vue框架前後端分離專案之課程頁面前端、課程表分析、編寫及資料錄入等相關內容-126

阿新 • • 發佈：2021-01-11

1 課程頁面前端

<script>
  import Header from "@/components/Header"
  // import Footer from "@/components/Footer"

  export default {
    name: "Course",
    data() {
      return {
        category: 0,
       }
     },
    components: {
      Header,
      // Footer,
     }
   }
</script>

<style scoped>
   .course {
    background: #f6f6f6;
   }

   .course .main {
    width: 1100px;
    margin: 35px auto 0;
   }

   .course .condition {
    margin-bottom: 35px;
    padding: 25px 30px 25px 20px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 4px 0 #f0f0f0;
   }

   .course .cate-list {
    border-bottom: 1px solid #333;
    border-bottom-color: rgba(51, 51, 51, .05);
    padding-bottom: 18px;
    margin-bottom: 17px;
   }

   .course .cate-list::after {
    content: "";
    display: block;
    clear: both;
   }

   .course .cate-list li {
    float: left;
    font-size: 16px;
    padding: 6px 15px;
    line-height: 16px;
    margin-left: 14px;
    position: relative;
    transition: all .3s ease;
    cursor: pointer;
    color: #4a4a4a;
    border: 1px solid transparent; /* transparent 透明 */
   }

   .course .cate-list .title {
    color: #888;
    margin-left: 0;
    letter-spacing: .36px;
    padding: 0;
    line-height: 28px;
   }

   .course .cate-list .this {
    color: #ffc210;
    border: 1px solid #ffc210 !important;
    border-radius: 30px;
   }

   .course .ordering::after {
    content: "";
    display: block;
    clear: both;
   }

   .course .ordering ul {
    float: left;
   }

   .course .ordering ul::after {
    content: "";
    display: block;
    clear: both;
   }

   .course .ordering .condition-result {
    float: right;
    font-size: 14px;
    color: #9b9b9b;
    line-height: 28px;
   }

   .course .ordering ul li {
    float: left;
    padding: 6px 15px;
    line-height: 16px;
    margin-left: 14px;
    position: relative;
    transition: all .3s ease;
    cursor: pointer;
    color: #4a4a4a;
   }

   .course .ordering .title {
    font-size: 16px;
    color: #888;
    letter-spacing: .36px;
    margin-left: 0;
    padding: 0;
    line-height: 28px;
   }

   .course .ordering .this {
    color: #ffc210;
   }

   .course .ordering .price {
    position: relative;
   }

   .course .ordering .price::before,
   .course .ordering .price::after {
    cursor: pointer;
    content: "";
    display: block;
    width: 0px;
    height: 0px;
    border: 5px solid transparent;
    position: absolute;
    right: 0;
   }

   .course .ordering .price::before {
    border 
-bottom: 5px solid #aaa;
    margin-bottom: 2px;
    top: 2px;
   }

   .course .ordering .price::after {
    border-top: 5px solid #aaa;
    bottom: 2px;
   }

   .course .course-item:hover {
    box-shadow: 4px 6px 16px rgba(0, 0, 0, .5);
   }

   .course .course-item {
    width: 1100px;
    background: #fff;
    padding:  
20px 30px 20px 20px;
    margin-bottom: 35px;
    border-radius: 2px;
    cursor: pointer;
    box-shadow: 2px 3px 16px rgba(0, 0, 0, .1);
    /* css3.0 過渡動畫 hover 事件操作 */
    transition: all .2s ease;
   }

   .course .course-item::after {
    content: "";
    display: block;
    clear: both;
   }

  /* 頂級元素 父級元素 當前元素{} */ 

   .course .course-item .course-image {
    float: left;
    width: 423px;
    height: 210px;
    margin-right: 30px;
   }

   .course .course-item .course-image img {
    width: 100%;
   }

   .course .course-item .course-info {
    float: left;
    width: 596px;
   }

   .course-item .course-info h3 {
    font-size: 26px;
    color: #333;
    font-weight: normal;
    margin-bottom: 8px;
   }

   .course-item .course-info h3 span {
    font-size: 14px;
    color: #9b9b9b;
    float: right;
    margin-top: 14px;
   }

   .course-item .course-info h3 span img {
    width: 11px;
    height: auto;
    margin-right: 7px;
   }

   .course-item .course-info .teather-info {
    font-size: 14px;
    color: #9b9b9b;
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid #333;
    border-bottom-color: rgba(51, 51, 51, .05);
   }

   .course-item .course-info .teather-info span {
    float: right;
   }

   .course-item .lesson-list::after {
    content: "";
    display: block;
    clear: both;
   }

