SorinSearchFilter

Sorin Search Filter is a Sorin extension that provides an extensible, customizable framework for building a front end panel for search filters, populating it with specified filters, and supplying the filters to the active search catalog extension, which must then be edited to add in filter parsing functions.

Installation

1. Add the following to Sorin's root-level mix.exs:

def deps do
  [
    ...,
    {:sorin_search_filter, git: "https://github.com/seulibrary/Sorin-Search-Filter"},
  ]
end

2. From the root of the application:

$ mix deps.get && mix deps.compile

3. Add the necessary configuration stanza to sorin.exs, as outlined below

4. From the root of the application:

$ mix setup_extension SorinSearchFilter

setup_extension is a mix task that runs npm, migrates the necessary JavaScript into the frontend application, and compiles config.json from sorin.exs.

You are now ready to roll. 🚗

The configuration stanza

All of SorinSearchFilter's configuration lives in Sorin's main configuration file, sorin.exs. To begin to populate it, add this stanza:

config :sorin_search_filter,
  filters: [
  
  ]

The square brackets indicate that the filters key takes a list as its value; in this case a list of filters you want to use, with each filter encoded as an Elixir map: %{key: value}.

config :sorin_search_filter,
  filters: [
    %{label: "Search By:",
      variable: "search_by",
      format: "radio",
      group: "queryField",
      entries: [
        %{label: "Any",
          variable: "any"},
        %{label: "Creator",
          variable: "creator"},
        %{label: "Subject",
          variable: "subject"},
        %{label: "Title",
          variable: "title"}
      ]
    },
    ...
  ]

The following table provides a description of the available keys and how to use them. An example of their use is provided below.

Key	Options	Description
filters:	[] List of %{} maps	This outer key encloses the list of all filters
label:	String	Human readable text, and what is rendered in browser as the filter label
variable:	A camel cased string with no spaces or special characters	The name field for the html form; also returned as a key to the catalog extension
format:	"checkbox", "radio", or "slider_and_boxes"	What type of input is rendered
entries:	[] List of %{} maps	A list of possible selection elements for the given filter. Each entry includes its own label and variable fields, as above. Entries can also include an api_parameter:
api_parameter	String	String that is passed into an api request parameter

Note: slider_and_boxes is a special format for dates that requires a couple different fields in the entries map:

Key	Options	Description
min_variable:	A camel cased string with no spaces or special characters	The internal variable (key) for encoding a minimum date
max_variable:	A camel cased string with no spaces or special characters	The internal variable (key) for encoding a maximum date
min_value:	Integer	Minimum amount that is able to be passed into the form.
max_value:	Integer or function (DateTime.utc_now().year) that returns an integer	Maximum amount that is able to be passed into the form.

Example

config :sorin_search_filter,
  filters: [
    %{label: "Show:",
      variable: "show",
      format: "checkbox",
      entries: [
        %{label: "Peer Reviewed",
          variable: "peer_reviewed",
          api_parameter: "facet_tlevel,exact,peer_reviewed"},
        %{label: "Available in Library",
          variable: "available_in_library",
          api_parameter: "facet_tlevel,include,available"},
        %{label: "Presearch",
          variable: "presearch",
          api_parameter: "facet_rtype,exact,reference_entrys"}
      ]
     },
    %{label: "Search By:",
      variable: "search_by",
      format: "radio",
      entries: [
        %{label: "Any",
          variable: "any"},
        %{label: "Creator",
          variable: "creator"},
        %{label: "Subject",
          variable: "subject"},
        %{label: "Title",
          variable: "title"}
      ]
    },
    %{label: "Item Type:",
      variable: "item_type",
      format: "radio",
      entries: [
        %{label: "All",
          variable: "all",
          api_parameter: ""},
        %{label: "Books",
          variable: "books",
          api_parameter: "facet_rtype,exact,books"},
        %{label: "Articles",
          variable: "articles",
          api_parameter: "facet_rtype,exact,articles"},
        %{label: "Videos",
          variable: "videos",
          api_parameter: "facet_rtype,exact,videos"}
      ]
    },
    %{label: "Sort by:",
      variable: "sort_by",
      format: "radio",
      entries: [
        %{label: "Relevance",
          variable: "relevance"},
        %{label: "Date (newest)",
          variable: "date_newest"}
      ]
    },
    %{label: "Publish Date:",
      variable: "publish_date",
      format: "slider_and_boxes",
      entries: [
        %{label: "Years",
          min_variable: "min_date",
          max_variable: "max_date",
          min_value: 1000,
          max_value: DateTime.utc_now().year}
      ]
    }
  ]

Versioning

As recommended by and for the rest of the Elixir community, we tag production-ready releases with Semantic Versioning. To see the list of versioned releases, please see the tags on this repository.

Questions, Feedback, and How to Get Involved

We welcome questions, ideas, feedback, comments, and bug reports via the Sorin issue tracker. To contribute bug fixes, improvements to documentation, or new features, pull requests are gratefully encouraged. We would also be delighted to work with you on the development of new extensions, especially for new search targets. For more information please see CONTRIBUTING.md. Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

License

This project is licensed under the GNU General Public License v3.0 -- see LICENSE for details.