author | Pawel Solyga <Pawel.Solyga@gmail.com> |
Mon, 18 May 2009 19:37:38 +0200 | |
changeset 2327 | 6c7d0fba105c |
parent 109 | 620f9b141567 |
permissions | -rwxr-xr-x |
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""" |
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36. Generating HTML forms from models |
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|
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Django provides shortcuts for creating Form objects from a model class and a |
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model instance. |
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|
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The function django.newforms.form_for_model() takes a model class and returns |
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a Form that is tied to the model. This Form works just like any other Form, |
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with one additional method: save(). The save() method creates an instance |
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of the model and returns that newly created instance. It saves the instance to |
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the database if save(commit=True), which is default. If you pass |
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commit=False, then you'll get the object without committing the changes to the |
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database. |
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|
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The function django.newforms.form_for_instance() takes a model instance and |
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returns a Form that is tied to the instance. This form works just like any |
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other Form, with one additional method: save(). The save() |
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method updates the model instance. It also takes a commit=True parameter. |
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|
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The function django.newforms.save_instance() takes a bound form instance and a |
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model instance and saves the form's clean_data into the instance. It also takes |
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a commit=True parameter. |
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""" |
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from django.db import models |
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class Category(models.Model): |
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name = models.CharField(maxlength=20) |
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url = models.CharField('The URL', maxlength=40) |
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def __str__(self): |
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return self.name |
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class Writer(models.Model): |
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name = models.CharField(maxlength=50, help_text='Use both first and last names.') |
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def __str__(self): |
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return self.name |
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class Article(models.Model): |
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headline = models.CharField(maxlength=50) |
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pub_date = models.DateField() |
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created = models.DateField(editable=False) |
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writer = models.ForeignKey(Writer) |
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article = models.TextField() |
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categories = models.ManyToManyField(Category, blank=True) |
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|
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def save(self): |
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import datetime |
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if not self.id: |
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self.created = datetime.date.today() |
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return super(Article, self).save() |
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def __str__(self): |
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return self.headline |
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class PhoneNumber(models.Model): |
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phone = models.PhoneNumberField() |
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description = models.CharField(maxlength=20) |
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def __str__(self): |
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return self.phone |
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__test__ = {'API_TESTS': """ |
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>>> from django.newforms import form_for_model, form_for_instance, save_instance, BaseForm, Form, CharField |
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>>> import datetime |
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>>> Category.objects.all() |
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[] |
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>>> CategoryForm = form_for_model(Category) |
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>>> f = CategoryForm() |
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>>> print f |
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<tr><th><label for="id_name">Name:</label></th><td><input id="id_name" type="text" name="name" maxlength="20" /></td></tr> |
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<tr><th><label for="id_url">The URL:</label></th><td><input id="id_url" type="text" name="url" maxlength="40" /></td></tr> |
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>>> print f.as_ul() |
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<li><label for="id_name">Name:</label> <input id="id_name" type="text" name="name" maxlength="20" /></li> |
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<li><label for="id_url">The URL:</label> <input id="id_url" type="text" name="url" maxlength="40" /></li> |
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>>> print f['name'] |
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<input id="id_name" type="text" name="name" maxlength="20" /> |
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|
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>>> f = CategoryForm(auto_id=False) |
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>>> print f.as_ul() |
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<li>Name: <input type="text" name="name" maxlength="20" /></li> |
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<li>The URL: <input type="text" name="url" maxlength="40" /></li> |
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|
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>>> f = CategoryForm({'name': 'Entertainment', 'url': 'entertainment'}) |
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>>> f.is_valid() |
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True |
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>>> f.clean_data |
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{'url': u'entertainment', 'name': u'Entertainment'} |
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>>> obj = f.save() |
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>>> obj |
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<Category: Entertainment> |
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>>> Category.objects.all() |
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[<Category: Entertainment>] |
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|
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>>> f = CategoryForm({'name': "It's a test", 'url': 'test'}) |
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>>> f.is_valid() |
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True |
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>>> f.clean_data |
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{'url': u'test', 'name': u"It's a test"} |
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>>> obj = f.save() |
