Merge branch 'develop' of https://github.com/EllisLab/CodeIgniter into feature/form_error_msgs

Conflicts:
	system/language/english/form_validation_lang.php

1 files changed, 140 insertions, 12 deletions

diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index e27ff8877..5f6d5912c 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -19,6 +19,7 @@ Release Date: Not Released
 
 -  General Changes
 
+   -  PHP 5.1.6 is no longer supported. CodeIgniter now requires PHP 5.2.4.
    -  Added an optional backtrace to php-error template.
    -  Added Android to the list of user agents.
    -  Added Windows 7 to the list of user platforms.
@@ -28,46 +29,105 @@ Release Date: Not Released
    -  Added support for 3gp, 3g2, mp4, wmv, f4v, vlc Video files to mimes.php.
    -  Added support for m4a, aac, m4u, xspf, au, ac3, flac, ogg Audio files to mimes.php.
    -  Added support for kmz and kml (Google Earth) files to mimes.php.
+   -  Updated support for doc files in mimes.php.
    -  Added application/xml for xml and application/xml, text/xsl for xsl in mimes.php.
    -  Changed logger to only chmod when file is first created.
    -  Removed previously deprecated SHA1 Library.
    -  Removed previously deprecated use of ``$autoload['core']`` in application/config/autoload.php.
       Only entries in ``$autoload['libraries']`` are auto-loaded now.
+   -  Added some more doctypes.
+   -  Updated all classes to be written in PHP 5 style, with visibility declarations and no ``var`` usage for properties.
 
 -  Helpers
 
    -  url_title() will now trim extra dashes from beginning and end.
    -  Added XHTML Basic 1.1 doctype to :doc:`HTML Helper <helpers/html_helper>`.
    -  Changed humanize to include a second param for the separator.
+   -  Refactored ``plural()`` and ``singular()`` to avoid double pluralization and support more words.
+   -  Added an optional third parameter to ``force_download()`` that enables/disables sending the actual file MIME type in the Content-Type header (disabled by default).
+   -  Added an optional third parameter to ``timespan()`` that constrains the number of time units displayed.
+   -  Added a work-around in force_download() for a bug Android <= 2.1, where the filename extension needs to be in uppercase.
+   -  form_dropdown() will now also take an array for unity with other form helpers.
+   -  set_realpath() can now also handle file paths as opposed to just directories.
+   -  do_hash() now uses PHP's native hash() function, supporting more algorithms.
+   -  Added an optional paramater to ``delete_files()`` to enable it to skip deleting files such as .htaccess and index.html.
 
 -  Database
 
    -  Added new :doc:`Active Record <database/active_record>` methods that return
       the SQL string of queries without executing them: get_compiled_select(),
       get_compiled_insert(), get_compiled_update(), get_compiled_delete().
-   -  Taking care of LIKE condition when used with MySQL UPDATE statement.
    -  Adding $escape parameter to the order_by function, this enables ordering by custom fields.
-   -  MySQLi driver now uses mysqli_get_server_info() for server version checking.
-   -  MySQLi driver now supports persistent connections when running on PHP >= 5.3.
+   -  Improved support for the MySQLi driver, including:
+	 -  OOP style of the PHP extension is now used, instead of the procedural aliases.
+	 -  Server version checking is now done via ``mysqli::$server_info`` instead of running an SQL query.
+	 -  Added persistent connections support for PHP >= 5.3.
+   -  Added 'dsn' configuration setting for drivers that support DSN strings (PDO, PostgreSQL, Oracle, ODBC, CUBRID).
+   -  Improved PDO database support.
+   -  Added Interbase/Firebird database support via the "interbase" driver
+   -  Added an optional database name parameter to db_select().
+   -  Replaced the _error_message() and _error_number() methods with error(), that returns an array containing the last database error code and message.
+   -  Improved version() implementation so that drivers that have a native function to get the version number don't have to be defined in the core DB_driver class.
+   -  Improved support of the PostgreSQL driver, including:
+	 -  pg_version() is now used to get the database version number, when possible.
+	 -  Added db_set_charset() support.
+	 -  Added _optimize_table() support for the :doc:`Database Utility Class <database/utilities>` (rebuilds table indexes).
+   -  Added a constructor to the DB_result class and moved all driver-specific properties and logic out of the base DB_driver class to allow better abstraction.
+   -  Removed limit() and order_by() support for UPDATE and DELETE queries in PostgreSQL driver. Postgres does not support those features.
+   -  Removed protect_identifiers() and renamed internal method _protect_identifiers() to it instead - it was just an alias.
+   -  MySQL and MySQLi drivers now require at least MySQL version 5.1.
+   -  db_set_charset() now only requires one parameter (collation was only needed due to legacy support for MySQL versions prior to 5.1).
+   -  Added DSN string support for CUBRID.
+   -  Added persistent connections support for CUBRID.
+   -  Added random ordering support for MSSQL, SQLSRV.
+   -  Added support for SQLite3 database driver.
+   -  Improved support of the Oracle (OCI8) driver, including:
+	 -  Added DSN string support (Easy Connect and TNS).
+	 -  Added support for dropping tables to :doc:`Database Forge <database/forge>`.
+	 -  Added support for listing database schemas to :doc:`Database Utilities <database/utilities>`.
+	 -  Generally improved for speed and cleaned up all of its components.
+	 -  *Row* result methods now really only fetch only the needed number of rows, instead of depending entirely on result().
+	 -  num_rows() is now only called explicitly by the developer and no longer re-executes statements.
+   -  Added replace() support for SQLite.
+   -  Renamed internal method _escape_identifiers() to escape_identifiers().
+   -  Added SQLite support for drop_table() in :doc:`Database Forge <database/forge>`.
+   -  Added ODBC support for create_database(), drop_database() and drop_table() in :doc:`Database Forge <database/forge>`.
+   -  Added PDO support for create_database(), drop_database and drop_table() in :doc:`Database Forge <database/forge>`.
+   -  Added MSSQL, SQLSRV support for optimize_table() in :doc:`Database Utility <database/utilities>`.
+   -  Improved CUBRID support for list_databases() in :doc:`Database Utility <database/utilities>` (until now only the currently used database was returned).
 
