{"id":5762,"date":"2022-04-03T09:33:41","date_gmt":"2022-04-03T01:33:41","guid":{"rendered":"https:\/\/egonlin.com\/?p=5762"},"modified":"2022-04-03T09:35:31","modified_gmt":"2022-04-03T01:35:31","slug":"06-03-form%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=5762","title":{"rendered":"06-03 form\u7ec4\u4ef6"},"content":{"rendered":"

Form\u4ecb\u7ecd<\/h1>\n

\u6211\u4eec\u4e4b\u524d\u5728HTML\u9875\u9762\u4e2d\u5229\u7528form\u8868\u5355\u5411\u540e\u7aef\u63d0\u4ea4\u6570\u636e\u65f6\uff0c\u90fd\u4f1a\u5199\u4e00\u4e9b\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u6807\u7b7e\u5e76\u4e14\u7528form\u6807\u7b7e\u628a\u5b83\u4eec\u5305\u8d77\u6765\u3002<\/p>\n

\u4e0e\u6b64\u540c\u65f6\u6211\u4eec\u5728\u597d\u591a\u573a\u666f\u4e0b\u90fd\u9700\u8981\u5bf9\u7528\u6237\u7684\u8f93\u5165\u505a\u6821\u9a8c\uff0c\u6bd4\u5982\u6821\u9a8c\u7528\u6237\u662f\u5426\u8f93\u5165\uff0c\u8f93\u5165\u7684\u957f\u5ea6\u548c\u683c\u5f0f\u7b49\u6b63\u4e0d\u6b63\u786e\u3002\u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u6709\u9519\u8bef\u5c31\u9700\u8981\u5728\u9875\u9762\u4e0a\u76f8\u5e94\u7684\u4f4d\u7f6e\u663e\u793a\u5bf9\u5e94\u7684\u9519\u8bef\u4fe1\u606f.\u3002<\/p>\n

Django form\u7ec4\u4ef6\u5c31\u5b9e\u73b0\u4e86\u4e0a\u9762\u6240\u8ff0\u7684\u529f\u80fd\u3002<\/p>\n

\u603b\u7ed3\u4e00\u4e0b\uff0c\u5176\u5b9eform\u7ec4\u4ef6\u7684\u4e3b\u8981\u529f\u80fd\u5982\u4e0b:<\/p>\n

\u751f\u6210\u9875\u9762\u53ef\u7528\u7684HTML\u6807\u7b7e\n\u5bf9\u7528\u6237\u63d0\u4ea4\u7684\u6570\u636e\u8fdb\u884c\u6821\u9a8c\n\u4fdd\u7559\u4e0a\u6b21\u8f93\u5165\u5185\u5bb9<\/code><\/pre>\n
\u666e\u901a\u65b9\u5f0f\u624b\u5199\u6ce8\u518c\u529f\u80fd<\/p>\n
views.py<\/h4>\n
# \u6ce8\u518c\ndef register(request):\n    error_msg = ""\n    if request.method == "POST":\n        username = request.POST.get("name")\n        pwd = request.POST.get("pwd")\n        # \u5bf9\u6ce8\u518c\u4fe1\u606f\u505a\u6821\u9a8c\n        if len(username) < 6:\n            # \u7528\u6237\u957f\u5ea6\u5c0f\u4e8e6\u4f4d\n            error_msg = "\u7528\u6237\u540d\u957f\u5ea6\u4e0d\u80fd\u5c0f\u4e8e6\u4f4d"\n        else:\n            # \u5c06\u7528\u6237\u540d\u548c\u5bc6\u7801\u5b58\u5230\u6570\u636e\u5e93\n            return HttpResponse("\u6ce8\u518c\u6210\u529f")\n    return render(request, "register.html", {"error_msg": error_msg})<\/code><\/pre>\n
login.html<\/h4>\n
<!DOCTYPE html>\n<html lang="en">\n<head>\n    <meta charset="UTF-8">\n    <title>\u6ce8\u518c\u9875\u9762<\/title>\n<\/head>\n<body>\n<form action="\/reg\/" method="post">\n    {% csrf_token %}\n    <p>\n        \u7528\u6237\u540d:\n        <input type="text" name="name">\n    <\/p>\n    <p>\n        \u5bc6\u7801\uff1a\n        <input type="password" name="pwd">\n    <\/p>\n    <p>\n        <input type="submit" value="\u6ce8\u518c">\n        <p style="color: red">{{ error_msg }}<\/p>\n    <\/p>\n<\/form>\n<\/body>\n<\/html><\/code><\/pre>\n
\u4f7f\u7528form\u7ec4\u4ef6\u5b9e\u73b0\u6ce8\u518c\u529f\u80fd<\/h2>\n
views.py<\/h4>\n
\u5148\u5b9a\u4e49\u597d\u4e00\u4e2aRegForm\u7c7b\uff1a<\/p>\n
from django import forms\n\n# \u6309\u7167Django form\u7ec4\u4ef6\u7684\u8981\u6c42\u81ea\u5df1\u5199\u4e00\u4e2a\u7c7b\nclass RegForm(forms.Form):\n    name = forms.CharField(label="\u7528\u6237\u540d")\n    pwd = forms.CharField(label="\u5bc6\u7801")\n<\/code><\/pre>\n
\u518d\u5199\u4e00\u4e2a\u89c6\u56fe\u51fd\u6570\uff1a<\/p>\n
