Class: Stripe::StripeObject
- Inherits:
-
Object
- Object
- Stripe::StripeObject
- Includes:
- Enumerable
- Defined in:
- lib/stripe/stripe_object.rb
Direct Known Subclasses
APIResource, CreditNoteLineItem, Discount, ErrorObject, FinancialConnections::AccountOwner, FinancialConnections::AccountOwnership, InvoiceLineItem, ListObject, OAuthErrorObject, RecipientTransfer, SearchResultObject, SourceTransaction, UsageRecordSummary
Constant Summary collapse
- RESERVED_FIELD_NAMES =
When designing APIs, we now make a conscious effort server-side to avoid naming fields after important built-ins in various languages (e.g. class, method, etc.).
However, a long time ago we made the mistake (either consciously or by accident) of initializing our ‘metadata` fields as instances of `StripeObject`, and metadata can have a wide range of different keys defined in it. This is somewhat a convenient in that it allows users to access data like `obj.metadata.my_field`, but is almost certainly not worth the cost.
Naming metadata fields bad things like ‘class` causes `initialize_from` to produce strange results, so we ban known offenders here.
In a future major version we should consider leaving ‘metadata` as a hash and forcing people to access it with `obj.metadata` because the potential for trouble is just too high. For now, reserve names.
[ :class, ].freeze
- @@permanent_attributes =
rubocop:disable Style/ClassVars
Set.new([:id])
Class Method Summary collapse
-
.additive_object_param(name) ⇒ Object
Sets the given parameter name to one which is known to be an additive object.
-
.additive_object_param?(name) ⇒ Boolean
Returns whether the given name is an additive object parameter.
- .construct_from(values, opts = {}) ⇒ Object
-
.protected_fields ⇒ Object
A protected field is one that doesn’t get an accessor assigned to it (i.e. ‘obj.public = …`) and one which is not allowed to be updated via the class level `Model.update(id, { … })`.
Instance Method Summary collapse
-
#==(other) ⇒ Object
Determines the equality of two Stripe objects.
- #[](key) ⇒ Object
- #[]=(key, value) ⇒ Object
- #as_json(*opts) ⇒ Object
-
#deleted? ⇒ Boolean
Indicates whether or not the resource has been deleted on the server.
-
#dirty! ⇒ Object
Sets all keys within the StripeObject as unsaved so that they will be included with an update when #serialize_params is called.
- #each(&blk) ⇒ Object
-
#eql?(other) ⇒ Boolean
Hash equality.
-
#hash ⇒ Object
As with equality in ‘#==` and `#eql?`, we hash two Stripe objects to the same value if they’re equivalent objects.
-
#initialize(id = nil, opts = {}) ⇒ StripeObject
constructor
A new instance of StripeObject.
- #inspect ⇒ Object
- #keys ⇒ Object
-
#marshal_dump ⇒ Object
Implements custom encoding for Ruby’s Marshal.
-
#marshal_load(data) ⇒ Object
Implements custom decoding for Ruby’s Marshal.
- #serialize_params(options = {}) ⇒ Object
- #to_hash ⇒ Object
- #to_json(*_opts) ⇒ Object
- #to_s(*_args) ⇒ Object
-
#update_attributes(values, opts = {}, dirty: true) ⇒ Object
Mass assigns attributes on the model.
- #values ⇒ Object
Constructor Details
#initialize(id = nil, opts = {}) ⇒ StripeObject
Returns a new instance of StripeObject.
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# File 'lib/stripe/stripe_object.rb', line 73 def initialize(id = nil, opts = {}) id, @retrieve_params = Util.normalize_id(id) @opts = Util.normalize_opts(opts) @original_values = {} @values = {} # This really belongs in APIResource, but not putting it there allows us # to have a unified inspect method @unsaved_values = Set.new @transient_values = Set.new @values[:id] = id if id end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args) ⇒ Object (protected)
Disabling the cop because it’s confused by the fact that the methods are protected, but we do define ‘#respond_to_missing?` just below. Hopefully this is fixed in more recent Rubocop versions.
