[dspace-tech]: advanced search boolean operators

[Nada Abo-Eita]

Dear DSpace community,

We have upgraded our Dspace to version 5.4 . With the previous version we had (1.8), we noticed that we can combine search filters using Boolean search operators (OR, AND,NOT).
But with the upgraded version, we don't have the ability to combine search filters using Boolean search operators (OR, AND).

In DSpace version 1.8 :
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In DSpace version 5.4 :
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So what if I want to search for this query "qatar" then filter the results to get only Article OR  Master Thesis How can I do this with DSpace version 5.4?

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Could you please explain why combing search filters using Boolean operators feature is not supported with v. 5.4?

Regards,

Nada Abo Eita

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[Nada Abo-Eita]

Hi All,

I just would like to raise my question again.
Your help will be appreciated. :)

[Tim Donohue]

Hello Nada,

AND/OR searches are still supported in DSpace, but they now must be typed into the search box (similar to you'd do in Google or similar). The search form itself has changed to better support the new Solr-based search engine (added in recent versions of DSpace). The new Solr based search engine gives us many distinct advantages, in that our entire browse/search system utilizes it (so that Search/Browse become more similar in nature) and we are able to now support the "Discover" facets on homepages / Community/Collection pages, and better searching within content (including hit highlighting).

But, in terms of boolean searching, you can still use it by simply typing it into the search box, for example:

qatar AND thesis

You also can limit by fields (if you know the field name/value), for example:

qatar AND type:thesis OR type:article

At this point in time, the boolean options are not selectable in the "Filters" section itself.  That might be possible to implement in the future, but we'd want to determine if enough of our users see that as a useful addition or not (and then locate a volunteer developer to help make that happen).

Tim

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Tim Donohue
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[Tiago Delboni]

Hi Tim!

How can I cast a vote favoring this implementation? :)
The same thing mentioned by Nada happened in our organization after migrating from 1.8.x to 5.x - our users were lost without the OR/AND combobox to specify advanced searchs.

[Tim Donohue]

Hi Tiago,

As open source software, DSpace is built by volunteers. We don't have a centralized development team and all new features are built by community volunteers.

So, while expressing your interest in a new feature is a wonderful way to start a discussion, we'd need to find one or more institutions (or individuals) willing to collaborate to build the new feature and give the code back to our project.

If you or anyone else reading this is interested in helping develop this feature, we have some guides which talk about how to give back to DSpace (with code or support help):

https://wiki.duraspace.org/display/DSPACE/Code+Contribution+Guidelines

https://wiki.duraspace.org/display/DSPACE/How+to+Contribute+to+DSpace

DSpace software really is a worldwide collaboration. We'd love others to join in and help contribute.

Thanks,

Tim