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| author | Jon Leighton <j@jonathanleighton.com> | 2012-09-28 17:55:35 +0100 |
|---|---|---|
| committer | Jon Leighton <j@jonathanleighton.com> | 2012-09-28 18:08:14 +0100 |
| commit | 144e8691cbfb8bba77f18cfe68d5e7fd48887f5e (patch) | |
| tree | 161fc7cc2f7d1905c5ae6a9f761f65fd520116be /activerecord/lib/active_record/connection_adapters/column.rb | |
| parent | f9c63ad56da541fa8fc007c01de64ed623053fd2 (diff) | |
| download | rails-144e8691cbfb8bba77f18cfe68d5e7fd48887f5e.tar.gz rails-144e8691cbfb8bba77f18cfe68d5e7fd48887f5e.tar.bz2 rails-144e8691cbfb8bba77f18cfe68d5e7fd48887f5e.zip | |
Support for partial inserts.
When inserting new records, only the fields which have been changed
from the defaults will actually be included in the INSERT statement.
The other fields will be populated by the database.
This is more efficient, and also means that it will be safe to
remove database columns without getting subsequent errors in running
app processes (so long as the code in those processes doesn't
contain any references to the removed column).
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/column.rb')
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/column.rb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index 816b5e17c1..2028abf6f0 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -53,6 +53,10 @@ module ActiveRecord !default.nil? end + def explicit_default? + false + end + # Returns the Ruby class that corresponds to the abstract data type. def klass case type |