golangを使った、postgresqlのinsertの方法

ebata
2年前
/*

こんな感じで、DBとTableを作りました

create database agent_db;

create table LocMessage(
	ID     int,
	Lat    double precision,
	Lng    double precision,
	TYPE   varchar(10),
	POPUP  int,
	RealId int,
	PersonState      int,
	BikeState        int,
	StartStationLat  double precision,
	StartStationLng  double precision,
	GoalStationLat   double precision,
	GoalStationLng   double precision,
	StartStationName varchar(40),
	GoalStationName  varchar(40)
);

ちなみに、全部小文字になるみたいですねえ。
agent_db=# select * from locmessage;
 id |  lat   |  lng  |   type   | popup | realid | personstate | bikestate | startstationlat | startstationlng | goalstationlat | goalstationlng | startstationname | goalstationname
----+--------+-------+----------+-------+--------+-------------+-----------+-----------------+-----------------+----------------+----------------+------------------+-----------------

*/

package main

import (
	"database/sql"
	"log"

	_ "github.com/lib/pq"
)

func main() {

	db, err := sql.Open("postgres",
		"user=postgres password=password host=localhost port=15432 dbname=agent_db sslmode=disable")
	if err != nil {
		log.Fatal("OpenError: ", err)
	}
	defer db.Close()

	//_, err = db.Exec("insert into locmessage(id,lat,lng,type,popup,realid,startstationlng ) VALUES(1, 139.0, 38.0, 'PERSON',1,1,222.222);")
	// _, err = db.Exec("insert into locmessage(id,lat) VALUES(a, b);")
	//ins, err := db.Prepare("insert into locmessage(id,lat,lng,type,popup,realid,startstationlng ) VALUES(?,?,?,?,?,?,?)")
	ins, err := db.Prepare("insert into locmessage(id,lat,lng,type,popup,realid,startstationlng ) VALUES($1,$2,$3,$4,$5,$6,$7)")
	if err != nil {
		log.Fatal("db.Exec Error: ", err)
	}

	a := 1
	b := 139.02
	c := 38.02
	dd := "Tomoichi"
	e := 1
	f := 1
	g := 333.333

	//ins.Exec("1", "139.0", "38.0", "BIKE", "1", "1", "222.222")
	//ins.Exec(1, 139.01, 38.01, "BIKE", 1, 1, 222.222)
	//ins.Exec(1, 139.0, 38.0, 1, 1, 1, 222.222)
	ins.Exec(a, b, c, dd, e, f, g)

}
とりあえず、これでデータベースの書き込みはできるみたい。