Class: Sunspot::DSL::StandardQuery

Inherits:
FieldQuery show all
Includes:
Adjustable, Paginatable
Defined in:
lib/sunspot/dsl/standard_query.rb

Overview

This class presents a DSL for constructing queries using the Sunspot.search method. Methods of this class are available inside the search block. Much of the DSL’s functionality is implemented by this class’s superclasses, Sunspot::DSL::FieldQuery and Sunspot::DSL::Scope

See Sunspot.search for usage examples

Direct Known Subclasses

Search

Constant Summary

Constants inherited from Scope

Sunspot::DSL::Scope::NONE

Instance Method Summary collapse

Methods included from Paginatable

#paginate

Methods included from Adjustable

#adjust_solr_params, #request_handler

Methods inherited from FieldQuery

#dynamic, #facet, #initialize, #order_by, #order_by_random

Methods inherited from Scope

#all_of, #any_of, #dynamic, #initialize, #text_fields, #with, #without

Constructor Details

This class inherits a constructor from Sunspot::DSL::FieldQuery

Instance Method Details

#fulltext(keywords, options = {}, &block) ⇒ Object Also known as: keywords

Specify a phrase that should be searched as fulltext. Only text fields are searched - see DSL::Fields.text

Keyword search is executed using Solr’s dismax handler, which strikes a good balance between powerful and foolproof. In particular, well-matched quotation marks can be used to group phrases, and the + and - modifiers work as expected. All other special Solr boolean syntax is escaped, and mismatched quotes are ignored entirely.

This method can optionally take a block, which is evaluated by the Fulltext DSL class, and exposes several powerful dismax features.

Parameters

keywords<String>

phrase to perform fulltext search on

Options

:fields<Array>

List of fields that should be searched for keywords. Defaults to all fields configured for the types under search.

:highlight<Boolean,Array>

If true, perform keyword highlighting on all searched fields. If an array of field names, perform highlighting on the specified fields. This can also be called from within the fulltext block.

:minimum_match<Integer>

The minimum number of search terms that a result must match. By default, all search terms must match; if the number of search terms is less than this number, the default behavior applies.

:tie<Float>

A tiebreaker coefficient for scores derived from subqueries that are lower-scoring than the maximum score subquery. Typically a near-zero value is useful. See wiki.apache.org/solr/DisMaxRequestHandler#tie_.28Tie_breaker.29 for more information.

:query_phrase_slop<Integer>

The number of words that can appear between the words in a user-entered phrase (i.e., keywords in quotes) and still match. For instance, in a search for “"great pizza"” with a phrase slop of 1, “great pizza” and “great big pizza” will match, but “great monster of a pizza” will not. Default behavior is a query phrase slop of zero.



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# File 'lib/sunspot/dsl/standard_query.rb', line 56

def fulltext(keywords, options = {}, &block)
  if keywords && !(keywords.to_s =~ /^\s*$/)
    fulltext_query = @query.add_fulltext(keywords)
    if field_names = options.delete(:fields)
      Util.Array(field_names).each do |field_name|
        @setup.text_fields(field_name).each do |field|
          fulltext_query.add_fulltext_field(field, field.default_boost)
        end
      end
    end
    if minimum_match = options.delete(:minimum_match)
      fulltext_query.minimum_match = minimum_match.to_i
    end
    if tie = options.delete(:tie)
      fulltext_query.tie = tie.to_f
    end
    if query_phrase_slop = options.delete(:query_phrase_slop)
      fulltext_query.query_phrase_slop = query_phrase_slop.to_i
    end
    if highlight_field_names = options.delete(:highlight)
      if highlight_field_names == true
        fulltext_query.add_highlight
      else
        highlight_fields = []
        Util.Array(highlight_field_names).each do |field_name|
          highlight_fields.concat(@setup.text_fields(field_name))
        end
        fulltext_query.add_highlight(highlight_fields)
      end
    end
    if block && fulltext_query
      fulltext_dsl = Fulltext.new(fulltext_query, @setup)
      Util.instance_eval_or_call(
        fulltext_dsl,
        &block
      )
    end
    if !field_names && (!fulltext_dsl || !fulltext_dsl.fields_added?)
      @setup.all_text_fields.each do |field|
        unless fulltext_query.has_fulltext_field?(field)
          unless fulltext_dsl && fulltext_dsl.exclude_fields.include?(field.name)
            fulltext_query.add_fulltext_field(field, field.default_boost)
          end
        end
      end
    end
  end
end

#near(coordinates, options) ⇒ Object

Scope the search by geographical distance from a given point. coordinates should either respond to #first and #last (e.g. a two-element array), or to #lat and one of #lng, #lon, or #long. options should be one or both of the following:

:distance

The maximum distance in miles from which results can come

:sort

Whether to sort by distance from these coordinates. If other sorts are specified, they take precedence over distance sort.



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# File 'lib/sunspot/dsl/standard_query.rb', line 117

def near(coordinates, options)
  if options.respond_to?(:to_f)
    options = { :distance => options }
  end
  @query.add_location_restriction(coordinates, options)
end