52 lines
1.7 KiB
Ruby
52 lines
1.7 KiB
Ruby
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module ActiveRecord
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module ConnectionAdapters # :nodoc:
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module Quoting
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# Quotes the column value to help prevent
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# {SQL injection attacks}[http://en.wikipedia.org/wiki/SQL_injection].
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def quote(value, column = nil)
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case value
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when String
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if column && column.type == :binary && column.class.respond_to?(:string_to_binary)
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"'#{quote_string(column.class.string_to_binary(value))}'" # ' (for ruby-mode)
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elsif column && [:integer, :float].include?(column.type)
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value.to_s
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else
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"'#{quote_string(value)}'" # ' (for ruby-mode)
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end
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when NilClass then "NULL"
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when TrueClass then (column && column.type == :integer ? '1' : quoted_true)
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when FalseClass then (column && column.type == :integer ? '0' : quoted_false)
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when Float, Fixnum, Bignum then value.to_s
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when Date then "'#{value.to_s}'"
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when Time, DateTime then "'#{quoted_date(value)}'"
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else "'#{quote_string(value.to_yaml)}'"
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end
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end
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# Quotes a string, escaping any ' (single quote) and \ (backslash)
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# characters.
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def quote_string(s)
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s.gsub(/\\/, '\&\&').gsub(/'/, "''") # ' (for ruby-mode)
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end
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# Returns a quoted form of the column name. This is highly adapter
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# specific.
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def quote_column_name(name)
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name
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end
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def quoted_true
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"'t'"
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end
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def quoted_false
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"'f'"
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end
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def quoted_date(value)
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value.strftime("%Y-%m-%d %H:%M:%S")
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end
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end
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end
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end
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