   .course-item .lesson-list li {
    float: left;
    width: 44%;
    font-size: 14px;
    color: #666;
    padding-left: 22px;
    /* background: url("路徑") 是否平鋪 x軸位置 y軸位置 */
    background: url("/src/assets/img/play-icon-gray.svg") no-repeat left 4px;
    margin-bottom: 15px;
   }

   .course-item .lesson-list li .lesson-title {
    /* 以下3句，文字內容過多，會自動隱藏，並顯示省略符號 */
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    display: inline-block;
    max-width: 200px;
   }

   .course-item .lesson-list li:hover {
    background-image: url("/src/assets/img/play-icon-yellow.svg");
    color: #ffc210;
   }

   .course-item .lesson-list li .free {
    width: 34px;
    height: 20px;
    color: #fd7b4d;
    vertical-align: super;
    margin-left: 10px;
    border: 1px solid #fd7b4d;
    border-radius: 2px;
    text-align: center;
    font-size: 13px;
    white-space: nowrap;
   }

   .course-item .lesson-list li:hover .free {
    color: #ffc210;
    border-color: #ffc210;
   }

   .course-item .pay-box::after {
    content: "";
    display: block;
    clear: both;
   }

   .course-item .pay-box .discount-type {
    padding: 6px 10px;
    font-size: 16px;
    color: #fff;
    text-align: center;
    margin-right: 8px;
    background: #fa6240;
    border: 1px solid #fa6240;
    border-radius: 10px 0 10px 0;
    float: left;
   }

   .course-item .pay-box .discount-price {
    font-size: 24px;
    color: #fa6240;
    float: left;
   }

   .course-item .pay-box .original-price {
    text-decoration: line-through;
    font-size: 14px;
    color: #9b9b9b;
    margin-left: 10px;
    float: left;
    margin-top: 10px;
   }

   .course-item .pay-box .buy-now {
    width: 120px;
    height: 38px;
    background: transparent;
    color: #fa6240;
    font-size: 16px;
    border: 1px solid #fd7b4d;
    border-radius: 3px;
    transition: all .2s ease-in-out;
    float: right;
    text-align: center;
    line-height: 38px;
   }

   .course-item .pay-box .buy-now:hover {
    color: #fff;
    background: #ffc210;
    border: 1px solid #ffc210;
   }
</style>

2 課程表分析，編寫


1 免費課：FreeCourse
2 實戰課：ActualCourse
3 輕課：LiteCourse

4 以實戰課為例，寫一套流程
    -實戰課有哪些欄位，關聯表
  
  -課程分類表
  -實戰課表
  -章節表
  -課時表
  -老師表
  
  
  
  
from utils.models import BaseModel

# 分類表：繼承BaseModel
class CourseCategory(BaseModel):
  """分類"""
  name = models.CharField(max_length=64, unique=True, verbose_name="分類名稱")
  class Meta:
    db_table = "luffy_course_category"
    verbose_name = "分類"
    verbose_name_plural = verbose_name

  def __str__(self):
    return "%s" % self.name

class Course(BaseModel):
  """課程"""
  course_type = (
     (0, '付費'),
     (1, 'VIP專享'),
     (2, '學位課程')
   )
  level_choices = (
     (0, '初級'),
     (1, '中級'),
     (2, '高階'),
   )
  status_choices = (
     (0, '上線'),
     (1, '下線'),
     (2, '預上線'),
   )
  name = models.CharField(max_length=128, verbose_name="課程名稱")
  course_img = models.ImageField(upload_to="courses", max_length=255, verbose_name="封面圖片", blank=True, null=True)
  course_type = models.SmallIntegerField(choices=course_type, default=0, verbose_name="付費型別")

  brief = models.TextField(max_length=2048, verbose_name="詳情介紹", null=True, blank=True)
  level = models.SmallIntegerField(choices=level_choices, default=0, verbose_name="難度等級")
  pub_date = models.DateField(verbose_name="釋出日期", auto_now_add=True)
  period = models.IntegerField(verbose_name="建議學習週期(day)", default=7)
  attachment_path = models.FileField(upload_to="attachment", max_length=128, verbose_name="課件路徑", blank=True,
                    null=True)
  status = models.SmallIntegerField(choices=status_choices, default=0, verbose_name="課程狀態")



  students = models.IntegerField(verbose_name="學習人數", default=0)
  sections = models.IntegerField(verbose_name="總課時數量", default=0)
  pub_sections = models.IntegerField(verbose_name="課時更新數量", default=0)
  price = models.DecimalField(max_digits=6, decimal_places=2, verbose_name="課程原價", default=0)


