Rails%203%20In%20Action

x
9
10
CONTENTS
8.5 Restricting write access 185
Rewriting a feature 185 ■ Blocking creation 187 ■ What is
CanCan? 188 ■ Adding abilities 189
8.6 Restricting update access 190
No updating for you! 191 ■ Authorizing editing 192
8.7 Restricting delete access 193
Enforcing destroy protection 193 ■ Hiding links based on
permission 194
8.8 Assigning permissions 198
Viewing projects 198 ■ And the rest 206
8.9 Seed data 209
8.10 Summary 212
File uploading 213
9.1 Attaching a file 214
A feature featuring files 214 ■ Enter stage right, Paperclip 216
Using Paperclip 217
9.2 Attaching many files 220
Two more files 221 ■ Using nested attributes 224
9.3 Serving files through a controller 226
Protecting files 227 ■ Showing your assets 228 ■ Public
assets 230 ■ Privatizing assets 230
9.4 Using JavaScript 231
JavaScript testing 232 ■ Introducing jQuery 233 ■ Adding
more files with JavaScript 234 ■ Responding to an asynchronous
request 235 ■ Sending parameters for an asynchronous
request 237
9.5 Summary 241
Tracking state 243
10.1 Leaving a comment 244
Where’s the ticket? 245 ■ The comment form 247
The comment model 247 ■ The comments controller 249
10.2 Changing a ticket’s state 252
Creating the State model 253 ■ Selecting states 255
Callbacks 257 ■ Seeding states 259 ■ Fixing creating
comments 261