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handlers.go
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/
handlers.go
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package main
import (
"database/sql"
_ "github.com/lib/pq"
"github.com/martini-contrib/render"
"github.com/go-martini/martini"
"net/http"
)
func TodoIndex(db *sql.DB, r render.Render) {
rows, err := db.Query("SELECT id, name, completed FROM todos")
PanicIf(err)
defer rows.Close()
var id int
var name string
var completed bool
var todos Todos
for rows.Next() {
err:= rows.Scan(&id, &name, &completed)
PanicIf(err)
var todo Todo
todo.Id = id
todo.Name = name
todo.Completed = completed
todos = append(todos, todo)
}
r.JSON(200, todos)
}
func TodoCreate(db *sql.DB, p martini.Params, r render.Render, req *http.Request, todo Todo) {
var id int
err := db.QueryRow("INSERT INTO todos (name, completed) VALUES ($1, $2) RETURNING id", todo.Name, todo.Completed).Scan(&id)
PanicIf(err)
todo.Id = int(id)
r.JSON(200, todo)
}
func TodoShow(db *sql.DB, p martini.Params, r render.Render) {
row := db.QueryRow("SELECT id, name, completed FROM todos WHERE id = $1", p["id"])
var id int
var name string
var completed bool
err := row.Scan(&id, &name, &completed)
PanicIf(err)
todo := Todo{Id: id, Name: name, Completed: completed}
r.JSON(200, todo)
}
func TodoUpdate(db *sql.DB, p martini.Params, r render.Render, req *http.Request, todo Todo) {
var id int
err := db.QueryRow("UPDATE todos SET name=$1, completed=$2 WHERE id=$3 RETURNING id", todo.Name, todo.Completed, p["id"]).Scan(&id)
PanicIf(err)
todo.Id = id
r.JSON(200,todo)
}
func TodoDestroy(db *sql.DB, p martini.Params, r render.Render) {
_, err := db.Exec("DELETE FROM todos WHERE id=$1", p["id"])
PanicIf(err)
r.JSON(200, map[string]interface{}{"success": true})
}