dao

Documentation

Overview

Package dao provides access to the database. The main object is Source, from which a gorm.DB can be derived. The controllers are the methods used to access the database. Controllers are defined as methods on SOurce.

Index

• type Source
  • func NewMemorySource() *Source
  • func NewPostgresSource() *Source
  • func (s *Source) AllProducts() models.Products
  • func (s *Source) Close() error
  • func (s *Source) CountProducts() int
  • func (s *Source) CreateProduct(price uint, code string) uint
  • func (s *Source) DeleteProduct(id uint)
  • func (s *Source) DeleteProducts()
  • func (s *Source) GetDB() *gorm.DB
  • func (s *Source) GetProduct(id uint) *models.Product

Types

type Source

type Source struct {
	// contains filtered or unexported fields
}

Source is used to generate a DAO object (singleton)

func NewMemorySource

func NewMemorySource() *Source

NewMemorySource generate a memory database source

func NewPostgresSource

func NewPostgresSource() *Source

NewPostgresSource generates a postgres source

func (*Source) AllProducts

func (s *Source) AllProducts() models.Products

AllProducts dumps table content.

func (*Source) Close

func (s *Source) Close() error

Close the underlying database

func (*Source) CountProducts

func (s *Source) CountProducts() int

CountProducts return the number of products in db.

func (*Source) CreateProduct

func (s *Source) CreateProduct(price uint, code string) uint

CreateProduct register new product, return ID. Duplicates if already exists.

func (*Source) DeleteProduct

func (s *Source) DeleteProduct(id uint)

DeleteProduct using primary key.

func (*Source) DeleteProducts

func (s *Source) DeleteProducts()

DeleteProducts delete all products

func (*Source) GetDB

func (s *Source) GetDB() *gorm.DB

GetDB (lazily open and) returns the database associated with that source

func (*Source) GetProduct

func (s *Source) GetProduct(id uint) *models.Product

GetProduct by id