Gitiles
Code Review Sign In
www.giggi.me / code-igniter-v3-giggi / 10034fcdd56097e7dbbab59c1bd5e1191c465e73 / . / user_guide / installation / upgrade_200.html
blob: b2aafa1d80c7798705c309dffe6af1bd975792cc [file] [log] [blame]
Andrey Andreevc5769952019-01-16 17:49:35 +0200[diff] [blame]1
2
3<!DOCTYPE html>
4<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
5<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
6<head>
7 <meta charset="utf-8">
8 <meta name="viewport" content="width=device-width, initial-scale=1.0">
9
10 <title>Upgrading from 1.7.2 to 2.0.0 &mdash; CodeIgniter 3.1.10 documentation</title>
11
12
13
14
15 <link rel="shortcut icon" href="../_static/ci-icon.ico"/>
16
17
18
19 <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'>
20
21
22
23
24
25
26
27
28
29 <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" />
30
31
32
33 <link rel="index" title="Index"
34 href="../genindex.html"/>
35 <link rel="search" title="Search" href="../search.html"/>
36 <link rel="top" title="CodeIgniter 3.1.10 documentation" href="../index.html"/>
37 <link rel="up" title="Upgrading From a Previous Version" href="upgrading.html"/>
38 <link rel="next" title="Upgrading from 1.7.1 to 1.7.2" href="upgrade_172.html"/>
39 <link rel="prev" title="Upgrading from 2.0.0 to 2.0.1" href="upgrade_201.html"/>
40
41
42 <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
43
44</head>
45
46<body class="wy-body-for-nav" role="document">
47
48 <div id="nav">
49 <div id="nav_inner">
50
51
52
53 <div id="pulldown-menu" class="ciNav">
54 <ul>
55<li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
56</ul>
57<ul class="current">
58<li class="toctree-l1 current"><a class="reference internal" href="index.html">Installation Instructions</a><ul class="current">
59<li class="toctree-l2"><a class="reference internal" href="downloads.html">Downloading CodeIgniter</a></li>
60<li class="toctree-l2"><a class="reference internal" href="index.html">Installation Instructions</a></li>
61<li class="toctree-l2 current"><a class="reference internal" href="upgrading.html">Upgrading From a Previous Version</a></li>
62<li class="toctree-l2"><a class="reference internal" href="troubleshooting.html">Troubleshooting</a></li>
63</ul>
64</li>
65</ul>
66<ul>
67<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
68<li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
69<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
70<li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
71<li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
72<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
73<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
74</ul>
75</li>
76</ul>
77<ul>
78<li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
79<li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
80<li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
81<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
82<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
83</ul>
84</li>
85</ul>
86<ul>
87<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
88<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
89<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
90</ul>
91</li>
92</ul>
93<ul>
94<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
95<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
96<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
97<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
98<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
99<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
100<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
101<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
102<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
103<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
104<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
105<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
106<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
107<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
108<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
109<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
110<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
111<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
112<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
113<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
114<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
115<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
116<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
117<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
118<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
119<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
120<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
121</ul>
122</li>
123</ul>
124<ul>
125<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul>
126<li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li>
127<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
128<li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
129<li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li>
130<li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
131<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
132<li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li>
133<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li>
134<li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li>
135<li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li>
136<li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
137<li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li>
138<li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
139<li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li>
140<li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li>
141<li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
142<li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