# \u4f7f\u7528form\u7ec4\u4ef6\u5b9e\u73b0\u6ce8\u518c\u65b9\u5f0f\ndef register2(request):\n    form_obj = RegForm()\n    if request.method == "POST":\n        # \u5b9e\u4f8b\u5316form\u5bf9\u8c61\u7684\u65f6\u5019\uff0c\u628apost\u63d0\u4ea4\u8fc7\u6765\u7684\u6570\u636e\u76f4\u63a5\u4f20\u8fdb\u53bb\n        form_obj = RegForm(request.POST)\n        # \u8c03\u7528form_obj\u6821\u9a8c\u6570\u636e\u7684\u65b9\u6cd5\n        if form_obj.is_valid():\n            return HttpResponse("\u6ce8\u518c\u6210\u529f")\n    return render(request, "register2.html", {"form_obj": form_obj})<\/code><\/pre>\n
login2.html<\/h4>\n
<!DOCTYPE html>\n<html lang="en">\n<head>\n    <meta charset="UTF-8">\n    <title>\u6ce8\u518c2<\/title>\n<\/head>\n<body>\n    <form action="\/reg2\/" method="post" novalidate autocomplete="off">\n        {% csrf_token %}\n        <div>\n            <label for="{{ form_obj.name.id_for_label }}">{{ form_obj.name.label }}<\/label>\n            {{ form_obj.name }} {{ form_obj.name.errors.0 }}\n        <\/div>\n        <div>\n            <label for="{{ form_obj.pwd.id_for_label }}">{{ form_obj.pwd.label }}<\/label>\n            {{ form_obj.pwd }} {{ form_obj.pwd.errors.0 }}\n        <\/div>\n        <div>\n            <input type="submit" class="btn btn-success" value="\u6ce8\u518c">\n        <\/div>\n    <\/form>\n<\/body>\n<\/html><\/code><\/pre>\n
\u770b\u7f51\u9875\u6548\u679c\u53d1\u73b0 \u4e5f\u9a8c\u8bc1\u4e86form\u7684\u529f\u80fd\uff1a<\/p>\n
\n
\u2022 \u524d\u7aef\u9875\u9762\u662fform\u7c7b\u7684\u5bf9\u8c61\u751f\u6210\u7684                                      –>\u751f\u6210HTML\u6807\u7b7e\u529f\u80fd
\n\u2022 \u5f53\u7528\u6237\u540d\u548c\u5bc6\u7801\u8f93\u5165\u4e3a\u7a7a\u6216\u8f93\u9519\u4e4b\u540e \u9875\u9762\u90fd\u4f1a\u63d0\u793a        –>\u7528\u6237\u63d0\u4ea4\u6821\u9a8c\u529f\u80fd
\n\u2022 \u5f53\u7528\u6237\u8f93\u9519\u4e4b\u540e \u518d\u6b21\u8f93\u5165 \u4e0a\u6b21\u7684\u5185\u5bb9\u8fd8\u4fdd\u7559\u5728input\u6846   –>\u4fdd\u7559\u4e0a\u6b21\u8f93\u5165\u5185\u5bb9<\/p>\n<\/blockquote>\n
Form\u90a3\u4e9b\u4e8b\u513f<\/h2>\n
\u5e38\u7528\u5b57\u6bb5\u4e0e\u63d2\u4ef6\u5e38\u7528\u5b57\u6bb5\u4e0e\u63d2\u4ef6<\/h3>\n
\u521b\u5efaForm\u7c7b\u65f6\uff0c\u4e3b\u8981\u6d89\u53ca\u5230 \u3010\u5b57\u6bb5\u3011 \u548c \u3010\u63d2\u4ef6\u3011\uff0c\u5b57\u6bb5\u7528\u4e8e\u5bf9\u7528\u6237\u8bf7\u6c42\u6570\u636e\u7684\u9a8c\u8bc1\uff0c\u63d2\u4ef6\u7528\u4e8e\u81ea\u52a8\u751f\u6210HTML;<\/p>\n
initial<\/h3>\n
\u521d\u59cb\u503c\uff0cinput\u6846\u91cc\u9762\u7684\u521d\u59cb\u503c\u3002<\/p>\n
class LoginForm(forms.Form):\n    username = forms.CharField(\n        min_length=8,\n        label="\u7528\u6237\u540d",\n        initial="\u5f20\u4e09"  # \u8bbe\u7f6e\u9ed8\u8ba4\u503c\n    )\n    pwd = forms.CharField(min_length=6, label="\u5bc6\u7801")<\/code><\/pre>\n
error_messages<\/h3>\n
\u91cd\u5199\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n
class LoginForm(forms.Form):\n    username = forms.CharField(\n        min_length=8,\n        label="\u7528\u6237\u540d",\n        initial="\u5f20\u4e09",\n        error_messages={\n            "required": "\u4e0d\u80fd\u4e3a\u7a7a",\n            "invalid": "\u683c\u5f0f\u9519\u8bef",\n            "min_length": "\u7528\u6237\u540d\u6700\u77ed8\u4f4d"\n        }\n    )\n    pwd = forms.CharField(min_length=6, label="\u5bc6\u7801")\n<\/code><\/pre>\n
password<\/h3>\n
class LoginForm(forms.Form):\n    ...\n    pwd = forms.CharField(\n        min_length=6,\n        label="\u5bc6\u7801",\n        widget=forms.widgets.PasswordInput(attrs={'class': 'c1'}, render_value=True)\n    )\n<\/code><\/pre>\n
radioSelect<\/h3>\n
\u5355radio\u503c\u4e3a\u5b57\u7b26\u4e32<\/p>\n
