Class: Deimos::ActiveRecordConsumer
- Inherits:
-
Consumer
- Object
- BaseConsumer
- Consumer
- Deimos::ActiveRecordConsumer
- Defined in:
- lib/deimos/active_record_consumer.rb
Overview
Consumer that automatically saves the payload into the database.
Class Method Summary collapse
-
.record_class(klass) ⇒ Object
param klass [Class < ActiveRecord::Base] the class used to save to the database.
Instance Method Summary collapse
-
#assign_key(record, _payload, key) ⇒ Object
Assign a key to a new record.
-
#consume(payload, metadata) ⇒ Object
:nodoc:.
-
#destroy_record(record) ⇒ Object
Destroy a record that received a null payload.
-
#fetch_record(klass, _payload, key) ⇒ ActiveRecord::Base
Find the record specified by the given payload and key.
-
#record_attributes(payload) ⇒ Object
Override this method (with ‘super`) if you want to add/change the default attributes set to the new/existing record.
Methods inherited from Consumer
Methods inherited from BaseConsumer
#decode_key, decoder, key_decoder
Class Method Details
.record_class(klass) ⇒ Object
param klass [Class < ActiveRecord::Base] the class used to save to the database.
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# File 'lib/deimos/active_record_consumer.rb', line 11 def record_class(klass) config[:record_class] = klass end |
Instance Method Details
#assign_key(record, _payload, key) ⇒ Object
Assign a key to a new record.
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# File 'lib/deimos/active_record_consumer.rb', line 31 def assign_key(record, _payload, key) record[record.class.primary_key] = key end |
#consume(payload, metadata) ⇒ Object
:nodoc:
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# File 'lib/deimos/active_record_consumer.rb', line 36 def consume(payload, ) key = .with_indifferent_access[:key] klass = self.class.config[:record_class] record = fetch_record(klass, (payload || {}).with_indifferent_access, key) if payload.nil? destroy_record(record) return end if record.blank? record = klass.new assign_key(record, payload, key) end attrs = record_attributes(payload.with_indifferent_access) # don't use attributes= - bypass Rails < 5 attr_protected attrs.each do |k, v| record.send("#{k}=", v) end record.created_at ||= Time.zone.now if record.respond_to?(:created_at) record.updated_at ||= Time.zone.now if record.respond_to?(:updated_at) record.save! end |
#destroy_record(record) ⇒ Object
Destroy a record that received a null payload. Override if you need to do something other than a straight destroy (e.g. mark as archived).
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# File 'lib/deimos/active_record_consumer.rb', line 61 def destroy_record(record) record&.destroy end |
#fetch_record(klass, _payload, key) ⇒ ActiveRecord::Base
Find the record specified by the given payload and key. Default is to use the primary key column and the value of the first field in the key.
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# File 'lib/deimos/active_record_consumer.rb', line 23 def fetch_record(klass, _payload, key) klass.unscoped.where(klass.primary_key => key).first end |
#record_attributes(payload) ⇒ Object
Override this method (with ‘super`) if you want to add/change the default attributes set to the new/existing record.
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# File 'lib/deimos/active_record_consumer.rb', line 68 def record_attributes(payload) klass = self.class.config[:record_class] attributes = {} self.class.decoder.schema_fields.each do |field| column = klass.columns.find { |c| c.name == field.name } next if column.nil? next if %w(updated_at created_at).include?(field.name) attributes[field.name] = _coerce_field(column, payload[field.name]) end attributes end |