Class: Loco::Model
Class Method Summary
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Instance Method Summary
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Methods included from Observable
#init, #initWithFrame, #initWithStyle, #initialize, #method_missing, #register_observer, #remove_all_observers, #remove_observer, #set_properties, #update_attributes
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
in the class Loco::Observable
Class Method Details
.adapter(adapter_class, *args) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 48
def adapter(adapter_class, *args)
if adapter_class.is_a? String
@adapter = adapter_class.constantize.new(*args)
else
@adapter = adapter_class.new(*args)
end
end
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.belongs_to(model) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 56
def belongs_to(model)
attr_accessor model
attr_accessor "#{model}_id"
belongs_to_class_name = model.to_s.classify
define_method "#{model}" do |&block|
record = instance_variable_get("@#{model}")
if record
block.call(record) if block.is_a? Proc
record
else
belongs_to_id = self.send("#{model}_id")
if belongs_to_id
belongs_to_class_name.constantize.find(belongs_to_id) do |record|
instance_variable_set("@#{model}", record)
block.call(record) if block.is_a? Proc
end
else
block.call(record) if block.is_a? Proc
record
end
end
end
define_method "#{model}=" do |record|
raise TypeError, "Expecting a #{belongs_to_class_name} as defined by #belongs_to :#{model}" unless record.is_a? belongs_to_class_name.constantize
self.send("#{model}_id=", (record.nil? ? nil : record.id))
instance_variable_set("@#{model}", record)
record
end
relationships = get_class_relationships
relationships << { belongs_to: model }
end
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.find(id = nil, &block) ⇒ Object
Also known as:
all, where
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# File 'lib/motion-loco/model.rb', line 140
def find(id=nil, &block)
adapter = self.get_class_adapter
if id.nil?
records = RecordArray.new
adapter.find_all(self, records) do |records|
block.call(records) if block.is_a? Proc
end
elsif id.is_a? Array
records = RecordArray.new
id.each do |i|
records << self.new(id: i)
end
adapter.find_many(self, records, id) do |records|
block.call(records) if block.is_a? Proc
end
elsif id.is_a? Hash
records = RecordArray.new
adapter.find_query(self, records, id) do |records|
block.call(records) if block.is_a? Proc
end
else
record = self.new(id: id)
adapter.find(record, id) do |record|
block.call(record) if block.is_a? Proc
end
end
end
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.get_class_adapter ⇒ Object
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# File 'lib/motion-loco/model.rb', line 173
def get_class_adapter
@adapter ||= Adapter.new
end
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.has_many(model) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 92
def has_many(model)
attr_accessor model
attr_accessor "#{model.to_s.singularize}_ids"
has_many_class_name = model.to_s.singularize.classify
define_method "#{model}" do |&block|
has_many_class = has_many_class_name.constantize
records = instance_variable_get("@#{model}")
if records
block.call(records) if block.is_a? Proc
records
else
has_many_ids = self.send("#{model.to_s.singularize}_ids")
if has_many_ids
has_many_class.find(has_many_ids) do |records|
block.call(records) if block.is_a? Proc
end
else
query = {}
query["#{self.class.to_s.underscore.singularize}_id"] = self.id
has_many_class.find(query) do |records|
block.call(records) if block.is_a? Proc
end
end
end
end
define_method "#{model}=" do |records|
has_many_class = has_many_class_name.constantize
if (records.is_a?(RecordArray) || records.is_a?(Array)) && (records.length == 0 || (records.length > 0 && records.first.class == has_many_class))
unless records.is_a?(RecordArray)
record_array = RecordArray.new
record_array.addObjectsFromArray(records)
records = record_array
end
else
raise TypeError, "Expecting a Loco::RecordArray of #{has_many_class_name} objects as defined by #has_many :#{model}"
end
self.send("#{model.to_s.singularize}_ids=", records.map(&:id))
instance_variable_set("@#{model}", records)
end
relationships = get_class_relationships
relationships << { has_many: model }
end
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Instance Method Details
#destroy(&block) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 10
def destroy(&block)
adapter = self.class.get_class_adapter
unless self.new?
adapter.delete_record(self) do |record|
block.call(record) if block.is_a? Proc
end
end
end
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#load(id, data) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 19
def load(id, data)
data.merge!({ id: id })
self.set_properties(data)
self
end
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#new? ⇒ Boolean
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# File 'lib/motion-loco/model.rb', line 25
def new?
self.id.nil?
end
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#save(&block) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 29
def save(&block)
adapter = self.class.get_class_adapter
if self.new?
adapter.create_record(self) do |record|
block.call(record) if block.is_a? Proc
end
else
adapter.update_record(self) do |record|
block.call(record) if block.is_a? Proc
end
end
end
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#serialize(options = {}) ⇒ Object
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# File 'lib/motion-loco/model.rb', line 42
def serialize(options={})
self.class.get_class_adapter.serialize(self, options)
end
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