143<li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
144<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
145<li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
146<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
147<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
148<li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
149<li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
150<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
151<li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
152<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
153<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
154<li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
155<li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
156</ul>
157</li>
158</ul>
159<ul>
160<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
161<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
162<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
163<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
164<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
165<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
166<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
167<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
168<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
169<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
170<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
171<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
172<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
173<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
174<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
175</ul>
176</li>
177</ul>
178<ul>
179<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
180<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
181<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
182<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
183<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
184<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
185<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
186<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
187<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
188<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
189<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
190<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
191<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
192<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
193<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
194<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
195<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
196<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
197<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
198<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
199<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
200<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
201</ul>
202</li>
203</ul>
204
205 </div>
206
207
208 </div>
209</div>
210<div id="nav2">
211 <a href="#" id="openToc">
212 <img src="data:image/jpeg;base64,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" title="Toggle Table of Contents" alt="Toggle Table of Contents" />
213 </a>
214</div>
215
216 <div class="wy-grid-for-nav">
217
218
219 <nav data-toggle="wy-nav-shift" class="wy-nav-side">
220 <div class="wy-side-nav-search">
221
222 <a href="../index.html" class="fa fa-home"> CodeIgniter</a>
223
224
225<div role="search">
226 <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
227 <input type="text" name="q" placeholder="Search docs" />
228 <input type="hidden" name="check_keywords" value="yes" />
229 <input type="hidden" name="area" value="default" />
230 </form>
231</div>
232 </div>
233
234 <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
235
236
237
238 <ul>
239<li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
240</ul>
241<ul class="current">
242<li class="toctree-l1 current"><a class="reference internal" href="index.html">Installation Instructions</a><ul class="current">
243<li class="toctree-l2"><a class="reference internal" href="downloads.html">Downloading CodeIgniter</a></li>
244<li class="toctree-l2"><a class="reference internal" href="index.html">Installation Instructions</a></li>
245<li class="toctree-l2 current"><a class="reference internal" href="upgrading.html">Upgrading From a Previous Version</a></li>
246<li class="toctree-l2"><a class="reference internal" href="troubleshooting.html">Troubleshooting</a></li>
247</ul>
248</li>
249</ul>
250<ul>
251<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
252<li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
253<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
254<li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
255<li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
256<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
257<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
258</ul>
259</li>
260</ul>
261<ul>
262<li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
263<li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
264<li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
265<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
266<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
267</ul>
268</li>
269</ul>
270<ul>
271<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
272<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
273<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
274</ul>
275</li>
276</ul>
277<ul>
278<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
279<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
280<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
281<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
282<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
