CRM——讲师与学生

一、课程记录和学习记录

1.初始化 course_record, study_record.
2.学习记录
3.录入成绩
4.显示成绩 ajax 查询 柱状图展示成绩 highcharts

5.上传作业(os模块)
6.下载作业

二、配置study_record

1、给学习记录配置自定义配置

class StudyConfig(ModelStark):
    def display_record(self, obj=None, header=False):
        if header:
            return "签到"
        return obj.get_record_display()     # 存的值对应的中文

    def display_score(self, obj=None, header=False):
        if header:
            return "成绩"
        return obj.get_score_display()     # 存的值对应的中文

    list_display = ["student", "course_record", display_record, display_score]

site.register(StudyRecord, StudentConfig)

  不取字段值而是拼上get和display取存的值对应的中文。

2、修改ModelStark中get_body方法全局处理记录对象包含choices情况

  在models中choices对应的是一个元组。

class ShowList(object):
    """展示页面类"""
    def get_body(self):
        """构建表单数据"""
        """代码省略"""
            # 针对choices属性
            if field_obj.choices:
                val = getattr(obj, "get_" + field + "_display")
            else:
                val = getattr(obj, field)   # 拿到的关联对象  处理不了多对多

##################自定义配置#############
class StudyConfig(ModelStark):
    list_display = ["student", "course_record", "record", "score"]

site.register(StudyRecord, StudentConfig)

  录入学习记录:

  

三、批量生成学习记录

1、定制CourseRecod批量功能

class CourseRecordConfig(ModelStark):
    list_display = ["class_obj", "day_num", "teacher"]

    def patch_studyRecord(self, request, queryset):
        print("=====>",queryset)
        """
        提交批量操作获取的queryset
        <QuerySet [<CourseRecord: python基础(9期) day94>, <CourseRecord: python基础(9期) day95>]>
        """
        temp = []
        for course_record in queryset:
            # 过滤出班级所有的学生  学生表classlist关联班级表
            student_list = Student.objects.filter(class_list__id=course_record.class_obj.pk)   # 学生的班级id和课程记录班级的id进行比对  拿到班级所有的学生
            for student in student_list:   # 拿到学生对象
                obj = StudyRecord(student=student, course_record=course_record)
                temp.append(obj)

        StudyRecord.objects.bulk_create(temp)   # 批量插入

    actions = [patch_studyRecord, ]
    patch_studyRecord.short_description = "批量生产学习记录"
    """
    def get_action_list(self):
        # 获取自定义批量操作
        temp = []
        for action in self.actions:
            temp.append({
                "name": action.__name__,    # 函数.__name__:拿到函数名
                "desc": action.short_description
            })  # [{"name": "patch_init", "desc": "批量处理"}]
        return temp
    """

site.register(CourseRecord, CourseRecordConfig)

  注意

(1)批量插入操作:

StudyRecord.objects.bulk_create(temp)

(2)跨表查询班级所有的学生

# 过滤出班级所有的学生  学生表classlist关联班级表
student_list = Student.objects.filter(class_list__id=course_record.class_obj.pk)   # 学生的班级id和课程记录班级的id进行比对  拿到班级所有的学生

  过滤course_record关联的班级对应的所有的学生。

(3)批量操作别名描述short_description

  这是由于在Modelstark中源码get_action_list有关于action别名的配置:

def get_action_list(self):
    # 获取自定义批量操作
    temp = []
    for action in self.actions:
        temp.append({
            "name": action.__name__,    # 函数.__name__:拿到函数名
            "desc": action.short_description
        })  # [{"name": "patch_init", "desc": "批量处理"}]
    return temp

2、批量生成学习记录

  

  学习记录生产成功:

  

