Class: Mensa::Column

Inherits:
Object
  • Object
show all
Includes:
ConfigReaders
Defined in:
app/tables/mensa/column.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, config:, table:) ⇒ Column

Returns a new instance of Column.



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# File 'app/tables/mensa/column.rb', line 11

def initialize(name, config:, table:)
  @name = name
  @config = self.class.definition.merge(config || {})
  @table = table
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'app/tables/mensa/column.rb', line 9

def name
  @name
end

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'app/tables/mensa/column.rb', line 9

def table
  @table
end

Instance Method Details

#active_record_column ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 59

def active_record_column
  @active_record_column ||= table.model&.columns&.find { |column| column.name == name.to_s }
end

#active_record_column_type ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 63

def active_record_column_type
  active_record_column&.type
end

#attribute ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 39

def attribute
  return @attribute if @attribute

  @attribute = if config[:attribute].present?
    "#{config[:attribute]} AS #{name}"
  elsif table.model.column_names.include? name.to_s
    "#{table.model.table_name}.#{name}"
  end
end

#attribute_for_condition ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 71

def attribute_for_condition
  return @attribute_for_condition if @attribute_for_condition

  @attribute_for_condition = if config[:attribute].present?
    raw_attribute
  elsif table.model.column_names.include? name.to_s
    "#{table.model.table_name}.#{name}"
  end
end

#filter ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 86

def filter
  return unless filter?

  @filter ||= Mensa::Filter.new(column: self, config: table.config.dig(:columns, name, :filter) || {}, table: table)
end

#filter? ⇒ Boolean

Returns true if the column supports filtering

Returns:

  • (Boolean) 


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# File 'app/tables/mensa/column.rb', line 82

def filter?
  config[:filter] != false
end

#format ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 92

def format
  @format ||= Mensa::Format.new(config: config.dig(:format).presence || {}, column: self)
end

#human_name ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 96

def human_name
  if table.model < ActiveRecord::Base
    table.model.human_attribute_name name
  else
    name.to_s.humanize
  end
end

#next_sort_direction ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 29

def next_sort_direction
  if sort_direction == :asc
    :desc
  elsif sort_direction == :desc
    nil
  else
    :asc
  end
end

#raw_attribute ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 49

def raw_attribute
  return @raw_attribute if @raw_attribute

  @raw_attribute = if config[:attribute].present?
    config[:attribute]
  elsif table.model.column_names.include? name.to_s
    "#{table.model.table_name}.#{name}"
  end
end

#sort_direction ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 24

def sort_direction
  value = table.config.dig(:order, name)
  value.presence&.to_sym
end

#type ⇒ Object 



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# File 'app/tables/mensa/column.rb', line 67

def type
  config[:type] || active_record_column_type
end