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util/types: support convert year #10

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merged 4 commits into from
Sep 6, 2015
Merged

util/types: support convert year #10

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be56437
util/types: support convert year
coocood Sep 6, 2015
0054f81
util/types: address comments
coocood Sep 6, 2015
97ea35c
util/convert: convert year handle case mysql.Time
coocood Sep 6, 2015
b595679
util/types: handle convert year from duration
coocood Sep 6, 2015
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21 changes: 21 additions & 0 deletions util/types/convert.go
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,27 @@ func Convert(val interface{}, target *FieldType) (v interface{}, err error) { //
}
// TODO: check Flen
return x, nil
case mysql.TypeYear:
var (
intVal int64
err error
)
switch x := val.(type) {
case string:
intVal, err = StrToInt(x)
case mysql.Time:
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mysql.Duration will use current year.

return int16(x.Year()), nil
default:
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mysql> insert into t select cast("2015-11-11 11:11:11" as datetime);
Query OK, 1 row affected (0.01 sec)
Records: 1 Duplicates: 0 Warnings: 0

I think you should support time type separately. ToInt64 will not work for time type.

intVal, err = ToInt64(x)
}
if err != nil {
return InvConv(val, tp)
}
y, err := mysql.AdjustYear(int(intVal))
if err != nil {
return InvConv(val, tp)
}
return int16(y), nil
default:
panic("should never happen")
}
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15 changes: 15 additions & 0 deletions util/types/convert_test.go
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Expand Up @@ -153,6 +153,21 @@ func (s *testTypeConvertSuite) TestConvertType(c *C) {
v, err = Convert(3.1415926, ft)
c.Assert(err, IsNil)
c.Assert(v.(mysql.Decimal).String(), Equals, "3.14159")

// For TypeYear
ft = NewFieldType(mysql.TypeYear)
v, err = Convert("2015-11-11", ft)
c.Assert(err, IsNil)
c.Assert(v, Equals, int16(2015))
v, err = Convert(2015, ft)
c.Assert(err, IsNil)
c.Assert(v, Equals, int16(2015))
v, err = Convert(1800, ft)
c.Assert(err, NotNil)
dt, err := mysql.ParseDate("2015-11-11")
c.Assert(err, IsNil)
v, err = Convert(dt, ft)
c.Assert(v, Equals, int16(2015))
}

func testToInt64(c *C, val interface{}, expect int64) {
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