:
>[...]

> I have to support the search function like,
> AND, OR, etc..
>
> Right now since haystack conjuncts with either AND or OR I can not support
> the other.My back-end is solr, which supports these function all by default.

Maybe I'm misunderstanding the issue but have you seen SQ objects
http://django-haystack.readthedocs.org/en/latest/searchquery_api.html#sq-objects

"For expressing more complex queries, especially involving AND/OR/NOT
in different combinations, you should use SQ objects. Like
django.db.models.Q objects, SQ objects can be passed to
SearchQuerySet.filter and use the familiar unary operators (&, | and
~) to generate complex parts of the query."

Cheers,
Danny

[Vignesh Sarma]

Hi Denny,

I have to support an even more complex syntax like, 

author:name

quotes like "firstname lastname"

also brackets, I am planning to extend the search engine query parser in http://pyparsing.wikispaces.com/file/view/searchparser.py,

Is this the best way to proceed, 

Thanks,

Vignesh

[Danny Adair]

On Fri, Apr 27, 2012 at 01:22, Vignesh Sarma <vig...@recruiterbox.com> wrote:
>[...]

> I have to support an even more complex syntax like,
> author:name
> quotes like "firstname lastname"
> also brackets, I am planning to extend the search engine query parser
> in http://pyparsing.wikispaces.com/file/view/searchparser.py,
> Is this the best way to proceed,

Looks good to me.
You're parsing the user input into a Python object and then build the
haystack query with SQ objects from that.
I assume prefixes like "author:" go against their own index field,
everything else against a fulltext index.
Can't see an issue - all the best!

Cheers,
Danny

[Andrei]

Thanks, Danny!

Andrei

On Wed, Apr 3, 2013 at 12:07 PM, Danny Adair wrote:

Hi Andrei,
Two weeks after that message, Vignesh sent this
https://groups.google.com/forum/#!msg/django-haystack/TjvAd7I9YSo/BFZ9vksHx60J

announcing https://github.com/recruiterbox/haystack-queryparser
which was last updated... this year!

Cheers,
Danny

On Wednesday, April 3, 2013 11:57:31 AM UTC+2, Andrei wrote:

Hi guys,

Have you managed to implement what you needed? Is this open sourced somewhere?

This could be a really, really nice pull request to haystack.

Are there any other available packages to solve this problem?

Thanks,

Andrei