283<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
284<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
285<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
286<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
287<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
288<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
289<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
290<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
291<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
292<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
293<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
294<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
295<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
296<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
297<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
298<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
299<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
300<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
301<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
302<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
303<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
304<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
305</ul>
306</li>
307</ul>
308<ul>
309<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Libraries</a><ul>
310<li class="toctree-l2"><a class="reference internal" href="../libraries/benchmark.html">Benchmarking Class</a></li>
311<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
312<li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
313<li class="toctree-l2"><a class="reference internal" href="../libraries/cart.html">Shopping Cart Class</a></li>
314<li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
315<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
316<li class="toctree-l2"><a class="reference internal" href="../libraries/encrypt.html">Encrypt Class</a></li>
317<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Library</a></li>
318<li class="toctree-l2"><a class="reference internal" href="../libraries/file_uploading.html">File Uploading Class</a></li>
319<li class="toctree-l2"><a class="reference internal" href="../libraries/form_validation.html">Form Validation</a></li>
320<li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
321<li class="toctree-l2"><a class="reference internal" href="../libraries/image_lib.html">Image Manipulation Class</a></li>
322<li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
323<li class="toctree-l2"><a class="reference internal" href="../libraries/javascript.html">Javascript Class</a></li>
324<li class="toctree-l2"><a class="reference internal" href="../libraries/language.html">Language Class</a></li>
325<li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
326<li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
327<li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
328<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
329<li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
330<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
331<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
332<li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
333<li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
334<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
335<li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
336<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
337<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
338<li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
339<li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
340</ul>
341</li>
342</ul>
343<ul>
344<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
345<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
346<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
347<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
348<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
349<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
350<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
351<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
352<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
353<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
354<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
355<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
356<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
357<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
358<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
359</ul>
360</li>
361</ul>
362<ul>
363<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
364<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
365<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
366<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
367<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
368<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
369<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
370<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
371<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
372<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
373<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
374<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
375<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
376<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
377<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
378<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
379<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
380<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
381<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
382<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
383<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
384<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
385</ul>
386</li>
387</ul>
388
389
390
391 </div>
