Module: RedisColumn::Record::InstanceMethods

Defined in:
lib/redis-column.rb

Instance Method Summary collapse

Instance Method Details

#assign_redis_columns ⇒ Object

Assigns the values from Redis unless already specified



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# File 'lib/redis-column.rb', line 77

def assign_redis_columns
  redis_columns.each do |column_name|
    write_attribute column_name, read_redis_attribute(column_name) unless read_attribute(column_name.to_s).present?
  end
end

#delete_redis_attribute(column_name) ⇒ Object

Delete value from Redis



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# File 'lib/redis-column.rb', line 72

def delete_redis_attribute column_name
  redis_instance.del(redis_key(column_name))
end

#delete_redis_columns! ⇒ Object

Delete all values in Redis



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# File 'lib/redis-column.rb', line 91

def delete_redis_columns!
  redis_columns.each do |column_name|
    delete_redis_attribute column_name
  end
end

#read_redis_attribute(column_name) ⇒ Object

Read from Redis and unserialise



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# File 'lib/redis-column.rb', line 61

def read_redis_attribute column_name
  val = redis_instance.get(redis_key(column_name))
  YAML.load(val) unless val.nil?
end

#redis_key(column_name) ⇒ Object

Returns the key to be used in Redis



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# File 'lib/redis-column.rb', line 56

def redis_key column_name
  "#{self.class.model_name.i18n_key}:#{self.id}:#{column_name}"
end

#save_redis_columns! ⇒ Object

Save all values back to Redis



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# File 'lib/redis-column.rb', line 84

def save_redis_columns!
  redis_columns.each do |column_name|
    write_redis_attribute column_name, read_attribute(column_name)
  end
end

#write_redis_attribute(column_name, val) ⇒ Object

Serialise and write to Redis



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# File 'lib/redis-column.rb', line 67

def write_redis_attribute column_name, val
  redis_instance.set(redis_key(column_name), val.to_yaml) and return val
end