Class: EasySolr::Expressions

Inherits:
Object
  • Object
show all
Defined in:
lib/easy_solr/expressions.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Expressions

Returns a new instance of Expressions.



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# File 'lib/easy_solr/expressions.rb', line 6

def initialize
  @nn_solr_query_string = ' '
  @nn_prefix_expression = []
  @nn_params_array      = []
  @nn_query_string      = ''
end

Instance Attribute Details

Returns the value of attribute nn_custom_links.



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# File 'lib/easy_solr/expressions.rb', line 4

def nn_custom_links
  @nn_custom_links
end

Instance Method Details

#destroy! ⇒ Object

Description

每一次查询之后, 清除全部的 传入参数



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# File 'lib/easy_solr/expressions.rb', line 61

def destroy!
  @nn_solr_query_string = ' '
  @nn_prefix_expression = []
  @nn_params_array      = []
  @nn_query_string      = ''
end

#query_string_for_solr ⇒ Object

Description

生成 Solr 可以解析的字符串

Return

例如，将solr_params = expr.solr_where(“ title = ? and id = ? ”, ‘奥迪’, ‘620460’).

solr_where(" second_editor_id = ? ", '138')

生成

title: 奥迪 id: 620460 second_editor_id: 138



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# File 'lib/easy_solr/expressions.rb', line 46

def query_string_for_solr
  the_whole_solr_query_string = ' '

  @nn_prefix_expression.each do |_query_item|
    the_whole_solr_query_string.concat(_query_item.traslate_to_solr_str)
  end

  the_whole_solr_query_string
end

#solr_where(prefix, *params) ⇒ Object

Description

拼接用户传递的参数，将其转换为Solr可以识别的字符串



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# File 'lib/easy_solr/expressions.rb', line 19

def solr_where(prefix, *params)
  prefix_array = prefix.split("and")

  params.each_with_index do |_key, _index|
    @nn_prefix_expression << \
    ::EasySolr::QueryItem.new(nn_custom_links, prefix_array[_index], _key)
  end

  self
end