392 &nbsp;
393 </nav>
394
395 <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
396
397
398 <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
399 <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
400 <a href="../index.html">CodeIgniter</a>
401 </nav>
402
403
404
405 <div class="wy-nav-content">
406 <div class="rst-content">
407 <div role="navigation" aria-label="breadcrumbs navigation">
408 <ul class="wy-breadcrumbs">
409 <li><a href="../index.html">Docs</a> &raquo;</li>
410
411 <li><a href="index.html">Installation Instructions</a> &raquo;</li>
412
413 <li><a href="upgrading.html">Upgrading From a Previous Version</a> &raquo;</li>
414
415 <li>Upgrading from 1.7.2 to 2.0.0</li>
416 <li class="wy-breadcrumbs-aside">
417
418 </li>
419 <div style="float:right;margin-left:5px;" id="closeMe">
420 <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
421 </div>
422 </ul>
423 <hr/>
424</div>
425 <div role="main" class="document">
426
427 <div class="section" id="upgrading-from-1-7-2-to-2-0-0">
428<h1>Upgrading from 1.7.2 to 2.0.0<a class="headerlink" href="#upgrading-from-1-7-2-to-2-0-0" title="Permalink to this headline"></a></h1>
429<p>Before performing an update you should take your site offline by
430replacing the index.php file with a static one.</p>
431<div class="section" id="update-instructions">
432<h2>Update Instructions<a class="headerlink" href="#update-instructions" title="Permalink to this headline"></a></h2>
433<div class="section" id="step-1-update-your-codeigniter-files">
434<h3>Step 1: Update your CodeIgniter files<a class="headerlink" href="#step-1-update-your-codeigniter-files" title="Permalink to this headline"></a></h3>
435<p>Replace all files and directories in your “system” folder <strong>except</strong>
436your application folder.</p>
437<div class="admonition note">
438<p class="first admonition-title">Note</p>
439<p class="last">If you have any custom developed files in these folders please
440make copies of them first.</p>
441</div>
442</div>
443<div class="section" id="step-2-adjust-get-dir-file-info-where-necessary">
444<h3>Step 2: Adjust get_dir_file_info() where necessary<a class="headerlink" href="#step-2-adjust-get-dir-file-info-where-necessary" title="Permalink to this headline"></a></h3>
445<p>Version 2.0.0 brings a non-backwards compatible change to
446get_dir_file_info() in the <a class="reference internal" href="../helpers/file_helper.html"><span class="doc">File
447Helper</span></a>. Non-backwards compatible changes
448are extremely rare in CodeIgniter, but this one we feel was warranted
449due to how easy it was to create serious server performance issues. If
450you <em>need</em> recursiveness where you are using this helper function,
451change such instances, setting the second parameter, $top_level_only
452to FALSE:</p>
453<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">get_dir_file_info</span><span class="p">(</span><span class="s1">&#39;/path/to/directory&#39;</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span>
454</pre></div>
455</div>
456</div>
457<div class="section" id="step-3-convert-your-plugins-to-helpers">
458<h3>Step 3: Convert your Plugins to Helpers<a class="headerlink" href="#step-3-convert-your-plugins-to-helpers" title="Permalink to this headline"></a></h3>
459<p>2.0.0 gets rid of the “Plugin” system as their functionality was
460identical to Helpers, but non-extensible. You will need to rename your
461plugin files from filename_pi.php to filename_helper.php, move them to
462your helpers folder, and change all instances of:</p>
463<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">plugin</span><span class="p">(</span><span class="s1">&#39;foo&#39;</span><span class="p">);</span>
464</pre></div>
465</div>
466<p>to</p>
467<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">helper</span><span class="p">(</span><span class="s1">&#39;foo&#39;</span><span class="p">);</span>
468</pre></div>
469</div>
470</div>
471<div class="section" id="step-4-update-stored-encrypted-data">
472<h3>Step 4: Update stored encrypted data<a class="headerlink" href="#step-4-update-stored-encrypted-data" title="Permalink to this headline"></a></h3>
473<div class="admonition note">
474<p class="first admonition-title">Note</p>
475<p class="last">If your application does not use the Encrypt library, does
476not store Encrypted data permanently, or is on an environment that does
477not support Mcrypt, you may skip this step.</p>
478</div>
479<p>The Encrypt library has had a number of improvements, some for
480encryption strength and some for performance, that has an unavoidable
481consequence of making it no longer possible to decode encrypted data
482produced by the original version of this library. To help with the
483transition, a new method has been added, encode_from_legacy() that
484will decode the data with the original algorithm and return a re-encoded
485string using the improved methods. This will enable you to easily
486replace stale encrypted data with fresh in your applications, either on
487the fly or en masse.</p>
488<p>Please read <a class="reference internal" href="../libraries/encrypt.html"><span class="doc">how to use this
489method</span></a> in the Encrypt library
490documentation.</p>
491</div>
492<div class="section" id="step-5-remove-loading-calls-for-the-compatibility-helper">
493<h3>Step 5: Remove loading calls for the compatibility helper.<a class="headerlink" href="#step-5-remove-loading-calls-for-the-compatibility-helper" title="Permalink to this headline"></a></h3>
494<p>The compatibility helper has been removed from the CodeIgniter core. All
495methods in it should be natively available in supported PHP versions.</p>
496</div>
497<div class="section" id="step-6-update-class-extension">
498<h3>Step 6: Update Class extension<a class="headerlink" href="#step-6-update-class-extension" title="Permalink to this headline"></a></h3>
