分解

2023-04-28 06:32:33 +08:00
parent eb22bf188e
commit 115d948d0f
10 changed files with 1045 additions and 422 deletions
--- a/models/Task.go
+++ b/models/Task.go
@@ -0,0 +1,137 @@
+package models
+
+import (
+	"log"
+	"main/configs"
+)
+
+type Task struct {
+	ID        int    `json:"id"`
+	Name      string `json:"name"`
+	Type      string `json:"type"`
+	CreatedAt string `json:"created_at"`
+	UpdatedAt string `json:"updated_at"`
+}
+
+func (task *Task) Create() error {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer db.Close()
+	stmt, err := db.Prepare("INSERT INTO tasks(name, type, created_at, updated_at) values(?, ?, ?, ?)")
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer stmt.Close()
+	result, err := stmt.Exec(task.Name, task.Type, task.CreatedAt, task.UpdatedAt)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	id, err := result.LastInsertId()
+	if err != nil {
+		return err
+	}
+	task.ID = int(id)
+	return nil
+}
+
+func (task *Task) Delete() error {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer db.Close()
+	stmt, err := db.Prepare("DELETE FROM tasks WHERE id = ?")
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer stmt.Close()
+	_, err = stmt.Exec(task.ID)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	return nil
+}
+
+func (task *Task) Update() error {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer db.Close()
+	stmt, err := db.Prepare("UPDATE tasks SET name = ?, type = ?, updated_at = ? WHERE id = ?")
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer stmt.Close()
+	_, err = stmt.Exec(task.Name, task.Type, task.UpdatedAt, task.ID)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	return nil
+}
+
+func (task *Task) Get() error {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	defer db.Close()
+	err = db.QueryRow("SELECT name, type, created_at, updated_at FROM tasks WHERE id = ?", task.ID).Scan(&task.Name, &task.Type, &task.CreatedAt, &task.UpdatedAt)
+	if err != nil {
+		log.Println(err)
+		return err
+	}
+	return nil
+}
+
+func QueryTasks(page int, pagesize int) (tasks []interface{}) {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	defer db.Close()
+	rows, err := db.Query("SELECT id, name, type, created_at, updated_at FROM tasks LIMIT ?, ?", (page-1)*pagesize, pagesize)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	defer rows.Close()
+	for rows.Next() {
+		task := Task{}
+		err := rows.Scan(&task.ID, &task.Name, &task.Type, &task.CreatedAt, &task.UpdatedAt)
+		if err != nil {
+			log.Println(err)
+			return
+		}
+		tasks = append(tasks, task)
+	}
+	return
+}
+
+func CountTasks() (count int) {
+	db, err := configs.GetDB()
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	defer db.Close()
+	err = db.QueryRow("SELECT COUNT(*) FROM tasks").Scan(&count)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	return
+}