 -  Libraries
 
    -  Added max_filename_increment config setting for Upload library.
    -  CI_Loader::_ci_autoloader() is now a protected method.
-   -  Modified valid_ip() to use PHP's filter_var() when possible (>= PHP 5.2) in the :doc:`Form Validation library <libraries/form_validation>`.
-	 -  Added custom filename to Email::attach() as $this->email->attach($filename, $disposition, $newname)
+   -  Added custom filename to Email::attach() as $this->email->attach($filename, $disposition, $newname).
+   -  Added possibility to send attachment as buffer string in Email::attach() as $this->email->attach($buffer, $disposition, $newname, $mime).
    -  Cart library changes include:
 	 -  It now auto-increments quantity's instead of just resetting it, this is the default behaviour of large e-commerce sites.
 	 -  Product Name strictness can be disabled via the Cart Library by switching "$product_name_safe"
 	 -  Added function remove() to remove a cart item, updating with quantity of 0 seemed like a hack but has remained to retain compatability
-   -  Image manipulation library changes include:
+   -  :doc:`Image Manipulation library <libraries/image_lib>` changes include:
 	 -  The initialize() method now only sets existing class properties.
 	 -  Added support for 3-length hex color values for wm_font_color and wm_shadow_color properties, as well as validation for them.
 	 -  Class properties wm_font_color, wm_shadow_color and wm_use_drop_shadow are now protected, to avoid breaking the text_watermark() method
 	    if they are set manually after initialization.
+	 -  If property maintain_ratio is set to TRUE, image_reproportion() now doesn't need both width and height to be specified.
    -  Minor speed optimizations and method & property visibility declarations in the Calendar Library.
    -  Removed SHA1 function in the :doc:`Encryption Library <libraries/encryption>`.
    -  Added $config['csrf_regeneration'] to the CSRF protection in the :doc:`Security library <libraries/security>`, which makes token regeneration optional.
+   -  :doc:`Form Validation library <libraries/form_validation>` changes include:
+	 -  Added method error_array() to return all error messages as an array.
+	 -  Added method set_data() to set an alternative data array to be validated instead of the default $_POST.
+	 -  Added method reset_validation(), which resets internal validation variables in case of multiple validation routines.
+	 -  Added support for setting error delimiters in the config file via $config['error_prefix'] and $config['error_suffix'].
+	 -  _execute() now considers input data to be invalid if a specified rule is not found.
+	 -  Removed method is_numeric() as it exists as a native PHP function and _execute() will find and use that (the 'is_numeric' rule itself is deprecated since 1.6.1).
+	 -  Native PHP functions used as rules can now accept an additional parameter, other than the data itself.
+   -  Changed the :doc:`Session Library <libraries/sessions>` to select only one row when using database sessions.
+   -  Added all_flashdata() method to session class. Returns an associative array of only flashdata.
+   -  Allowed for setting table class defaults in a config file.
+   -  Added a Wincache driver to the :doc:`Caching Library <libraries/caching>`.
+   -  Added dsn (delivery status notification) option to the :doc:`Email Library <libraries/email>`.
 