四、学习记录筛选查看

1、studyrecord/?course_record=%s过滤

  根据课程记录来过滤学习记录,这个需要修改service/stark.py中的get_filter_condition。因为这个其实也是一种filter过滤,但并没有写在filter_list中。

class ModelStark(object):
    def get_filter_condition(self, request):
        """拿到过滤条件"""
        filter_condition = Q()  # 默认查询条件为且 and

        for filter_field, val in request.GET.items():   # 过滤字段、查询的值  去除fitler_field拼接的__id
            # if filter_field in self.list_filter:  # 仅限过滤使用,只处理filter过滤列表的键值
            if filter_field != "page":   # (分页等排除)  ?page=2&course_record=1
                filter_condition.children.append((filter_field, val))   # 添加的是一个元组

        return filter_condition

  修改后仅排除了?page=1这样的情况,可以在页面上访问http://127.0.0.1:8000/stark/crm/studyrecord/?course_record=2拿到过滤结果:

  

2、添加按钮实现条件过滤查看

class CourseRecordConfig(ModelStark):
    # 定制一栏新的表格
    def record(self, obj=None, header=False):
        if header:
            return "checked"
        return mark_safe("<a href='/stark/crm/studyrecord/?course_record=%s'>记录</a>" % obj.pk)    # mark_safe取消转义

    list_display = ["class_obj", "day_num", "teacher", record]

    def patch_studyRecord(self, request, queryset):
        temp = []
        for course_record in queryset:
            # 过滤course_record关联的班级对应的所有的学生  学生表classlist关联班级表
            student_list = Student.objects.filter(class_list__id=course_record.class_obj.pk)   # 学生的班级id和课程记录班级的id进行比对  拿到班级所有的学生
            for student in student_list:   # 拿到学生对象
                obj = StudyRecord(student=student, course_record=course_record)
                temp.append(obj)
        StudyRecord.objects.bulk_create(temp)   # 批量插入

    actions = [patch_studyRecord, ]
    patch_studyRecord.short_description = "批量生产学习记录"

site.register(CourseRecord, CourseRecordConfig)

  课程记录页面:

  

  点击记录跳转学习记录页面:

  

五、考勤点名

  给学习记录订制迟到批量操作

class StudyConfig(ModelStark):
    list_display = ["student", "course_record", "record", "score"]
    def patch_late(self, request, queryset):
        queryset.update(record="late")

    patch_late.short_description = "迟到"
    actions = [patch_late, ]

site.register(StudyRecord, StudyConfig)

  批量调整上课记录为迟到:

  

六、录入成绩

1、在课程记录页面添加录入成绩栏(扩展新的url)

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        return HttpResponse("score")

    def extra_url(self):
        """扩展考勤记录url"""
        temp = []
        temp.append(url(r"record_score/(\d+)", self.score))
        return temp

    # 定制一栏新的表格
    def record(self, obj=None, header=False):
        if header:
            return "考勤"
        return mark_safe("<a href='/stark/crm/studyrecord/?course_record=%s'>记录</a>" % obj.pk)    # mark_safe取消转义

    def record_score(self, obj=None, header=False):
        if header:
            return "录入成绩"
        # http://127.0.0.1:8000/stark/crm/studyrecord/?course_record=1  CourseRecord主键值
        return mark_safe("<a href='record_score/%s'>录入成绩</a>" % obj.pk)

    list_display = ["class_obj", "day_num", "teacher", record, record_score]
    
    def patch_studyRecord(self, request, queryset):
        """代码省略"""

 注意:

(1)定制record_score函数添加录入成绩项目栏

def record_score(self, obj=None, header=False):
    if header:
        return "录入成绩"
    # http://127.0.0.1:8000/stark/crm/studyrecord/?course_record=1  CourseRecord主键值
    return mark_safe("<a href='record_score/%s'>录入成绩</a>" % obj.pk)

(2)定制录入成绩扩展路由和视图

def score(self, request, course_record_id):
    return HttpResponse("score")

def extra_url(self):
    """扩展考勤记录url"""
    temp = []
    temp.append(url(r"record_score/(\d+)", self.score))
    return temp

