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infinio

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/home/infinio/public_html/moodle/admin/tool/xmldb/actions/edit_field

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✏️ Editing: edit_field.class.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * @package    tool_xmldb
 * @copyright  2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * This class will provide the interface for all the edit field actions
 *
 * @package    tool_xmldb
 * @copyright  2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class edit_field extends XMLDBAction {

/**
     * Init method, every subclass will have its own
     */
    function init() {
        parent::init();

// Set own custom attributes
        $this->sesskey_protected = false; // This action doesn't need sesskey protection

// Get needed strings
        $this->loadStrings(array(
            'change' => 'tool_xmldb',
            'float2numbernote' => 'tool_xmldb',
            'vieworiginal' => 'tool_xmldb',
            'viewedited' => 'tool_xmldb',
            'yes' => '',
            'no' => '',
            'back' => 'tool_xmldb'
        ));
    }

/**
     * Invoke method, every class will have its own
     * returns true/false on completion, setting both
     * errormsg and output as necessary
     */
    function invoke() {
        parent::invoke();

$result = true;

// Set own core attributes
        $this->does_generate = ACTION_GENERATE_HTML;

// These are always here
        global $CFG, $XMLDB, $OUTPUT;

// Do the job, setting result as needed
        // Get the dir containing the file
        $dirpath = required_param('dir', PARAM_PATH);
        $dirpath = $CFG->dirroot . $dirpath;

// Get the correct dirs
        if (!empty($XMLDB->dbdirs)) {
            $dbdir = $XMLDB->dbdirs[$dirpath];
        } else {
            return false;
        }
        if (!empty($XMLDB->editeddirs)) {
            $editeddir = $XMLDB->editeddirs[$dirpath];
            $structure = $editeddir->xml_file->getStructure();
        }

// Fetch request data
        $tableparam = required_param('table', PARAM_CLEAN);
        if (!$table = $structure->getTable($tableparam)) {
            $this->errormsg = 'Wrong table specified: ' . $tableparam;
            return false;
        }
        $fieldparam = required_param('field', PARAM_CLEAN);
        if (!$field = $table->getField($fieldparam)) {
            // Arriving here from a name change, looking for the new field name
            $fieldparam = required_param('name', PARAM_CLEAN);
            $field = $table->getField($fieldparam);
        }

$dbdir = $XMLDB->dbdirs[$dirpath];
        $origstructure = $dbdir->xml_file->getStructure();

$o = ''; // Output starts

// If field is XMLDB_TYPE_FLOAT, comment about to migrate it to XMLDB_TYPE_NUMBER
        if ($field->getType() == XMLDB_TYPE_FLOAT) {
            $o .= '<p>' . $this->str['float2numbernote'] . '</p>';
        }

