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authorMingdong Luo <mdluo@nsmss.com>2015-01-31 19:23:48 -0800
committerMingdong Luo <mdluo@nsmss.com>2015-01-31 19:23:48 -0800
commit549d171a90135999e3c670f489494b7a39dd6dd7 (patch)
tree233466527b797fe3ea7c6a7a3673795cea28aebe /activerecord/lib/active_record/type/integer.rb
parentc840b18ac31a852d99ff760229f2c087b6961727 (diff)
parent70ac072976c8cc6f013f0df3777e54ccae3f4f8c (diff)
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Merge branch 'master' into pr/18316
Conflicts: activerecord/CHANGELOG.md
Diffstat (limited to 'activerecord/lib/active_record/type/integer.rb')
-rw-r--r--activerecord/lib/active_record/type/integer.rb22
1 files changed, 15 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/type/integer.rb b/activerecord/lib/active_record/type/integer.rb
index fc260a081a..90ca9f88da 100644
--- a/activerecord/lib/active_record/type/integer.rb
+++ b/activerecord/lib/active_record/type/integer.rb
@@ -3,6 +3,10 @@ module ActiveRecord
class Integer < Value # :nodoc:
include Numeric
+ # Column storage size in bytes.
+ # 4 bytes means a MySQL int or Postgres integer as opposed to smallint etc.
+ DEFAULT_LIMIT = 4
+
def initialize(*)
super
@range = min_value...max_value
@@ -12,13 +16,19 @@ module ActiveRecord
:integer
end
- alias type_cast_for_database type_cast
-
def type_cast_from_database(value)
return if value.nil?
value.to_i
end
+ def type_cast_for_database(value)
+ result = type_cast(value)
+ if result
+ ensure_in_range(result)
+ end
+ result
+ end
+
protected
attr_reader :range
@@ -30,20 +40,18 @@ module ActiveRecord
when true then 1
when false then 0
else
- result = value.to_i rescue nil
- ensure_in_range(result) if result
- result
+ value.to_i rescue nil
end
end
def ensure_in_range(value)
unless range.cover?(value)
- raise RangeError, "#{value} is out of range for #{self.class} with limit #{limit || 4}"
+ raise RangeError, "#{value} is out of range for #{self.class} with limit #{limit || DEFAULT_LIMIT}"
end
end
def max_value
- limit = self.limit || 4
+ limit = self.limit || DEFAULT_LIMIT
1 << (limit * 8 - 1) # 8 bits per byte with one bit for sign
end