(3)测试验证

  

  点击录入成绩,跳转对应页面:

  

2、处理score视图函数

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        study_record_list = StudyRecord.objects.filter(course_record=course_record_id)   # 过滤出对应课程(哪个班级哪一天)的学习记录

        score_choices = StudyRecord.score_choices
        return render(request, "score.html", locals())

注意:

(1)study_record_list拿到对应课程的学习记录(哪一天哪个班级)

(2)score_choices拿到StudyRecord的score_choices字段内容传递给模板

3、构建录入成绩页面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.css">
    <script src="/static/js/jquery-1.12.4.min.js"></script>
</head>
<body>
<h3>录入成绩</h3>
<div class="container">
    <div class="row">
        <div class="col-md-9 col-md-offset-1">
            <form action="" method="post">
                {% csrf_token %}
                <table class="table table-bordered table-striped">
                <thead>
                    <tr>
                        <th>学生姓名</th>
                        <th>考勤</th>
                        <th>成绩</th>
                        <th>批语</th>
                    </tr>
                </thead>
                <tbody>
                    {% for study_record in study_record_list %}
                        <tr>
                            <td>{{ study_record.student }}</td>
                            {# <td>{{ study_record.record }}</td>   针对带有choices的字段使用拼接get和display #}
                            <td>{{ study_record.get_record_display }}</td>
                            <td style="width: 150px; padding: 10px 20px;">
                                <select name="" id="" class="form-control">
                                    {% for item in score_choices %}
                                        <option value="{{ item.0 }}">{{ item.1 }}</option>
                                    {% endfor %}
                                </select>
                            </td>
                            <td>
                                <textarea name="" id="" cols="30" rows="4" class="form-control"></textarea>
                            </td>
                        </tr>
                    {% endfor %}

                </tbody>
            </table>
                <input type="submit" class="btn btn-default pull-right">
            </form>
        </div>
    </div>
</div>
</body>
</html>
score.html

注意:

(1)考勤栏显示中文

  针对Model中的record字段:

record = models.CharField("上课纪录", choices=record_choices, default="checked", max_length=64)

  要显示迟到签到信息需要拼接get和display取值

{# <td>{{ study_record.record }}</td>   针对带有choices的字段使用拼接get和display #}
<td>{{ study_record.get_record_display }}</td>

  显示效果:

  

(2)成绩显示为一个个option对象点选操作

<td style="width: 150px; padding: 10px 20px;">
    <select name="score" id="" class="form-control">
        {% for item in score_choices %}
            <option value="{{ item.0 }}">{{ item.1 }}</option>
        {% endfor %}
    </select>
</td>

  item.0拿到score_choices中每个元组的第一个值即分数,item.1拿到元组第二个值即评分等级。显示效果如下:

  

(3)用textarea渲染批语栏

<td>
    <textarea name="homework_note" id="" cols="30" rows="4" class="form-control"></textarea>
</td>

  显示效果如下所示:

  

(4)订制表单和提交按钮

<body>
<h3>录入成绩</h3>
<div class="container">
    <div class="row">
        <div class="col-md-9">
            <form action="" method="post">
                {% csrf_token %}
                <table class="table table-bordered table-striped"....>
                <input type="submit" class="btn btn-default pull-right">
            </form>
        </div>
    </div>
</div>
</body>

  显示效果:

  