499<p>All core classes are now prefixed with CI_. Update Models and
500Controllers to extend CI_Model and CI_Controller, respectively.</p>
501</div>
502<div class="section" id="step-7-update-parent-constructor-calls">
503<h3>Step 7: Update Parent Constructor calls<a class="headerlink" href="#step-7-update-parent-constructor-calls" title="Permalink to this headline"></a></h3>
504<p>All native CodeIgniter classes now use the PHP 5 __construct()
505convention. Please update extended libraries to call
506parent::__construct().</p>
507</div>
508<div class="section" id="step-8-move-any-core-extensions-to-application-core">
509<h3>Step 8: Move any core extensions to application/core<a class="headerlink" href="#step-8-move-any-core-extensions-to-application-core" title="Permalink to this headline"></a></h3>
510<p>Any extensions to core classes (e.g. MY_Controller.php) in your
511application/libraries folder must be moved to the new
512application/core folder.</p>
513</div>
514<div class="section" id="step-9-update-your-user-guide">
515<h3>Step 9: Update your user guide<a class="headerlink" href="#step-9-update-your-user-guide" title="Permalink to this headline"></a></h3>
516<p>Please replace your local copy of the user guide with the new version,
517including the image files.</p>
518</div>
519</div>
520<div class="section" id="update-notes">
521<h2>Update Notes<a class="headerlink" href="#update-notes" title="Permalink to this headline"></a></h2>
522<p>Please refer to the <a class="reference internal" href="../changelog.html#changelog"><span class="std std-ref">2.0.0 Change Log</span></a> for full
523details, but here are some of the larger changes that are more likely to
524impact your code:</p>
525<ul class="simple">
526<li>Scaffolding has been removed.</li>
527<li>The CAPTCHA plugin in now a <a class="reference internal" href="../helpers/captcha_helper.html"><span class="doc">helper</span></a>.</li>
528<li>The JavaScript calendar plugin was removed.</li>
529<li>The <em>system/cache</em> and <em>system/logs</em> directories are now in the application
530directory.</li>
531<li>The Validation class has been removed. Please see the
532<a class="reference internal" href="../libraries/form_validation.html"><span class="doc">Form Validation library</span></a></li>
533<li>“default” is now a reserved name.</li>
534<li>The xss_clean() function has moved to the <a class="reference internal" href="../libraries/security.html"><span class="doc">Security Class</span></a>.</li>
535<li>do_xss_clean() now returns FALSE if the uploaded file fails XSS checks.</li>
536<li>The <a class="reference internal" href="../libraries/sessions.html"><span class="doc">Session Class</span></a> requires now the use of an
537encryption key set in the config file.</li>
538<li>The following deprecated Active Record functions have been removed:
539<code class="docutils literal"><span class="pre">orwhere</span></code>, <code class="docutils literal"><span class="pre">orlike</span></code>, <code class="docutils literal"><span class="pre">groupby</span></code>, <code class="docutils literal"><span class="pre">orhaving</span></code>, <code class="docutils literal"><span class="pre">orderby</span></code>,
540<code class="docutils literal"><span class="pre">getwhere</span></code>.</li>
541<li><code class="docutils literal"><span class="pre">_drop_database()</span></code> and <code class="docutils literal"><span class="pre">_create_database()</span></code> functions have been removed
542from the db utility drivers.</li>
543<li>The <code class="docutils literal"><span class="pre">dohash()</span></code> function of the <a class="reference internal" href="../helpers/security_helper.html"><span class="doc">Security helper</span></a>
544has been renamed to <code class="docutils literal"><span class="pre">do_hash()</span></code> for naming consistency.</li>
545</ul>
546<div class="section" id="the-config-folder">
547<h3>The config folder<a class="headerlink" href="#the-config-folder" title="Permalink to this headline"></a></h3>
548<p>The following files have been changed:</p>
549<ul class="simple">
550<li>config.php</li>
551<li>database.php</li>
552<li>mimes.php</li>
553<li>routes.php</li>
554<li>user_agents.php</li>
555</ul>
556<p>The following files have been added:</p>
557<ul class="simple">
558<li>foreign_chars.php</li>
559<li>profiler.php</li>
560</ul>
561</div>
562</div>
563</div>
564
565
566 </div>
567 <footer>
568
569 <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
570
571 <a href="upgrade_172.html" class="btn btn-neutral float-right" title="Upgrading from 1.7.1 to 1.7.2">Next <span class="fa fa-arrow-circle-right"></span></a>
572
573
574 <a href="upgrade_201.html" class="btn btn-neutral" title="Upgrading from 2.0.0 to 2.0.1"><span class="fa fa-arrow-circle-left"></span> Previous</a>
575
576 </div>
577
578
579 <hr/>
580
581 <div role="contentinfo">
582 <p>
583 &copy; Copyright 2014 - 2019, British Columbia Institute of Technology.
584 Last updated on Jan 16, 2019.
585 </p>
586 </div>
587
588 Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
589
590</footer>
591 </div>
592 </div>
593
594 </section>
595
596 </div>
597
598
599
600
601
602 <script type="text/javascript">
603 var DOCUMENTATION_OPTIONS = {
604 URL_ROOT:'../',
605 VERSION:'3.1.10',
606 COLLAPSE_INDEX:false,
607 FILE_SUFFIX:'.html',
608 HAS_SOURCE: false
609 };
610 </script>
611 <script type="text/javascript" src="../_static/jquery.js"></script>
612 <script type="text/javascript" src="../_static/underscore.js"></script>
613 <script type="text/javascript" src="../_static/doctools.js"></script>
614
615
616
617
618
619 <script type="text/javascript" src="../_static/js/theme.js"></script>
620
621
622
623
624 <script type="text/javascript">
625 jQuery(function () {
626 SphinxRtdTheme.StickyNav.enable();
627 });
628 </script>
629
630
631</body>
632</html>