 -  Core
 
@@ -75,13 +135,18 @@ Release Date: Not Released
    -  Removed CI_CORE boolean constant from CodeIgniter.php (no longer Reactor and Core versions).
    -  Added method get_vars() to CI_Loader to retrieve all variables loaded with $this->load->vars().
    -  is_loaded() function from system/core/Commons.php now returns a reference.
+   -  $config['rewrite_short_tags'] now has no effect when using PHP 5.4 as *<?=* will always be available.
+   -  Added method() to CI_Input to retrieve $_SERVER['REQUEST_METHOD'].
+   -  Modified valid_ip() to use PHP's filter_var() in the :doc:`Input Library <libraries/input>`.
+   -  Added support for HTTP-Only cookies with new config option ``cookie_httponly`` (default FALSE).
+   -  Renamed method _call_hook() to call_hook() in the :doc:`Hooks Library <general/hooks>`.
+   -  Added get_content_type() method to the :doc:`Output Library <libraries/output>`.
 
 Bug fixes for 3.0
 ------------------
 
 -  Unlink raised an error if cache file did not exist when you try to delete it.
--  Fixed a bug (#181) where a mis-spelling was in the form validation
-   language file.
+-  Fixed a bug (#181) where a mis-spelling was in the form validation language file.
 -  Fixed a bug (#159, #163) that mishandled Active Record nested transactions because _trans_depth was not getting incremented.
 -  Fixed a bug (#737, #75) where pagination anchor class was not set properly when using initialize method.
 -  Fixed a bug (#419) - auto_link() now recognizes URLs that come after a word boundary.
@@ -99,11 +164,76 @@ Bug fixes for 3.0
 -  In Pagination library, when use_page_numbers=TRUE previous link and page 1 link do not have the same url
 -  Fixed a bug (#561) - Errors in :doc:`XML-RPC Library <libraries/xmlrpc>` were not properly escaped.
 -  Fixed a bug (#904) - ``CI_Loader::initialize()`` caused a PHP Fatal error to be triggered if error level E_STRICT is used.
+-  Fixed a hosting edge case where an empty $_SERVER['HTTPS'] variable would evaluate to 'on'
+-  Fixed a bug (#154) - ``CI_Session::sess_update()`` caused the session to be destroyed on pages where multiple AJAX requests were executed at once.
+-  Fixed a possible bug in ``CI_Input::is_ajax_request()`` where some clients might not send the X-Requested-With HTTP header value exactly as 'XmlHttpRequest'.
+-  Fixed a bug (#1039) - MySQL's _backup() method failed due to a table name not being escaped.
+-  Fixed a bug (#1070) - CI_DB_driver::initialize() didn't set a character set if a database is not selected.
+-  Fixed a bug (#177) - CI_Form_validation::set_value() didn't set the default value if POST data is NULL.
+-  Fixed a bug (#68, #414) - Oracle's escape_str() didn't properly escape LIKE wild characters.
+-  Fixed a bug (#81) - ODBC's list_fields() and field_data() methods skipped the first column due to odbc_field_*() functions' index starting at 1 instead of 0.
+-  Fixed a bug (#129) - ODBC's num_rows() returned -1 in some cases, due to not all subdrivers supporting the odbc_num_rows() function.
+-  Fixed a bug (#153) - E_NOTICE being generated by getimagesize() in the :doc:`File Uploading Library <libraries/file_uploading>`.
+-  Fixed a bug (#611) - SQLSRV's error handling methods used to issue warnings when there's no actual error.
+-  Fixed a bug (#1036) - is_write_type() method in the :doc:`Database Library <database/index>` didn't return TRUE for RENAME and OPTIMIZE queries.
+-  Fixed a bug in PDO's _version() method where it used to return the client version as opposed to the server one.
+-  Fixed a bug in PDO's insert_id() method where it could've failed if it's used with Postgre versions prior to 8.1.
+-  Fixed a bug in CUBRID's affected_rows() method where a connection resource was passed to cubrid_affected_rows() instead of a result.
+-  Fixed a bug (#638) - db_set_charset() ignored its arguments and always used the configured charset instead.
+-  Fixed a bug (#413) - Oracle's error handling methods used to only return connection-related errors.
+-  Fixed a bug (#804) - Profiler library was trying to handle objects as strings in some cases, resulting in warnings being issued by htmlspecialchars().
+-  Fixed a bug (#1101) - MySQL/MySQLi result method field_data() was implemented as if it was handling a DESCRIBE result instead of the actual result set.
+-  Fixed a bug in Oracle's :doc:`Database Forge Class <database/forge>` method _create_table() where it failed with AUTO_INCREMENT as it's not supported.
+-  Fixed a bug (#1080) - When using the SMTP protocol, the :doc:`Email Library <libraries/email>` send() method was returning TRUE even if the connection/authentication against the server failed.
+-  Fixed a bug (#499) - a CSRF cookie was created even with CSRF protection being disabled.