class LoginForm(forms.Form):\n    username = forms.CharField(\n        min_length=8,\n        label="\u7528\u6237\u540d",\n        initial="\u5f20\u4e09",\n        error_messages={\n            "required": "\u4e0d\u80fd\u4e3a\u7a7a",\n            "invalid": "\u683c\u5f0f\u9519\u8bef",\n            "min_length": "\u7528\u6237\u540d\u6700\u77ed8\u4f4d"\n        }\n    )\n    pwd = forms.CharField(min_length=6, label="\u5bc6\u7801")\n    gender = forms.fields.ChoiceField(\n        choices=((1, "\u7537"), (2, "\u5973"), (3, "\u4fdd\u5bc6")),\n        label="\u6027\u522b",\n        initial=3,\n        widget=forms.widgets.RadioSelect()\n    )<\/code><\/pre>\n
\u5355\u9009Select<\/h3>\n
class LoginForm(forms.Form):\n    ...\n    hobby = forms.ChoiceField(\n        choices=((1, "\u7bee\u7403"), (2, "\u8db3\u7403"), (3, "\u53cc\u8272\u7403"), ),\n        label="\u7231\u597d",\n        initial=3,\n        widget=forms.widgets.Select()\n    )\n<\/code><\/pre>\n
\u591a\u9009Select<\/h3>\n
class LoginForm(forms.Form):\n    ...\n    hobby = forms.MultipleChoiceField(\n        choices=((1, "\u7bee\u7403"), (2, "\u8db3\u7403"), (3, "\u53cc\u8272\u7403"), ),\n        label="\u7231\u597d",\n        initial=[1, 3],\n        widget=forms.widgets.SelectMultiple()\n    )<\/code><\/pre>\n
\u5355\u9009checkbox<\/h3>\n
class LoginForm(forms.Form):\n    ...\n    keep = forms.ChoiceField(\n        label="\u662f\u5426\u8bb0\u4f4f\u5bc6\u7801",\n        initial="checked",\n        widget=forms.widgets.CheckboxInput()\n    )<\/code><\/pre>\n
\u591a\u9009checkbox<\/h3>\n
class LoginForm(forms.Form):\n    ...\n    hobby = forms.MultipleChoiceField(\n        choices=((1, "\u7bee\u7403"), (2, "\u8db3\u7403"), (3, "\u53cc\u8272\u7403"),),\n        label="\u7231\u597d",\n        initial=[1, 3],\n        widget=forms.widgets.CheckboxSelectMultiple()\n    )<\/code><\/pre>\n
choice\u5b57\u6bb5\u6ce8\u610f\u4e8b\u9879<\/h3>\n
\u5728\u4f7f\u7528\u9009\u62e9\u6807\u7b7e\u65f6\uff0c\u9700\u8981\u6ce8\u610fchoices\u7684\u9009\u9879\u53ef\u4ee5\u914d\u7f6e\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\uff0c\u4f46\u662f\u7531\u4e8e\u662f\u9759\u6001\u5b57\u6bb5 \u83b7\u53d6\u7684\u503c\u65e0\u6cd5\u5b9e\u65f6\u66f4\u65b0\uff0c\u9700\u8981\u91cd\u5199\u6784\u9020\u65b9\u6cd5\u4ece\u800c\u5b9e\u73b0choice\u5b9e\u65f6\u66f4\u65b0\u3002<\/p>\n
\u65b9\u5f0f\u4e00\uff1a<\/h4>\n
from django.forms import Form\nfrom django.forms import widgets\nfrom django.forms import fields\n\nclass MyForm(Form):\n\n    user = fields.ChoiceField(\n        # choices=((1, '\u4e0a\u6d77'), (2, '\u5317\u4eac'),),\n        initial=2,\n        widget=widgets.Select\n    )\n\n    def __init__(self, *args, **kwargs):\n        super(MyForm,self).__init__(*args, **kwargs)\n        # self.fields['user'].choices = ((1, '\u4e0a\u6d77'), (2, '\u5317\u4eac'),)\n        # \u6216\n        self.fields['user'].choices = models.Classes.objects.all().values_list('id','caption')\n<\/code><\/pre>\n
\u65b9\u5f0f\u4e8c\uff1a<\/h4>\n
from django import forms\nfrom django.forms import fields\nfrom django.forms import models as form_model\n\nclass FInfo(forms.Form):\n    authors = form_model.ModelMultipleChoiceField(queryset=models.NNewType.objects.all())  # \u591a\u9009\n    # authors = form_model.ModelChoiceField(queryset=models.NNewType.objects.all())  # \u5355\u9009<\/code><\/pre>\n
Django Form\u6240\u6709\u5185\u7f6e\u5b57\u6bb5<\/h3>\n