  teacher = models.ForeignKey("Teacher", on_delete=models.DO_NOTHING, null=True, blank=True, verbose_name="授課老師")
  course_category = models.ForeignKey("CourseCategory", on_delete=models.SET_NULL, db_constraint=False, null=True, blank=True,
                    verbose_name="課程分類")
  class Meta:
    db_table = "luffy_course"
    verbose_name = "課程"
    verbose_name_plural = "課程"

  def __str__(self):
    return "%s" % self.name

class Teacher(BaseModel):
  """導師"""
  role_choices = (
     (0, '講師'),
     (1, '導師'),
     (2, '班主任'),
   )
  name = models.CharField(max_length=32, verbose_name="導師名")
  role = models.SmallIntegerField(choices=role_choices, default=0, verbose_name="導師身份")
  title = models.CharField(max_length=64, verbose_name="職位、職稱")
  signature = models.CharField(max_length=255, verbose_name="導師簽名", help_text="導師簽名", blank=True, null=True)
  image = models.ImageField(upload_to="teacher", null=True, verbose_name="導師封面")
  brief = models.TextField(max_length=1024, verbose_name="導師描述")

  class Meta:
    db_table = "luffy_teacher"
    verbose_name = "導師"
    verbose_name_plural = verbose_name

  def __str__(self):
    return "%s" % self.name

class CourseChapter(BaseModel):
  """章節"""
  course = models.ForeignKey("Course", related_name='coursechapters', on_delete=models.CASCADE, verbose_name="課程名稱")
  chapter = models.SmallIntegerField(verbose_name="第幾章", default=1)
  name = models.CharField(max_length=128, verbose_name="章節標題")
  summary = models.TextField(verbose_name="章節介紹", blank=True, null=True)
  pub_date = models.DateField(verbose_name="釋出日期", auto_now_add=True)

  class Meta:
    db_table = "luffy_course_chapter"
    verbose_name = "章節"
    verbose_name_plural = verbose_name

  def __str__(self):
    return "%s:(第%s章)%s" % (self.course, self.chapter, self.name)

class CourseSection(BaseModel):
  """課時"""
  section_type_choices = (
     (0, '文件'),
     (1, '練習'),
     (2, '視訊')
   )
  chapter = models.ForeignKey("CourseChapter", related_name='coursesections', on_delete=models.CASCADE,
                verbose_name="課程章節")
  name = models.CharField(max_length=128, verbose_name="課時標題")
  orders = models.PositiveSmallIntegerField(verbose_name="課時排序")
  section_type = models.SmallIntegerField(default=2, choices=section_type_choices, verbose_name="課時種類")
  section_link = models.CharField(max_length=255, blank=True, null=True, verbose_name="課時連結",
                  help_text="若是video，填vid,若是文件，填link")
  duration = models.CharField(verbose_name="視訊時長", blank=True, null=True, max_length=32) # 僅在前端展示使用
  pub_date = models.DateTimeField(verbose_name="釋出時間", auto_now_add=True)
  free_trail = models.BooleanField(verbose_name="是否可試看", default=False)

  class Meta:
    db_table = "luffy_course_Section"
    verbose_name = "課時"
    verbose_name_plural = verbose_name

  def __str__(self):
    return "%s-%s" % (self.chapter, self.name)

3 課程表資料錄入


-- 導師資料
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (1, 1, 1, 0, '2019-07-14 13:44:19.661327', '2019-07-14 13:46:54.246271', 'Alex', 1, '老男孩Python教學總監', '金角大王', 'teacher/alex_icon.png', '老男孩教育CTO & CO-FOUNDER 國內知名PYTHON語言推廣者 51CTO學院2016\2017年度最受學員喜愛10大講師之一 多款開源軟體作者 曾任職公安部、飛信、中金公司、NOKIA中國研究院、華爾街英語、ADVENT、汽車之家等公司');
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (2, 2, 1, 0, '2019-07-14 13:45:25.092902', '2019-07-14 13:45:25.092936', 'Mjj', 0, '前美團前端專案組架構師', NULL, 'teacher/mjj_icon.png', '是馬JJ老師, 一個集美貌與才華於一身的男人，搞過幾年IOS，又轉了前端開發幾年，曾就職於美團網任高階前端開發，後來因為不同意王興(美團老闆)的戰略佈局而出家做老師去了，有豐富的教學經驗，開起車來也毫不含糊。一直專注在前端的前沿技術領域。同時，愛好抽菸、喝酒、燙頭(錫紙燙)。 我的最愛是前端，因為前端妹子多。');
INSERT INTO luffy_teacher(id, orders, is_show, is_delete, created_time, updated_time, name, role, title, signature, image, brief) VALUES (3, 3, 1, 0, '2019-07-14 13:46:21.997846', '2019-07-14 13:46:21.997880', 'Lyy', 0, '老男孩Linux學科帶頭人', NULL, 'teacher/lyy_icon.png', 'Linux運維技術專家，老男孩Linux金牌講師，講課風趣幽默、深入淺出、聲音洪亮到爆炸');





