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module ActiveRecord
module ConnectionAdapters
module MySQL
class Column < ConnectionAdapters::Column # :nodoc:
delegate :strict, :extra, to: :sql_type_metadata, allow_nil: true
def initialize(*)
super
extract_default
end
def has_default?
return false if blob_or_text_column? # MySQL forbids defaults on blob and text columns
super
end
def blob_or_text_column?
/\A(?:tiny|medium|long)?blob\b/ === sql_type || type == :text
end
def unsigned?
/\bunsigned\z/ === sql_type
end
def case_sensitive?
collation && collation !~ /_ci\z/
end
def auto_increment?
extra == "auto_increment"
end
private
def extract_default
if blob_or_text_column?
@default = null || strict ? nil : ""
end
end
end
end
end
end
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