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project.go
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project.go
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package dbal
import (
"database/sql"
"errors"
"time"
)
type Project struct {
Id int64
Name string
CreatedAt time.Time
}
func GetProjectById(id int64) (Project, error) {
project := Project{}
if Db == nil {
return project, errors.New("Database connection is not established.")
}
statement, err := Db.Prepare(
"SELECT `id`, `name`, `created_at` FROM `project` WHERE `id` = ?")
if err != nil {
return project, err
}
err = statement.QueryRow(id).Scan(&project.Id, &project.Name, &project.CreatedAt)
return project, err
}
func GetProjectByName(name string) (Project, error) {
project := Project{}
if Db == nil {
return project, errors.New("Database connection is not established.")
}
statement, err := Db.Prepare(
"SELECT `id`, `name`, `created_at` FROM `project` WHERE `name` = ?")
if err != nil {
return project, err
}
err = statement.QueryRow(name).Scan(&project.Id, &project.Name, &project.CreatedAt)
return project, err
}
func GetProjects() ([]Project, error) {
projects := []Project{}
if Db == nil {
return projects, errors.New("Database connection is not established.")
}
query := "SELECT `id`, `name`, `created_at` FROM `project`"
statement, err := Db.Prepare(query)
if err != nil {
return projects, err
}
var rows *sql.Rows
rows, err = statement.Query()
if err != nil {
return projects, err
}
for rows.Next() {
project := Project{}
err := rows.Scan(&project.Id, &project.Name, &project.CreatedAt)
if err != nil {
continue
}
projects = append(projects, project)
}
return projects, nil
}
func (project Project) Add() (int64, error) {
if Db == nil {
return -1, errors.New("Database connection is not established.")
}
statement, err := Db.Prepare(
"INSERT INTO `project` (`name`) VALUES (?)")
if err != nil {
return -1, err
}
result, err := statement.Exec(project.Name)
if err != nil {
return -1, err
}
lastInsertedId, err := result.LastInsertId()
if err != nil {
return -1, err
}
return lastInsertedId, nil
}
func (project Project) Remove() error {
if Db == nil {
return errors.New("Database connection is not established.")
}
project, err := GetProjectById(project.Id)
if err != nil {
return errors.New("Could not fetch project from database.")
}
statement, err := Db.Prepare("DELETE FROM `project` WHERE `id` = ?")
if err != nil {
return err
}
_, err = statement.Exec(project.Id)
return err
}