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   3  <title>The Trax Naming Convention</title>
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  10      <td class="header_top">PHPonTrax</td>
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  26      <div id="todolist">
  27              <p><a href="../todolist.html">Todo List</a></p>
  28      </div>
  29        <b>Packages:</b><br />
  30                <a href="../li_PHPonTrax.html">PHPonTrax</a><br />
  31                <a href="../li_PHPonTraxTest.html">PHPonTraxTest</a><br />
  32              <br /><br />
  33          <b>Tutorials/Manuals:</b><br />
  34                      <strong>Package-level:</strong>
  35                              <ul>
  36      <li type="square"><a href="../PHPonTrax/tutorial_PHPonTrax.pkg.html">PHP On Trax</a>
  37  <ul>
  38      <li type="square"><a href="../PHPonTrax/tutorial_rails_examples.pkg.html">Examples From The Rails Book</a>
  39  </ul>
  40  
<ul>
  41      <li type="square"><a href="../PHPonTrax/tutorial_simpleapp.pkg.html">Build A Simple Trax Application</a>
  42  </ul>
  43  
<ul>
  44      <li type="square"><a href="../PHPonTrax/tutorial_database.pkg.html">Create A Database and User</a>
  45  </ul>
  46  
<ul>
  47      <li type="square"><a href="../PHPonTrax/tutorial_advbuild.pkg.html">Advanced Application Build Topics</a>
  48  </ul>
  49  
<ul>
  50      <li type="square"><a href="../PHPonTrax/tutorial_naming.pkg.html">The Trax Naming Convention</a>
  51  </ul>
  52  
<ul>
  53      <li type="square"><a href="../PHPonTrax/tutorial_troubleshoot.pkg.html">Troubleshooting</a>
  54  </ul>
  55  
<ul>
  56      <li type="square"><a href="../PHPonTrax/tutorial_reference.pkg.html">Reference</a>
  57  </ul>
  58  
</li></ul>
  59  
  60                                          <strong>Class-level:</strong>
  61                              <ul>
  62      <li type="square"><a href="../PHPonTrax/tutorial_ActiveRecordHelper.cls.html">ActiveRecordHelper</a>
  63  </ul>
  64  
  65                              <ul>
  66      <li type="square"><a href="../PHPonTrax/tutorial_FormTagHelper.cls.html">FormTagHelper</a>
  67  </ul>
  68  
  69                              <ul>
  70      <li type="square"><a href="../PHPonTrax/tutorial_Helpers.cls.html">Helpers</a>
  71  </ul>
  72  
  73                              <ul>
  74      <li type="square"><a href="../PHPonTrax/tutorial_UrlHelper.cls.html">UrlHelper</a>
  75  </ul>
  76  
  77                              <ul>
  78      <li type="square"><a href="../PHPonTrax/tutorial_FormHelper.cls.html">FormHelper</a>
  79  </ul>
  80  
  81                              <ul>
  82      <li type="square"><a href="../PHPonTrax/tutorial_InputFilter.cls.html">InputFilter</a>
  83  </ul>
  84  
  85                              <ul>
  86      <li type="square"><a href="../PHPonTrax/tutorial_ActionMailer.cls.html">ActionMailer</a>
  87  </ul>
  88  
  89                              <ul>
  90      <li type="square"><a href="../PHPonTrax/tutorial_ApplicationController.cls.html">ApplicationController</a>
  91  </ul>
  92  
  93                              <ul>
  94      <li type="square"><a href="../PHPonTrax/tutorial_ActionController.cls.html">ActionController</a>
  95  </ul>
  96  
  97                              <ul>
  98      <li type="square"><a href="../PHPonTrax/tutorial_ActiveRecord.cls.html">ActiveRecord</a>
  99  </ul>
 100  
 101                              <ul>
 102      <li type="square"><a href="../PHPonTrax/tutorial_DateHelper.cls.html">DateHelper</a>
 103  </ul>
 104  
 105                              <ul>
 106      <li type="square"><a href="../PHPonTrax/tutorial_Router.cls.html">Router</a>
 107  </ul>
 108  
 109                              <ul>
 110      <li type="square"><a href="../PHPonTrax/tutorial_FormOptionsHelper.cls.html">FormOptionsHelper</a>
 111  </ul>
 112  
 113                              <ul>
 114      <li type="square"><a href="../PHPonTrax/tutorial_TraxGenerator.cls.html">TraxGenerator</a>
