django-admin自定义登录

这个效果，单位代码是User model 的一个外键Company

通过修改form，然后在前端显示

修改form

class AuthenticationForm(forms.Form):

    """

    Base class for authenticating users. Extend this to get a form that accepts

    username/password logins.

    """

    username = forms.CharField(max_length=254)

    password = forms.CharField(label=_("Password"), widget=forms.PasswordInput)

#自定义一个company_form

    company = forms.CharField(max_length=254)

    error_messages = {

        'invalid_login': _("Please enter a correct %(username)s and password. "

                           "Note that both fields may be case-sensitive."),

        'inactive': _("This account is inactive."),

    }

    def __init__(self, request=None, *args, **kwargs):

        """

        The 'request' parameter is set for custom auth use by subclasses.

        The form data comes in via the standard 'data' kwarg.

        """

        self.request = request

        self.user_cache = None

        super(AuthenticationForm, self).__init__(*args, **kwargs)

        # Set the label for the "username" field.

        UserModel = get_user_model()

        self.username_field = UserModel._meta.get_field(UserModel.USERNAME_FIELD)

        if self.fields['username'].label is None:

            self.fields['username'].label = capfirst(self.username_field.verbose_name)

    def clean(self):

        username = self.cleaned_data.get('username')

        password = self.cleaned_data.get('password')

#有修改

        company = self.cleaned_data.get('company')

        if username and password and company:

            self.user_cache = authenticate(username=username,

                                           password=password,

                                           company=company)

            if self.user_cache is None:

                raise forms.ValidationError(

                    self.error_messages['invalid_login'],

                    code='invalid_login',

                    params={'username': self.username_field.verbose_name},

                )

            else:

                self.confirm_login_allowed(self.user_cache)

        return self.cleaned_data

在admin form 当中找到这串代码，主要是admin login 登录界面会引用，修改部分代码然后在views当中修改login

from forms import AuthenticationForm

@deprecate_current_app

@sensitive_post_parameters()

@csrf_protect

@never_cache

def login(request, template_name='admin/login.html',

          redirect_field_name=REDIRECT_FIELD_NAME,

          authentication_form=AuthenticationForm,

          extra_context=None):

    """

    Displays the login form and handles the login action.

    """

    redirect_to = request.POST.get(redirect_field_name,

                                   request.GET.get(redirect_field_name, ''))

    if request.method == "POST":

        form = authentication_form(request, data=request.POST)

        if form.is_valid():

            # Ensure the user-originating redirection url is safe.

            if not is_safe_url(url=redirect_to, host=request.get_host()):

                redirect_to = resolve_url(settings.LOGIN_REDIRECT_URL)

            # Okay, security check complete. Log the user in.

            auth_login(request, form.get_user())

            return HttpResponseRedirect(redirect_to)

    else:

        form = authentication_form(request)

    current_site = get_current_site(request)

    context = {

        'form': form,

        redirect_field_name: redirect_to,

        'site': current_site,

        'site_name': current_site.name,

    }

    if extra_context is not None:

        context.update(extra_context)

    return TemplateResponse(request, template_name, context)

引用自定义的form然后跳转到自定义的login页面

{% extends "admin/base_site.html" %}

{% load staticfiles %}

{% load i18n admin_static %}

{% block extrastyle %}{{ block.super }}{{ form.media }}<link rel="stylesheet" type="text/css" href='{% static "admin/css/login.css" %}'>

{% endblock %}

{% block bodyclass %}{{ block.super }} login{% endblock %}

{% block usertools %}{% endblock %}

{% block nav-global %}{% endblock %}

{% block content_title %}{% endblock %}

{% block breadcrumbs %}{% endblock %}

{% block content %}

{% if form.errors and not form.non_field_errors %}

<p class="errornote">

{% if form.errors.items|length == 1 %}{% trans "Please correct the error below." %}{% else %}{% trans "Please correct the errors below." %}{% endif %}

</p>

{% endif %}

{% if form.non_field_errors %}

{% for error in form.non_field_errors %}

<p class="errornote">

    {{ error }}

</p>

{% endfor %}

{% endif %}

<div id="content-main">

{% if user.is_authenticated %}

<p class="errornote">

{% blocktrans with username=request.user.get_username trimmed %}

    You are authenticated as {{ username }}, but are not authorized to

    access this page. Would you like to login to a different account?

{% endblocktrans %}

</p>

{% endif %}

<form action="{{ app_path }}" method="post" id="login-form">{% csrf_token %}

<div class="form-row">

    {{ form.company.errors }}

    <p>公司代码</p>

    {{ form.company }}

  </div>

  <div class="form-row">

    {{ form.username.errors }}

    <p>用户名</p>

    {{ form.username }}

  </div>

  <div class="form-row">

    {{ form.password.errors }}

    {{ form.password.label_tag }} {{ form.password }}

    <input type="hidden" name="next" value="{{ next }}" />

  </div>

  {% url 'admin_password_reset' as password_reset_url %}

  {% if password_reset_url %}

  <div class="password-reset-link">

    <a href="{{ password_reset_url }}">{% trans 'Forgotten your password or username?' %}</a>

  </div>

  {% endif %}

  <div class="submit-row">

    <label>&nbsp;</label><input type="submit" value="{% trans 'Log in' %}" />

  </div>

</form>

/*调节样式*/

<script type="text/javascript">

document.getElementById('id_username').focus();

var company = document.getElementById('id_company');

company.style.height = '23px';

company.style.width = '339px';

</script>

</div>

{% endblock %}

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django-admin自定义登录

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