Trudeau Christopher - Django in Action [2024, PDF, ENG]

Примеры страниц (скриншоты)

Оглавление

foreword xi
preface xiii
acknowledgments xv
about this book xvii
about the author xxi
about the cover illustration xxii
PART 1 DJANGO ESSENTIAL 1
1 Django unfolds 3
1.1 Django’s parts 4
Mapping URLs, Django views, and the MVC model 8
Databases: Dynamic sites need data 11 ■ Structuring HTML for
reuse 13 ■ Multiuser sites 15
1.2 What can you do with Django? 15
Server-side, single-page, and mixed-page applications 16
When and where you should use it 17 ■ Potential projects 18
The RiffMates project 19
2 Your first Django site 21
2.1 The RiffMates project 21
2.2 Creating a Django project 22
2.3 Projects vs. apps 29
2.4 Your first Django app 32
2.5 Your first Django view 33
2.6 Registering a route 36
2.7 Visiting your view 37
2.8 Exercises 38
3 Templates 40
3.1 Where to use templates 40
3.2 Context objects and the parts of a Template 41
3.3 Django shell 43
3.4 Rendering a Template 43
3.5 Common tags and filters 46
Conditional blocks 46 ■ Looping blocks 47 ■ Comment
blocks 49 ■ Verbatim blocks 49 ■ Referencing URLs 50
Common filters 51
3.6 Using render() in a view 51
3.7 Escaping special characters 56
3.8 Composing templates out of blocks 59
Writing a base template file 60 ■ Including an HTML snippet 62
3.9 Exercises 63
4 Django ORM 65
4.1 Interacting with a database 65
4.2 ORM Models 68
4.3 SQLite and dbshell 71
4.4 Model queries 73
Using .all() and .filter() to fetch QuerySet results 75
Field look-ups 77
4.5 Modifying your data 79
4.6 Querying models in views 81
Using URL arguments 81 ■ Listing pages 86 ■ Using query
parameters for pagination 87
4.7 Model relations 89
One-to-many relationships 90 ■ Many-to-many relationships 94
4.8 Model fields 97
Popular cross-field field options 97 ■ Popular fields 98
4.9 Fixtures 99
4.10 Danger zone, or know thy SQL 103
4.11 Exercises 103
5 Django Admin 105
5.1 Touring the Django Admin 105
Creating an admin user 107 ■ The default Django Admin 108
Adding your own models 109
5.2 Customizing a listing page 113
Sorting and searching 114 ■ Filtering 115 ■ New in
Django 5: Facets 119
5.3 Cross-linking between related objects 119
5.4 Model Meta properties 122
Sort order 122 ■ Indexes 122 ■ Uniqueness 123
Object names 124
5.5 Exercises 124
PART 2 DJANGO BUILDING BLOCKS 127
6 User management 129
6.1 Multiuser websites 129
6.2 Storing user data 131
Choosing a user account mechanism 131 ■ Adding a
user profile 134
6.3 Restricting access to views 137
6.4 Authorization in views 139
Handling logouts 141
6.5 Using signals to automatically create a user profile 142
6.6 Password management 145
Password reset page 146 ■ Password reset email 147
New password form 149
6.7 Exercises 150
7 Forms, user data, static files, and uploads 152
7.1 Web forms 153
Handling GET and POST in views 155 ■ CSRF 160
Beautifying web forms 160 ■ New in Django 5: Reusable field
group templates 161
7.2 Django ModelForm 162
Validating fields in a model 162 ■ A ModelAdmin for
SeekingAd using Truncate 165 ■ Writing a ModelForm 166
Using SeekingAdForm in a view 169 ■ Editing existing data
with forms 172
7.3 Serving static files 175
7.4 Uploads 178
Configuring your project for uploads 178 ■ Storing and
referencing uploaded files 180 ■ File upload forms and
views 183 ■ Restricted file downloads 188
7.5 Exercises 188
8 Testing your project 191
8.1 Automated testing 191
The scope of tests 192 ■ Automated testing in Python 194
8.2 Your first Django test 194
8.3 Testing with the database 197
8.4 Expecting errors 201
8.5 Authenticating and posting data 202
8.6 Testing with file uploads 206
8.7 More testing techniques 207
LiveServerTestCase for Selenium 208 ■ Third-party
helpers 208
8.8 Measuring tests and code quality 209
8.9 Exercises 210
9 Management commands 213
9.1 Management commands in practice 213
Built-in management commands 214 ■ Changing a
password 216 ■ Configuration 217 ■ Flushing the
database 217 ■ SQL commands 218
9.2 Writing your own management command 219
9.3 Handling arguments 222
Built-in arguments 227
9.4 Testing, and using STDOUT and STDERR 228
9.5 Exercises 229
10 Migration 232
10.1 Migration scripts in detail 232
An initial migration 234 ■ Changing a model 236
10.2 Migration with existing data 238
10.3 Squashing a migration 243
10.4 More migration choices 245
10.5 Exercises 248
PART 3 DJANGO PROJECTS 251
11 APIs 253
11.1 Why use an API? 253
CRUD and REST 255 ■ Versioning an API 258
11.2 Building an API with Django Ninja 258
Serializing objects 261 ■ Handling arguments 264
Filtering your listings 268 ■ Nesting data 271
Authenticating your API 272 ■ Creating objects with the
API 274 ■ Updating and deleting with the API 277
11.3 Other API libraries 279
11.4 Exercises 281
12 Making your pages more dynamic with HTMX 283
12.1 Dynamic web pages 283
12.2 HTMX attributes 284
12.3 Lazy loading 286
12.4 Search-as-you-type with infinite scroll 288
12.5 Click to edit 295
12.6 Exercises 299
13 Django power tools 301
13.1 Django Debug Toolbar 302
13.2 Tool libraries 304
Django Extensions 305 ■ Django Awl 305
13.3 Look and feel 307
Django Grappelli 307 ■ Crispy forms 307 ■ Favicons 309
13.4 Feature flags 310
13.5 Static sites 311
14 Where to go next 315
14.1 Within Django 315
14.2 Configuration 317
14.3 Dealing with data 318
14.4 Web tools 319
14.5 Asynchronous actions 320
14.6 A wide world 321
appendix A Installation and setup 323
appendix B Django in a production environment 330
appendix C Django template tag and filter reference 347
appendix D Django ORM field reference 357
appendix E Sample exercise solutions 364
index 401