Class: ActiveRecord::Base
- Inherits:
-
Object
- Object
- ActiveRecord::Base
show all
- Defined in:
- lib/composite_primary_keys/base.rb,
lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb
Defined Under Namespace
Modules: CompositeClassMethods, CompositeInstanceMethods
Constant Summary
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- INVALID_FOR_COMPOSITE_KEYS =
'Not appropriate for composite primary keys'
- NOT_IMPLEMENTED_YET =
'Not implemented for composite primary keys yet'
Class Method Summary
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Instance Method Summary
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Class Method Details
.clear_active_connections! ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 59
def clear_active_connections!
connection_handler.clear_active_connections!
end
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.composite? ⇒ Boolean
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# File 'lib/composite_primary_keys/base.rb', line 51
def composite?
false
end
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.connected? ⇒ Boolean
Returns true if Active Record is connected.
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 51
def connected?
connection_handler.connected?(self)
end
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.connection ⇒ Object
Returns the connection currently associated with the class. This can also be used to “borrow” the connection to do database work unrelated to any of the specific Active Records.
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 28
def connection
retrieve_connection
end
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.connection_config ⇒ Object
Returns the configuration of the associated connection as a hash:
ActiveRecord::Base.connection_config
Please use only for reading.
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 38
def connection_config
connection_pool.spec.config
end
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.connection_pool ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 42
def connection_pool
connection_handler.retrieve_connection_pool(self)
end
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.establish_connection(spec = ENV["DATABASE_URL"]) ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 9
def self.establish_connection(spec = ENV["DATABASE_URL"])
resolver = ConnectionSpecification::Resolver.new spec, configurations
spec = resolver.spec
load_cpk_adapter(spec.config[:adapter])
unless respond_to?(spec.adapter_method)
raise AdapterNotFound, "database configuration specifies nonexistent #{spec.config[:adapter]} adapter"
end
remove_connection
connection_handler.establish_connection name, spec
end
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.load_cpk_adapter(adapter) ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 3
def self.load_cpk_adapter(adapter)
if (adapter.to_s =~ /postgresql/) or (adapter.to_s =~ /postgis/)
require "composite_primary_keys/connection_adapters/postgresql_adapter.rb"
end
end
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.primary_keys ⇒ Object
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# File 'lib/composite_primary_keys/base.rb', line 10
def primary_keys
unless defined?(@primary_keys)
reset_primary_keys
end
@primary_keys
end
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.primary_keys=(keys) ⇒ Object
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# File 'lib/composite_primary_keys/base.rb', line 24
def primary_keys=(keys)
unless keys.kind_of?(Array)
self.primary_key = keys
return
end
@primary_keys = keys.map { |k| k.to_s }.to_composite_keys
class_eval <<-EOV
extend CompositeClassMethods
include CompositeInstanceMethods
EOV
end
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.remove_connection(klass = self) ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 55
def remove_connection(klass = self)
connection_handler.remove_connection(klass)
end
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.reset_primary_keys ⇒ Object
Don’t like this method name, but its modeled after how AR does it
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# File 'lib/composite_primary_keys/base.rb', line 18
def reset_primary_keys
if self != base_class
self.primary_keys = base_class.primary_keys
end
end
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.retrieve_connection ⇒ Object
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# File 'lib/composite_primary_keys/connection_adapters/abstract/connection_specification_changes.rb', line 46
def retrieve_connection
connection_handler.retrieve_connection(self)
end
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.set_primary_keys(*keys) ⇒ Object
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# File 'lib/composite_primary_keys/base.rb', line 38
def set_primary_keys(*keys)
ActiveSupport::Deprecation.warn(
"Calling set_primary_keys is deprecated. Please use `self.primary_keys = keys` instead."
)
keys = keys.first if keys.first.is_a?(Array)
if keys.length == 1
self.primary_key = keys.first
else
self.primary_keys = keys
end
end
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Instance Method Details
#composite? ⇒ Boolean
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# File 'lib/composite_primary_keys/base.rb', line 56
def composite?
self.class.composite?
end
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#initialize_dup(other) ⇒ Object
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# File 'lib/composite_primary_keys/base.rb', line 60
def initialize_dup(other)
cloned_attributes = other.clone_attributes(:read_attribute_before_type_cast)
self.class.initialize_attributes(cloned_attributes, :serialized => false)
Array(self.class.primary_key).each {|key| cloned_attributes.delete(key.to_s)}
@attributes = cloned_attributes
_run_after_initialize_callbacks if respond_to?(:_run_after_initialize_callbacks)
@changed_attributes = {}
self.class.column_defaults.each do |attr, orig_value|
@changed_attributes[attr] = orig_value if _field_changed?(attr, orig_value, @attributes[attr])
end
@aggregation_cache = {}
@association_cache = {}
@attributes_cache = {}
@new_record = true
ensure_proper_type
populate_with_current_scope_attributes
super
end
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