Class: WhoAmI::TableColumnInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/who_am_i/table_column_info.rb

Instance Method Summary collapse

Constructor Details

#initialize(table_name:, column:) ⇒ TableColumnInfo

Returns a new instance of TableColumnInfo.



3
4
5
6
 
# File 'lib/who_am_i/table_column_info.rb', line 3

def initialize(table_name:, column:)
  @column = column
  @primary_key = ActiveRecord::Base.get_primary_key(@table_name)
end

Instance Method Details

#attributes ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/who_am_i/table_column_info.rb', line 16

def attributes
  @attributes ||=
    begin
      attrs = [
        not_null? && "not null",
        primary_key? && "primary key",
        default,
      ]

      attrs.select { |attr| attr }
    end
end

#default ⇒ Object 



44
45
46
47
48
 
# File 'lib/who_am_i/table_column_info.rb', line 44

def default
  if @column.default
    "default (#{@column.default})"
  end
end

#name ⇒ Object 



8
9
10
 
# File 'lib/who_am_i/table_column_info.rb', line 8

def name
  @column.name
end

#not_null? ⇒ Boolean

Returns:

  • (Boolean) 


40
41
42
 
# File 'lib/who_am_i/table_column_info.rb', line 40

def not_null?
  !@column.null
end

#primary_key? ⇒ Boolean

Returns:

  • (Boolean) 


29
30
31
32
33
34
35
36
37
38
 
# File 'lib/who_am_i/table_column_info.rb', line 29

def primary_key?
  case @primary_key
  when Array
    @primary_key.include?(name)
  when String
    @primary_key == name
  else
    false
  end
end

#type ⇒ Object 



12
13
14
 
# File 'lib/who_am_i/table_column_info.rb', line 12

def type
  @column.type.to_s
end