 115  </ul>
 116  
 117                              <ul>
 118      <li type="square"><a href="../PHPonTrax/tutorial_Session.cls.html">Session</a>
 119  </ul>
 120  
 121                              <ul>
 122      <li type="square"><a href="../PHPonTrax/tutorial_Inflector.cls.html">Inflector</a>
 123  </ul>
 124  
 125                              <ul>
 126      <li type="square"><a href="../PHPonTrax/tutorial_ActiveRecordError.cls.html">ActiveRecordError</a>
 127  </ul>
 128  
 129                              <ul>
 130      <li type="square"><a href="../PHPonTrax/tutorial_ActionControllerError.cls.html">ActionControllerError</a>
 131  </ul>
 132  
 133                              <ul>
 134      <li type="square"><a href="../PHPonTrax/tutorial_ScaffoldController.cls.html">ScaffoldController</a>
 135  </ul>
 136  
 137                              <ul>
 138      <li type="square"><a href="../PHPonTrax/tutorial_Dispatcher.cls.html">Dispatcher</a>
 139  </ul>
 140  
 141                              <ul>
 142      <li type="square"><a href="../PHPonTrax/tutorial_TraxError.cls.html">TraxError</a>
 143  </ul>
 144  
 145                              <ul>
 146      <li type="square"><a href="../PHPonTrax/tutorial_ApplicationMailer.cls.html">ApplicationMailer</a>
 147  </ul>
 148  
 149                                                      <b>Files:</b><br />
 150              <div class="package">
 151              <a href="../PHPonTrax/_vendor_trax_action_controller_php.html">        action_controller.php
 152          </a><br>
 153              <a href="../PHPonTrax/_vendor_trax_action_mailer_php.html">        action_mailer.php
 154          </a><br>
 155              <a href="../PHPonTrax/_vendor_trax_action_view_php.html">        action_view.php
 156          </a><br>
 157              <a href="../PHPonTrax/_vendor_trax_active_record_php.html">        active_record.php
 158          </a><br>
 159              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_active_record_helper_php.html">        active_record_helper.php
 160          </a><br>
 161              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_add_phtml.html">        add.phtml
 162          </a><br>
 163              <a href="../PHPonTrax/_data_app_controllers_application_php.html">        application.php
 164          </a><br>
 165              <a href="../PHPonTrax/_data_app_views_layouts_application_phtml.html">        application.phtml
 166          </a><br>
 167              <a href="../PHPonTrax/_data_app_helpers_application_helper_php.html">        application_helper.php
 168          </a><br>
 169              <a href="../PHPonTrax/_data_app_application_mailer_php.html">        application_mailer.php
 170          </a><br>
 171              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_asset_tag_helper_php.html">        asset_tag_helper.php
 172          </a><br>
 173              <a href="../PHPonTrax/_test_layouts_catalog_phtml.html">        catalog.phtml
 174          </a><br>
 175              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_controller_php.html">        controller.php
 176          </a><br>
 177              <a href="../PHPonTrax/_vendor_trax_templates_controller_php.html">        controller.php
 178          </a><br>
 179              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_date_helper_php.html">        date_helper.php
 180          </a><br>
 181              <a href="../PHPonTrax/_data_config_environments_development_php.html">        development.php
 182          </a><br>
 183              <a href="../PHPonTrax/_data_public_dispatch_php.html">        dispatch.php
 184          </a><br>
 185              <a href="../PHPonTrax/_vendor_trax_dispatcher_php.html">        dispatcher.php
 186          </a><br>
 187              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_edit_phtml.html">        edit.phtml
 188          </a><br>
