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[EP-tech] Re: exact match on advanced search


I won't be able to help you on this.
What I have done is doing some trials and errors before finding something which seems to work as we intended.
As far as I understand it, EX does not allow wildcard searches as the field must match exactly. 
And with match=IN, we do not search for exact matches...
So, I don't know how to do what you need.

And about sql_index, it was a part of my trials/errors...
Perhaps it has no real use. I didn't try to remove it...

Regards.
GF



Great!

   this is undocumented, I've search a lot for a way to insert EX as
option, and didn't find anything about match.

   Anyway, what they really asked me is a wildcard search, I mean:

   doc1: field contains ABCYZ
   doc2: field contains ABCABC
   doc1: field contains ABDEF

they want to search for

   ABC

   and get doc1 and doc2.

   Can this be possible with Eprints? May I use match=IN? The problem is
that a string as F.14.13 is not indexed at all because F is a single
letter word...

   P.S: is sql_index => 1 mandatory or just help for performances?

Il 13/05/2015 08:11, Gilles Fournié ha scritto:

Hi,

I have already seen an advice about using "id" and I had a a small
concern about it.

The Wiki says
(http://wiki.eprints.org/w/Category:EPrints_Metadata_Fields#Internal-use_and_Deprecated_Field_Types)
:

        Internal-use and Deprecated Field Types

           Basic metadata field
               File - virtual field represtenting the files in a document
      *  Id - deprecated (do not use)*
               Int
                   Year - deprecated (do not use)

So is the Wiki right or not ? Is 'ID" really safe to use ?

We had to find a way to search on multiword keywords and so we also
needed exact matches.
As ID is advertised as "do not use", we had to find another way.
We ended up adding a "match" attribute to the field definition,...

      {
               name => 'agrovoc_mat',
               type => 'compound',
               multiple => 1,
               input_boxes => 3,
               fields => [
                       {
                               sub_name => 'motcle',
                               type => 'text',
                               sql_index => 1,
      *match => 'EX',*
                               browse_link => 'agrovoc_mat',
                       },
                       {
                               sub_name => 'id',
                               type => 'bigint',
                       },
               ],
      },

BTW, I'm not sure at all whether this solution is safer or not...

If someone can clarify that, it would be nice.

Thanks.
GF



Le 12/05/2015 17:53, Timothy Miles-Board a écrit :

What type of field is it? Text? Try changing to id - this doesn't do
any preprocessing of search terms.

Tim

On 12 May 2015 3:11 pm, Yuri <yurj@alfa.it> wrote:

      Hi!

        I would like to change a text search on a field to be an exact
      match.

      now I've:

          search_fields => [
             { meta_fields => [ $EPrints::Utils::FULLTEXT ] },
             { meta_fields => [ "localizzazione" ] },
             { meta_fields => [ "tipo_fruizione" ] },
             { meta_fields => [ "collocazione" ] },

      [..]

      I would like to have the "localizzazione" field to be an exact match
      instead of a text search (which instead removes dots, spaces and
      so on).

      Which is the best way to do it? I need it in the advanced search
      form,
      it is not a custom script (which can use filters and works).
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