views package, add, update in userStore, user model rules, add todo.md

TODO.md

@@ -0,0 +1,3 @@
+# TO DO
+
+- [x] The mail field is case sensitive. Convert mail to lowercase before they are sent to InsertUser

controller/router.go

@@ -2,18 +2,15 @@ package controller
 
 import (
 	"fmt"
-	"html/template"
 	"net/http"
 	"regexp"
 
 	"github.com/rjNemo/go-wiki/model"
 	"github.com/rjNemo/go-wiki/service"
-	"github.com/rjNemo/go-wiki/settings"
+	"github.com/rjNemo/go-wiki/views"
 )
 
-// func ParseTemplates() *template.Template {
+var validPath = regexp.MustCompile("^/(edit|save|view)/([a-zA-Z0-9]+)$")
-// 	return template.Must(template.ParseFiles("templates/edit.html", "templates/view.html")) // add slice of fileNAmes
-// }
 
 // Router dispatch the request to the corresponding route handlers.
 func Router() {
@@ -27,7 +24,7 @@ func Router() {
 }
 
 func homeHandler(w http.ResponseWriter, r *http.Request) {
-	renderTemplate(w, "home", nil)
+	views.Template(w, "home", nil)
 }
 
 func viewHandler(w http.ResponseWriter, r *http.Request, title string) {
@@ -36,7 +33,7 @@ func viewHandler(w http.ResponseWriter, r *http.Request, title string) {
 		http.Redirect(w, r, "/edit/"+title, http.StatusFound)
 		return
 	}
-	renderTemplate(w, "view", p)
+	views.Template(w, "view", p)
 }
 
 func editHandler(w http.ResponseWriter, r *http.Request, title string) {
@@ -44,7 +41,7 @@ func editHandler(w http.ResponseWriter, r *http.Request, title string) {
 	if err != nil {
 		p = model.NewPage(title, nil)
 	}
-	renderTemplate(w, "edit", p)
+	views.Template(w, "edit", p)
 }
 
 func saveHandler(w http.ResponseWriter, r *http.Request, title string) {
@@ -56,7 +53,7 @@ func saveHandler(w http.ResponseWriter, r *http.Request, title string) {
 }
 
 func contactHandler(w http.ResponseWriter, r *http.Request) {
-	renderTemplate(w, "contact", nil)
+	views.Template(w, "contact", nil)
 }
 
 func postContactHandler(w http.ResponseWriter, r *http.Request) {
@@ -65,27 +62,13 @@ func postContactHandler(w http.ResponseWriter, r *http.Request) {
 	mail := parseContactForm(r)
 	mail.Send()
 	fmt.Println(mail)
-	renderTemplate(w, "contact_sent", nil)
+	views.Template(w, "contact_sent", nil)
 }
 
 func parseContactForm(r *http.Request) service.Mail {
 	return service.NewMail(r.PostFormValue("email"), r.PostFormValue("message"))
 }
 
-// var templates = template.Must(template.ParseFiles("templates/edit.html", "templates/view.html")) // add slice of fileNAmes
-
-func renderTemplate(w http.ResponseWriter, tmpl string, p *model.Page) {
-	// err := templates.ExecuteTemplate(w, "templates/"+tmpl+".html", p)
-	t, err := template.ParseFiles(getTmplName("base"), getTmplName(tmpl))
-	checkError(err, w)
-	err = t.Execute(w, p)
-	checkError(err, w)
-}
-
-func getTmplName(tmpl string) string {
-	return settings.TmplDir + tmpl + ".html"
-}
-
 func checkError(err error, w http.ResponseWriter) {
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -93,8 +76,6 @@ func checkError(err error, w http.ResponseWriter) {
 	}
 }
 
-var validPath = regexp.MustCompile("^/(edit|save|view)/([a-zA-Z0-9]+)$")
-
 func makeHandler(fn func(http.ResponseWriter, *http.Request, string)) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		m := validPath.FindStringSubmatch(r.URL.Path)

