Sha256: 00f54f5876c725b56b0a0840acc66a43e50f50045cea051d04c481b1fa1d20bc
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Versions: 27
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Stored size: 1.26 KB
Contents
# frozen_string_literal: true
class MiniDefender::Rules::Unique < MiniDefender::Rule
def initialize(model, column = nil)
unless model.is_a?(String) || model.is_a?(Class) && model.ancestors.include?(ActiveRecord::Base)
raise ArgumentError, 'model name must be a string or ActiveRecord::Base'
end
raise ArgumentError, 'Column name must be a string' unless column.is_a?(String) || column.nil?
@model = model
@model = @model.camelcase.constantize if model.is_a?(String)
@column = column
@ignore = nil
@additional_scope = nil
end
def self.signature
'unique'
end
def should_ignore(value)
@ignore = value
self
end
def scope_by(callback)
@additional_scope = callback
self
end
def self.make(args)
raise ArgumentError, 'Model and column are required.' unless args.length == 2
self.new(args[0], args[1])
end
def passes?(attribute, value, validator)
@column = attribute.split('.')[-1] if @column.nil?
query = @model.where(@column => value)
query = @additional_scope.call(query) unless @additional_scope.nil?
query = query.where.not(@column => @ignore) unless @ignore.nil?
!query.exists?
end
def message(attribute, value, validator)
"The value already exists."
end
end
Version data entries
27 entries across 27 versions & 1 rubygems