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Versions: 99
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Contents
# frozen_string_literal: true
module Deimos
module ActiveRecordConsume
# Convert a message with a schema to an ActiveRecord model
class SchemaModelConverter
# Create new converter
# @param decoder [SchemaBackends::Base] Incoming message schema.
# @param klass [ActiveRecord::Base] Model to map to.
def initialize(decoder, klass)
@decoder = decoder
@klass = klass
end
# Convert a message from a decoded hash to a set of ActiveRecord
# attributes. Attributes that don't exist in the model will be ignored.
# @param payload [Hash] Decoded message payload.
# @return [Hash] Model attributes.
def convert(payload)
attributes = {}
@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
private
# @param column [ActiveRecord::ConnectionAdapters::Column]
# @param val [Object]
def _coerce_field(column, val)
return nil if val.nil?
if column.type == :datetime
int_val = begin
val.is_a?(Integer) ? val : (val.is_a?(String) && Integer(val))
rescue StandardError
nil
end
return Time.zone.at(int_val) if int_val
end
val
end
end
end
end
Version data entries
99 entries across 99 versions & 2 rubygems