Class: Volt::Persistors::ModelStore
- Includes:
- StoreState
- Defined in:
- lib/volt/models/persistors/model_store.rb
Constant Summary collapse
- ID_CHARS =
[('a'..'f'), ('0'..'9')].map(&:to_a).flatten
Instance Attribute Summary collapse
-
#in_identity_map ⇒ Object
Returns the value of attribute in_identity_map.
-
#model ⇒ Object
readonly
Returns the value of attribute model.
Class Method Summary collapse
-
.changed(model_id, data) ⇒ Object
Update the models based on the id/identity map.
Instance Method Summary collapse
- #[](val) ⇒ Object
- #add_to_collection ⇒ Object
- #add_to_identity_map ⇒ Object
-
#changed(attribute_name = nil) ⇒ Object
Called when the model changes.
-
#ensure_setup ⇒ Object
Called the first time a value is assigned into this model.
- #event_added(event, first, first_for_event) ⇒ Object
-
#generate_id ⇒ Object
Create a random unique id that can be used as the mongo id as well.
-
#initialize(model, tasks) ⇒ ModelStore
constructor
A new instance of ModelStore.
- #remove_from_collection ⇒ Object
- #save_changes? ⇒ Boolean
Methods included from StoreState
#change_state_to, #loaded, #state
Methods inherited from Store
Methods inherited from Base
#added, #event_removed, #loaded, #removed
Constructor Details
#initialize(model, tasks) ⇒ ModelStore
Returns a new instance of ModelStore.
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# File 'lib/volt/models/persistors/model_store.rb', line 19 def initialize(model, tasks) super @in_identity_map = false end |
Instance Attribute Details
#in_identity_map ⇒ Object
Returns the value of attribute in_identity_map.
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# File 'lib/volt/models/persistors/model_store.rb', line 17 def in_identity_map @in_identity_map end |
#model ⇒ Object (readonly)
Returns the value of attribute model.
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# File 'lib/volt/models/persistors/model_store.rb', line 16 def model @model end |
Class Method Details
.changed(model_id, data) ⇒ Object
Update the models based on the id/identity map. Usually these requests will come from the backend.
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# File 'lib/volt/models/persistors/model_store.rb', line 115 def self.changed(model_id, data) model = @@identity_map.lookup(model_id) if model data.each_pair do |key, value| if key != :_id model.send(:"_#{key}=", value) end end end end |
Instance Method Details
#[](val) ⇒ Object
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# File 'lib/volt/models/persistors/model_store.rb', line 127 def [](val) fail 'Models do not support hash style lookup. Hashes inserted into other models are converted to models, see https://github.com/voltrb/volt#automatic-model-conversion' end |
#add_to_collection ⇒ Object
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# File 'lib/volt/models/persistors/model_store.rb', line 25 def add_to_collection @in_collection = true ensure_setup changed end |
#add_to_identity_map ⇒ Object
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# File 'lib/volt/models/persistors/model_store.rb', line 44 def add_to_identity_map unless @in_identity_map @@identity_map.add(@model._id, @model) @in_identity_map = true end end |
#changed(attribute_name = nil) ⇒ Object
Called when the model changes
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# File 'lib/volt/models/persistors/model_store.rb', line 69 def changed(attribute_name = nil) path = @model.path promise = Promise.new ensure_setup path_size = path.size if save_changes? && path_size > 0 && !@model.nil? if path_size > 3 && (parent = @model.parent) && (source = parent.parent) @model.attributes[:"#{path[-4].singularize}_id"] = source._id end if !collection puts 'Attempting to save model directly on store.' fail 'Attempting to save model directly on store.' else if RUBY_PLATFORM == 'opal' StoreTasks.save(collection, path, self_attributes).then do |errors| if errors.size == 0 promise.resolve(nil) else promise.reject(errors) end end else errors = save_to_db!(self_attributes) if errors.size == 0 promise.resolve(nil) else promise.reject(errors) end end end end promise end |
#ensure_setup ⇒ Object
Called the first time a value is assigned into this model
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# File 'lib/volt/models/persistors/model_store.rb', line 36 def ensure_setup if @model.attributes @model.attributes[:_id] ||= generate_id add_to_identity_map end end |
#event_added(event, first, first_for_event) ⇒ Object
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# File 'lib/volt/models/persistors/model_store.rb', line 107 def event_added(event, first, first_for_event) if first_for_event && event == :changed ensure_setup end end |
#generate_id ⇒ Object
Create a random unique id that can be used as the mongo id as well
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# File 'lib/volt/models/persistors/model_store.rb', line 53 def generate_id id = [] 24.times { id << ID_CHARS.sample } id.join end |
#remove_from_collection ⇒ Object
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# File 'lib/volt/models/persistors/model_store.rb', line 31 def remove_from_collection @in_collection = false end |
#save_changes? ⇒ Boolean
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# File 'lib/volt/models/persistors/model_store.rb', line 60 def save_changes? if RUBY_PLATFORM == 'opal' return !(defined?($loading_models) && $loading_models) && @tasks else return true end end |