diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/calculations.rb | 14 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb | 22 |
2 files changed, 19 insertions, 17 deletions
diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb index fec9bee38f..10e8330d1c 100644 --- a/activerecord/lib/active_record/calculations.rb +++ b/activerecord/lib/active_record/calculations.rb @@ -245,12 +245,14 @@ module ActiveRecord options.assert_valid_keys(CALCULATIONS_OPTIONS) end - # Converts a given key to the value that the database adapter returns as - # a usable column name. - # users.id #=> users_id - # sum(id) #=> sum_id - # count(distinct users.id) #=> count_distinct_users_id - # count(*) #=> count_all + # Converts the given keys to the value that the database adapter returns as + # a usable column name: + # + # column_alias_for("users.id") # => "users_id" + # column_alias_for("sum(id)") # => "sum_id" + # column_alias_for("count(distinct users.id)") # => "count_distinct_users_id" + # column_alias_for("count(*)") # => "count_all" + # column_alias_for("count", "id") # => "count_id" def column_alias_for(*keys) connection.table_alias_for(keys.join(' ').downcase.gsub(/\*/, 'all').gsub(/\W+/, ' ').strip.gsub(/ +/, '_')) end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb index 18f1175f5f..e4e950d481 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -92,7 +92,7 @@ module ActiveRecord # Returns the human name of the column name. # # ===== Examples - # Column.new('sales_stage', ...).human_name #=> 'Sales stage' + # Column.new('sales_stage', ...).human_name # => 'Sales stage' def human_name Base.human_attribute_name(@name) end @@ -350,28 +350,28 @@ module ActiveRecord # == Examples # # Assuming td is an instance of TableDefinition # td.column(:granted, :boolean) - # #=> granted BOOLEAN + # # granted BOOLEAN # # td.column(:picture, :binary, :limit => 2.megabytes) - # #=> picture BLOB(2097152) + # # => picture BLOB(2097152) # # td.column(:sales_stage, :string, :limit => 20, :default => 'new', :null => false) - # #=> sales_stage VARCHAR(20) DEFAULT 'new' NOT NULL + # # => sales_stage VARCHAR(20) DEFAULT 'new' NOT NULL # - # def.column(:bill_gates_money, :decimal, :precision => 15, :scale => 2) - # #=> bill_gates_money DECIMAL(15,2) + # td.column(:bill_gates_money, :decimal, :precision => 15, :scale => 2) + # # => bill_gates_money DECIMAL(15,2) # - # def.column(:sensor_reading, :decimal, :precision => 30, :scale => 20) - # #=> sensor_reading DECIMAL(30,20) + # td.column(:sensor_reading, :decimal, :precision => 30, :scale => 20) + # # => sensor_reading DECIMAL(30,20) # # # While <tt>:scale</tt> defaults to zero on most databases, it # # probably wouldn't hurt to include it. - # def.column(:huge_integer, :decimal, :precision => 30) - # #=> huge_integer DECIMAL(30) + # td.column(:huge_integer, :decimal, :precision => 30) + # # => huge_integer DECIMAL(30) # # == Short-hand examples # - # Instead of calling column directly, you can also work with the short-hand definitions for the default types. + # Instead of calling +column+ directly, you can also work with the short-hand definitions for the default types. # They use the type as the method name instead of as a parameter and allow for multiple columns to be defined # in a single statement. # |