diff options
Diffstat (limited to 'hugo/doc/html/transformations.html')
| -rw-r--r-- | hugo/doc/html/transformations.html | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/hugo/doc/html/transformations.html b/hugo/doc/html/transformations.html new file mode 100644 index 0000000..64ada63 --- /dev/null +++ b/hugo/doc/html/transformations.html @@ -0,0 +1,240 @@ + + +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> + + +<html xmlns="http://www.w3.org/1999/xhtml"> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> + + <title>Transformations — phpMyAdmin 4.0.7 documentation</title> + + <link rel="stylesheet" href="_static/default.css" type="text/css" /> + <link rel="stylesheet" href="_static/pygments.css" type="text/css" /> + + <script type="text/javascript"> + var DOCUMENTATION_OPTIONS = { + URL_ROOT: '', + VERSION: '4.0.7', + COLLAPSE_INDEX: false, + FILE_SUFFIX: '.html', + HAS_SOURCE: true + }; + </script> + <script type="text/javascript" src="_static/jquery.js"></script> + <script type="text/javascript" src="_static/underscore.js"></script> + <script type="text/javascript" src="_static/doctools.js"></script> + <link rel="copyright" title="Copyright" href="copyright.html" /> + <link rel="top" title="phpMyAdmin 4.0.7 documentation" href="index.html" /> + <link rel="up" title="User Guide" href="user.html" /> + <link rel="next" title="User management" href="privileges.html" /> + <link rel="prev" title="User Guide" href="user.html" /> + </head> + <body> + <div class="related"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + accesskey="I">index</a></li> + <li class="right" > + <a href="privileges.html" title="User management" + accesskey="N">next</a> |</li> + <li class="right" > + <a href="user.html" title="User Guide" + accesskey="P">previous</a> |</li> + <li><a href="index.html">phpMyAdmin 4.0.7 documentation</a> »</li> + <li><a href="user.html" accesskey="U">User Guide</a> »</li> + </ul> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body"> + + <div class="section" id="transformations"> +<span id="id1"></span><h1>Transformations<a class="headerlink" href="#transformations" title="Permalink to this headline">¶</a></h1> +<div class="section" id="introduction"> +<span id="transformationsintro"></span><h2>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h2> +<p>To enable transformations, you have to setup the <tt class="docutils literal"><span class="pre">column_info</span></tt> +table and the proper directives. Please see the <a class="reference internal" href="config.html#config"><em>Configuration</em></a> on how to do so.</p> +<p>You can apply different transformations to the contents of each +column. The transformation will take the content of each column and +transform it with certain rules defined in the selected +transformation.</p> +<p>Say you have a column ‘filename’ which contains a filename. Normally +you would see in phpMyAdmin only this filename. Using transformations +you can transform that filename into a HTML link, so you can click +inside of the phpMyAdmin structure on the column’s link and will see +the file displayed in a new browser window. Using transformation +options you can also specify strings to append/prepend to a string or +the format you want the output stored in.</p> +<p>For a general overview of all available transformations and their +options, you can consult your <em><www.your-host.com>/<your-install- +dir>/transformation_overview.php</em> installation.</p> +<p>For a tutorial on how to effectively use transformations, see our +<a class="reference external" href="http://www.phpmyadmin.net/home_page/docs.php">Link section</a> on the +official phpMyAdmin homepage.</p> +</div> +<div class="section" id="usage"> +<span id="transformationshowto"></span><h2>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h2> +<p>Go to your <em>tbl_structure.php</em> page (i.e. reached through clicking on +the ‘Structure’ link for a table). There click on “Change” (or change +icon) and there you will see three new fields at the end of the line. +They are called ‘MIME-type’, ‘Browser transformation’ and +‘Transformation options’.</p> +<ul class="simple"> +<li>The field ‘MIME-type’ is a drop-down field. Select the MIME-type that +corresponds to the column’s contents. Please note that transformations +are inactive as long as no MIME-type is selected.</li> +<li>The field ‘Browser transformation’ is a drop-down field. You can +choose from a hopefully growing amount of pre-defined transformations. +See below for information on how to build your own transformation. +There are global transformations and mimetype-bound transformations. +Global transformations can be used for any mimetype. They will take +the mimetype, if necessary, into regard. Mimetype-bound +transformations usually only operate on a certain mimetype. There are +transformations which operate on the main mimetype (like ‘image’), +which will most likely take the subtype into regard, and those who +only operate on a specific subtype (like ‘image/jpeg’). You can use +transformations on mimetypes for which the function was not defined +for. There is no security check for you selected the right +transformation, so take care of what the output will be like.</li> +<li>The field ‘Transformation options’ is a free-type textfield. You have +to enter transform-function specific options here. Usually the +transforms can operate with default options, but it is generally a +good idea to look up the overview to see which options are necessary. +Much like the ENUM/SET-Fields, you have to split up several options +using the format ‘a’,’b’,’c’,...