 189              <a href="../PHPonTrax/_data_config_environment_php.html">        environment.php
 190          </a><br>
 191              <a href="../PHPonTrax/_vendor_trax_templates_error_phtml.html">        error.phtml
 192          </a><br>
 193              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_form_helper_php.html">        form_helper.php
 194          </a><br>
 195              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_form_options_helper_php.html">        form_options_helper.php
 196          </a><br>
 197              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_form_scaffolding_phtml.html">        form_scaffolding.phtml
 198          </a><br>
 199              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_form_tag_helper_php.html">        form_tag_helper.php
 200          </a><br>
 201              <a href="../PHPonTrax/_data_script_generate_php.html">        generate.php
 202          </a><br>
 203              <a href="../PHPonTrax/_vendor_trax_templates_helper_php.html">        helper.php
 204          </a><br>
 205              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_php.html">        helpers.php
 206          </a><br>
 207              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_index_phtml.html">        index.phtml
 208          </a><br>
 209              <a href="../PHPonTrax/_vendor_trax_inflector_php.html">        inflector.php
 210          </a><br>
 211              <a href="../PHPonTrax/_vendor_trax_input_filter_php.html">        input_filter.php
 212          </a><br>
 213              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_javascript_helper_php.html">        javascript_helper.php
 214          </a><br>
 215              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_layout_phtml.html">        layout.phtml
 216          </a><br>
 217              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_layout_phtml.html">        layout.phtml
 218          </a><br>
 219              <a href="../PHPonTrax/_makepkg_php.html">        makepkg.php
 220          </a><br>
 221              <a href="../PHPonTrax/_vendor_trax_templates_model_php.html">        model.php
 222          </a><br>
 223              <a href="../PHPonTrax/_data_config_environments_production_php.html">        production.php
 224          </a><br>
 225              <a href="../PHPonTrax/_vendor_trax_router_php.html">        router.php
 226          </a><br>
 227              <a href="../PHPonTrax/_data_config_routes_php.html">        routes.php
 228          </a><br>
 229              <a href="../PHPonTrax/_vendor_trax_scaffold_controller_php.html">        scaffold_controller.php
 230          </a><br>
 231              <a href="../PHPonTrax/_vendor_trax_session_php.html">        session.php
 232          </a><br>
 233              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_show_phtml.html">        show.phtml
 234          </a><br>
 235              <a href="../PHPonTrax/_data_config_environments_test_php.html">        test.php
 236          </a><br>
 237              <a href="../PHPonTrax/_trax_php.html">        trax.php
 238          </a><br>
 239              <a href="../PHPonTrax/_vendor_trax_trax_exceptions_php.html">        trax_exceptions.php
 240          </a><br>
 241              <a href="../PHPonTrax/_vendor_trax_trax_generator_php.html">        trax_generator.php
 242          </a><br>
 243              <a href="../PHPonTrax/_vendor_trax_action_view_helpers_url_helper_php.html">        url_helper.php
 244          </a><br>
 245              <a href="../PHPonTrax/_vendor_trax_templates_view_phtml.html">        view.phtml
 246          </a><br>
 247              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_view_add_phtml.html">        view_add.phtml
 248          </a><br>
 249              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_view_edit_phtml.html">        view_edit.phtml
 250          </a><br>
 251              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_view_index_phtml.html">        view_index.phtml
