python - 分配 css 类以形成从 flask 传递到 jinja 的元素

Question

我对 jinja/flask 很陌生，我正在我的 flask 应用程序中创建动态形式:

class CreateForm(FlaskForm):
    searchCity = StringField('View forcast of city:', validators=[InputRequired("Please enter the city you want to check weather updates")])
    count = IntegerField("Days")
    submit = SubmitField("Submit")


form = CreateForm(request.form)
form.count.default = count
form.count.label = "Days" if count > 1 else "Day" 

form.count.data = count

在神社模板中:

<form>
    <dl>
        <dd>{{ form.searchCity.label }} {{ form.searchCity(size=20) }} 
            for next {{ form.count(size=2) }} {{ form.count.label }}
            <input type="submit" class="btn-primary" value="Submit" id="calculate" onclick="getWeatherForcaset(
            document.getElementsByName('searchCity')[whole_number].value,
            document.getElementsByName('count')[whole_number].value
            );" >
        </dd>
        <dd>
            <input type="checkbox" name="exactMatch" checked="checked">Exact Match 
            &nbsp;
            <input type="checkbox" name="remember">Remember<br/ >
        </dd>

    </dl>
 </form>

我想将类 form-group 分配给 searchCity 输入框! 任何帮助将不胜感激谢谢

Answer 1

你应该能够像这样将变量传递给构造函数

{{ form.searchCity(size=20, class_='searchCity') }}  

文档位于:

http://wtforms.readthedocs.io/en/latest/crash_course.html#rendering-fields

文档片段

However, the real power comes from rendering the field with its call() method. By calling the field, you can provide keyword arguments, which will be injected as html attributes in the output:

form.content(style="width: 200px;", class_="bar")

<input class="bar" id="content" name="content" style="width: 200px;" type="text" value="foobar" />'