Field\n    required=True,               \u662f\u5426\u5141\u8bb8\u4e3a\u7a7a\n    widget=None,                 HTML\u63d2\u4ef6\n    label=None,                  \u7528\u4e8e\u751f\u6210Label\u6807\u7b7e\u6216\u663e\u793a\u5185\u5bb9\n    initial=None,                \u521d\u59cb\u503c\n    help_text='',                \u5e2e\u52a9\u4fe1\u606f(\u5728\u6807\u7b7e\u65c1\u8fb9\u663e\u793a)\n    error_messages=None,         \u9519\u8bef\u4fe1\u606f {'required': '\u4e0d\u80fd\u4e3a\u7a7a', 'invalid': '\u683c\u5f0f\u9519\u8bef'}\n    validators=[],               \u81ea\u5b9a\u4e49\u9a8c\u8bc1\u89c4\u5219\n    localize=False,              \u662f\u5426\u652f\u6301\u672c\u5730\u5316\n    disabled=False,              \u662f\u5426\u53ef\u4ee5\u7f16\u8f91\n    label_suffix=None            Label\u5185\u5bb9\u540e\u7f00\n\nCharField(Field)\n    max_length=None,             \u6700\u5927\u957f\u5ea6\n    min_length=None,             \u6700\u5c0f\u957f\u5ea6\n    strip=True                   \u662f\u5426\u79fb\u9664\u7528\u6237\u8f93\u5165\u7a7a\u767d\n\nIntegerField(Field)\n    max_value=None,              \u6700\u5927\u503c\n    min_value=None,              \u6700\u5c0f\u503c\n\nFloatField(IntegerField)\n    ...\n\nDecimalField(IntegerField)\n    max_value=None,              \u6700\u5927\u503c\n    min_value=None,              \u6700\u5c0f\u503c\n    max_digits=None,             \u603b\u957f\u5ea6\n    decimal_places=None,         \u5c0f\u6570\u4f4d\u957f\u5ea6\n\nBaseTemporalField(Field)\n    input_formats=None          \u65f6\u95f4\u683c\u5f0f\u5316   \n\nDateField(BaseTemporalField)    \u683c\u5f0f\uff1a2015-09-01\nTimeField(BaseTemporalField)    \u683c\u5f0f\uff1a11:12\nDateTimeField(BaseTemporalField)\u683c\u5f0f\uff1a2015-09-01 11:12\n\nDurationField(Field)            \u65f6\u95f4\u95f4\u9694\uff1a%d %H:%M:%S.%f\n    ...\n\nRegexField(CharField)\n    regex,                      \u81ea\u5b9a\u5236\u6b63\u5219\u8868\u8fbe\u5f0f\n    max_length=None,            \u6700\u5927\u957f\u5ea6\n    min_length=None,            \u6700\u5c0f\u957f\u5ea6\n    error_message=None,         \u5ffd\u7565\uff0c\u9519\u8bef\u4fe1\u606f\u4f7f\u7528 error_messages={'invalid': '...'}\n\nEmailField(CharField)      \n    ...\n\nFileField(Field)\n    allow_empty_file=False     \u662f\u5426\u5141\u8bb8\u7a7a\u6587\u4ef6\n\nImageField(FileField)      \n    ...\n    \u6ce8\uff1a\u9700\u8981PIL\u6a21\u5757\uff0cpip3 install Pillow\n    \u4ee5\u4e0a\u4e24\u4e2a\u5b57\u5178\u4f7f\u7528\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4e24\u70b9\uff1a\n        - form\u8868\u5355\u4e2d enctype="multipart\/form-data"\n        - view\u51fd\u6570\u4e2d obj = MyForm(request.POST, request.FILES)\n\nURLField(Field)\n    ...\n\nBooleanField(Field)  \n    ...\n\nNullBooleanField(BooleanField)\n    ...\n\nChoiceField(Field)\n    ...\n    choices=(),                \u9009\u9879\uff0c\u5982\uff1achoices = ((0,'\u4e0a\u6d77'),(1,'\u5317\u4eac'),)\n    required=True,             \u662f\u5426\u5fc5\u586b\n    widget=None,               \u63d2\u4ef6\uff0c\u9ed8\u8ba4select\u63d2\u4ef6\n    label=None,                Label\u5185\u5bb9\n    initial=None,              \u521d\u59cb\u503c\n    help_text='',              \u5e2e\u52a9\u63d0\u793a\n\nModelChoiceField(ChoiceField)\n    ...                        django.forms.models.ModelChoiceField\n    queryset,                  # \u67e5\u8be2\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\n    empty_label="---------",   # \u9ed8\u8ba4\u7a7a\u663e\u793a\u5185\u5bb9\n    to_field_name=None,        # HTML\u4e2dvalue\u7684\u503c\u5bf9\u5e94\u7684\u5b57\u6bb5\n    limit_choices_to=None      # ModelForm\u4e2d\u5bf9queryset\u4e8c\u6b21\u7b5b\u9009\n\nModelMultipleChoiceField(ModelChoiceField)\n    ...                        django.forms.models.ModelMultipleChoiceField\n\nTypedChoiceField(ChoiceField)\n    coerce = lambda val: val   \u5bf9\u9009\u4e2d\u7684\u503c\u8fdb\u884c\u4e00\u6b21\u8f6c\u6362\n    empty_value= ''            \u7a7a\u503c\u7684\u9ed8\u8ba4\u503c\n\nMultipleChoiceField(ChoiceField)\n    ...