 252          </a><br>
 253              <a href="../PHPonTrax/_vendor_trax_templates_scaffolds_generator_templates_view_show_phtml.html">        view_show.phtml
 254          </a><br>
 255        </div><br />
 256        
 257              <b>Classes:</b><br />
 258          <div class="package">
 259                      <a href="../PHPonTrax/.html"></a><br />
 260                  <a href="../PHPonTrax/ActionController.html">ActionController</a><br />
 261                  <a href="../PHPonTrax/ActionControllerError.html">ActionControllerError</a><br />
 262                  <a href="../PHPonTrax/ActionMailer.html">ActionMailer</a><br />
 263                  <a href="../PHPonTrax/ActiveRecord.html">ActiveRecord</a><br />
 264                  <a href="../PHPonTrax/ActiveRecordError.html">ActiveRecordError</a><br />
 265                  <a href="../PHPonTrax/ActiveRecordHelper.html">ActiveRecordHelper</a><br />
 266                  <a href="../PHPonTrax/ApplicationController.html">ApplicationController</a><br />
 267                  <a href="../PHPonTrax/ApplicationMailer.html">ApplicationMailer</a><br />
 268                  <a href="../PHPonTrax/AssetTagHelper.html">AssetTagHelper</a><br />
 269                  <a href="../PHPonTrax/DateHelper.html">DateHelper</a><br />
 270                  <a href="../PHPonTrax/Dispatcher.html">Dispatcher</a><br />
 271                  <a href="../PHPonTrax/FormHelper.html">FormHelper</a><br />
 272                  <a href="../PHPonTrax/FormOptionsHelper.html">FormOptionsHelper</a><br />
 273                  <a href="../PHPonTrax/FormTagHelper.html">FormTagHelper</a><br />
 274                  <a href="../PHPonTrax/Helpers.html">Helpers</a><br />
 275                  <a href="../PHPonTrax/Inflector.html">Inflector</a><br />
 276                  <a href="../PHPonTrax/InputFilter.html">InputFilter</a><br />
 277                  <a href="../PHPonTrax/JavaScriptHelper.html">JavaScriptHelper</a><br />
 278                  <a href="../PHPonTrax/Router.html">Router</a><br />
 279                  <a href="../PHPonTrax/ScaffoldController.html">ScaffoldController</a><br />
 280                  <a href="../PHPonTrax/Session.html">Session</a><br />
 281                  <a href="../PHPonTrax/TraxError.html">TraxError</a><br />
 282                  <a href="../PHPonTrax/TraxGenerator.html">TraxGenerator</a><br />
 283                  <a href="../PHPonTrax/UrlHelper.html">UrlHelper</a><br />
 284        </div>
 285                  </td>
 286      <td>
 287        <table cellpadding="10" cellspacing="0" width="100%" border="0"><tr><td valign="top">
 288  
 289  <table width="100%" border="0" cellpadding="0" cellspacing="0">
 290  <tr>
 291  <td width="10%" align="left" valign="bottom"><a href=
 292  "../PHPonTrax/tutorial_advbuild.pkg.html">Prev</a></td>
 293  <td width="80%" align="center" valign="bottom"></td>
 294  <td width="10%" align="right" valign="bottom"><a href=
 295  "../PHPonTrax/tutorial_troubleshoot.pkg.html">Next</a></td>
 296  </tr>
 297  </table>
 298  <span><a name="troubleshoot.naming"></a><h2 class="title">The Trax Naming Convention</h2><p>Trax uses naming conventions instead of explicit configuration
 299     to link the various parts of a Trax application.  From the name of
 300     a component, Trax can compute the names of related components.
 301     This lets you build an application faster because you need to do
 302     less.</p>
 303    <p>Conversion of names between singular and plural or between
 304     CamelCase and lower_case_underscore forms is done by methods of the
 305     <a href="../PHPonTrax/Inflector.html">Inflector</a> class.</p>
 306  
 307   <a name="naming.naming_model"></a><h3 class="title">Names In the Model</h3><p><strong>Database tables</strong> have names which are
 308     English plural words in lowercase.  Where the name is two or more
 309     words, the words are connected by underscores ('_').
