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Martin Hope
Almaz
Asked: 2024-11-15 20:57:59 +0000 UTC
  • 5

有一个特定的服务器位于以下地址的不同子网中ws://192.168.48.33:9090/ws/uplink/app，它通过 websocket 发送遥测数据。如何实现FastAPI服务器监听？我写了下面的代码，但它只在本地机器上监听ws://127.0.0.1:8000/ws。

主要.py

import ...

@app.websocket("/ws")
async def websocket(websocket: WebSocket):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        print(data)
python
Martin Hope
Almaz
Asked: 2024-07-05 02:31:29 +0000 UTC
  • 6

请帮忙，我无法获取数据。 {{ s.location }} 输出 my_app.Location.None

模型.py

class Si(models.Model):
    name_si = models.CharField(max_length=40, verbose_name="Наименование СИ")
    numb_man = models.CharField(max_length=30, verbose_name="Заводской номер")
    numb_inv = models.CharField(max_length=30, verbose_name="Инвентарный номер")
    location = models.ManyToManyField('Location', verbose_name="Место монтажа") #symmetrical=False,through='Moving', through_fields=('si_id','location_id')

class Location(models.Model):
    location = models.CharField(max_length=50, verbose_name="Место установки")
    lon = models.FloatField(max_length=50, verbose_name="Долгота")
    lat = models.FloatField(max_length=50, verbose_name="Широта")

视图.py

def metrolog(request):
    si = Si.objects.all()
    data = {"title": "Средства измерения", "si": si}
    return render(request, 'mnkt_app/metrolog.html', context=data)

索引.html

{% for s in si %}
    <tr>
       <td>{{ s.id }}</td>
       <td>{{ s.name_si }}</td>
       <td>{{ s.location }} </td>
    </tr>
{% endfor %}

进展甚微

索引.html

{% for s in si %}
    <tr>
       <td>{{ s.id }}</td>
       <td>{{ s.name_si }}</td>
       <td>{{ s.location.all }} </td>
    </tr>
{% endfor %}

但数据显示不正确<QuerySet [<Location: Object#1>]>。下面介绍如何仅获取安装位置对象 #1的名称

html
Martin Hope
Almaz
Asked: 2024-06-28 20:57:38 +0000 UTC
  • 5

Django 帮助我无法翻译俄语中的日期字符串 -> 数字

设置.py

LANGUAGE_CODE = 'ru-RU'
USE_I18N = True

如果 USE_I18N = False，那么一切正常，但是

索引.html

<h5 class="date_verification">{{ device.data_next_colibr }}</h5>
<script src="{% static 'js/now_date.js' %}"></script>

2024 年 6 月 21 日发布

这是js代码

now_date.js

let date_verification = document.querySelector('.date_verification');
let date = Date.parse(new Date());
let date_ru = date_verification.innerHTML
let date_ver = Date.parse(date_verification.innerHTML.slice(0, -2));


console.log(date)
console.log(date_ver)

if (date >= date_ver){
    console.log("просрочено");
    document.getElementsByClassName('date_verification')[0].style= "color: #ff0000; font-weight: bold;";
}
else {
    console.log("нормально");
    document.getElementsByClassName('date_verification')[0].style= "color: #279A2B; font-weight: bold;";
}

这就是 console.log 输出的内容

1719579296000
now_date.js:8 21 июня 2024 г.
now_date.js:9 NaN
now_date.js:16 нормально
javascript
Martin Hope
user583651
Asked: 2024-02-15 21:33:44 +0000 UTC
  • 5

我正在为会计测量工具编写代码。移动压力表时，需要更新安装对象。告诉我如何更改所选测量工具的 location = models.ManyToManyField，这是我使用表单中的 POST 方法收到的。

模型.py

class Si(models.Model):
    name_si = models.CharField(max_length=100, verbose_name="Наименование СИ")
    location = models.ManyToManyField('Location', verbose_name="Место монтажа")

class Location(models.Model):
    shop = models.ForeignKey('Shop', on_delete=models.PROTECT, verbose_name="Цех", null=True)
    field = models.ForeignKey('Field', on_delete=models.PROTECT, verbose_name="Месторождение", null=True)
    object = models.ForeignKey('Object', on_delete=models.PROTECT, verbose_name="Объект", null=True)

表格.py

class UpdateLocationForm(forms.Form):
    location = forms.ModelChoiceField(queryset=Location.objects.all(), label="Место монтажа", empty_label="Выбери объект")

视图.py

def device(request, device_id):
    if request.method =="POST":
        form = UpdateLocationForm(request.POST)
        if form.is_valid():
            print(form.cleaned_data)
            Si.objects.filter(pk=device_id)

*.html

<div>
        <button class="show-dialog-button" type="button">Изменить место монтажа</button>
    </div>

        <dialog class="dialog-box">
          <form action="" method="POST">
               {% csrf_token %}
                {{ form.as_p }}
              <p><button type="submit"> Изменить </button> </p>
          </form>

        </dialog>
python