自定义Django ClearableFileInput窗口小部件的样式 [英] Customize the styles of Django ClearableFileInput widget

问题描述

我使用 ImageField 在我的django模型有图像上传设施。 ImageField 使用 ClearableFileInput 小部件，但它不提供格式良好的html标记，我可以使用CSS自定义。显示的是由 ClearableFileInput 呈现的html标记。

I have use ImageField in my django model to have the image upload facility. ImageField uses the ClearableFileInput widget but it does not provide well formatted html markup that i can customize using CSS. Shown bellow is the html markup that rendered by ClearableFileInput.

<div class="form-group" id="div_id">
    <label class="control-label " for="id_image">
        Guide
    </label>

    <div class="controls ">
        Currently:
        <a href="/media/ide.png">de.png</a>
        <input type="checkbox" name="image_" id="image_">
        <label for="image_te">
            Clear
        </label><br>
        Change:
        <input type="file" name="image_te" id="id_i" class="clearablefileinput">
    </div>
</div>

我想要做的就是添加自定义CSS类到这些元素，想。如果有人可以向我建议一个解决方案，这将是真的很大。

Simply what i want to do is to add custom css classes to these elements and change the order as i want. It would be really great if someone can suggest me a solution to this.

推荐答案

只需创建自己的Input类，并将render callable改为任何你想要的。例如，这里有一个我添加了一个小化身。它很快又脏，因为它不干，但它的目的：

Just make your own Input class and alter the render callable to whatever you want. As an example, here's one I made to add in a little avatar. It's quick and dirty, in that it's not DRY, but it serves a purpose:

class AvatarInput(ClearableFileInput):
'''renders the input file as an avatar image, and removes the 'currently' html'''

template_with_initial = u'%(initial)s %(clear_template)s<br />%(input_text)s: %(input)s'

def render(self, name, value, attrs=None):
    substitutions = {
        'input_text': self.input_text,
        'clear_template': '',
        'clear_checkbox_label': self.clear_checkbox_label,
    }
    template = u'%(input)s'
    substitutions['input'] = super(AvatarInput, self).render(name, value, attrs)

    if value and hasattr(value, "url"):
        template = self.template_with_initial
        substitutions['initial'] = (u'<img src="%s" width="60" height="60"></img>'
                                    % (escape(value.url)))
        if not self.is_required:
            checkbox_name = self.clear_checkbox_name(name)
            checkbox_id = self.clear_checkbox_id(checkbox_name)
            substitutions['clear_checkbox_name'] = conditional_escape(checkbox_name)
            substitutions['clear_checkbox_id'] = conditional_escape(checkbox_id)
            substitutions['clear'] = CheckboxInput().render(checkbox_name, False, attrs={'id': checkbox_id})
            substitutions['clear_template'] = self.template_with_clear % substitutions

    return mark_safe(template % substitutions)

然后把它放到你的窗体类Meta中：

Then just drop it into your form class Meta:

    class Meta:
        model = <your model>
        widgets = {'your-field-name': AvatarInput()

这篇关于自定义Django ClearableFileInput窗口小部件的样式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！