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Preface. 1. Chapter 1: Social Networking and Elgg. 7. Social features. 8. Profiles.
8. Relationships. 8. Content sharing. 8. Activity and notifications. 8. Groups. 8.
Elgg 1.8 Social Networking
Create, customize, and deploy your very
networking site
with
Elgg
Cash Costello
open
PACKT PUBLISHING
BIRMINGHAM
source*
community experience distilled
-
MUMBAI
own
social
Table of Contents Preface
1
Chapter 1: Social Networking and Elgg
7
Social features
8
Profiles
8
Relationships Content sharing Activity and notifications Groups
8
Communication
9
What is The
8
8 8 9
Elgg?
10
Elgg engine
11
User management
11
controls
Privacy Theming Commenting Tagging Widgets
12
Internationalization
13
Feeds
13
Web services
14
11 12 12
The power of plugins Bundled plugins
14
Third-party plugins
14
Themes
15
Building
your
own
14
plugins
Case studies Niche social network Designing and building the Deploying the site
15 15
16 site
16 16
Table of Contents 17
Plugins mentioned Corporate intranet
17
Designing and building the site Deploying the site Plugins mentioned Educational collaboration Designing and building the site Deploying the site
17 18 18
18 19 19
Plugins mentioned
19
Elgg resources Elgg community
20
20
Elgg wiki
Developer
20
20
resources
A few words of advice
20
Take notes
20
Save
21
resources
Be methodical
21
Finding help Summary Chapter 2: Installing Elgg
21
21 23
Preparing the server Checking requirements Downloading the latest version Extracting the files files to your web Configuring the server
Moving
server
23
24 24
25
directory
Create the database
Run
25
27 28
Elgg's installer Loading the database Configure Elgg Creating the admin account
29
All done!
34
Summary Chapter 3: A Tour of Your First Elgg Site
31 32
33 35 37
Getting around Registering users
38
User
40
profiles
and avatars
39
Profile information
41
Avatar
42
Profile
widgets
43
Table of Contents Friends
45
Activity stream
47
Tools
48
Blogs
48
Bookmarks
49
Files
50
Groups Pages Messages
50
The wire
53
User
52 53 54
settings
Your
settings
54
Tools
55
Notifications
55
Administration
56
Activating plugins Site categories Custom profile fields Default widgets
58
Site pages Reported content
60
58 59
59 61
Customizing your site User registration and authentication
61
62
Widgets Friendship model
62
Roles
62
62
and support
Help Summary Chapter 4: Sharing Content Blogs Creating
63
65 66
a
67
blog post
Embedding photos and Publishing Finding and viewing Search Lists of
63
files
68
69
69 70
blog posts
70
RSS feeds
71
Widget
72
Commenting
72
Use
cases
73
Customizations
73
Table
of Contents 74
Bookmarks
Adding
a
bookmark
74 76
Bookmarklet
Viewing
77
Use
78
cases
79
File
Uploading Viewing
a
file
79 80
cases
83
Customizations
83
Use
83
The wire
Posting Viewing
84
Twitter
86
integration
85
cases
89
Customizations
90
Use
Summary Chapter 5: Communities, Collaboration, and Conversation Groups Creating a group Group profile
9°
91 92
92 94
Membership
95
Discussion forum
96
Group tools Finding groups
98
99
cases
100
Customizations
100
Pages Creating pages Viewing
101
Use
Use cases
Customizations
102 103 104
104
Messages
104
Inbox
104
Composing
105
Customizations
106
Message board Customizations
Summary
106 108
108
Table of Contents
Chapter 6: Finding and Using Plugins Plugin administration Filtering and sorting Plugin dependencies Plugin settings Finding plugins Browsing the repository Searching Evaluating before downloading Look at the
plugin
overview
Read the comments Check the
history
Custom
plugins Installing plugins Test server
Invalid
and
109 109
110 113
113 115 115 115 115
115 116
116
116 117
the code
Copying Activating
109
configuring
plugin?
