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author | Rizwan Reza <rizwanreza@gmail.com> | 2010-03-28 12:04:00 +0430 |
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committer | Rizwan Reza <rizwanreza@gmail.com> | 2010-03-28 12:04:00 +0430 |
commit | b4c91de9462f59d6395c7c871aafa3301afdc383 (patch) | |
tree | fadcaf603a6f473e8ccd52070a1f3b4f957c34cb /activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb | |
parent | 4b4f69b9bfbd33556e23262f57cf6d944dfd9f63 (diff) | |
parent | 66d57d7ba83df52ff1e0485c89f6192c2f84c6b8 (diff) | |
download | rails-b4c91de9462f59d6395c7c871aafa3301afdc383.tar.gz rails-b4c91de9462f59d6395c7c871aafa3301afdc383.tar.bz2 rails-b4c91de9462f59d6395c7c871aafa3301afdc383.zip |
Merge remote branch 'rails/master'
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb')
-rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index abb695264e..0c87e052c4 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -181,6 +181,29 @@ module ActiveRecord # done if the transaction block raises an exception or returns false. def rollback_db_transaction() end + # Appends +LIMIT+ and +OFFSET+ options to an SQL statement, or some SQL + # fragment that has the same semantics as LIMIT and OFFSET. + # + # +options+ must be a Hash which contains a +:limit+ option + # and an +:offset+ option. + # + # This method *modifies* the +sql+ parameter. + # + # ===== Examples + # add_limit_offset!('SELECT * FROM suppliers', {:limit => 10, :offset => 50}) + # generates + # SELECT * FROM suppliers LIMIT 10 OFFSET 50 + + def add_limit_offset!(sql, options) + if limit = options[:limit] + sql << " LIMIT #{sanitize_limit(limit)}" + end + if offset = options[:offset] + sql << " OFFSET #{offset.to_i}" + end + sql + end + def default_sequence_name(table, column) nil end |