// Add the main form
        $o.= '<form id="form" action="index.php" method="post">';
        $o.= '    <div>';
        $o.= '    <input type="hidden" name ="dir" value="' . str_replace($CFG->dirroot, '', $dirpath) . '" />';
        $o.= '    <input type="hidden" name ="table" value="' . $tableparam .'" />';
        $o.= '    <input type="hidden" name ="field" value="' . $fieldparam .'" />';
        $o.= '    <input type="hidden" name ="sesskey" value="' . sesskey() .'" />';
        $o.= '    <input type="hidden" name ="action" value="edit_field_save" />';
        $o.= '    <input type="hidden" name ="postaction" value="edit_table" />';
        $o.= '    <table id="formelements" class="boxaligncenter">';
        // XMLDB field name
        // If the field has dependencies, we cannot change its name
        $disabled = '';
        if ($structure->getFieldUses($table->getName(), $field->getName())) {
            $o.= '      <input type="hidden" name ="name" value="' .  s($field->getName()) .'" />';
            $o.= '      <tr valign="top"><td>Name:</td><td colspan="2">' . s($field->getName()) . '</td></tr>';
        } else {
            $o.= '      <tr valign="top"><td><label for="name" accesskey="n">Name:</label></td><td colspan="2"><input name="name" type="text" size="'.xmldb_field::NAME_MAX_LENGTH.'" maxlength="'.xmldb_field::NAME_MAX_LENGTH.'" id="name" value="' . s($field->getName()) . '" /></td></tr>';
        }
        // XMLDB field comment
        $o .= '      <tr valign="top"><td><label for="comment" accesskey="c">Comment:</label></td><td colspan="2">
                     <textarea name="comment" rows="3" cols="80" id="comment" class="form-control">' .
                     s($field->getComment()) . '</textarea></td></tr>';
        // xmldb_field Type
        $typeoptions = array (XMLDB_TYPE_INTEGER => $field->getXMLDBTypeName(XMLDB_TYPE_INTEGER),
                              XMLDB_TYPE_NUMBER  => $field->getXMLDBTypeName(XMLDB_TYPE_NUMBER),
                              XMLDB_TYPE_FLOAT   => $field->getXMLDBTypeName(XMLDB_TYPE_FLOAT),
                              XMLDB_TYPE_DATETIME=> $field->getXMLDBTypeName(XMLDB_TYPE_DATETIME),
                              XMLDB_TYPE_CHAR    => $field->getXMLDBTypeName(XMLDB_TYPE_CHAR),
                              XMLDB_TYPE_TEXT    => $field->getXMLDBTypeName(XMLDB_TYPE_TEXT),
                              XMLDB_TYPE_BINARY  => $field->getXMLDBTypeName(XMLDB_TYPE_BINARY));
        // If current field isn't float, delete such column type to avoid its creation from the interface
        // Note that float fields are supported completely but it's possible than in a next future
        // we delete them completely from Moodle DB, using, exclusively, number(x,y) types
        if ($field->getType() != XMLDB_TYPE_FLOAT) {
            unset ($typeoptions[XMLDB_TYPE_FLOAT]);
        }
        // Also we hide datetimes. Only edition of them is allowed (and retrofit) but not new creation
        if ($field->getType() != XMLDB_TYPE_DATETIME) {
            unset ($typeoptions[XMLDB_TYPE_DATETIME]);
        }
        $select = html_writer::select($typeoptions, 'type', $field->getType(), false);
        $o.= '      <tr valign="top"><td><label for="menutype" accesskey="t">Type:</label></td>';
        $o.= '        <td colspan="2">' . $select . '</td></tr>';
        // xmldb_field Length
        $o.= '      <tr valign="top"><td><label for="length" accesskey="l">Length:</label></td>';
        $o.= '        <td colspan="2"><input name="length" type="text" size="6" maxlength="6" id="length" value="' . s($field->getLength()) . '" /><span id="lengthtip"></span></td></tr>';
        // xmldb_field Decimals
        $o.= '      <tr valign="top"><td><label for="decimals" accesskey="d">Decimals:</label></td>';
        $o.= '        <td colspan="2"><input name="decimals" type="text" size="6" maxlength="6" id="decimals" value="' . s($field->getDecimals()) . '" /><span id="decimalstip"></span></td></tr>';
        // xmldb_field NotNull
        $notnulloptions = array (0 => 'null', 'not null');
        $select = html_writer::select($notnulloptions, 'notnull', $field->getNotNull(), false);
        $o.= '      <tr valign="top"><td><label for="menunotnull" accesskey="n">Not Null:</label></td>';
        $o.= '        <td colspan="2">' . $select . '</td></tr>';
        // xmldb_field Sequence
        $sequenceoptions = array (0 => $this->str['no'], 1 => 'auto-numbered');
        $select = html_writer::select($sequenceoptions, 'sequence', $field->getSequence(), false);
        $o.= '      <tr valign="top"><td><label for="menusequence" accesskey="s">Sequence:</label></td>';
        $o.= '        <td colspan="2">' . $select . '</td></tr>';
        // xmldb_field Default
        $o.= '      <tr valign="top"><td><label for="default" accesskey="d">Default:</label></td>';
        $o.= '        <td colspan="2"><input type="text" name="default" size="30" maxlength="80" id="default" value="' . s($field->getDefault()) . '" /></td></tr>';
        // Change button
        $o .= '      <tr valign="top"><td>&nbsp;</td><td colspan="2"><input type="submit" value="' . $this->str['change'] .
                     '" class="btn btn-secondary" /></td></tr>';
        $o.= '    </table>';
        $o.= '</div></form>';
        // Calculate the buttons
        $b = ' <p class="centerpara buttons">';
        // The view original XML button
        if ($table->getField($fieldparam)) {
            $b .= '&nbsp;<a href="index.php?action=view_field_xml&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '&amp;select=original&amp;table=' . $tableparam . '&amp;field=' . $fieldparam . '">[' . $this->str['vieworiginal'] . ']</a>';
        } else {
            $b .= '&nbsp;[' . $this->str['vieworiginal'] . ']';
        }
        // The view edited XML button
        if ($field->hasChanged()) {
            $b .= '&nbsp;<a href="index.php?action=view_field_xml&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '&amp;select=edited&amp;table=' . $tableparam . '&amp;field=' . $fieldparam . '">[' . $this->str['viewedited'] . ']</a>';
        } else {
            $b .= '&nbsp;[' . $this->str['viewedited'] . ']';
        }
        // The back to edit table button
        $b .= '&nbsp;<a href="index.php?action=edit_table&amp;table=' . $tableparam . '&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a>';
        $b .= '</p>';
        $o .= $b;

$this->output = $o;

// Launch postaction if exists (leave this here!)
        if ($this->getPostAction() && $result) {
            return $this->launch($this->getPostAction());
        }

// Return ok if arrived here
        return $result;
    }
}

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