class Nandi::Validation::AddColumnValidator
Attributes
instruction[R]
Public Class Methods
call(instruction)
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# File lib/nandi/validation/add_column_validator.rb, line 10 def self.call(instruction) new(instruction).call end
new(instruction)
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# File lib/nandi/validation/add_column_validator.rb, line 14 def initialize(instruction) @instruction = instruction end
Public Instance Methods
call()
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# File lib/nandi/validation/add_column_validator.rb, line 18 def call collect_errors( assert(nullable? || default_value?, "add_column: non-null column lacks default"), assert(!unique?, "add_column: column is unique"), ) end
Private Instance Methods
default_value?()
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# File lib/nandi/validation/add_column_validator.rb, line 30 def default_value? !instruction.extra_args[:default].nil? end
nullable?()
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# File lib/nandi/validation/add_column_validator.rb, line 34 def nullable? instruction.extra_args.fetch(:null, true) end
unique?()
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# File lib/nandi/validation/add_column_validator.rb, line 38 def unique? instruction.extra_args.fetch(:unique, false) end