[development] Managing own entity

*Hi. Im trying to make my own entity - item(e-shop). So far I have this http://pastebin.com/KgrzBzAY Lets say I have an array/object with data(name, price..), how do I save it and load it? How do I make Drupal insert, lets say, price into my price column in my item table ? ** * *Ivan Jaroš* *blog: ivanjaros.com* tel: +421 948 496 678 skype: ijaros