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>>> obj |
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<Category: It's a test> |
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>>> Category.objects.all() |
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[<Category: Entertainment>, <Category: It's a test>] |
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|
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If you call save() with commit=False, then it will return an object that |
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hasn't yet been saved to the database. In this case, it's up to you to call |
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111 |
save() on the resulting model instance. |
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112 |
>>> f = CategoryForm({'name': 'Third test', 'url': 'third'}) |
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113 |
>>> f.is_valid() |
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114 |
True |
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115 |
>>> f.clean_data |
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116 |
{'url': u'third', 'name': u'Third test'} |
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117 |
>>> obj = f.save(commit=False) |
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118 |
>>> obj |
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119 |
<Category: Third test> |
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>>> Category.objects.all() |
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121 |
[<Category: Entertainment>, <Category: It's a test>] |
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122 |
>>> obj.save() |
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123 |
>>> Category.objects.all() |
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[<Category: Entertainment>, <Category: It's a test>, <Category: Third test>] |
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125 |
|
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126 |
If you call save() with invalid data, you'll get a ValueError. |
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127 |
>>> f = CategoryForm({'name': '', 'url': 'foo'}) |
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128 |
>>> f.errors |
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129 |
{'name': [u'This field is required.']} |
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>>> f.clean_data |
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131 |
Traceback (most recent call last): |
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132 |
... |
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133 |
AttributeError: 'CategoryForm' object has no attribute 'clean_data' |
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134 |
>>> f.save() |
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135 |
Traceback (most recent call last): |
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136 |
... |
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137 |
ValueError: The Category could not be created because the data didn't validate. |
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138 |
>>> f = CategoryForm({'name': '', 'url': 'foo'}) |
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139 |
>>> f.save() |
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140 |
Traceback (most recent call last): |
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141 |
... |
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142 |
ValueError: The Category could not be created because the data didn't validate. |
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143 |
|
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144 |
Create a couple of Writers. |
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>>> w = Writer(name='Mike Royko') |
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146 |
>>> w.save() |
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147 |
>>> w = Writer(name='Bob Woodward') |
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148 |
>>> w.save() |
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149 |
|
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150 |
ManyToManyFields are represented by a MultipleChoiceField, and ForeignKeys are |
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151 |
represented by a ChoiceField. |
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152 |
>>> ArticleForm = form_for_model(Article) |
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153 |
>>> f = ArticleForm(auto_id=False) |
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154 |
>>> print f |
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<tr><th>Headline:</th><td><input type="text" name="headline" maxlength="50" /></td></tr> |
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156 |
<tr><th>Pub date:</th><td><input type="text" name="pub_date" /></td></tr> |
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157 |
<tr><th>Writer:</th><td><select name="writer"> |
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158 |
<option value="" selected="selected">---------</option> |
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159 |
<option value="1">Mike Royko</option> |
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160 |
<option value="2">Bob Woodward</option> |
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161 |
</select></td></tr> |
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162 |
<tr><th>Article:</th><td><textarea name="article"></textarea></td></tr> |
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163 |
<tr><th>Categories:</th><td><select multiple="multiple" name="categories"> |
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164 |
<option value="1">Entertainment</option> |
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165 |
<option value="2">It's a test</option> |
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166 |
<option value="3">Third test</option> |
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167 |
</select><br /> Hold down "Control", or "Command" on a Mac, to select more than one.</td></tr> |
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168 |
|
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169 |
You can pass a custom Form class to form_for_model. Make sure it's a |
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170 |
subclass of BaseForm, not Form. |
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171 |
>>> class CustomForm(BaseForm): |
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172 |
... def say_hello(self): |
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173 |
... print 'hello' |
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174 |
>>> CategoryForm = form_for_model(Category, form=CustomForm) |
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175 |
>>> f = CategoryForm() |
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176 |
>>> f.say_hello() |
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177 |
hello |
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178 |
|
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179 |
Use form_for_instance to create a Form from a model instance. The difference |
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180 |
between this Form and one created via form_for_model is that the object's |
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181 |
current values are inserted as 'initial' data in each Field. |
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182 |
>>> w = Writer.objects.get(name='Mike Royko') |
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183 |
>>> RoykoForm = form_for_instance(w) |
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184 |
>>> f = RoykoForm(auto_id=False) |
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185 |
>>> print f |
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186 |
<tr><th>Name:</th><td><input type="text" name="name" value="Mike Royko" maxlength="50" /><br />Use both first and last names.</td></tr> |
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187 |
|
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188 |
>>> art = Article(headline='Test article', pub_date=datetime.date(1988, 1, 4), writer=w, article='Hello.') |
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189 |
>>> art.save() |
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190 |
>>> art.id |
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191 |
