Class: Effective::ActiveRecordDatatableTool

Inherits:
Object
  • Object
show all
Defined in:
app/models/effective/active_record_datatable_tool.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(datatable, table_columns) ⇒ ActiveRecordDatatableTool

Returns a new instance of ActiveRecordDatatableTool.



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# File 'app/models/effective/active_record_datatable_tool.rb', line 7

def initialize(datatable, table_columns)
  @datatable = datatable
  @table_columns = table_columns
end

Instance Attribute Details

#table_columns ⇒ Object

Returns the value of attribute table_columns.



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# File 'app/models/effective/active_record_datatable_tool.rb', line 3

def table_columns
  @table_columns
end

Instance Method Details

#order(collection) ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 20

def order(collection)
  if order_column.present?
    collection.order("#{order_column[:column]} #{order_direction} NULLS #{order_direction == 'ASC' ? 'LAST' : 'FIRST'}")
  else
    collection
  end
end

#order_column ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 12

def order_column
  @order_column ||= table_columns.find { |_, values| values[:index] == order_column_index }.try(:second) # This pulls out the values
end

#paginate(collection) ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 88

def paginate(collection)
  collection.page(page).per(per_page)
end

#search(collection) ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 28

def search(collection)
  search_terms.each do |name, search_term|
    column_search = search_column(collection, table_columns[name], search_term)
    raise 'search_column must return an ActiveRecord::Relation object' unless column_search.kind_of?(ActiveRecord::Relation)
    collection = column_search
  end
  collection
end

#search_column_with_defaults(collection, table_column, term) ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 37

def search_column_with_defaults(collection, table_column, term)
  column = table_column[:column]

  case table_column[:type]
  when :string, :text
    if table_column[:filter][:type] == :select && table_column[:filter][:fuzzy] != true
      collection.where("#{column} = :term", :term => term)
    else
      collection.where("#{column} ILIKE :term", :term => "%#{term}%")
    end
  when :datetime
    begin
      digits = term.scan(/(\d+)/).flatten.map(&:to_i)
      start_at = Time.zone.local(*digits)

      case digits.length
      when 1  # Year
        end_at = start_at.end_of_year
      when 2 # Year-Month
        end_at = start_at.end_of_month
      when 3 # Year-Month-Day
        end_at = start_at.end_of_day
      when 4 # Year-Month-Day Hour
        end_at = start_at.end_of_hour
      when 5 # Year-Month-Day Hour-Minute
        end_at = start_at.end_of_minute
      when 6
        end_at = start_at + 1.second
      else
        end_at = start_at
      end

      collection.where("#{column} >= :start_at AND #{column} <= :end_at", :start_at => start_at, :end_at => end_at)
    rescue => e
      collection
    end
  when :obfuscated_id
    if (deobfuscated_id = collection.deobfuscate(term)) == term # We weren't able to deobfuscate it, so this is an Invalid ID
      collection.where("#{column} = :term", :term => 0)
    else
      collection.where("#{column} = :term", :term => deobfuscated_id)
    end
  when :integer
    collection.where("#{column} = :term", :term => term.to_i)
  when :year
    collection.where("EXTRACT(YEAR FROM #{column}) = :term", :term => term.to_i)
  else
    collection.where("#{column} = :term", :term => term)
  end
end

#search_terms ⇒ Object 



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# File 'app/models/effective/active_record_datatable_tool.rb', line 16

def search_terms
  @search_terms ||= @datatable.search_terms.select { |name, search_term| table_columns.key?(name) }
end