 310     Examples:</p> 
 311     <ul><li><code>orders</code></li>
 312      <li><code>people</code></li>
 313      <li><code>approved_medications</code></li></ul>      
 314    <p>The primary key column of each table is called
 315     <code>id</code>.</p>
 316    <p>There is also a naming convention for foreign keys.  A foreign
 317     key which selects a row in a table by (only) the
 318     <code>id</code> column is the singular lower_case_underscore
 319     name of that table with suffix <code>_id</code>.  For
 320     example, a foreign key to the <code>people</code> 
 321     table's <code>id</code> column would be stored
 322     in a column named <code>person_id</code>.</p>
 323  
 324    <p>Column names containing the string <code>password</code>
 325     are treated specially by <a href="../PHPonTrax/ActiveRecordHelper.html">ActiveRecordHelper</a>.</p>
 326  
 327    <p><strong><a href="../PHPonTrax/ActiveRecord.html">ActiveRecord</a> subclasses</strong> have names
 328     which are English singular words in CamelCase.  Where the name is
 329     two or more words, the first letter of each word is capitalized.
 330     Each table in the database has a one-to-one relationship with a
 331     subclass of ActiveRecord whose name is the CamelCase singular of
 332     the table name.  Examples corresponding to the table names listed
 333     above:</p>
 334     <ul><li><code>Order</code></li>
 335      <li><code>Person</code></li>
 336      <li><code>ApprovedMedication</code></li></ul>      
 337    <p>The subclass is contained in a file in the
 338     <code>app/models</code> area of the Trax work area.  The file
 339     name is the lower_case_underscore form of the subclass name.
 340     Examples corresponding to the subclasses listed above:</p>
 341     <ul><li><code>order.php</code></li>
 342      <li><code>person.php</code></li>
 343      <li><code>approved_medication.php</code></li></ul><hr />
 344  
 345   <a name="naming.naming_controller"></a><h3 class="title">Names In the Controller</h3><p>The Controller is implemented as
 346     <strong><a href="../PHPonTrax/ApplicationController.html">ApplicationController</a> subclasses</strong> that
 347     have descriptive names in CamelCase.  The last
 348     word of a controller name is <code>Controller</code>.  The
 349     word(s) of the controller name before <code>Controller</code>
 350     describe the thing controlled.  For example:</p>
 351     <ul><li><code>StoreController</code></li>
 352      <li><code>CreditAuthorizationController</code></li></ul>      
 353    <p>Each ApplicationController subclass is contained in a file
 354     whose name is the lower_case_underscore form of the subclass name.
 355     This file stored in the <code>app/controllers</code> area of
 356     the Trax work area.  For example, the files containing the
 357     subclasses listed above are:</p> 
 358     <ul><li><code>store_controller.php</code></li>
 359      <li><code>credit_authorization_controller.php</code></li></ul>
 360    <p>Each ApplicationController subclass also has a helper file in
 361     the <code>app/helpers</code> area of the Trax work area with
 362     a file name which is the same as the name of the controller file with 
 363     <code>helper</code> substituted for
 364     <code>controller</code>.  For example, the helper files for
 365      the controllers listed above are:</p>
 366     <ul><li><code>store_helper.php</code></li>
 367      <li><code>credit_authorization_helper.php</code></li></ul><hr />
 368  
 369   <a name="naming.naming_view"></a><h3 class="title">Names In the View</h3><p>There is a view associated with each controller.  The
 370     templates for that view are stored in the
 371     <code>app/views</code> area of the Trax work area in a
 372     directory whose name is the desciptive part of the controller
 373     name.  For example, the view template files for the controllers
 374     listed above are stored in:</p> 
 375     <ul><li><code>app/views/store/</code></li>
 376      <li><code>app/views/credit_authorization/</code></li></ul>
 377  
 378    <p>The layout for each view is stored in the
 379     <code>app/views/layouts</code> area of the Trax work area in
 380     a file whose name is the desciptive part of the controller
 381     name with a <code>.phtml</code> extension.  For example, the
 382     layouts for the controllers listed above are stored in:</p> 
 383     <ul><li><code>app/views/layouts/store.phtml</code></li>
 384      <li><code>app/views/layouts/credit_authorization.phtml</code></li></ul><hr />
 385   <a name="naming.naming_forms"></a><h3 class="title">Fields On Forms</h3><p>Input fields on forms that relate directly to elements of the
 386      model are named according to the ActiveRecord subclass and
 387      attribute represented by the field.  Simple elements are given
 388  <code>id=&quot;</code><span class = "tute-comment">SubClassName_attribute_name</span><code>&quot;</code> and
 389  <code>name=&quot;</code><span class = "tute-comment">SubClassName</span><code>[</code><span class = "tute-comment">attribute_name</span><code>]&quot;</code>.