Troubleshooting Themes
Finding and installing themes Free themes
117 117 118
118 118
119 119
Commercial themes
120
Custom themes
120
Installing themes
121
Major community plugins Tidypics Plugin profile
122 122 122
Administration
123
Uploading photos Viewing photos Tagging photos
124
Event calendar
124 126
126
Plugin profile
127
Administration
127
Site calendar
127
Group calendar Profile Manager Plugin profile Adding profile fields Configuring the profile fields Plugin settings
Summary
128
128 128 129 130 130
131
Table
of Contents
Chapter
7:
Creating Your First Plugin
133
What you need to know
134
Elgg developer resources Setting up your development environment Editing code Configuring your site Hello, World! Plugin skeleton
135
Create your plugin directory
Plugin manifest Start script Activating the hello world plugin Register for the init, system event
136
136 137 138 138 138 139 139 140
140
Adding a new route Creating a web page Update routing
141
Add to the site
144
142 143
menu
Extending the page handler Add a sidebar menu
145
Language support
148
Personalizing
the content
Organizing your content into views A
greeting
view
149 150 151
A stats view
153
Review
155
Debugging Debugging to the log Debugging to the screen Debugging PHP through an IDE Firebug and other browser development tools Elgg developer tools Inspect Theming sandbox
155 156 157 158 159 161 161 162
Summary
162
Chapter 8: Customization through Plugins Lesson 1:
146
Changing wording
163 164
Problem
164
Solution
164
Example Step Step
164
1: Create the 2: Find the
Step 3: Override
plugin
structure
165
language strings
166
the
166
language string
Table
Exercise Lesson 2:
of Contents 167
Modifying
a
section of
a
page
167
Problem
167
Solution
168
Example
168
Step 1: Find the view to override Step 2: Create the plugin structure Step 3: Edit the logo view Step 4: Style the header Exercise Lesson 3:
Adding
new
168 170 170 172
173
content to
a
page
173
Problem
173
Solution
173
Example
174
Step 1: Find the view to extend Step 2: Create the plugin structure Step 3: Build our view Step 4: Make the tips random Exercise Lesson 4:
175 175 175 176
177
Doing something when
X
happens
178
Problem
178
Solution
178
Example
178
Step 1: Find the event Step 2: Create the plugin structure Step 3: Write the function that sends Exercise Lesson 5:
Step 1: Create the plugin structure Step 2: Load the JavaScript file Step 3: Add CSS and JavaScript initialization Exercise
194
196
Lesson 8: Changing how Elgg does X
197
194 195
Problem
197
Solution
197
Example
197
Step 1: Create the plugin structure Step 2: Create the index page Step 3: Define the views Step 4: Add the CSS Step 5: Add a plugin setting Exercise Lesson 9:
Collecting
and
storing data
198 199 201
203 204
206 207
Problem
207
Solution
207
Example
207
Overview
Step 1: Create the plugin structure Step 2: Create the main help page Step 3: Create the categories Step 4: Add an administration page Step 5: Create the form body Step 6: Create the save action Step 7: Create the help category page Step 8: Create the help object view Step 9: Add the help sidebar Step 10: Add CSS for the topic listing page Step 11: Finish the main help page Exercise
Summary
208 208
209 211 212 213 215 217 219 221 222 223
225 226
Chapter 9: Theming Elgg
227
What you need to know
228
Theming basics Elgg's default theme
228 228
HTML
229
CSS
231
JavaScript Graphics
232
233
-
Table of Contents
Views system What is
a
233
view?
233
Extending a view Overriding a view Template language Caching The viewtype
234 234 234 235 235
Tools
235
CSS framework
236
Creating abstractions of common visual patterns Customizing objects through extension classes Adding external JavaScript and CSS
238
Menu
238
system
Registering a menu Rendering a menu
item
Comparing theming Building a theme Plugin structure
236 237
239 240
in WordPress to
Elgg
240
241 242
244
Layout Default
layout
244
Page header
244
Page body layout Page footer
244 245
Moving the search box
246
Styling
the sidebar module
Moving
the site
menu
to the
247
topbar
Creating a mobile theme Plugin structure Layout
251 252 253
CSS
253
Summary
256
Chapter 10: Moving to Production
Selecting
248
Performance considerations
Competing
for resources
Usage patterns General guidelines
257 258
a server
258 258 259
for
server
selection
260
Hosting options
260
Shared hosting
261
Virtual Private Server
261
Dedicated
262
server
Cloud
hosting Hosting company selection
Configuring Apache
a server
262
262
263 263
Table
of Contents
PHP
264
MySQL
266
Cron
267
E-mail
268
Managing the site Backup
268 269
Code
269
Database
269
Files
270
Server configuration
270 270
Restoring Log rotation
270
Spam
271 271
Registration Detecting spammers Web analytics
Daily
272
273
273
tasks
Monitoring user registration Reviewing reported content Responding to feedback Community management Testing, upgrading, and moving
273 273 273 274 a
site
274
274
Testing Mirroring the production site Test plan
274 275
276
Upgrading Moving a site
277
Performance
278 278
Benchmarking Monitoring and data collection Stress testing
278 279
Easy performance gains
280
Advanced
281
performance tuning and scaling
281
Caching Multiple servers
282
Resources
282
Reporting bugs Steps to reproduce the problem Elgg or plugin? Reporting the bug Summary Appendix A: Developer's Quick Start Guide Overview of What is
Elgg Elgg?
as a
framework
283 283 284 284
284 285 285 286
Table of Contents
Object-oriented Does it
use
Convention
or
286
procedural?
the Model-View-Controller or
pattern?
286
configuration?
Is it extensible? What
286
template engine is used?
A Model-View-Controller
286
perspective
287 of
Elgg
287
Overview
287
Controllers
287
Model
288
Views
289
Routing
290
Code location Actions
290
290
Code location
290
Page handlers
291
Code location
291
Framework
booting
Code location
291 292
Data model
292
Entities
292
Type
and
subtype
293
GUID
293
Owner
293
Container
293
Access
293
Database
294
Relationships
294
Extenders
294
Database
295
Retrieval functions
296
Code location
296
Views View
297
templates
297
Page shells and layout type Overriding and extending views Special views
298
Code location
299
View
Events and hooks
298 299 299 300
Elgg events Plugin hooks
300
Code location
301
300
Table of Contents
301
Plugins Initialization
302
Plugin order
302
Conventions
302
Themes
303
Code location
303
stream
304
Code location
304
Activity
Notifications Code location Internationalization and localization Code location
Lightning
round
304 304 305 305 305
Authentication
306
Caching Configuration Debugging and logging JavaScript