4、视图函数处理post请求

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        if request.method == "POST":
            # print(request.POST)
            # <QueryDict: {'csrfmiddlewaretoken': ['20Zp72PlKJzRZ6HAYkMX0veCIxynx5nogd8LsKKkdZb7mRLrAb1KtN1PDTljh7Jq'], 'score_4': ['70'], 'homework_note_4': ['学习理解能力差'], 'score_5': ['40'], 'homework_note_5': ['无纪律无组织'], 'score_6': ['90'], 'homework_note_6': ['学习能力优秀']}>
            for key, value in request.POST.items():
                if key == "csrfmiddlewaretoken":
                    continue
                # 分隔score_1为例,score为字段  1为某一个学生学习记录的pk值
                field, pk = key.rsplit("_", 1)  # 从右开始以"_"分隔数据,且仅分隔一次
                if field == "score":
                    StudyRecord.objects.filter(pk=pk).update(score=value)
                else:
                    StudyRecord.objects.filter(pk=pk).update(homework_note=value)
            return redirect(request.path)  # 拿到当前POST请求路径重定向GET请求
        else:
            study_record_list = StudyRecord.objects.filter(course_record=course_record_id)   # 过滤出对应课程(哪个班级哪一天)的学习记录

            score_choices = StudyRecord.score_choices
            return render(request, "score.html", locals())

  同时还伴随有score.html的变更:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.css">
    <script src="/static/js/jquery-1.12.4.min.js"></script>
</head>
<body>
<h3>录入成绩</h3>
<div class="container">
    <div class="row">
        <div class="col-md-9 col-md-offset-1">
            <form action="" method="post">
                {% csrf_token %}
                <table class="table table-bordered table-striped">
                    <thead>
                    <tr>
                        <th>学生姓名</th>
                        <th>考勤</th>
                        <th>成绩</th>
                        <th>批语</th>
                    </tr>
                    </thead>
                    <tbody>
                    {% for study_record in study_record_list %}
                        <tr>
                            <td>{{ study_record.student }}</td>
                            {# <td>{{ study_record.record }}</td>   针对带有choices的字段使用拼接get和display #}
                            <td>{{ study_record.get_record_display }}</td>
                            <td style="width: 150px; padding: 10px 20px;">
                                <select name="score_{{ study_record.pk }}" id="" class="form-control">
                                    {% for item in score_choices %}
                                        {% if study_record.score == item.0 %}
                                            {# 当前成绩等于item.0#}
                                            <option selected value="{{ item.0 }}">{{ item.1 }}</option>
                                        {% endif %}
                                        <option value="{{ item.0 }}">{{ item.1 }}</option>
                                    {% endfor %}
                                </select>
                            </td>
                            <td>
                                <textarea name="homework_note_{{ study_record.pk }}" id="" cols="30" rows="4"
                                          class="form-control">{{ study_record.homework_note }}</textarea>
                            </td>
                        </tr>
                    {% endfor %}
                    </tbody>
                </table>
                <input type="submit" class="btn btn-default pull-right">
            </form>
        </div>
    </div>
</div>
</body>
</html>
View Code

(1)分析表单提交的数据

  直接在上面的成绩录入页面提交POST请求:

  

  在视图中接收POST请求,打印接收的request.POST数据:

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        if request.method == "POST":
            print(request.POST)
            """
            <QueryDict: {'csrfmiddlewaretoken': ['UMfON3mW1TKIMCqWI3fqOUuRaqP9ggoL8Zoa8LhVu9mY9nuNkUudhch45MC50iKN'], 
            'score': ['60', '80', '90'], 'homework_note': ['朽木不可雕', '学习自觉性较差', '学习认真刻苦']}>
            """
            return HttpResponse("123")

  这是由于所有的成绩select标签name="score",所有批语textarea标签name="homework_note",一个键对应三个值,三个值组成数组。导致无法区分谁是谁的成绩和批语。

(2)修改select标签和textarea标签name生成规则

<td style="width: 150px; padding: 10px 20px;">
    <select name="score_{{ study_record.pk }}" id="" class="form-control">
        {% for item in score_choices %}
            <option value="{{ item.0 }}">{{ item.1 }}</option>
        {% endfor %}
    </select>
</td>
<td>
    <textarea name="homework_note_{{ study_record.pk }}" id="" cols="30" rows="4" class="form-control"></textarea>
</td>

  重新提交表单,request.POST获取的数据如下:

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        if request.method == "POST":
            print(request.POST)
            # <QueryDict: {'csrfmiddlewaretoken': ['20Zp72PlKJzRZ6HAYkMX0veCIxynx5nogd8LsKKkdZb7mRLrAb1KtN1PDTljh7Jq'], 'score_4': ['70'], 'homework_note_4': ['学习理解能力差'], 'score_5': ['40'], 'homework_note_5': ['无纪律无组织'], 'score_6': ['90'], 'homework_note_6': ['学习能力优秀']}>

  如上所示键带有自己的id值,可以更好地去录入成绩,完成处理更新操作。

(3)splice()和rsplice方法

  Python split() 通过指定分隔符对字符串进行切片,如果参数 num 有指定值,则仅分隔 num 个子字符串。

print("yuan_alex_egon".split("_", 1))   # 只分一次
print("yuan_alex_egon".split("_", 2))   # 分两次
print("yuan_alex_egon".rsplit("_",1))   # 从右边开始分一次
"""
['yuan', 'alex_egon']
['yuan', 'alex', 'egon']
['yuan_alex', 'egon']
"""

(4)循环处理reques.POST

for key, value in request.POST.items():
    if key == "csrfmiddlewaretoken":
        continue
    # 分隔score_1为例,score为字段  1为某一个学生学习记录的pk值
    field, pk = key.rsplit("_", 1)  # 从右开始以"_"分隔数据,且仅分隔一次
    if field == "score":
        StudyRecord.objects.filter(pk=pk).update(score=value)
    else:
        StudyRecord.objects.filter(pk=pk).update(homework_note=value)

(5)重定向到POST请求当前页面

def score(self, request, course_record_id):
    if request.method == "POST":
        """代码省略"""
        return redirect(request.path)  # 拿到当前POST请求路径重定向GET请求

(6)get页面渲染显示之前提交信息为默认值

<td style="width: 150px; padding: 10px 20px;">
    <select name="score_{{ study_record.pk }}" id="" class="form-control">
        {% for item in score_choices %}
            {% if study_record.score == item.0 %}
            {# 当前成绩等于item.0#}
                <option selected value="{{ item.0 }}">{{ item.1 }}</option>
            {% endif %}
            <option value="{{ item.0 }}">{{ item.1 }}</option>
        {% endfor %}
    </select>
</td>
<td>
    <textarea name="homework_note_{{ study_record.pk }}" id="" cols="30" rows="4" class="form-control">{{ study_record.homework_note }}</textarea>
</td>

  这样在POST请求提交后,get请求获取的当前页面,页面保留之前录入的数据。

5、数据结构调整性能优化

class CourseRecordConfig(ModelStark):
    def score(self, request, course_record_id):
        if request.method == "POST":
            data = {}
            for key, value in request.POST.items():   # 键、值
                if key == "csrfmiddlewaretoken":
                    continue
                # 分隔score_1为例,score为字段  1为某一个学生学习记录的pk值
                field, pk = key.rsplit("_", 1)  # 从右开始以"_"分隔数据,且仅分隔一次   字段、主键

                # dic = {1:{"homework_note":"", "score":90}, 2:{"homework_note": "", "score": 76}}
                if pk in data:
                    # 第一次加入字典
                    data[pk][field] = value
                else:
                    # pk已经保存在字典中
                    data[pk] = {field: value}

            print("data", data)  # data {'4': {'score': '100', 'homework_note': 'dsfe '}, '5': {'score': '85', 'homework_note': 'asd a'}, '6': {'score': '50', 'homework_note': 'adad w'}}

            for pk, update_data in data.items():   # 主键、更新数据
                StudyRecord.objects.filter(pk=pk).update(**update_data)

            return redirect(request.path)  # 拿到当前POST请求路径重定向GET请求

(1)将数据调整为字典套字典的格式

def score(self, request, course_record_id):
    if request.method == "POST":
        data = {}
        for key, value in request.POST.items():   # 键、值
            if key == "csrfmiddlewaretoken":
                continue
            # 分隔score_1为例,score为字段  1为某一个学生学习记录的pk值
            field, pk = key.rsplit("_", 1)  # 从右开始以"_"分隔数据,且仅分隔一次   字段、主键