\n\nTypedMultipleChoiceField(MultipleChoiceField)\n    coerce = lambda val: val   \u5bf9\u9009\u4e2d\u7684\u6bcf\u4e00\u4e2a\u503c\u8fdb\u884c\u4e00\u6b21\u8f6c\u6362\n    empty_value= ''            \u7a7a\u503c\u7684\u9ed8\u8ba4\u503c\n\nComboField(Field)\n    fields=()                  \u4f7f\u7528\u591a\u4e2a\u9a8c\u8bc1\uff0c\u5982\u4e0b\uff1a\u5373\u9a8c\u8bc1\u6700\u5927\u957f\u5ea620\uff0c\u53c8\u9a8c\u8bc1\u90ae\u7bb1\u683c\u5f0f\n                               fields.ComboField(fields=[fields.CharField(max_length=20), fields.EmailField(),])\n\nMultiValueField(Field)\n    PS: \u62bd\u8c61\u7c7b\uff0c\u5b50\u7c7b\u4e2d\u53ef\u4ee5\u5b9e\u73b0\u805a\u5408\u591a\u4e2a\u5b57\u5178\u53bb\u5339\u914d\u4e00\u4e2a\u503c\uff0c\u8981\u914d\u5408MultiWidget\u4f7f\u7528\n\nSplitDateTimeField(MultiValueField)\n    input_date_formats=None,   \u683c\u5f0f\u5217\u8868\uff1a['%Y--%m--%d', '%m%d\/%Y', '%m\/%d\/%y']\n    input_time_formats=None    \u683c\u5f0f\u5217\u8868\uff1a['%H:%M:%S', '%H:%M:%S.%f', '%H:%M']\n\nFilePathField(ChoiceField)     \u6587\u4ef6\u9009\u9879\uff0c\u76ee\u5f55\u4e0b\u6587\u4ef6\u663e\u793a\u5728\u9875\u9762\u4e2d\n    path,                      \u6587\u4ef6\u5939\u8def\u5f84\n    match=None,                \u6b63\u5219\u5339\u914d\n    recursive=False,           \u9012\u5f52\u4e0b\u9762\u7684\u6587\u4ef6\u5939\n    allow_files=True,          \u5141\u8bb8\u6587\u4ef6\n    allow_folders=False,       \u5141\u8bb8\u6587\u4ef6\u5939\n    required=True,\n    widget=None,\n    label=None,\n    initial=None,\n    help_text=''\n\nGenericIPAddressField\n    protocol='both',           both,ipv4,ipv6\u652f\u6301\u7684IP\u683c\u5f0f\n    unpack_ipv4=False          \u89e3\u6790ipv4\u5730\u5740\uff0c\u5982\u679c\u662f::ffff:192.0.2.1\u65f6\u5019\uff0c\u53ef\u89e3\u6790\u4e3a192.0.2.1\uff0c PS\uff1aprotocol\u5fc5\u987b\u4e3aboth\u624d\u80fd\u542f\u7528\n\nSlugField(CharField)           \u6570\u5b57\uff0c\u5b57\u6bcd\uff0c\u4e0b\u5212\u7ebf\uff0c\u51cf\u53f7\uff08\u8fde\u5b57\u7b26\uff09\n    ...\n\nUUIDField(CharField)           uuid\u7c7b\u578b<\/code><\/pre>\n
\u5b57\u6bb5\u6821\u9a8c<\/h2>\n
RegexValidator\u9a8c\u8bc1\u5668<\/h3>\n
from django.forms import Form\nfrom django.forms import widgets\nfrom django.forms import fields\nfrom django.core.validators import RegexValidator\n\nclass MyForm(Form):\n    user = fields.CharField(\n        validators=[RegexValidator(r'^[0-9]+$', '\u8bf7\u8f93\u5165\u6570\u5b57'), RegexValidator(r'^159[0-9]+$', '\u6570\u5b57\u5fc5\u987b\u4ee5159\u5f00\u5934')],\n    )\n<\/code><\/pre>\n
\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u51fd\u6570<\/h3>\n
import re\nfrom django.forms import Form\nfrom django.forms import widgets\nfrom django.forms import fields\nfrom django.core.exceptions import ValidationError\n\n# \u81ea\u5b9a\u4e49\u9a8c\u8bc1\u89c4\u5219\ndef mobile_validate(value):\n    mobile_re = re.compile(r'^(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$')\n    if not mobile_re.match(value):\n        raise ValidationError('\u624b\u673a\u53f7\u7801\u683c\u5f0f\u9519\u8bef')\n\nclass PublishForm(Form):\n\n    title = fields.CharField(max_length=20,\n                            min_length=5,\n                            error_messages={'required': '\u6807\u9898\u4e0d\u80fd\u4e3a\u7a7a',\n                                            'min_length': '\u6807\u9898\u6700\u5c11\u4e3a5\u4e2a\u5b57\u7b26',\n                                            'max_length': '\u6807\u9898\u6700\u591a\u4e3a20\u4e2a\u5b57\u7b26'},\n                            widget=widgets.TextInput(attrs={'class': "form-control",\n                                                          'placeholder': '\u6807\u98985-20\u4e2a\u5b57\u7b26'}))\n\n    # \u4f7f\u7528\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u89c4\u5219\n    phone = fields.CharField(validators=[mobile_validate, ],\n                            error_messages={'required': '\u624b\u673a\u4e0d\u80fd\u4e3a\u7a7a'},\n                            widget=widgets.TextInput(attrs={'class': "form-control",\n                                                          'placeholder': u'\u624b\u673a\u53f7\u7801'}))\n\n    email = fields.EmailField(required=False,\n                            error_messages={'required': u'\u90ae\u7bb1\u4e0d\u80fd\u4e3a\u7a7a','invalid': u'\u90ae\u7bb1\u683c\u5f0f\u9519\u8bef'},\n                            widget=widgets.TextInput(attrs={'class': "form-control", 'placeholder': u'\u90ae\u7bb1'}))<\/code><\/pre>\n
Hook\u65b9\u6cd5<\/h3>\n
\u9664\u4e86\u4e0a\u9762\u4e24\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5728Form\u7c7b\u4e2d\u5b9a\u4e49\u94a9\u5b50\u51fd\u6570\uff0c\u6765\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u9a8c\u8bc1\u529f\u80fd\u3002<\/p>\n
\u5c40\u90e8\u94a9\u5b50<\/h3>\n
\u6211\u4eec\u5728Fom\u7c7b\u4e2d\u5b9a\u4e49 clean_\u5b57\u6bb5\u540d() \u65b9\u6cd5\uff0c\u5c31\u80fd\u591f\u5b9e\u73b0\u5bf9\u7279\u5b9a\u5b57\u6bb5\u8fdb\u884c\u6821\u9a8c\u3002<\/p>\n
\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
class LoginForm(forms.Form):\n    username = forms.CharField(\n        min_length=8,\n        label="\u7528\u6237\u540d",\n        initial="\u5f20\u4e09",\n        error_messages={\n            "required": "\u4e0d\u80fd\u4e3a\u7a7a",\n            "invalid": "\u683c\u5f0f\u9519\u8bef",\n            "min_length": "\u7528\u6237\u540d\u6700\u77ed8\u4f4d"\n        },\n        widget=forms.widgets.TextInput(attrs={"class": "form-control"})\n    )\n    ...\n    # \u5b9a\u4e49\u5c40\u90e8\u94a9\u5b50\uff0c\u7528\u6765\u6821\u9a8cusername\u5b57\u6bb5\n    def clean_username(self):\n        value = self.cleaned_data.get("username")\n        if "666" in value:\n            raise ValidationError("\u5149\u558a666\u662f\u4e0d\u884c\u7684")\n        else:\n            return value\n<\/code><\/pre>\n
\u5168\u5c40\u94a9\u5b50<\/h3>\n
\u6211\u4eec\u5728Fom\u7c7b\u4e2d\u5b9a\u4e49 clean() \u65b9\u6cd5\uff0c\u5c31\u80fd\u591f\u5b9e\u73b0\u5bf9\u5b57\u6bb5\u8fdb\u884c\u5168\u5c40\u6821\u9a8c\u3002<\/p>\n
class LoginForm(forms.Form):\n    ...\n    password = forms.CharField(\n        min_length=6,\n        label="\u5bc6\u7801",\n        widget=forms.widgets.PasswordInput(attrs={'class': 'form-control'}, render_value=True)\n    )\n    re_password = forms.CharField(\n        min_length=6,\n        label="\u786e\u8ba4\u5bc6\u7801",\n        widget=forms.widgets.PasswordInput(attrs={'class': 'form-control'}, render_value=True)\n    )\n    ...\n    # \u5b9a\u4e49\u5168\u5c40\u7684\u94a9\u5b50\uff0c\u7528\u6765\u6821\u9a8c\u5bc6\u7801\u548c\u786e\u8ba4\u5bc6\u7801\u5b57\u6bb5\u662f\u5426\u76f8\u540c\n    def clean(self):\n        password_value = self.cleaned_data.get('password')\n        re_password_value = self.cleaned_data.get('re_password')\n        if password_value == re_password_value:\n            return self.cleaned_data\n        else:\n            self.add_error('re_password', '\u4e24\u6b21\u5bc6\u7801\u4e0d\u4e00\u81f4')\n            raise ValidationError('\u4e24\u6b21\u5bc6\u7801\u4e0d\u4e00\u81f4')<\/code><\/pre>\n
\u8865\u5145\u8fdb\u9636<\/h2>\n
\u5e94\u7528Bootstrap\u6837\u5f0f<\/h3>\n
Django form\u5e94\u7528Bootstrap\u6837\u5f0f\u7b80\u5355\u793a\u4f8b<\/h4>\n