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# File 'lib/stripe/stripe_object.rb', line 370 protected def method_missing(name, *args) # TODO: only allow setting in updateable classes. if name.to_s.end_with?("=") attr = name.to_s[0...-1].to_sym # Pull out the assigned value. This is only used in the case of a # boolean value to add a question mark accessor (i.e. `foo?`) for # convenience. val = args.first # the second argument is only required when adding boolean accessors add_accessors([attr], attr => val) begin mth = method(name) rescue NameError raise NoMethodError, "Cannot set #{attr} on this object. HINT: you can't set: " \ "#{@@permanent_attributes.to_a.join(', ')}" end return mth.call(args[0]) elsif @values.key?(name) return @values[name] end begin super rescue NoMethodError => e # If we notice the accessed name of our set of transient values we can # give the user a slightly more helpful error message. If not, just # raise right away. raise unless @transient_values.include?(name) raise NoMethodError, e. + ". HINT: The '#{name}' attribute was set in the " \ "past, however. It was then wiped when refreshing the object " \ "with the result returned by Stripe's API, probably as a " \ "result of a save(). The attributes currently available on " \ "this object are: #{@values.keys.join(', ')}" end end |
Class Method Details
.additive_object_param(name) ⇒ Object
Sets the given parameter name to one which is known to be an additive object.
Additive objects are subobjects in the API that don’t have the same semantics as most subobjects, which are fully replaced when they’re set. This is best illustrated by example. The ‘source` parameter sent when updating a subscription is not additive; if we set it:
source[object]=card&source[number]=123
We expect the old ‘source` object to have been overwritten completely. If the previous source had an `address_state` key associated with it and we didn’t send one this time, that value of ‘address_state` is gone.
By contrast, additive objects are those that will have new data added to them while keeping any existing data in place. The only known case of its use is for ‘metadata`, but it could in theory be more general. As an example, say we have a `metadata` object that looks like this on the server side:
= { old: "old_value" }
If we update the object with ‘metadata=new_value`, the server side object now has both fields:
= { old: "old_value", new: "new_value" }
This is okay in itself because usually users will want to treat it as additive:
obj.[:new] = "new_value"
obj.save
However, in other cases, they may want to replace the entire existing contents:
obj. = { new: "new_value" }
obj.save
This is where things get a little bit tricky because in order to clear any old keys that may have existed, we actually have to send an explicit empty string to the server. So the operation above would have to send this form to get the intended behavior:
metadata[old]=&metadata[new]=new_value
This method allows us to track which parameters are considered additive, and lets us behave correctly where appropriate when serializing parameters to be sent.
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# File 'lib/stripe/stripe_object.rb', line 61 def self.additive_object_param(name) @additive_params ||= Set.new @additive_params << name end |
.additive_object_param?(name) ⇒ Boolean
Returns whether the given name is an additive object parameter. See ‘.additive_object_param` for details.
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# File 'lib/stripe/stripe_object.rb', line 68 def self.additive_object_param?(name) @additive_params ||= Set.new @additive_params.include?(name) end |
.construct_from(values, opts = {}) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 85 def self.construct_from(values, opts = {}) values = Stripe::Util.symbolize_names(values) # work around protected #initialize_from for now new(values[:id]).send(:initialize_from, values, opts) end |
.protected_fields ⇒ Object
A protected field is one that doesn’t get an accessor assigned to it (i.e. ‘obj.public = …`) and one which is not allowed to be updated via the class level `Model.update(id, { … })`.
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# File 'lib/stripe/stripe_object.rb', line 266 def self.protected_fields [] end |
Instance Method Details
#==(other) ⇒ Object
Determines the equality of two Stripe objects. Stripe objects are considered to be equal if they have the same set of values and each one of those values is the same.
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# File 'lib/stripe/stripe_object.rb', line 95 def ==(other) other.is_a?(StripeObject) && @values == other.instance_variable_get(:@values) end |
#[](key) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 157 def [](key) @values[key.to_sym] end |
#[]=(key, value) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 161 def []=(key, value) send(:"#{key}=", value) end |
#as_json(*opts) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 178 def as_json(*opts) @values.as_json(*opts) end |
#deleted? ⇒ Boolean
Indicates whether or not the resource has been deleted on the server. Note that some, but not all, resources can indicate whether they have been deleted.
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# File 'lib/stripe/stripe_object.rb', line 116 def deleted? @values.fetch(:deleted, false) end |
#dirty! ⇒ Object
Sets all keys within the StripeObject as unsaved so that they will be included with an update when #serialize_params is called. This method is also recursive, so any StripeObjects contained as values or which are values in a tenant array are also marked as dirty.