1 |
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192 |
>>> TestArticleForm = form_for_instance(art) |
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193 |
>>> f = TestArticleForm(auto_id=False) |
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194 |
>>> print f.as_ul() |
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195 |
<li>Headline: <input type="text" name="headline" value="Test article" maxlength="50" /></li> |
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196 |
<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" /></li> |
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197 |
<li>Writer: <select name="writer"> |
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198 |
<option value="">---------</option> |
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199 |
<option value="1" selected="selected">Mike Royko</option> |
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200 |
<option value="2">Bob Woodward</option> |
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201 |
</select></li> |
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202 |
<li>Article: <textarea name="article">Hello.</textarea></li> |
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203 |
<li>Categories: <select multiple="multiple" name="categories"> |
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204 |
<option value="1">Entertainment</option> |
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205 |
<option value="2">It's a test</option> |
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206 |
<option value="3">Third test</option> |
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207 |
</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li> |
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208 |
>>> f = TestArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04', 'writer': u'1', 'article': 'Hello.'}) |
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209 |
>>> f.is_valid() |
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210 |
True |
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211 |
>>> new_art = f.save() |
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212 |
>>> new_art.id |
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213 |
1 |
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214 |
>>> new_art = Article.objects.get(id=1) |
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215 |
>>> new_art.headline |
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216 |
'New headline' |
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217 |
|
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218 |
Add some categories and test the many-to-many form output. |
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219 |
>>> new_art.categories.all() |
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[] |
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>>> new_art.categories.add(Category.objects.get(name='Entertainment')) |
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>>> new_art.categories.all() |
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[<Category: Entertainment>] |
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>>> TestArticleForm = form_for_instance(new_art) |
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>>> f = TestArticleForm(auto_id=False) |
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>>> print f.as_ul() |
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<li>Headline: <input type="text" name="headline" value="New headline" maxlength="50" /></li> |
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<li>Pub date: <input type="text" name="pub_date" value="1988-01-04" /></li> |
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<li>Writer: <select name="writer"> |
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<option value="">---------</option> |
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<option value="1" selected="selected">Mike Royko</option> |
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<option value="2">Bob Woodward</option> |
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</select></li> |
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<li>Article: <textarea name="article">Hello.</textarea></li> |
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<li>Categories: <select multiple="multiple" name="categories"> |
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<option value="1" selected="selected">Entertainment</option> |
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<option value="2">It's a test</option> |
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<option value="3">Third test</option> |
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</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li> |
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|
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>>> f = TestArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04', |
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... 'writer': u'1', 'article': u'Hello.', 'categories': [u'1', u'2']}) |
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>>> new_art = f.save() |
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>>> new_art.id |
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1 |
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>>> new_art = Article.objects.get(id=1) |
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>>> new_art.categories.all() |
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[<Category: Entertainment>, <Category: It's a test>] |
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249 |
|
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Now, submit form data with no categories. This deletes the existing categories. |
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>>> f = TestArticleForm({'headline': u'New headline', 'pub_date': u'1988-01-04', |
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... 'writer': u'1', 'article': u'Hello.'}) |
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>>> new_art = f.save() |
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>>> new_art.id |
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1 |
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>>> new_art = Article.objects.get(id=1) |
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>>> new_art.categories.all() |
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258 |
[] |
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259 |
|
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Create a new article, with categories, via the form. |
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>>> ArticleForm = form_for_model(Article) |
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>>> f = ArticleForm({'headline': u'The walrus was Paul', 'pub_date': u'1967-11-01', |
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... 'writer': u'1', 'article': u'Test.', 'categories': [u'1', u'2']}) |
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264 |
>>> new_art = f.save() |
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265 |
>>> new_art.id |
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266 |
2 |
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>>> new_art = Article.objects.get(id=2) |
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268 |
>>> new_art.categories.all() |
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269 |
[<Category: Entertainment>, <Category: It's a test>] |
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270 |
|
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Create a new article, with no categories, via the form. |
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>>> ArticleForm = form_for_model(Article) |
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273 |
>>> f = ArticleForm({'headline': u'The walrus was Paul', 'pub_date': u'1967-11-01', |
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... 'writer': u'1', 'article': u'Test.'}) |
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275 |
>>> new_art = f.save() |
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276 |
>>> new_art.id |
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277 |
3 |
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278 |
>>> new_art = Article.objects.get(id=3) |
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279 |
>>> new_art.categories.all() |
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280 |
[] |
