tbl_relation.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Display table relations for viewing and editing
   5  *
   6  * includes phpMyAdmin relations and InnoDB relations
   7  *
   8  * @todo fix name handling: currently names with dots (.) are not properly handled
   9  * for internal relations (but foreign keys relations are correct)
  10  * @todo foreign key constraints require both fields being of equal type and size
  11  * @todo check foreign fields to be from same type and size, all other makes no sense
  12  * @todo if above todos are fullfilled we can add all fields meet requirements
  13  * in the select dropdown
  14  * @package PhpMyAdmin
  15  */
  16
  17 /**
  18  * Gets some core libraries
  19  */
  20 require_once 'libraries/common.inc.php';
  21 require_once 'libraries/index.lib.php';
  22 require_once 'libraries/tbl_relation.lib.php';
  23 require_once 'libraries/structure.lib.php';
  24
  25 $response = PMA_Response::getInstance();
  26
  27 // Send table of column names to populate corresponding dropdowns depending
  28 // on the current selection
  29 if (isset($_REQUEST['getDropdownValues'])
  30     && $_REQUEST['getDropdownValues'] === 'true'
  31 ) {
  32     PMA_sendHtmlForTableOrColumnDropdownList();
  33 }
  34
  35 $header   = $response->getHeader();
  36 $scripts  = $header->getScripts();
  37 $scripts->addFile('tbl_relation.js');
  38 $scripts->addFile('indexes.js');
  39
  40 /**
  41  * Gets tables informations
  42  */
  43 require_once 'libraries/tbl_info.inc.php';
  44
  45 $options_array = array(
  46     'CASCADE'   => 'CASCADE',
  47     'SET_NULL'  => 'SET NULL',
  48     'NO_ACTION' => 'NO ACTION',
  49     'RESTRICT'  => 'RESTRICT',
  50 );
  51
  52 /**
  53  * Gets the relation settings
  54  */
  55 $cfgRelation = PMA_getRelationsParam();
  56
  57 /**
  58  * Updates
  59  */
  60 if ($cfgRelation['relwork']) {
  61     $existrel = PMA_getForeigners($db, $table, '', 'internal');
  62 }
  63 if (PMA_Util::isForeignKeySupported($tbl_storage_engine)) {
  64     $existrel_foreign = PMA_getForeigners($db, $table, '', 'foreign');
  65 }
  66 if ($cfgRelation['displaywork']) {
  67     $disp     = PMA_getDisplayField($db, $table);
  68 } else {
  69     $disp = '';
  70 }
  71
  72 // will be used in the logic for internal relations and foreign keys:
  73 $multi_edit_columns_name = isset($_REQUEST['fields_name'])
  74     ? $_REQUEST['fields_name']
  75     : null;
  76
  77
  78 $html_output = '';
  79
  80 // u p d a t e s   f o r   I n t e r n a l    r e l a t i o n s
  81 if (isset($_POST['destination_db']) && $cfgRelation['relwork']) {
  82     $html_output .= PMA_handleUpdatesForInternalRelations(
  83         $_POST['destination_db'], $multi_edit_columns_name,
  84         $_POST['destination_table'],
  85         $_POST['destination_column'], $cfgRelation, $db, $table,
  86         isset($existrel) ? $existrel : null
  87     );
  88 } // end if (updates for internal relations)
  89
  90 $multi_edit_columns_name = isset($_REQUEST['foreign_key_fields_name'])
  91     ? $_REQUEST['foreign_key_fields_name']
  92     : null;
  93
  94 // u p d a t e s    f o r    f o r e i g n    k e y s
  95 // (for now, one index name only; we keep the definitions if the
  96 // foreign db is not the same)
  97 if (isset($_POST['destination_foreign_db'])) {
  98     $html_output .= PMA_handleUpdatesForForeignKeys(
  99         $_POST['destination_foreign_db'],
 100         $multi_edit_columns_name, $_POST['destination_foreign_table'],
 101         $_POST['destination_foreign_column'], $options_array, $table,
 102         isset($existrel_foreign) ? $existrel_foreign['foreign_keys_data'] : null
 103     );
 104 } // end if isset($destination_foreign)
 105
 106 // U p d a t e s   f o r   d i s p l a y   f i e l d
 107 if ($cfgRelation['displaywork'] && isset($_POST['display_field'])) {
 108     $html_output .= PMA_handleUpdateForDisplayField(
 109         $disp, $_POST['display_field'], $db, $table, $cfgRelation
 110     );
 111 } // end if
 112
 113 // If we did an update, refresh our data
 114 if (isset($_POST['destination_db']) && $cfgRelation['relwork']) {
 115     $existrel = PMA_getForeigners($db, $table, '', 'internal');
 116 }
 117 if (isset($_POST['destination_foreign_db'])
 118     && PMA_Util::isForeignKeySupported($tbl_storage_engine)
 119 ) {
 120     $existrel_foreign = PMA_getForeigners($db, $table, '', 'foreign');
 121 }
 122
 123 if ($cfgRelation['displaywork']) {
 124     $disp     = PMA_getDisplayField($db, $table);
 125 }
 126
 127
 128 // display secondary level tabs if necessary
 129 $engine = PMA_Table::sGetStatusInfo($db, $table, 'ENGINE');
 130 $response->addHTML(PMA_getStructureSecondaryTabs($engine));
 131 $response->addHTML('<div id="structure_content">');
 132
 133 /**
 134  * Dialog
 135  */
 136 // Now find out the columns of our $table
 137 // need to use PMA_DatabaseInterface::QUERY_STORE with $GLOBALS['dbi']->numRows()
 138 // in mysqli
 139 $columns = $GLOBALS['dbi']->getColumns($db, $table);
 140
 141 // common form
 142 $html_output .= PMA_getHtmlForCommonForm(
 143     $db, $table, $columns, $cfgRelation, $tbl_storage_engine,
 144     isset($existrel) ? $existrel : array(),
 145     isset($existrel_foreign) ? $existrel_foreign['foreign_keys_data'] : array(),
 146     $options_array
 147 );
 148
 149 if (PMA_Util::isForeignKeySupported($tbl_storage_engine)) {
 150     $html_output .= PMA_getHtmlForDisplayIndexes();
 151 }
 152 // Render HTML output
 153 $response->addHTML($html_output);
 154
 155 $response->addHTML('</div>');