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# File 'lib/stripe/stripe_object.rb', line 207 def dirty! @unsaved_values = Set.new(@values.keys) @values.each_value do |v| dirty_value!(v) end end |
#each(&blk) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 199 def each(&blk) @values.each(&blk) end |
#eql?(other) ⇒ Boolean
Hash equality. As with ‘#==`, we consider two equivalent Stripe objects equal.
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# File 'lib/stripe/stripe_object.rb', line 102 def eql?(other) # Defer to the implementation on `#==`. self == other end |
#hash ⇒ Object
As with equality in ‘#==` and `#eql?`, we hash two Stripe objects to the same value if they’re equivalent objects.
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# File 'lib/stripe/stripe_object.rb', line 109 def hash @values.hash end |
#inspect ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 124 def inspect id_string = respond_to?(:id) && !id.nil? ? " id=#{id}" : "" "#<#{self.class}:0x#{object_id.to_s(16)}#{id_string}> JSON: " + JSON.pretty_generate(@values) end |
#keys ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 165 def keys @values.keys end |
#marshal_dump ⇒ Object
Implements custom encoding for Ruby’s Marshal. The data produced by this method should be comprehendable by #marshal_load.
This allows us to remove certain features that cannot or should not be serialized.
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# File 'lib/stripe/stripe_object.rb', line 219 def marshal_dump # The StripeClient instance in @opts is not serializable and is not # really a property of the StripeObject, so we exclude it when # dumping opts = @opts.clone opts.delete(:client) [@values, opts] end |
#marshal_load(data) ⇒ Object
Implements custom decoding for Ruby’s Marshal. Consumes data that’s produced by #marshal_dump.
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# File 'lib/stripe/stripe_object.rb', line 230 def marshal_load(data) values, opts = data initialize(values[:id]) initialize_from(values, opts) end |
#serialize_params(options = {}) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 236 def serialize_params( = {}) update_hash = {} @values.each do |k, v| # There are a few reasons that we may want to add in a parameter for # update: # # 1. The `force` option has been set. # 2. We know that it was modified. # 3. Its value is a StripeObject. A StripeObject may contain modified # values within in that its parent StripeObject doesn't know about. # unsaved = @unsaved_values.include?(k) next unless [:force] || unsaved || v.is_a?(StripeObject) update_hash[k.to_sym] = serialize_params_value( @values[k], @original_values[k], unsaved, [:force], key: k ) end # a `nil` that makes it out of `#serialize_params_value` signals an empty # value that we shouldn't appear in the serialized form of the object update_hash.reject! { |_, v| v.nil? } update_hash end |
#to_hash ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 182 def to_hash maybe_to_hash = lambda do |value| return nil if value.nil? value.respond_to?(:to_hash) ? value.to_hash : value end @values.each_with_object({}) do |(key, value), acc| acc[key] = case value when Array value.map(&maybe_to_hash) else maybe_to_hash.call(value) end end end |
#to_json(*_opts) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 173 def to_json(*_opts) # TODO: pass opts to JSON.generate? JSON.generate(@values) end |
#to_s(*_args) ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 120 def to_s(*_args) JSON.pretty_generate(to_hash) end |
#update_attributes(values, opts = {}, dirty: true) ⇒ Object
Mass assigns attributes on the model.
This is a version of update_attributes
that takes some extra options for internal use.
Attributes
-
values
- Hash of values to use to update the current attributes of the object. If you are on ruby 2.7 or higher make sure to wrap in curly braces to be ruby 3 compatible. -
opts
- Options forStripeObject
like an API key that will be reused on subsequent API calls.
Options
-
:dirty
- Whether values should be initiated as “dirty” (unsaved) and which applies only to new StripeObjects being initiated under this StripeObject. Defaults to true.
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# File 'lib/stripe/stripe_object.rb', line 148 def update_attributes(values, opts = {}, dirty: true) values.each do |k, v| add_accessors([k], values) unless .method_defined?(k.to_sym) @values[k] = Util.convert_to_stripe_object(v, opts) dirty_value!(@values[k]) if dirty @unsaved_values.add(k) end end |
#values ⇒ Object
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# File 'lib/stripe/stripe_object.rb', line 169 def values @values.values end |