-- 分類表

INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (1, 1, 1, 0, '2019-07-14 13:40:58.690413', '2019-07-14 13:40:58.690477', 'Python');

INSERT INTO luffy_course_category(id, orders, is_show, is_delete, created_time, updated_time, name) VALUES (2, 2, 1, 0, '2019-07-14 13:41:08.249735', '2019-07-14 13:41:08.249817', 'Linux');
-- 課程表

INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (1, 1, 1, 0, '2019-07-14 13:54:33.095201', '2019-07-14 13:54:33.095238', 'Python開發21天入門', 'courses/alex_python.png', 0, 'Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土&&&Python從入門到入土', 0, '2019-07-14', 21, '', 0, 231, 120, 120, 0.00, 1, 1);

INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (2, 2, 1, 0, '2019-07-14 13:56:05.051103', '2019-07-14 13:56:05.051142', 'Python專案實戰', 'courses/mjj_python.png', 0, '', 1, '2019-07-14', 30, '', 0, 340, 120, 120, 99.00, 1, 2);

INSERT INTO luffy_course(id, orders, is_show, is_delete, created_time, updated_time, name, course_img, course_type, brief, level, pub_date, period, attachment_path, status, students, sections, pub_sections, price, course_category_id, teacher_id) VALUES (3, 3, 1, 0, '2019-07-14 13:57:21.190053', '2019-07-14 13:57:21.190095', 'Linux系統基礎5周入門精講', 'courses/lyy_linux.png', 0, '', 0, '2019-07-14', 25, '', 0, 219, 100, 100, 39.00, 2, 3);
-- 章節表

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (1, 1, 1, 0, '2019-07-14 13:58:34.867005', '2019-07-14 14:00:58.276541', 1, '計算機原理', '', '2019-07-14', 1);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (2, 2, 1, 0, '2019-07-14 13:58:48.051543', '2019-07-14 14:01:22.024206', 2, '環境搭建', '', '2019-07-14', 1);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (3, 3, 1, 0, '2019-07-14 13:59:09.878183', '2019-07-14 14:01:40.048608', 1, '專案建立', '', '2019-07-14', 2);

INSERT INTO luffy_course_chapter(id, orders, is_show, is_delete, created_time, updated_time, chapter, name, summary, pub_date, course_id) VALUES (4, 4, 1, 0, '2019-07-14 13:59:37.448626', '2019-07-14 14:01:58.709652', 1, 'Linux環境建立', '', '2019-07-14', 3);
-- 課時表

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (1, 1, 0, '2019-07-14 14:02:33.779098', '2019-07-14 14:02:33.779135', '計算機原理上', 1, 2, NULL, NULL, '2019-07-14 14:02:33.779193', 1, 1);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (2, 1, 0, '2019-07-14 14:02:56.657134', '2019-07-14 14:02:56.657173', '計算機原理下', 2, 2, NULL, NULL, '2019-07-14 14:02:56.657227', 1, 1);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (3, 1, 0, '2019-07-14 14:03:20.493324', '2019-07-14 14:03:52.329394', '環境搭建上', 1, 2, NULL, NULL, '2019-07-14 14:03:20.493420', 0, 2);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (4, 1, 0, '2019-07-14 14:03:36.472742', '2019-07-14 14:03:36.472779', '環境搭建下', 2, 2, NULL, NULL, '2019-07-14 14:03:36.472831', 0, 2);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (5, 1, 0, '2019-07-14 14:04:19.338153', '2019-07-14 14:04:19.338192', 'web專案的建立', 1, 2, NULL, NULL, '2019-07-14 14:04:19.338252', 1, 3);

INSERT INTO luffy_course_Section(id, is_show, is_delete, created_time, updated_time, name, orders, section_type, section_link, duration, pub_date, free_trail, chapter_id) VALUES (6, 1, 0, '2019-07-14 14:04:52.895855', '2019-07-14 14:04:52.895890', 'Linux的環境搭建', 1, 2, NULL, NULL, '2019-07-14 14:04:52.895942', 1, 4);

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