            # dic = {1:{"homework_note":"", "score":90}, 2:{"homework_note": "", "score": 76}}
            if pk in data:
                # 第一次加入字典
                data[pk][field] = value
            else:
                # pk已经保存在字典中
                data[pk] = {field: value}

        print("data", data)  # data {'4': {'score': '100', 'homework_note': 'dsfe '}, '5': {'score': '85', 'homework_note': 'asd a'}, '6': {'score': '50', 'homework_note': 'adad w'}}

(2)更新数据

for pk, update_data in data.items():   # 主键、更新数据
    StudyRecord.objects.filter(pk=pk).update(**update_data)

  update()方法对于任何结果集均有效,可以同时更新多条记录。

七、显示成绩 ajax 查询 柱状图展示成绩 highcharts

1、给学生表定制成绩查询(扩展视图和url)

class StudentConfig(ModelStark):
    def score_view(self, request, sid):   # sid:当前学生的id
        """扩展视图"""
        student = Student.objects.filter(pk=sid).first()
        class_list = student.class_list.all()     # 班级列表
        return render(request, "score_view.html", locals())

    def extra_url(self):
        """扩展路由"""
        temp = []
        temp.append(url((r"score_view/(\d+)"), self.score_view))
        return temp

    def score_show(self, obj=None, header=False):
        """查看成绩"""
        if header:
            return "查看成绩"
        return mark_safe("<a href='/stark/crm/student/score_view/%s'>查看成绩</a>" % obj.pk)

    list_display = ['customer', 'class_list', score_show]
    list_display_links = ['customer']

site.register(Student, StudentConfig)

  显示效果:

  

2、成绩展示模板设计

  score_view.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.css">
    <script src="/static/js/jquery-1.12.4.min.js"></script>
</head>
<body>
<h3>查看{{ student }}成绩</h3>
<div class="container">
    <div class="row">
        <div class="col-md-9 col-md-offset-1">
            <table class="table table-bordered table-striped">
                <thead>
                <tr>
                    <th>班级</th>
                    <th>班主任</th>
                    <th>任课老师</th>
                    <th>课程成绩</th>
                </tr>
                </thead>
                <tbody>
                    {% for cls in class_list %}
                        <tr>
                            {# 班级名称:class_list.__str__ #}
                            <td>{{ cls }}</td>
                            <td>{{ cls.tutor }}</td>
                            <td>
                                {% for teacher in cls.teachers.all %}
                                    <span>{{ teacher }}</span>,
                                {% endfor %}
                            </td>
                            <td>
                                <a class="check_chart"><span>点击查看</span></a>
                            </td>
                        </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
</div>
</body>
</html>

  展示效果:

  

3、给点击查看绑定事件

<script>
    // check_chart绑定事件
    $(".check_chart").click(function () {
        $.ajax({
            url: "",   // 走当前
            type: "get",
            data:{
                sid: $(this).attr("sid"),
                cid: $(this).attr("cid"),
            },
            success:function (data) {
                console.log(data);
            }
        })
    })
</script>

(1)给点击查看a标签添加sid和cid属性

<td>
    <a class="check_chart" cid="{{ cls.pk }}" sid="{{ student.pk }}"><span>点击查看</span></a>
</td>