+-  Fixed a bug (#306) - ODBC's insert_id() method was calling non-existent function odbc_insert_id(), which resulted in a fatal error.
+-  Fixed a bug in Oracle's DB_result class where the cursor id passed to it was always NULL.
+-  Fixed a bug (#64) - Regular expression in DB_active_rec.php failed to handle queries containing SQL bracket delimiters in the join condition.
+-  Fixed a bug in the :doc:`Session Library <libraries/sessions>` where a PHP E_NOTICE error was triggered by _unserialize() due to results from databases such as MSSQL and Oracle being space-padded on the right.
+-  Fixed a bug (#501) - set_rules() to check if the request method is not 'POST' before aborting, instead of depending on count($_POST) in the :doc:`Form Validation Library <libraries/form_validation>`.
+-  Fixed a bug (#940) - csrf_verify() used to set the CSRF cookie while processing a POST request with no actual POST data, which resulted in validating a request that should be considered invalid.
+-  Fixed a bug in PostgreSQL's escape_str() where it didn't properly escape LIKE wild characters.
+-  Fixed a bug in the library loader where some PHP versions wouldn't execute the class constructor.
+-  Fixed a bug (#88) - An unexisting property was used for configuration of the Memcache cache driver.
+-  Fixed a bug (#14) - create_database() method in the :doc:`Database Forge Library <database/forge>` didn't utilize the configured database character set.
+-  Fixed a bug (#1238) - delete_all() in the `Database Caching Library <database/caching>` used to delete .htaccess and index.html files, which is a potential security risk.
+-  Fixed a bug in :doc:`Trackback Library <libraries/trackback>` method validate_url() where it didn't actually do anything, due to input not being passed by reference.
+-  Fixed a bug (#11, #183, #863) - CI_Form_validation::_execute() silently continued to the next rule, if a rule method/function is not found.
+-  Fixed a bug (#1242) - read_dir() in the :doc:`Zip Library <libraries/zip>` wasn't compatible with Windows.
+-  Fixed a bug (#306) - ODBC driver didn't have an _insert_batch() method, which resulted in fatal error being triggered when insert_batch() is used with it.
+-  Fixed a bug in MSSQL and SQLSrv's _truncate() where the TABLE keyword was missing.
+-  Fixed a bug in PDO's trans_commit() method where it failed due to an erroneous property name.
+-  Fixed a bug (#798) - update() used to ignore LIKE conditions that were set with like().
+-  Fixed a bug in Oracle's and MSSQL's delete() methods where an erroneous SQL statement was generated when used with limit().
+-  Fixed a bug in SQLSRV's delete() method where like() and limit() conditions were ignored.
+
+Version 2.1.1
+=============
+
+Release Date: Not Released
+
+-  General Changes
+   -  Fixed support for docx, xlsx files in mimes.php.
+
+-  Libraries
+   -  Further improved MIME type detection in the :doc:`File Uploading Library <libraries/file_uploading>`.
+
+-  Helpers
+   -  url_title() performance and output improved. You can now use any string as the word delimiter, but 'dash' and 'underscore' are still supported.
+
+Bug fixes for 2.1.1
+-------------------
+
+-  Fixed a bug (#697) - A wrong array key was used in the Upload library to check for mime-types.
+-  Fixed a bug - form_open() compared $action against site_url() instead of base_url().
+-  Fixed a bug - CI_Upload::_file_mime_type() could've failed if mime_content_type() is used for the detection and returns FALSE.
+-  Fixed a bug (#538) - Windows paths were ignored when using the :doc:`Image Manipulation Library <libraries/image_lib>` to create a new file.
+-  Fixed a bug - When database caching was enabled, $this->db->query() checked the cache before binding variables which resulted in cached queries never being found
 
 Version 2.1.0
 =============
 
-Release Date: Not Released
+Release Date: November 14, 2011
 
 -  General Changes
 
@@ -161,11 +291,9 @@ Release Date: Not Released
       override them.
    -  Removed CI_CORE boolean constant from CodeIgniter.php (no longer Reactor and Core versions).
 
-
 Bug fixes for 2.1.0
 -------------------
 
-
 -  Fixed #378 Robots identified as regular browsers by the User Agent
    class.
 -  If a config class was loaded first then a library with the same name
@@ -1164,7 +1292,7 @@ Bug fixes for 1.6.3
 
 -  Added a language key for valid_emails in validation_lang.php.
 -  Amended fixes for bug (#3419) with parsing DSN database connections.
--  Moved the _has_operators() function (#4535) into DB_driver from
+-  Moved the _has_operator() function (#4535) into DB_driver from
    DB_active_rec.
 -  Fixed a syntax error in upload_lang.php.
 -  Fixed a bug (#4542) with a regular expression in the Image library.