<!DOCTYPE html>\n<html lang="en">\n<head>\n  <meta charset="UTF-8">\n  <meta http-equiv="x-ua-compatible" content="IE=edge">\n  <meta name="viewport" content="width=device-width, initial-scale=1">\n  <link rel="stylesheet" href="\/static\/bootstrap\/css\/bootstrap.min.css">\n  <title>login<\/title>\n<\/head>\n<body>\n<div class="container">\n  <div class="row">\n    <form action="\/login2\/" method="post" novalidate class="form-horizontal">\n      {% csrf_token %}\n      <div class="form-group">\n        <label for="{{ form_obj.username.id_for_label }}"\n               class="col-md-2 control-label">{{ form_obj.username.label }}<\/label>\n        <div class="col-md-10">\n          {{ form_obj.username }}\n          <span class="help-block">{{ form_obj.username.errors.0 }}<\/span>\n        <\/div>\n      <\/div>\n      <div class="form-group">\n        <label for="{{ form_obj.pwd.id_for_label }}" class="col-md-2 control-label">{{ form_obj.pwd.label }}<\/label>\n        <div class="col-md-10">\n          {{ form_obj.pwd }}\n          <span class="help-block">{{ form_obj.pwd.errors.0 }}<\/span>\n        <\/div>\n      <\/div>\n      <div class="form-group">\n      <label class="col-md-2 control-label">{{ form_obj.gender.label }}<\/label>\n        <div class="col-md-10">\n          <div class="radio">\n            {% for radio in form_obj.gender %}\n              <label for="{{ radio.id_for_label }}">\n                {{ radio.tag }}{{ radio.choice_label }}\n              <\/label>\n            {% endfor %}\n          <\/div>\n        <\/div>\n      <\/div>\n      <div class="form-group">\n        <div class="col-md-offset-2 col-md-10">\n          <button type="submit" class="btn btn-default">\u6ce8\u518c<\/button>\n        <\/div>\n      <\/div>\n    <\/form>\n  <\/div>\n<\/div>\n\n<script src="\/static\/jquery-3.2.1.min.js"><\/script>\n<script src="\/static\/bootstrap\/js\/bootstrap.min.js"><\/script>\n<\/body>\n<\/html><\/code><\/pre>\n
\u6279\u91cf\u6dfb\u52a0\u6837\u5f0f<\/h3>\n
\u53ef\u901a\u8fc7\u91cd\u5199form\u7c7b\u7684init\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n
class LoginForm(forms.Form):\n    username = forms.CharField(\n        min_length=8,\n        label="\u7528\u6237\u540d",\n        initial="\u5f20\u4e09",\n        error_messages={\n            "required": "\u4e0d\u80fd\u4e3a\u7a7a",\n            "invalid": "\u683c\u5f0f\u9519\u8bef",\n            "min_length": "\u7528\u6237\u540d\u6700\u77ed8\u4f4d"\n        }\n    ...\n\n    def __init__(self, *args, **kwargs):\n        super(LoginForm, self).__init__(*args, **kwargs)\n        for field in iter(self.fields):\n            self.fields[field].widget.attrs.update({\n                'class': 'form-control'\n            })<\/code><\/pre>\n
ModelForm<\/h2>\n
\u901a\u5e38\u5728Django\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u7f16\u5199\u7684\u5927\u90e8\u5206\u90fd\u662f\u4e0eDjango \u7684\u6a21\u578b\u7d27\u5bc6\u6620\u5c04\u7684\u8868\u5355\u3002 \u4e3e\u4e2a\u4f8b\u5b50\uff0c\u4f60\u4e5f\u8bb8\u4f1a\u6709\u4e2aBook \u6a21\u578b\uff0c\u5e76\u4e14\u4f60\u8fd8\u60f3\u521b\u5efa\u4e00\u4e2aform\u8868\u5355\u7528\u6765\u6dfb\u52a0\u548c\u7f16\u8f91\u4e66\u7c4d\u4fe1\u606f\u5230\u8fd9\u4e2a\u6a21\u578b\u4e2d\u3002 \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5728form\u8868\u5355\u4e2d\u5b9a\u4e49\u5b57\u6bb5\u5c06\u662f\u5197\u4f59\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u5df2\u7ecf\u5728\u6a21\u578b\u4e2d\u5b9a\u4e49\u4e86\u90a3\u4e9b\u5b57\u6bb5\u3002<\/p>\n
\u57fa\u4e8e\u8fd9\u4e2a\u539f\u56e0\uff0cDjango \u63d0\u4f9b\u4e00\u4e2a\u8f85\u52a9\u7c7b\u6765\u8ba9\u6211\u4eec\u53ef\u4ee5\u4eceDjango \u7684\u6a21\u578b\u521b\u5efaForm\uff0c\u8fd9\u5c31\u662fModelForm\u3002<\/p>\n
modelForm\u5b9a\u4e49<\/h3>\n
form\u4e0emodel\u7684\u7ec8\u6781\u7ed3\u5408\u3002<\/h5>\n
