Class: ForestLiana::SearchQueryBuilder

Inherits:
Object
  • Object
show all
Defined in:
app/services/forest_liana/search_query_builder.rb

Constant Summary collapse

REGEX_UUID = 
/\A[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}\z/i

Instance Method Summary collapse

Constructor Details

#initialize(resource, params, includes, collection) ⇒ SearchQueryBuilder

Returns a new instance of SearchQueryBuilder.



5
6
7
8
9
10
 
# File 'app/services/forest_liana/search_query_builder.rb', line 5

def initialize(resource, params, includes, collection)
  @resource = @records = resource
  @params = params
  @includes = includes
  @collection = collection
end

Instance Method Details

#acts_as_taggable?(field) ⇒ Boolean

Returns:

  • (Boolean) 


162
163
164
165
 
# File 'app/services/forest_liana/search_query_builder.rb', line 162

def acts_as_taggable?(field)
  @resource.respond_to?(:acts_as_taggable) &&
    @resource.acts_as_taggable.include?(field)
end

#acts_as_taggable_query(tagged_records) ⇒ Object 



38
39
40
41
42
43
44
45
46
 
# File 'app/services/forest_liana/search_query_builder.rb', line 38

def acts_as_taggable_query(tagged_records)
  ids = tagged_records
    .map {|t| t[@resource.primary_key]}
    .join(',')

  if ids.present?
    return "#{@resource.primary_key} IN (#{ids})"
  end
end

#association?(field) ⇒ Boolean

Returns:

  • (Boolean) 


150
151
152
153
 
# File 'app/services/forest_liana/search_query_builder.rb', line 150

def association?(field)
  field = field.split(':').first if field.include?(':')
  @resource.reflect_on_association(field.to_sym).present?
end

#belongs_to_association?(field) ⇒ Boolean

Returns:

  • (Boolean) 


219
220
221
222
223
 
# File 'app/services/forest_liana/search_query_builder.rb', line 219

def belongs_to_association?(field)
  field = field.split(':').first if field.include?(':')
  association = @resource.reflect_on_association(field.to_sym)
  [:belongs_to, :has_one].include?(association.try(:macro))
end

#belongs_to_filter ⇒ Object 



245
246
247
248
249
250
251
252
253
254
255
256
257
 
# File 'app/services/forest_liana/search_query_builder.rb', line 245

def belongs_to_filter
  if @params[:filter]
    @params[:filter].each do |field, values|
      next unless belongs_to_association?(field)

      values.split(',').each do |value|
        @records = belongs_to_subfield_filter(field, value)
      end
    end
  end

  @records
end

#belongs_to_subfield_filter(field, value) ⇒ Object 



225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
 
# File 'app/services/forest_liana/search_query_builder.rb', line 225

def belongs_to_subfield_filter(field, value)
  field, subfield = field.split(':')

  association = @resource.reflect_on_association(field.to_sym)
  return if association.blank?

  operator, value = OperatorValueParser.parse(value)

  operator_date_interval_parser = OperatorDateIntervalParser.new(value,
    @params[:timezone])
  if operator_date_interval_parser.is_interval_date_value()
    filter = operator_date_interval_parser.get_interval_date_filter()
    @records = @records.where("#{association.table_name}.#{subfield} #{filter}")
  else
    where = "#{association.table_name}.#{subfield} #{operator}"
    where += " '#{value}'" if value
    @records = @records.where(where)
  end
end

#filter_param ⇒ Object 



118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
 
# File 'app/services/forest_liana/search_query_builder.rb', line 118

def filter_param
  if @params[:filterType] && @params[:filter]
    conditions = []

    @params[:filter].each do |field, values|
      # ActsAsTaggable
      if acts_as_taggable?(field)
        tagged_records = @records.tagged_with(values.tr('*', ''))

        if @params[:filterType] == 'and'
          @records = tagged_records
        elsif @params[:filterType] == 'or'
          conditions << acts_as_taggable_query(tagged_records)
        end
      else
        next if association?(field)

        values.split(',').each do |value|
          operator, value = OperatorValueParser.parse(value)
          conditions << OperatorValueParser.get_condition(field, operator,
            value, @resource, @params[:timezone])
        end
      end
    end

    operator = " #{@params[:filterType]} ".upcase
    @records = @records.where(conditions.join(operator))
  end

  @records
end

#format_column_name(table_name, column_name) ⇒ Object 



34
35
36
 
# File 'app/services/forest_liana/search_query_builder.rb', line 34

def format_column_name(table_name, column_name)
  ForestLiana::AdapterHelper.format_column_name(table_name, column_name)
end

#has_many_association?(field) ⇒ Boolean

Returns:

  • (Boolean) 


155
156
157
158
159
160
 
# File 'app/services/forest_liana/search_query_builder.rb', line 155

def has_many_association?(field)
  field = field.split(':').first if field.include?(':')
  association = @resource.reflect_on_association(field.to_sym)