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281 |
|
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282 |
Here, we define a custom Form. Because it happens to have the same fields as |
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283 |
the Category model, we can use save_instance() to apply its changes to an |
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284 |
existing Category instance. |
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285 |
>>> class ShortCategory(Form): |
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286 |
... name = CharField(max_length=5) |
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287 |
... url = CharField(max_length=3) |
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288 |
>>> cat = Category.objects.get(name='Third test') |
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289 |
>>> cat |
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290 |
<Category: Third test> |
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291 |
>>> cat.id |
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292 |
3 |
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293 |
>>> sc = ShortCategory({'name': 'Third', 'url': '3rd'}) |
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294 |
>>> save_instance(sc, cat) |
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295 |
<Category: Third> |
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296 |
>>> Category.objects.get(id=3) |
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297 |
<Category: Third> |
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298 |
|
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299 |
Here, we demonstrate that choices for a ForeignKey ChoiceField are determined |
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300 |
at runtime, based on the data in the database when the form is displayed, not |
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301 |
the data in the database when the form is instantiated. |
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302 |
>>> ArticleForm = form_for_model(Article) |
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303 |
>>> f = ArticleForm(auto_id=False) |
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304 |
>>> print f.as_ul() |
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|
305 |
<li>Headline: <input type="text" name="headline" maxlength="50" /></li> |
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306 |
<li>Pub date: <input type="text" name="pub_date" /></li> |
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307 |
<li>Writer: <select name="writer"> |
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308 |
<option value="" selected="selected">---------</option> |
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309 |
<option value="1">Mike Royko</option> |
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310 |
<option value="2">Bob Woodward</option> |
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311 |
</select></li> |
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312 |
<li>Article: <textarea name="article"></textarea></li> |
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313 |
<li>Categories: <select multiple="multiple" name="categories"> |
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314 |
<option value="1">Entertainment</option> |
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315 |
<option value="2">It's a test</option> |
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316 |
<option value="3">Third</option> |
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|
317 |
</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li> |
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318 |
>>> Category.objects.create(name='Fourth', url='4th') |
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319 |
<Category: Fourth> |
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320 |
>>> Writer.objects.create(name='Carl Bernstein') |
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321 |
<Writer: Carl Bernstein> |
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|
322 |
>>> print f.as_ul() |
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323 |
<li>Headline: <input type="text" name="headline" maxlength="50" /></li> |
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|
324 |
<li>Pub date: <input type="text" name="pub_date" /></li> |
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325 |
<li>Writer: <select name="writer"> |
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326 |
<option value="" selected="selected">---------</option> |
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|
327 |
<option value="1">Mike Royko</option> |
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parents:
diff
changeset
|
328 |
<option value="2">Bob Woodward</option> |
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parents:
diff
changeset
|
329 |
<option value="3">Carl Bernstein</option> |
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parents:
diff
changeset
|
330 |
</select></li> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
331 |
<li>Article: <textarea name="article"></textarea></li> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
332 |
<li>Categories: <select multiple="multiple" name="categories"> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
333 |
<option value="1">Entertainment</option> |
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parents:
diff
changeset
|
334 |
<option value="2">It's a test</option> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
335 |
<option value="3">Third</option> |
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parents:
diff
changeset
|
336 |
<option value="4">Fourth</option> |
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parents:
diff
changeset
|
337 |
</select> Hold down "Control", or "Command" on a Mac, to select more than one.</li> |
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parents:
diff
changeset
|
338 |
|
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
339 |
# ModelChoiceField ############################################################ |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
340 |
|
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
341 |
>>> from django.newforms import ModelChoiceField, ModelMultipleChoiceField |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
342 |
|
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
343 |
>>> f = ModelChoiceField(Category.objects.all()) |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
344 |
>>> f.clean('') |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
345 |
Traceback (most recent call last): |
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parents:
diff
changeset
|
346 |
... |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
347 |
ValidationError: [u'This field is required.'] |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
348 |
>>> f.clean(None) |
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parents:
diff
changeset
|
349 |
Traceback (most recent call last): |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
350 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
351 |
ValidationError: [u'This field is required.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
352 |
>>> f.clean(0) |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
353 |
Traceback (most recent call last): |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
354 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
355 |
ValidationError: [u'Select a valid choice. That choice is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
356 |
>>> f.clean(3) |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
357 |
<Category: Third> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
358 |
>>> f.clean(2) |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
359 |
<Category: It's a test> |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
360 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
361 |
# Add a Category object *after* the ModelChoiceField has already been |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
362 |
# instantiated. This proves clean() checks the database during clean() rather |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
363 |
# than caching it at time of instantiation. |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
364 |
>>> Category.objects.create(name='Fifth', url='5th') |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
365 |
<Category: Fifth> |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
