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| author | José Valim <jose.valim@gmail.com> | 2010-11-14 16:22:21 +0100 |
|---|---|---|
| committer | José Valim <jose.valim@gmail.com> | 2010-11-14 16:22:21 +0100 |
| commit | fae4264a7efe2df4890b5f1095bd7454e3bcb939 (patch) | |
| tree | 71393853de1f305f7d8dcd135e9519ac71a2bde1 /railties/guides/source | |
| parent | 88688cdd8e467d4bdebfa3f08e47cd5e7c5ead2c (diff) | |
| download | rails-fae4264a7efe2df4890b5f1095bd7454e3bcb939.tar.gz rails-fae4264a7efe2df4890b5f1095bd7454e3bcb939.tar.bz2 rails-fae4264a7efe2df4890b5f1095bd7454e3bcb939.zip | |
Update the guides.
Diffstat (limited to 'railties/guides/source')
| -rw-r--r-- | railties/guides/source/active_support_core_extensions.textile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/railties/guides/source/active_support_core_extensions.textile b/railties/guides/source/active_support_core_extensions.textile index 8c11b2a11a..dc1200812e 100644 --- a/railties/guides/source/active_support_core_extensions.textile +++ b/railties/guides/source/active_support_core_extensions.textile @@ -167,6 +167,12 @@ def log_info(sql, name, ms) end </ruby> ++try+ can also be called without arguments but a block, which will only be executed if the object is not nil: + +<ruby> +@person.try { |p| "#{p.first_name} #{p.last_name}" } +</ruby> + NOTE: Defined in +active_support/core_ext/object/try.rb+. h4. +singleton_class+ |