Module: ClosureTree::SupportAttributes

Extended by:
Forwardable
Included in:
Support
Defined in:
lib/closure_tree/support_attributes.rb

Instance Method Summary collapse

Instance Method Details

#advisory_lock_name(instance = nil) ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 11

def advisory_lock_name(instance = nil)
  if options[:advisory_lock_name]
    case options[:advisory_lock_name]
    when Proc
      proc = options[:advisory_lock_name]
      proc.arity == 1 ? proc.call(base_class) : proc.call(base_class, instance)
    when Symbol
      if model_class.respond_to?(options[:advisory_lock_name])
        model_class.send(options[:advisory_lock_name])
      else
        raise ArgumentError, "Model #{model_class} does not respond to #{options[:advisory_lock_name]}"
      end
    else
      options[:advisory_lock_name].to_s
    end
  else
    "ct_#{Zlib.crc32(base_class.name.to_s).to_s(16)}"
  end
end

#advisory_lock_options ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 31

def advisory_lock_options
  { timeout_seconds: options[:advisory_lock_timeout_seconds] }.compact
end

#dont_order_roots ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 102

def dont_order_roots
  options[:dont_order_roots] || false
end

#hierarchy_class_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 43

def hierarchy_class_name
  options[:hierarchy_class_name] || "#{model_class}Hierarchy"
end

#name_column ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 63

def name_column
  options[:name_column]
end

#name_sym ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 67

def name_sym
  name_column.to_sym
end

#nulls_last_order_by ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 106

def nulls_last_order_by
  Arel.sql "-#{quoted_order_column} #{order_by_order(true)}"
end

#order_by ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 98

def order_by
  options[:order]
end

#order_by_order(reverse = false) ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 110

def order_by_order(reverse = false)
  desc = !(order_by.to_s =~ /DESC\z/).nil?
  desc = !desc if reverse
  desc ? 'DESC' : 'ASC'
end

#order_column ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 116

def order_column
  o = order_by
  if o.nil?
    nil
  elsif o.is_a?(String)
    o.split(' ', 2).first
  else
    o.to_s
  end
end

#order_column_sym ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 131

def order_column_sym
  require_order_column
  order_column.to_sym
end

#parent_column_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 55

def parent_column_name
  options[:parent_column_name]
end

#parent_column_sym ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 59

def parent_column_sym
  parent_column_name.to_sym
end

#primary_key_column ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 47

def primary_key_column
  model_class.columns.detect { |ea| ea.name == model_class.primary_key }
end

#primary_key_type ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 51

def primary_key_type
  primary_key_column.type
end

#quoted_hierarchy_table_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 82

def quoted_hierarchy_table_name
  connection.quote_table_name hierarchy_table_name
end

#quoted_id_column_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 86

def quoted_id_column_name
  connection.quote_column_name model_class.primary_key
end

#quoted_name_column ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 94

def quoted_name_column
  connection.quote_column_name name_column
end

#quoted_order_column(include_table_name = true) ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 136

def quoted_order_column(include_table_name = true)
  require_order_column
  prefix = include_table_name ? "#{quoted_table_name}." : ''
  "#{prefix}#{connection.quote_column_name(order_column)}"
end

#quoted_parent_column_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 90

def quoted_parent_column_name
  connection.quote_column_name parent_column_name
end

#quoted_table_name ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 35

def quoted_table_name
  connection.quote_table_name(table_name)
end

#quoted_value(value) ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 39

def quoted_value(value)
  value.is_a?(Numeric) ? value : quote(value)
end

#require_order_column ⇒ Object 



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# File 'lib/closure_tree/support_attributes.rb', line 127

def require_order_column
  raise ":order value, '#{options[:order]}', isn't a column" if order_column.nil?
end

#short_hierarchy_class_name ⇒ String

Returns the constant name of the hierarchy_class

Examples:

Namespace::Model.hierarchy_class_name # => "Namespace::ModelHierarchy"
Namespace::Model.short_hierarchy_class_name # => "ModelHierarchy"

Returns:

  • (String) —

    the constant name



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# File 'lib/closure_tree/support_attributes.rb', line 78

def short_hierarchy_class_name
  hierarchy_class_name.split('::').last
end

#t_alias_keyword ⇒ Object

table_name alias keyword , like “AS”. When used on table name alias, Oracle Database don’t support used ‘AS’



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# File 'lib/closure_tree/support_attributes.rb', line 143

def t_alias_keyword
  ActiveRecord::Base.connection.adapter_name.to_sym == :OracleEnhanced ? '' : 'AS'
end