366 |
>>> f.clean(5) |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
367 |
<Category: Fifth> |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
368 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
369 |
# Delete a Category object *after* the ModelChoiceField has already been |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
370 |
# instantiated. This proves clean() checks the database during clean() rather |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
371 |
# than caching it at time of instantiation. |
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
372 |
>>> Category.objects.get(url='5th').delete() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
373 |
>>> f.clean(5) |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
374 |
Traceback (most recent call last): |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
375 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
376 |
ValidationError: [u'Select a valid choice. That choice is not one of the available choices.'] |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
377 |
|
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
378 |
>>> f = ModelChoiceField(Category.objects.filter(pk=1), required=False) |
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
379 |
>>> print f.clean('') |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
380 |
None |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
381 |
>>> f.clean('') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
382 |
>>> f.clean('1') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
383 |
<Category: Entertainment> |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
384 |
>>> f.clean('100') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
385 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
386 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
387 |
ValidationError: [u'Select a valid choice. That choice is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
388 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
389 |
# ModelMultipleChoiceField #################################################### |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
390 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
391 |
>>> f = ModelMultipleChoiceField(Category.objects.all()) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
392 |
>>> f.clean(None) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
393 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
394 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
395 |
ValidationError: [u'This field is required.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
396 |
>>> f.clean([]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
397 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
398 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
399 |
ValidationError: [u'This field is required.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
400 |
>>> f.clean([1]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
401 |
[<Category: Entertainment>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
402 |
>>> f.clean([2]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
403 |
[<Category: It's a test>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
404 |
>>> f.clean(['1']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
405 |
[<Category: Entertainment>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
406 |
>>> f.clean(['1', '2']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
407 |
[<Category: Entertainment>, <Category: It's a test>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
408 |
>>> f.clean([1, '2']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
409 |
[<Category: Entertainment>, <Category: It's a test>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
410 |
>>> f.clean((1, '2')) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
411 |
[<Category: Entertainment>, <Category: It's a test>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
412 |
>>> f.clean(['100']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
413 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
414 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
415 |
ValidationError: [u'Select a valid choice. 100 is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
416 |
>>> f.clean('hello') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
417 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
418 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
419 |
ValidationError: [u'Enter a list of values.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
420 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
421 |
# Add a Category object *after* the ModelChoiceField has already been |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
422 |
# instantiated. This proves clean() checks the database during clean() rather |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
423 |
# than caching it at time of instantiation. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
424 |
>>> Category.objects.create(id=6, name='Sixth', url='6th') |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
425 |
<Category: Sixth> |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
426 |
>>> f.clean([6]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
427 |
[<Category: Sixth>] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
428 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
429 |
# Delete a Category object *after* the ModelChoiceField has already been |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
430 |
# instantiated. This proves clean() checks the database during clean() rather |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
431 |
# than caching it at time of instantiation. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
432 |
>>> Category.objects.get(url='6th').delete() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
433 |
>>> f.clean([6]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
434 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
435 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
436 |
ValidationError: [u'Select a valid choice. 6 is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
437 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
438 |
>>> f = ModelMultipleChoiceField(Category.objects.all(), required=False) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
439 |
>>> f.clean([]) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
440 |
[] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
441 |
>>> f.clean(()) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
442 |
[] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
443 |
>>> f.clean(['10']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
444 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
445 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
446 |
ValidationError: [u'Select a valid choice. 10 is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
447 |
>>> f.clean(['3', '10']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
448 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
449 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
450 |
ValidationError: [u'Select a valid choice. 10 is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
451 |
>>> f.clean(['1', '10']) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
452 |
Traceback (most recent call last): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
453 |
... |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
454 |
ValidationError: [u'Select a valid choice. 10 is not one of the available choices.'] |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
455 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
456 |
# PhoneNumberField ############################################################ |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
457 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
458 |
>>> PhoneNumberForm = form_for_model(PhoneNumber) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
459 |
>>> f = PhoneNumberForm({'phone': '(312) 555-1212', 'description': 'Assistance'}) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
460 |
>>> f.is_valid() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
461 |
True |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
462 |
>>> f.clean_data |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
463 |
{'phone': u'312-555-1212', 'description': u'Assistance'} |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
464 |
"""} |