Removing this example, since upper.io/db is no longer providing relations.

_examples/inter-database-relations/main.go

-package main
-
-/*
-	See relations: http://gosexy.org/db/collection
-*/
-
-import (
-	"fmt"
-	"upper.io/db"
-	_ "upper.io/db/mysql"
-	_ "upper.io/db/postgresql"
-)
-
-/*
-	create table "peopleIAdmire" (
-		id serial,
-		name varchar,
-		born int
-	);
-*/
-var postgresqlSettings = db.DataSource{
-	//Host:     "localhost",
-	Socket:   "/var/run/postgresql/",
-	Database: "myself",
-	User:     "gouser",
-	Password: "gopass",
-}
-
-/*
-	create table worksOfPeopleIAdmire (
-		id smallint auto_increment,
-		primary key(id),
-		name varchar(255),
-		year smallint,
-		author_id varchar(60)
-	);
-*/
-var mysqlSettings = db.DataSource{
-	//Host:     "localhost",
-	Socket:   "/var/run/mysqld/mysqld.sock",
-	Database: "myself",
-	User:     "gouser",
-	Password: "gopass",
-}
-
-func main() {
-
-	var ids []db.Id
-	var err error
-
-	mysqlSess, err := db.Open("mysql", mysqlSettings)
-
-	if err != nil {
-		panic(err)
-	}
-
-	defer mysqlSess.Close()
-
-	postgresqlSess, err := db.Open("postgresql", postgresqlSettings)
-
-	if err != nil {
-		panic(err)
-	}
-
-	defer postgresqlSess.Close()
-
-	peopleIAdmire := postgresqlSess.ExistentCollection("peopleIAdmire")
-	worksOfPeopleIAdmire := mysqlSess.ExistentCollection("worksOfPeopleIAdmire")
-
-	// APPENDING PEOPLE
-	peopleIAdmire.Truncate()
-
-	// Hayao Miyazaki
-	ids, err = peopleIAdmire.Append(db.Item{
-		"name": "Hayao Miyazaki",
-		"born": 1941,
-	})
-
-	if err != nil {
-		panic(err)
-	}
-
-	miyazakiId := ids[0]
-
-	// Edgar Allan Poe
-	ids, err = peopleIAdmire.Append(db.Item{
-		"name": "Edgar Allan Poe",
-		"born": 1809,
-	})
-
-	if err != nil {
-		panic(err)
-	}
-
-	poeId := ids[0]
-
-	// Gabriel García Márquez
-	ids, err = peopleIAdmire.Append(db.Item{
-		"name": "Gabriel García Márquez",
-		"born": 1927,
-	})
-
-	if err != nil {
-		panic(err)
-	}
-
-	gaboId := ids[0]
-
-	// APPENDING WORKS
-	worksOfPeopleIAdmire.Truncate()
-
-	// Mizayaki
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Nausicaä of the Valley of the Wind",
-		"year":      1984,
-		"author_id": miyazakiId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Princes Mononoke",
-		"year":      1997,
-		"author_id": miyazakiId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Howl's Moving Castle",
-		"year":      2004,
-		"author_id": miyazakiId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "My Neighbor Totoro",
-		"year":      1988,
-		"author_id": miyazakiId,
-	})
-
-	// Poe
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "The Black Cat",
-		"year":      1843,
-		"author_id": poeId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "The Facts in the Case of M. Valdemar",
-		"year":      1845,
-		"author_id": poeId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "The Gold Bug",
-		"year":      1843,
-		"author_id": poeId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "The Murders in the Rue Morge",
-		"year":      1841,
-		"author_id": poeId,
-	})
-
-	// Gabo
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Memoria de mis putas tristes",
-		"year":      2004,
-		"author_id": gaboId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "El amor en los tiempos del cólera",
-		"year":      1985,
-		"author_id": gaboId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Del amor y otros demonios",
-		"year":      1994,
-		"author_id": gaboId,
-	})
-
-	worksOfPeopleIAdmire.Append(db.Item{
-		"name":      "Cien años de soledad",
-		"year":      1967,
-		"author_id": gaboId,
-	})
-
-	// TESTING RELATION
-
-	peopleAndWorks, err := peopleIAdmire.FindAll(
-		db.RelateAll{
-			"works": db.On{
-				worksOfPeopleIAdmire,
-				db.Cond{"author_id": "{id}"},
-			},
-		},
-	)
-
-	if err != nil {
-		panic(err.Error())
-	}
-
-	fmt.Printf("People I Admire:\n\n")
-
-	for _, person := range peopleAndWorks {
-
-		fmt.Printf("%s. Born %d.\n\n", person["name"], person["born"])
-		fmt.Printf("Some of his works are:\n")
-
-		for _, work := range person["works"].([]db.Item) {
-			fmt.Printf("* %s, %d.\n", work["name"], work["year"])
-		}
-
-		fmt.Printf("---\n\n")
-	}
-
-	/*
-		People I Admire:
-
-		Hayao Miyazaki. Born 1941.
-
-		Some of his works are:
-		* Nausicaä of the Valley of the Wind, 1984.
-		* Princes Mononoke, 1997.
-		* Howl's Moving Castle, 2004.
-		* My Neighbor Totoro, 1988.
-		---
-
-		Edgar Allan Poe. Born 1809.
-
-		Some of his works are:
-		* The Black Cat, 1843.
-		* The Facts in the Case of M. Valdemar, 1845.
-		* The Gold Bug, 1843.
-		* The Murders in the Rue Morge, 1841.
-		---
-
-		Gabriel García Márquez. Born 1927.
-
-		Some of his works are:
-		* Memoria de mis putas tristes, 2004.
-		* El amor en los tiempos del cólera, 1985.
-		* Del amor y otros demonios, 1994.
-		* Cien años de soledad, 1967.
-		---
-	*/
-
-}