data/database.go

@@ -1,70 +0,0 @@
-package data
-
-import (
-	"database/sql"
-	"log"
-
-	_ "github.com/lib/pq" // postgresql database package
-	"github.com/rjNemo/go-wiki/model"
-	"github.com/rjNemo/go-wiki/settings"
-)
-
-// Connect read the connection parameters to establish a connection to the
-// database.
-func Connect() {
-	log.Print("Inside connect func")
-	connStr := settings.ConnStr
-	db, err := sql.Open("postgres", connStr)
-	log.Print("opened connect")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer db.Close()
-
-	log.Print("try to ping")
-	err = db.Ping()
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	log.Println("Database successfully connected!")
-
-	createTable(db)
-	u := model.TestUser()
-	insertUser(db, u)
-	log.Print(u)
-}
-
-func sqlExec(db *sql.DB, s string) {
-	if _, err := db.Exec(s); err != nil {
-		log.Fatal(err)
-		return
-	}
-	log.Printf("Command successfully executed!: %s", s)
-}
-
-func createTable(db *sql.DB) {
-	sqlExec(db, QueryCreateTable)
-	log.Print("Table successfully created!")
-}
-
-func insertUser(db *sql.DB, u model.User) {
-	id := 0
-	err := db.QueryRow(QueryInsertUser, u.Age(), u.Email(), u.FirstName(), u.LastName()).Scan(&id)
-	if err != nil {
-		log.Fatal(err)
-	}
-	// u.SetID(id)
-	log.Println("New User ID is:", id)
-}
-
-func insertUsers(db *sql.DB) {
-	query := `
-	INSERT INTO users (age, email, first_name, last_name)
-	VALUES ($1, $2, $3, $4)`
-
-	_, err := db.Exec(query, 32, "ruidy.nemausat@gmail.com", "Ruidy", "Nemausat")
-	if err != nil {
-		log.Fatal(err)
-	}
-}

data/psql.go

@@ -0,0 +1,59 @@
+package data
+
+import (
+	"database/sql"
+	"log"
+
+	_ "github.com/lib/pq" // postgresql database package
+	"github.com/rjNemo/go-wiki/model"
+	"github.com/rjNemo/go-wiki/settings"
+)
+
+// UsePSQL read the connection parameters to establish a connection to the
+// database.
+func UsePSQL() {
+	connStr := settings.ConnStr
+	db, err := sql.Open("postgres", connStr)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	err = db.Ping()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	log.Println("Database successfully connected!")
+
+	createUserTable(db)
+	store := NewUserStore(db)
+	// u := model.TestUser()
+	// store.Add(u)
+	// log.Print(u)
+	u1 := model.NewUser(3, 19, "paul", "newman", "PdsN@FDKML.COM")
+	store.Update(16, u1)
+}
+
+func sqlExec(db *sql.DB, s string) {
+	if _, err := db.Exec(s); err != nil {
+		log.Fatal(err)
+		return
+	}
+	log.Printf("Command successfully executed!: %s", s)
+}
+
+func createUserTable(db *sql.DB) {
+	sqlExec(db, QueryCreateTable)
+	log.Print("Table successfully created!")
+}
+
+// Store interface defines the methods any store must satisfy
+type Store interface {
+	CreateTable()
+	Add(i interface{})
+	Get()
+	Find(id int)
+	Update(id int, i interface{})
+	Delete(id int)
+}

data/queries.go

@@ -1,21 +0,0 @@
-package data
-
-const (
-	// QueryCreateTable is the SQL command used to create the users table if it
-	// not exists.
-	QueryCreateTable = `
-	CREATE TABLE IF NOT EXISTS users (
-	id SERIAL PRIMARY KEY,
-	age INT,
-	first_name TEXT,
-	last_name TEXT,
-	email TEXT UNIQUE NOT NULL)
-	`
-	// QueryInsertUser is the SQL command used to insert a user in the table.
-	// Returning the new ID.
-	QueryInsertUser = `
-	INSERT INTO users (age, email, first_name, last_name)
-	VALUES ($1, $2, $3, $4)
-	RETURNING id
-	`
-)

data/userQueries.go

@@ -0,0 +1,34 @@
+package data
+
+const (
+	// QueryCreateTable is the SQL command used to create the users table if it
+	// not exists.
+	QueryCreateTable = `
+	CREATE TABLE IF NOT EXISTS users (
+	id SERIAL PRIMARY KEY,
+	age INT,
+	first_name TEXT,
+	last_name TEXT,
+	email TEXT UNIQUE NOT NULL)
+	`
+	// QueryInsert is the SQL command used to insert a user in the table.
+	// Returning the new ID.
+	QueryInsert = `
+	INSERT INTO users (age, email, first_name, last_name)
+	VALUES ($1, $2, $3, $4)
+	RETURNING id
+	`
+
+	// QueryUpdate is the SQL command used to update a user in the database.
+	QueryUpdate = `
+	UPDATE users
+	SET age = $2, email = $3, first_name = $4, last_name = $5
+	WHERE id = $1;
+	`
+
+	// QueryDelete is the SQL command used to delete a user from the database.
+	QueryDelete = `
+	DELETE FROM users
+	WHERE id = $1;
+	`
+)