  [:has_many, :has_and_belongs_to_many].include?(association.try(:macro))
end

#has_many_field_filter(field, value) ⇒ Object 



185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
 
# File 'app/services/forest_liana/search_query_builder.rb', line 185

def has_many_field_filter(field, value)
  association = @resource.reflect_on_association(field.to_sym)
  return if association.blank?

  operator, value = OperatorValueParser.parse(value)

  @records = @records
    .select("#{@resource.table_name}.*,
            COUNT(#{association.table_name}.id)
            #{association.table_name}_has_many_count")
    .joins(ArelHelpers.join_association(@resource, association.name,
      Arel::Nodes::OuterJoin))
    .group("#{@resource.table_name}.id")
    .having("COUNT(#{association.table_name}) #{operator} #{value}")
end

#has_many_filter ⇒ Object 



167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
 
# File 'app/services/forest_liana/search_query_builder.rb', line 167

def has_many_filter
  if @params[:filter]
    @params[:filter].each do |field, values|
      next if !has_many_association?(field) || acts_as_taggable?(field)

      values.split(',').each do |value|
        if field.include?(':')
          @records = has_many_subfield_filter(field, value)
        else
          @records = has_many_field_filter(field, value)
        end
      end
    end
  end

  @records
end

#has_many_subfield_filter(field, value) ⇒ Object 



201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
 
# File 'app/services/forest_liana/search_query_builder.rb', line 201

def has_many_subfield_filter(field, value)
  field, subfield = field.split(':')

  association = @resource.reflect_on_association(field.to_sym)
  return if association.blank?

  operator, value = OperatorValueParser.parse(value)

  @records = @records
    .select("#{@resource.table_name}.*,
            COUNT(#{association.table_name}.id)
            #{association.table_name}_has_many_count")
    .joins(ArelHelpers.join_association(@resource, association.name,
      Arel::Nodes::OuterJoin))
    .group("#{@resource.table_name}.id, #{association.table_name}.#{subfield}")
    .having("#{association.table_name}.#{subfield} #{operator} '#{value}'")
end

#perform ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'app/services/forest_liana/search_query_builder.rb', line 12

def perform
  @records = search_param
  @records = filter_param
  @records = has_many_filter
  @records = belongs_to_filter

  if @params[:search]
    ForestLiana.schema_for_resource(@resource).fields.each do |field|
      if field.try(:[], :search)
        begin
          @records = field[:search].call(@records, @params[:search])
        rescue => exception
          FOREST_LOGGER.error "Cannot search properly on Smart Field :\n" \
            "#{exception}"
        end
      end
    end
  end

  @records
end

#search_param ⇒ Object 



48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
 
# File 'app/services/forest_liana/search_query_builder.rb', line 48

def search_param
  if @params[:search]
    conditions = []

    @resource.columns.each_with_index do |column, index|
      column_name = format_column_name(@resource.table_name, column.name)
      if (@collection.search_fields && !@collection.search_fields.include?(column.name))
        conditions
      elsif column.name == 'id'
        if column.type == :integer
          value = @params[:search].to_i
          conditions << "#{@resource.table_name}.id = #{value}" if value > 0
        elsif REGEX_UUID.match(@params[:search])
          conditions << "#{@resource.table_name}.id =
            '#{@params[:search]}'"
        end
      # NOTICE: Rails 3 do not have a defined_enums method
      elsif @resource.respond_to?(:defined_enums) &&
        @resource.defined_enums.has_key?(column.name) &&
        !@resource.defined_enums[column.name][@params[:search].downcase].nil?
        conditions << "#{column_name} =
          #{@resource.defined_enums[column.name][@params[:search].downcase]}"
      elsif !(column.respond_to?(:array) && column.array) &&
        (column.type == :string || column.type == :text)
        conditions << "LOWER(#{column_name}) LIKE '%#{@params[:search].downcase}%'"
      end
    end

    # ActsAsTaggable
    if @resource.respond_to?(:acts_as_taggable)
      @resource.acts_as_taggable.each do |field|
        tagged_records = @records.tagged_with(@params[:search].downcase)
        condition = acts_as_taggable_query(tagged_records)
        conditions << condition if condition
      end
    end

    if (@params['searchExtended'].to_i == 1)
      SchemaUtils.one_associations(@resource).map(&:name).each do |association|
        if @collection.search_fields
          association_search = @collection.search_fields.map do |field|
            if field.include?('.') && field.split('.')[0] == association.to_s
              field.split('.')[1]
            end
          end
          association_search = association_search.compact
        end
        if @includes.include? association.to_sym
          resource = @resource.reflect_on_association(association.to_sym)
          resource.klass.columns.each do |column|
            if !(column.respond_to?(:array) && column.array) &&
              (column.type == :string || column.type == :text)
              column_name = format_column_name(resource.table_name,
                column.name)
              if @collection.search_fields.nil? || (association_search && association_search.include?(column.name))
                  conditions << "LOWER(#{column_name}) LIKE " +
                  "'%#{@params[:search].downcase}%'"
              end
            end
          end
        end
      end
    end

    @records = @resource.where(conditions.join(' OR '))
  end

  @records
end