 390      For example, a field to input the first name of a person which is
 391      attribute <code>fname</code> of subclass
 392      <code>Person</code> would appear as:
 393      <pre class="example">&lt;input id=&quot;Person_fname name=&quot;Person[fname]&quot; type=&quot;text&quot; ... /&gt;</pre>
 394      When the form is POSTed to the server, the value entered into this
 395      field will be in <code>$_REQUEST['Person']['fname']</code></p>
 396  
 397      <p>Certain attributes, such as dates and times, are composites of
 398      individual fields representing year, month, day, hour, minute and
 399      second. Each field is named with the attribute name followed by a
 400      suffix describing which component is represented.  The suffixes
 401      for dates and times are:
 402      <ul><li><code>(1i)</code> Year</li>
 403        <li><code>(2i)</code> Month</li>
 404        <li><code>(3i)</code> Day of the month</li>
 405        <li><code>(4i)</code> Hour</li>
 406        <li><code>(5i)</code> Minute</li>
 407        <li><code>(6i)</code> Second</li></ul>
 408      For example, a group of three pulldown menus which specified 
 409      attribute <code>birthdate</code> of subclass
 410      <code>Person</code> would be named:
 411      <pre class="example">Month:
 412  &lt;select name=&quot;Person[birthdate(2i)]&quot;&gt; ... &lt;/select&gt;
 413  
 414  Day:
 415  &lt;select name=&quot;Person[birthdate(3i)]&quot;&gt; ... &lt;/select&gt;
 416  
 417  Year:
 418  &lt;select name=&quot;Person[birthdate(1i)]&quot;&gt; ... &lt;/select&gt;</pre>
 419      When the form is POSTed to the server, the selected values will
 420      appear in <code>$_REQUEST['Person']['birthdate(2i)']</code>,
 421      <code>$_REQUEST['Person']['birthdate(3i)']</code> and
 422      <code>$_REQUEST['Person']['birthdate(1i)']</code>
 423      respectively.  The value would be stored in the database in a
 424      column of type <code>date</code> and would be
 425      represented according to the SQL standard as
 426      <code>YYYY-MM-DD</code> .</p><hr /></span>
 427  <table width="100%" border="0" cellpadding="0" cellspacing="0">
 428  <tr>
 429  <td width="33%" align="left" valign="top"><a href="../PHPonTrax/tutorial_advbuild.pkg.html">Prev</a></td>
 430  <td width="34%" align="center" valign="top"><a href=
 431  "../PHPonTrax/tutorial_PHPonTrax.pkg.html">Up</a></td>
 432  <td width="33%" align="right" valign="top"><a href=
 433  "../PHPonTrax/tutorial_troubleshoot.pkg.html">Next</a></td>
 434  </tr>
 435  
 436  <tr>
 437  <td width="33%" align="left" valign="top">Advanced Application Build Topics</td>
 438  <td width="34%" align="center" valign="top">PHP On Trax</td>
 439  <td width="33%" align="right" valign="top">Troubleshooting</td>
 440  </tr>
 441  </table>
 442          <div class="credit">
 443              <hr />
 444              Documentation generated on Thu, 04 May 2006 19:46:54 -0600 by <a href="http://www.phpdoc.org">phpDocumentor 1.3.0RC4</a>
 445            </div>
 446        </td></tr></table>
 447      </td>
 448    </tr>
 449  </table>
 450  
 451  </body>
 452  </html>