(NOTE THE MISSING BLANKS). This is +because internally the options will be parsed as an array, leaving the +first value the first element in the array, and so forth. If you want +to specify a MIME character set you can define it in the +transformation_options. You have to put that outside of the pre- +defined options of the specific mime-transform, as the last value of +the set. Use the format “’; charset=XXX’”. If you use a transform, for +which you can specify 2 options and you want to append a character +set, enter “‘first parameter’,’second parameter’,’charset=us-ascii’”. +You can, however use the defaults for the parameters: “’‘,’‘,’charset +=us-ascii’”.</li> +</ul> +</div> +<div class="section" id="file-structure"> +<span id="transformationsfiles"></span><h2>File structure<a class="headerlink" href="#file-structure" title="Permalink to this headline">¶</a></h2> +<p>All specific transformations for mimetypes are defined through class +files in the directory ‘libraries/plugins/transformations/’. Each of +them extends a certain transformation abstract class declared in +libraries/plugins/transformations/abstract.</p> +<p>They are stored in files to ease up customization and easy adding of +new transformations.</p> +<p>Because the user cannot enter own mimetypes, it is kept sure that +transformations always work. It makes no sense to apply a +transformation to a mimetype the transform-function doesn’t know to +handle.</p> +<p>There is a file called ‘<em>transformations.lib.php</em>‘ that provides some +basic functions which can be included by any other transform function.</p> +<p>The file name convention is <tt class="docutils literal"><span class="pre">[Mimetype]_[Subtype]_[Transformation</span> +<span class="pre">Name].class.php</span></tt>, while the abtract class that it extends has the +name <tt class="docutils literal"><span class="pre">[Transformation</span> <span class="pre">Name]TransformationsPlugin</span></tt>. All of the +methods that have to be implemented by a transformations plug-in are:</p> +<ol class="arabic simple"> +<li>getMIMEType() and getMIMESubtype() in the main class;</li> +<li>getName(), getInfo() and applyTransformation() in the abstract class +it extends.</li> +</ol> +<p>The getMIMEType(), getMIMESubtype() and getName() methods return the +name of the MIME type, MIME Subtype and transformation accordingly. +getInfo() returns the transformation’s description and possible +options it may receive and applyTransformation() is the method that +does the actual work of the transformation plug-in.</p> +<p>Please see the libraries/plugins/transformations/TEMPLATE and +libraries/plugins/transformations/TEMPLATE_ABSTRACT files for adding +your own transformation plug-in. You can also generate a new +transformation plug-in (with or without the abstract transformation +class), by using +<tt class="file docutils literal"><span class="pre">libraries/plugins/transformations/generator_plugin.sh</span></tt> or +<tt class="file docutils literal"><span class="pre">libraries/plugins/transformations/generator_main_class.sh</span></tt>.</p> +<p>The applyTransformation() method always gets passed three variables:</p> +<ol class="arabic simple"> +<li><strong>$buffer</strong> - Contains the text inside of the column. This is the +text, you want to transform.</li> +<li><strong>$options</strong> - Contains any user-passed options to a transform +function as an array.</li> +<li><strong>$meta</strong> - Contains an object with information about your column. The +data is drawn from the output of the <a class="reference external" href="http://www.php.net/mysql_fetch_field">mysql_fetch_field()</a> function. This means, all +object properties described on the <a class="reference external" href="http://www.php.net/mysql_fetch_field">manual page</a> are available in this +variable and can be used to transform a column accordingly to +unsigned/zerofill/not_null/... properties. The $meta->mimetype +variable contains the original MIME-type of the column (i.e. +‘text/plain’, ‘image/jpeg’ etc.)</li> +</ol> +</div> +</div> + + + </div> + </div> + </div> + <div class="sphinxsidebar"> + <div class="sphinxsidebarwrapper"> + <h3><a href="index.html">Table Of Contents</a></h3> + <ul> +<li><a class="reference internal" href="#">Transformations</a><ul> +<li><a class="reference internal" href="#introduction">Introduction</a></li> +<li><a class="reference internal" href="#usage">Usage</a></li> +<li><a class="reference internal" href="#file-structure">File structure</a></li> +</ul> +</li> +</ul> + + <h4>Previous topic</h4> + <p class="topless"><a href="user.html" + title="previous chapter">User Guide</a></p> + <h4>Next topic</h4> + <p class="topless"><a href="privileges.html" + title="next chapter">User management</a></p> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a href="_sources/transformations.txt" + rel="nofollow">Show Source</a></li> + </ul> +<div id="searchbox" style="display: none"> + <h3>Quick search</h3> + <form class="search" action="search.html" method="get"> + <input type="text" name="q" /> + <input type="submit" value="Go" /> + <input type="hidden" name="check_keywords" value="yes" /> + <input type="hidden" name="area" value="default" /> + </form> + <p class="searchtip" style="font-size: 90%"> + Enter search terms or a module, class or function name. + </p> +</div> +<script type="text/javascript">$('#searchbox').show(0);</script> + </div> + </div> + <div class="clearer"></div> + </div> + <div class="related"> + <h3>Navigation</h3> + <ul> + <li class="right" style="margin-right: 10px"> + <a href="genindex.html" title="General Index" + >index</a></li> + <li class="right" > + <a href="privileges.html" title="User management" + >next</a> |</li> + <li class="right" > + <a href="user.html" title="User Guide" + >previous</a> |</li> + <li><a href="index.html">phpMyAdmin 4.0.7 documentation</a> »</li> + <li><a href="user.html" >User Guide</a> »</li> + </ul> + </div> + <div class="footer"> + © <a href="copyright.html">Copyright</a> 2012 - 2013, The phpMyAdmin devel team. + Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3. + </div> + </body> +</html>
\ No newline at end of file |