  其中sid是学生id,cid是班级id。

(2)给视图发送ajax,获取学生对应课程的所有学习记录

class StudentConfig(ModelStark):
    def score_view(self, request, sid):   # sid:当前学生的id
        """扩展视图"""
        if request.is_ajax():
            # 处理ajax请求
            print(request.GET)
            sid = request.GET.get("sid")
            cid = request.GET.get("cid")
            # 去studyrecord查看学生对应课程所有学习记录  课程需要跨表查询
            study_record_list = StudyRecord.objects.filter(student=sid, course_record__class_obj=cid)
        else:
            student = Student.objects.filter(pk=sid).first()
            class_list = student.class_list.all()     # 班级列表
            return render(request, "score_view.html", locals())

4、使用highchart插件显示成绩

(1)下载引入highchart

  地址:https://www.hcharts.cn下载程序包后,将压缩包下code文件夹拷贝到项目crm/static目录下,并改名为chart.

  

  在score_view.html中引入highcharts.js:

<head>
    #省略#
    <script src="/static/chart/highcharts.js"></script>
</head>

(2)设计柱状图

  

(3)将显示柱状图放入ajax中处理

<body>
<h3>查看{{ student }}成绩</h3>
<div class="container"...>
<div id="container" style="min-width:400px;height:400px"></div>
<script>
    // check_chart绑定事件
    $(".check_chart").click(function () {
        $.ajax({
            url: "",   // 走当前
            type: "get",
            data: {
                sid: $(this).attr("sid"),
                cid: $(this).attr("cid"),
            },
            success: function (data) {
                // 显示柱状图
                var chart = Highcharts.chart('container', {
                    chart: {
                        type: 'column'
                    },
                    title: {
                        text: '查看成绩'
                    },
                    subtitle: {
                        text: '数据截止 2017-03,来源: <a href="https://en.wikipedia.org/wiki/List_of_cities_proper_by_population">Wikipedia</a>'
                    },
                    xAxis: {   // 横坐标
                        type: 'category',
                        labels: {
                            rotation: -45  // 设置轴标签旋转角度
                        }
                    },
                    yAxis: {   // 纵坐标
                        min: 0,
                        title: {
                            text: '分数'
                        }
                    },
                    legend: {
                        enabled: false
                    },
                    tooltip: {   // 鼠标悬浮显示
                        pointFormat: '分数: <b>{point.y:.2f}</b>'
                    },
                    series: [{
                        name: '成绩',
                        data: data,
                        dataLabels: {
                            enabled: true,
                            rotation: -90,
                            color: '#FFFFFF',
                            align: 'right',
                            format: '{point.y:.1f}', // :.1f 为保留 1 位小数
                            y: 10
                        }
                    }]
                });
            }
        })
    })
</script>
</body>

5、在视图处理出highcharts模板要求的data数据

from django.http import JsonResponse

class StudentConfig(ModelStark):
    def score_view(self, request, sid):   # sid:当前学生的id
        """扩展视图"""
        if request.is_ajax():
            # 处理ajax请求
            print(request.GET)
            sid = request.GET.get("sid")
            cid = request.GET.get("cid")
            # 去studyrecord查看学生对应课程所有学习记录  课程需要跨表查询
            study_record_list = StudyRecord.objects.filter(student=sid, course_record__class_obj=cid)

            data_list = []
            for study_record in study_record_list:
                day_num = study_record.course_record.day_num  # 天数
                data_list.append(["day%s" % day_num, study_record.score])    # 和highchart的data要求格式相同列表包列表
            print(data_list)   # [['day1', -1], ['day95', 80]]
            return JsonResponse(data_list, safe=False)  # 序列化不是一个字典必须改为False
        else:

            student = Student.objects.filter(pk=sid).first()
            class_list = student.class_list.all()     # 班级列表
            return render(request, "score_view.html", locals())

  注意要将数据组织为 [['day94', 100], ['day95', 50], ['day92', 85], ['day91', 90]] 这样的形式。且使用JsonResponse进行序列化,在系列化的不是一个字典时,需要修改safe=False。

6、显示效果

  

 

posted @ 2018-08-27 20:32  休耕  阅读(554)  评论(0编辑  收藏  举报