Python 使用类列表作为django_表2中表类的模型

我尝试使用与django中的数据库无关的类创建一个表，该类存储在

models.py

中，如下所示（

InfoServer

是该类）。我想做的是使用这个类使用

django_tables2

填充我的表。添加

models.Model

作为参数不是一个选项，因为我不想在数据库中保存此类

每当我在

tables.py

中定义

model=InfoServer

时，我都会遇到这个错误，我想这是因为

InfoServer

没有将

models.model

作为参数

TypeError:“object”对象的描述符“repr”需要参数

感谢您的帮助

型号.py

class TestServeur(models.Model):
    nom = models.CharField(max_length=200)
    pid = models.CharField(max_length=200)
    memoire = models.IntegerField(null=True)

class InfoServer:
    # "This is a class to test my knowledge of python"
    def __init__(self,p = '',c = 0,m = 0):
        self.pid = p
        self.cpu = c
        self.memoire = m

    def getData(self):
        return ("A server with %s memory and %s cpu" % (self.cpu,self.memoire))

def index(request):
    return HttpResponse("Hello, world. You're at the index.")

def cpu_view(request):
    liste = []
    proc1 = Popen(['ps','-eo','pid,%cpu,%mem,comm'], stdout=PIPE, stderr=PIPE)
    proc2 = Popen(['grep','java'], stdin=proc1.stdout, stdout=PIPE)
    proc1.stdout.close()

    for line in iter(proc2.stdout.readlines()):
        clean_line = line.decode("utf-8")
        info_utiles = clean_line.split()
        pid,cpu,mem,*rest = info_utiles
        i1 = InfoServer(pid,cpu,mem)
        liste.append(i1)

    table = TestServeur(liste)
    RequestConfig(request).configure(table)
    return render(request, 'server/cpu.html', {'output': table})

class TableServeur(tables.Table):
    class Meta:
        # model = InfoServer
        fields = ['pid', 'memory', 'cpu']
        template_name = 'django_tables2/bootstrap4.html'

视图.py

class TestServeur(models.Model):
    nom = models.CharField(max_length=200)
    pid = models.CharField(max_length=200)
    memoire = models.IntegerField(null=True)

class InfoServer:
    # "This is a class to test my knowledge of python"
    def __init__(self,p = '',c = 0,m = 0):
        self.pid = p
        self.cpu = c
        self.memoire = m

    def getData(self):
        return ("A server with %s memory and %s cpu" % (self.cpu,self.memoire))

def index(request):
    return HttpResponse("Hello, world. You're at the index.")

def cpu_view(request):
    liste = []
    proc1 = Popen(['ps','-eo','pid,%cpu,%mem,comm'], stdout=PIPE, stderr=PIPE)
    proc2 = Popen(['grep','java'], stdin=proc1.stdout, stdout=PIPE)
    proc1.stdout.close()

    for line in iter(proc2.stdout.readlines()):
        clean_line = line.decode("utf-8")
        info_utiles = clean_line.split()
        pid,cpu,mem,*rest = info_utiles
        i1 = InfoServer(pid,cpu,mem)
        liste.append(i1)

    table = TestServeur(liste)
    RequestConfig(request).configure(table)
    return render(request, 'server/cpu.html', {'output': table})

class TableServeur(tables.Table):
    class Meta:
        # model = InfoServer
        fields = ['pid', 'memory', 'cpu']
        template_name = 'django_tables2/bootstrap4.html'

表格.py

class TestServeur(models.Model):
    nom = models.CharField(max_length=200)
    pid = models.CharField(max_length=200)
    memoire = models.IntegerField(null=True)

class InfoServer:
    # "This is a class to test my knowledge of python"
    def __init__(self,p = '',c = 0,m = 0):
        self.pid = p
        self.cpu = c
        self.memoire = m

    def getData(self):
        return ("A server with %s memory and %s cpu" % (self.cpu,self.memoire))

def index(request):
    return HttpResponse("Hello, world. You're at the index.")

def cpu_view(request):
    liste = []
    proc1 = Popen(['ps','-eo','pid,%cpu,%mem,comm'], stdout=PIPE, stderr=PIPE)
    proc2 = Popen(['grep','java'], stdin=proc1.stdout, stdout=PIPE)
    proc1.stdout.close()

    for line in iter(proc2.stdout.readlines()):
        clean_line = line.decode("utf-8")
        info_utiles = clean_line.split()
        pid,cpu,mem,*rest = info_utiles
        i1 = InfoServer(pid,cpu,mem)
        liste.append(i1)

    table = TestServeur(liste)
    RequestConfig(request).configure(table)
    return render(request, 'server/cpu.html', {'output': table})

class TableServeur(tables.Table):
    class Meta:
        # model = InfoServer
        fields = ['pid', 'memory', 'cpu']
        template_name = 'django_tables2/bootstrap4.html'

---

正如我所看到的，

InfoServer

class不是Django模型。我也不认为你需要直接使用它。所以，您可以简单地提供一个带有字典的列表，并在带有表的模板中呈现它

首先，我们需要更新表类并从中删除元类，因为我们不打算使用任何django模型

class TableServeur(tables.Table):
    pid = tables.Column()
    memory = tables.Column()
    cpu = tables.Column()

最后，更新视图：

for line in iter(proc2.stdout.readlines()):
    clean_line = line.decode("utf-8")
    info_utiles = clean_line.split()
    pid,cpu,mem,*rest = info_utiles
    i1 = InfoServer(pid,cpu,mem)
    liste.append(i1.get_dict_data())
table = TestServeur(liste)
return render(request, 'server/cpu.html', {'output': table})

对于iter中的行（proc2.stdout.readlines（））： 清洁线=线解码（“utf-8”） info\u utiles=clean\u line.split（） pid、cpu、mem、*rest=info\u实用程序 i1=信息服务器（pid、cpu、mem） 追加（i1.get_dict_data（）） 表=TestServeur（列表） 返回呈现（请求'server/cpu.html'，{'output'：table}） 有关如何使用数据填充表的更多信息，请参阅