Class: Effective::DatatableValueTool

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

Overview

The collection is an Array of Arrays

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(datatable) ⇒ DatatableValueTool

Returns a new instance of DatatableValueTool.



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

def initialize(datatable)
  @datatable = datatable

  if datatable.array_collection?
    @columns = datatable.columns
  else
    @columns = datatable.columns.select { |_, col| col[:sql_column].blank? }
  end
end

Instance Attribute Details

#columns ⇒ Object (readonly)

Returns the value of attribute columns.



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# File 'app/models/effective/datatable_value_tool.rb', line 5

def columns
  @columns
end

#datatable ⇒ Object (readonly)

Returns the value of attribute datatable.



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# File 'app/models/effective/datatable_value_tool.rb', line 4

def datatable
  @datatable
end

Instance Method Details

#obj_to_value(obj, column, row = nil) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 170

def obj_to_value(obj, column, row = nil)
  return obj if column[:compute]

  # This matches format.rb.  Probably should be refactored.

  if column[:format]
    datatable.dsl_tool.instance_exec(obj, row, &column[:format])
  elsif column[:partial]
    obj.to_s
  elsif obj.respond_to?(column[:name])
    obj.send(column[:name])
  elsif column[:as] == :time && obj.respond_to?(:strftime)
    (@_column_as_time ||= Time.zone.now.beginning_of_day) + ((1.hour * obj.hour) + (1.minute * obj.min)) # For search/order by time
  else
    obj
  end
end

#order(collection) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 25

def order(collection)
  return collection unless ordered.present?

  collection = if ordered[:sort_method]
    datatable.dsl_tool.instance_exec(collection, datatable.order_direction, ordered, ordered[:index], &ordered[:sort_method])
  else
    order_column(collection, datatable.order_direction, ordered, ordered[:index])
  end

  raise 'sort method must return an Array' unless collection.kind_of?(Array)

  collection
end

#order_column(collection, direction, column, index) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 39

def order_column(collection, direction, column, index)
  Rails.logger.info "VALUE TOOL: order_column :#{column.to_s} :#{direction} #{index}" if EffectiveDatatables.debug

  if direction == :asc
    collection.sort! do |x, y|
      x = obj_to_value(x[index], column)
      y = obj_to_value(y[index], column)

      x <=> y || x.to_s <=> y.to_s || 0
    end
  else
    collection.sort! do |x, y|
      x = obj_to_value(x[index], column)
      y = obj_to_value(y[index], column)

      y <=> x || y.to_s <=> x.to_s || 0
    end
  end

  collection
end

#ordered ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 21

def ordered
  @ordered ||= columns[datatable.order_name]
end

#paginate(collection) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 159

def paginate(collection)
  page = [datatable.page.to_i - 1, 0].max
  per_page = datatable.per_page.to_i

  collection[(page * per_page)...((page * per_page) + per_page)]
end

#search(collection) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 61

def search(collection)
  searched.each do |name, value|
    column = columns[name]

    collection = if column[:search_method]
      datatable.dsl_tool.instance_exec(collection, value, column, column[:index], &column[:search_method])
    else
      search_column(collection, value, column, column[:index])
    end

    raise 'search method must return an Array object' unless collection.kind_of?(Array)
  end

  collection
end

#search_column(collection, original, column, index) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 77

def search_column(collection, original, column, index)
  Rails.logger.info "VALUE TOOL: search_column #{column.to_s} #{original} #{index}" if EffectiveDatatables.debug

  fuzzy = column[:search][:fuzzy]

  term = Effective::Attribute.new(column[:as]).parse(original, name: column[:name])
  term_downcased = term.to_s.downcase

  # term == 'nil' rescue false is a Rails 4.1 fix, where you can't compare a TimeWithZone to 'nil'
  if (term == 'nil' rescue false)
    return collection.select! { |row| obj_to_value(row[index], column, row) == nil } || collection
  end

  # See effective_resources gem search() method # relation.rb
  collection.select! do |row|
    obj = row[index]
    value = obj_to_value(row[index], column, row)

    case column[:as]
    when :boolean
      if fuzzy
        term ? (obj == true) : (obj != true)
      else
        obj == term
      end
    when :datetime, :date
      end_at = (
        case (original.to_s.scan(/(\d+)/).flatten).length
        when 1 ; term.end_of_year     # Year
        when 2 ; term.end_of_month    # Year-Month
        when 3 ; term.end_of_day      # Year-Month-Day
        when 4 ; term.end_of_hour     # Year-Month-Day Hour
        when 5 ; term.end_of_minute   # Year-Month-Day Hour-Minute
        when 6 ; term + 1.second      # Year-Month-Day Hour-Minute-Second
        else term
        end
      )
      value >= term && value <= end_at
    when :time
      (value.hour == term.hour) && (term.min == 0 ? true : (value.min == term.min))
    when :decimal, :currency
      if fuzzy && (term.round(0) == term) && original.to_s.include?('.') == false
        if term < 0
          value <= term && value > (term - 1.0)
        else
          value >= term && value < (term + 1.0)
        end
      else
        value == term
      end
    when :duration
      if fuzzy && (term % 60 == 0) && original.to_s.include?('m') == false
        if term < 0
          value <= term && value > (term - 60)
        else
          value >= term && value < (term + 60)
        end
      else
        value == term
      end
    when *datatable.association_macros, :resource
      Array(obj).any? do |resource|
        Array(term).any? do |term|
          matched = false

          if term.kind_of?(Integer) && resource.respond_to?(:id) && resource.respond_to?(:to_param)
            matched = (resource.id == term || resource.to_param == term)
          end

          matched ||= (fuzzy ? resource.to_s.downcase.include?(term.to_s.downcase) : resource.to_s == term)
        end
      end
    else  # :string, :text, :email
      if fuzzy
        value.to_s.downcase.include?(term_downcased)
      else
        value == term || (value.to_s == term.to_s)
      end
    end
  end || collection
end

#searched ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 17

def searched
  @searched ||= datatable.search.select { |name, _| columns.key?(name) }
end

#size(collection) ⇒ Object 



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# File 'app/models/effective/datatable_value_tool.rb', line 166

def size(collection)
  collection.size
end