data/userStore.go

@@ -0,0 +1,58 @@
+package data
+
+import (
+	"database/sql"
+	"log"
+
+	"github.com/rjNemo/go-wiki/model"
+)
+
+// UserStore is used to perform user-related CRUD operations on the DB
+type UserStore struct {
+	db *sql.DB
+}
+
+// NewUserStore constructs a UserStore connected to the database.
+func NewUserStore(db *sql.DB) UserStore {
+	return UserStore{db: db}
+}
+
+// Add inserts a user in the database.
+func (us UserStore) Add(u model.User) {
+	id := 0
+	err := us.db.QueryRow(QueryInsert, u.Age(), u.Email(), u.FirstName(), u.LastName()).Scan(&id)
+	if err != nil {
+		log.Fatal(err) // too severe
+	}
+	log.Println("New User ID is:", id)
+}
+
+// Update edits user identified by 'id' in the database
+func (us UserStore) Update(id int, u model.User) {
+	res, err := us.db.Exec(QueryUpdate, id, u.Age(), u.Email(), u.FirstName(), u.LastName())
+	if err != nil {
+		log.Fatal(err) // too severe
+	}
+	count, err := res.RowsAffected()
+	if err != nil {
+		log.Fatal(err) // too severe
+	}
+	if count == 0 {
+		log.Fatal("Update failed") // too severe
+	}
+}
+
+
+// Delete removes user identified by 'id' from the database
+func (us UserStore) Delete(id int) {
+	res, err := us.db.Exec(QueryDelete, id)
+	if err != nil {
+		log.Fatal(err) // too severe
+	}
+	count, err := res.RowsAffected()
+	if err != nil {
+		log.Fatal(err) // too severe
+	}
+	if count == 0 {
+		log.Fatal("Update failed") // too severe
+	}

main.go

@@ -8,7 +8,7 @@ import (
 )
 
 func main() {
-	data.Connect()
+	data.UsePSQL()
 	// startServer(settings.Port, controller.Router)
 }
 

model/user.go

@@ -1,5 +1,7 @@
 package model
 
+import "strings"
+
 // User represent a go-wiki user. It encapsulate its unique identifier, first and
 // last names, email and age
 type User struct {
@@ -16,7 +18,7 @@ func TestUser() User {
 		id:        42,
 		firstName: "John",
 		lastName:  "Doe",
-		email:     "jddd@mail.com",
+		email:     "jddddSZ@mail.com",
 		age:       42,
 	}
 }
@@ -25,9 +27,9 @@ func TestUser() User {
 func NewUser(id, age int, first, last, email string) User {
 	return User{
 		id:        id,
-		firstName: first,
+		firstName: strings.Title(first),
-		lastName:  last,
+		lastName:  strings.Title(last),
-		email:     email,
+		email:     strings.ToLower(email),
 		age:       age,
 	}
 }
@@ -37,11 +39,6 @@ func (u User) ID() int {
 	return u.id
 }
 
-// // SetID is a setter
-// func (u *User) SetID(id int) {
-// 	u.id = id
-// }
-
 // FirstName is a getter
 func (u User) FirstName() string {
 	return u.firstName
@@ -57,7 +54,12 @@ func (u User) Email() string {
 	return u.email
 }
 
-// FirstName is a getter
+// SetEmail is a setter
+func (u *User) SetEmail(email string) {
+	u.email = strings.ToLower(email)
+}
+
+// Age is a getter
 func (u User) Age() int {
 	return u.age
 }

views/render.go

@@ -0,0 +1,27 @@
+package views
+
+import (
+	"net/http"
+	"text/template"
+
+	"github.com/rjNemo/go-wiki/model"
+	"github.com/rjNemo/go-wiki/settings"
+)
+
+func Template(w http.ResponseWriter, tmpl string, p *model.Page) {
+	// err := templates.ExecuteTemplate(w, "templates/"+tmpl+".html", p)
+	t, err := template.ParseFiles(getTmplName("base"), getTmplName(tmpl))
+	checkError(err, w)
+	err = t.Execute(w, p)
+	checkError(err, w)
+}
+
+func getTmplName(tmpl string) string {
+	return settings.TmplDir + tmpl + ".html"
+}
+
+// var templates = template.Must(template.ParseFiles("templates/edit.html", "templates/view.html")) // add slice of fileNAmes
+
+// func ParseTemplates() *template.Template {
+// 	return template.Must(template.ParseFiles("templates/edit.html", "templates/view.html")) // add slice of fileNAmes
+// }

views/templates/love.html

@@ -0,0 +1 @@
+<h1>Hi there, I love {{.Title}}</h1>