gistfile1.txt

** Execute db:autoupgrade
rake aborted!
Access denied for user ''@'localhost' to database 'abc_dev' (mysql_error_code=-001)
/Library/Ruby/Gems/1.8/gems/data_objects-0.9.6/lib/data_objects/connection.rb:26:in `initialize'
/Library/Ruby/Gems/1.8/gems/data_objects-0.9.6/lib/data_objects/connection.rb:26:in `send'
/Library/Ruby/Gems/1.8/gems/data_objects-0.9.6/lib/data_objects/connection.rb:26:in `__new'
/Library/Ruby/Gems/1.8/gems/extlib-0.9.8/lib/extlib/pooling.rb:161:in `new'
/Library/Ruby/Gems/1.8/gems/extlib-0.9.8/lib/extlib/pooling.rb:156:in `synchronize'
/Library/Ruby/Gems/1.8/gems/extlib-0.9.8/lib/extlib/pooling.rb:156:in `new'
/Library/Ruby/Gems/1.8/gems/extlib-0.9.8/lib/extlib/pooling.rb:107:in `new'
/Library/Ruby/Gems/1.8/gems/data_objects-0.9.6/lib/data_objects/connection.rb:18:in `new'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:147:in `create_connection'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:170:in `with_connection'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:181:in `with_reader'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:97:in `query'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/mysql_adapter.rb:48:in `storage_exists?'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:452:in `create_model_storage'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/adapters/data_objects_adapter.rb:433:in `upgrade_model_storage'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/auto_migrations.rb:107:in `auto_upgrade!'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/model.rb:113:in `repository'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core.rb:181:in `repository'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/repository.rb:44:in `scope'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core.rb:181:in `repository'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/model.rb:113:in `repository'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/auto_migrations.rb:106:in `auto_upgrade!'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/auto_migrations.rb:51:in `auto_upgrade'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/set.rb:189:in `each'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/set.rb:189:in `each_key'
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/set.rb:189:in `each'
/Library/Ruby/Gems/1.8/gems/dm-core-0.9.6/lib/dm-core/auto_migrations.rb:50:in `auto_upgrade'
/Library/Ruby/Gems/1.8/gems/merb_datamapper-0.9.10/lib/merb_datamapper/merbtasks.rb:23
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in `call'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:546:in `execute'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:541:in `execute'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:508:in `invoke_with_call_chain'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in `synchronize'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:501:in `invoke_with_call_chain'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:494:in `invoke'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1931:in `invoke_task'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in `each'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1909:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1903:in `top_level'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1881:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1948:in `standard_exception_handling'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/lib/rake.rb:1878:in `run'
/Library/Ruby/Gems/1.8/gems/rake-0.8.1/bin/rake:31
/usr/bin/rake:19:in `load'
/usr/bin/rake:19

gistfile2.txt

Felix:abc sunfmin$ merb -i
Loading init file from /Users/sunfmin/Developments/abc/config/init.rb
Loading /Users/sunfmin/Developments/abc/config/environments/development.rb
 ~ No database.yml file found in /Users/sunfmin/Developments/abc/config, assuming database connection(s) established in the environment file in /Users/sunfmin/Developments/abc/config/environments
 ~ Parent pid: 1456
 ~ Compiling routes...
 ~ Could not find resource model InplaceEditor
irb: warn: can't alias context from irb_context.
>> DataMapper::Repository.adapters[:default]
=> #<DataMapper::Adapters::MysqlAdapter:0x1b6d860 @transactions={}, @git_config={:local=>"/git_abc_dev", :increment_offset=>1, :as_url=>"ssh://felix.local/git_abc_dev"}, @name=:default, @field_naming_convention=DataMapper::NamingConventions::Field::Underscored, @resource_naming_convention=DataMapper::NamingConventions::Resource::UnderscoredAndPluralized, @uri=#<struct DataObjects::URI scheme="mysql", user="abc", password=nil, host="localhost", port=nil, specified_port=nil, path="/abc_dev", query=nil, fragment=nil>>
>> 

user is there

why

Access denied for user ''@'localhost' to database 'abc_dev' (mysql_error_code=-001)

Means even you set your user name in datamapper, But that user does not exist in MySql

By showing:
Access denied for user 'abc'@'localhost' to database 'abc_dev' (mysql_error_code=-001)
is much more clear.