class BookForm(forms.ModelForm):\n\n    class Meta:\n        model = models.Book\n        fields = "__all__"\n        labels = {\n            "title": "\u4e66\u540d",\n            "price": "\u4ef7\u683c"\n        }\n        widgets = {\n            "password": forms.widgets.PasswordInput(attrs={"class": "c1"}),\n        }<\/code><\/pre>\n
class Meta\u4e0b\u5e38\u7528\u53c2\u6570\uff1a<\/h3>\n
model = models.Book  # \u5bf9\u5e94\u7684Model\u4e2d\u7684\u7c7b\nfields = "__all__"  # \u5b57\u6bb5\uff0c\u5982\u679c\u662f__all__,\u5c31\u662f\u8868\u793a\u5217\u51fa\u6240\u6709\u7684\u5b57\u6bb5\nexclude = None  # \u6392\u9664\u7684\u5b57\u6bb5\nlabels = None  # \u63d0\u793a\u4fe1\u606f\nhelp_texts = None  # \u5e2e\u52a9\u63d0\u793a\u4fe1\u606f\nwidgets = None  # \u81ea\u5b9a\u4e49\u63d2\u4ef6\nerror_messages = None  # \u81ea\u5b9a\u4e49\u9519\u8bef\u4fe1\u606f<\/code><\/pre>\n
ModelForm\u7684\u9a8c\u8bc1<\/h3>\n
\u4e0e\u666e\u901a\u7684Form\u8868\u5355\u9a8c\u8bc1\u7c7b\u578b\u7c7b\u4f3c\uff0cModelForm\u8868\u5355\u7684\u9a8c\u8bc1\u5728\u8c03\u7528is_valid() \u6216\u8bbf\u95eeerrors \u5c5e\u6027\u65f6\u9690\u5f0f\u8c03\u7528\u3002<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u50cf\u4f7f\u7528Form\u7c7b\u4e00\u6837\u81ea\u5b9a\u4e49\u5c40\u90e8\u94a9\u5b50\u65b9\u6cd5\u548c\u5168\u5c40\u94a9\u5b50\u65b9\u6cd5\u6765\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u6821\u9a8c\u89c4\u5219\u3002<\/p>\n
\u5982\u679c\u6211\u4eec\u4e0d\u91cd\u5199\u5177\u4f53\u5b57\u6bb5\u5e76\u8bbe\u7f6evalidators\u5c5e\u6027\u7684\u5316\uff0cModelForm\u662f\u6309\u7167\u6a21\u578b\u4e2d\u5b57\u6bb5\u7684validators\u6765\u6821\u9a8c\u7684\u3002<\/p>\n
save()\u65b9\u6cd5<\/h3>\n
\u6bcf\u4e2aModelForm\u8fd8\u5177\u6709\u4e00\u4e2asave()\u65b9\u6cd5\u3002 \u8fd9\u4e2a\u65b9\u6cd5\u6839\u636e\u8868\u5355\u7ed1\u5b9a\u7684\u6570\u636e\u521b\u5efa\u5e76\u4fdd\u5b58\u6570\u636e\u5e93\u5bf9\u8c61\u3002 ModelForm\u7684\u5b50\u7c7b\u53ef\u4ee5\u63a5\u53d7\u73b0\u6709\u7684\u6a21\u578b\u5b9e\u4f8b\u4f5c\u4e3a\u5173\u952e\u5b57\u53c2\u6570instance\uff1b\u5982\u679c\u63d0\u4f9b\u6b64\u529f\u80fd\uff0c\u5219save()\u5c06\u66f4\u65b0\u8be5\u5b9e\u4f8b\u3002 \u5982\u679c\u6ca1\u6709\u63d0\u4f9b\uff0csave() \u5c06\u521b\u5efa\u6a21\u578b\u7684\u4e00\u4e2a\u65b0\u5b9e\u4f8b\uff1a
\n\u590d\u5236\u4ee3\u7801
\n\u590d\u5236\u4ee3\u7801<\/p>\n
>>> from myapp.models import Book\n>>> from myapp.forms import BookForm\n\n# \u6839\u636ePOST\u6570\u636e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684form\u5bf9\u8c61\n>>> form_obj = BookForm(request.POST)\n\n# \u521b\u5efa\u4e66\u7c4d\u5bf9\u8c61\n>>> new_ book = form_obj.save()\n\n# \u57fa\u4e8e\u4e00\u4e2a\u4e66\u7c4d\u5bf9\u8c61\u521b\u5efaform\u5bf9\u8c61\n>>> edit_obj = Book.objects.get(id=1)\n# \u4f7f\u7528POST\u63d0\u4ea4\u7684\u6570\u636e\u66f4\u65b0\u4e66\u7c4d\u5bf9\u8c61\n>>> form_obj = BookForm(request.POST, instance=edit_obj)\n>>> form_obj.save()<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
Form\u4ecb\u7ecd \u6211\u4eec\u4e4b\u524d\u5728HTML\u9875\u9762\u4e2d\u5229\u7528form\u8868\u5355\u5411\u540e\u7aef\u63d0\u4ea4\u6570\u636e\u65f6\uff0c\u90fd\u4f1a\u5199\u4e00\u4e9b\u83b7\u53d6\u7528\u6237\u8f93\u5165\u7684\u6807\u7b7e\u5e76\u4e14\u7528fo […]<\/p>\n","protected":false},"author":3,"featured_media":5739,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[385,388],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5762"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5762"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/5762\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/5739"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}