<?php  //$Id$

// This file keeps track of upgrades to 
// the feedback module
//
// Sometimes, changes between versions involve
// alterations to database structures and other
// major things that may break installations.
//
// The upgrade function in this file will attempt
// to perform all the necessary actions to upgrade
// your older installtion to the current version.
//
// If there's something it cannot do itself, it
// will tell you what you need to do.
//
// The commands in here will all be database-neutral,
// using the functions defined in lib/ddllib.php

function xmldb_feedback_upgrade($oldversion=0) {

    global $CFG, $THEME, $db;

    $result = true;

    if ($result && $oldversion < 2007012310) {

        //create a new table feedback_completedtmp and the field-definition
        $table = new XMLDBTable('feedback_completedtmp');

        $field = new XMLDBField('id');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, true, null, null, null, null);
        $table->addField($field);
        
        $field = new XMLDBField('feedback');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);
        
        $field = new XMLDBField('userid');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);

        $field = new XMLDBField('guestid');
        $field->setAttributes(XMLDB_TYPE_CHAR, '255', null, null, false, null, null, '', null);
        $table->addField($field);

        $field = new XMLDBField('timemodified');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);
        
        $key = new XMLDBKey('PRIMARY');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('id'));
        $table->addKey($key);
        
        $key = new XMLDBKey('feedback');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('feedback'), 'feedback', 'id');
        $table->addKey($key);

        $result = $result && create_table($table);
        ////////////////////////////////////////////////////////////
        ////////////////////////////////////////////////////////////
        //create a new table feedback_valuetmp and the field-definition
        $table = new XMLDBTable('feedback_valuetmp');

        $field = new XMLDBField('id');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, true, null, null, null, null);
        $table->addField($field);
        
        $field = new XMLDBField('course_id');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);
        
        $field = new XMLDBField('item');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);
        
        $field = new XMLDBField('completed');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);
        
        $field = new XMLDBField('tmp_completed');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        $table->addField($field);

        $field = new XMLDBField('value');
        $field->setAttributes(XMLDB_TYPE_TEXT, null, null, null, false, null, null, '', null);
        $table->addField($field);
        
        $key = new XMLDBKey('PRIMARY');
        $key->setAttributes(XMLDB_KEY_PRIMARY, array('id'));
        $table->addKey($key);
        
        $key = new XMLDBKey('feedback');
        $key->setAttributes(XMLDB_KEY_FOREIGN, array('item'), 'feedback_item', 'id');
        $table->addKey($key);

        $result = $result && create_table($table);
        ////////////////////////////////////////////////////////////
    }

    if ($result && $oldversion < 2007050504) {

        /// Define field random_response to be added to feedback_completed
        $table = new XMLDBTable('feedback_completed');
        $field = new XMLDBField('random_response');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        /// Launch add field1
        $result = $result && add_field($table, $field);

        /// Define field anonymous_response to be added to feedback_completed
        $table = new XMLDBTable('feedback_completed');
        $field = new XMLDBField('anonymous_response');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '1', null);
        /// Launch add field2
        $result = $result && add_field($table, $field);

        /// Define field random_response to be added to feedback_completed
        $table = new XMLDBTable('feedback_completedtmp');
        $field = new XMLDBField('random_response');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '0', null);
        /// Launch add field1
        $result = $result && add_field($table, $field);

        /// Define field anonymous_response to be added to feedback_completed
        $table = new XMLDBTable('feedback_completedtmp');
        $field = new XMLDBField('anonymous_response');
        $field->setAttributes(XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, false, null, null, '1', null);
        /// Launch add field2
        $result = $result && add_field($table, $field);

        ////////////////////////////////////////////////////////////
    }

    if ($result && $oldversion < 2007102600) {
        // public is a reserved word on Oracle

        $table = new XMLDBTable('feedback_template');
        $field = new XMLDBField('ispublic');
        if (!field_exists($table, $field)) {
            $result = $result && table_column('feedback_template', 'public', 'ispublic', 'integer', 1);
        }
    }

    if ($result && $oldversion < 2008042400) { //New version in version.php
        if($all_nonanonymous_feedbacks = get_records('feedback', 'anonymous', 2)) {
            $update_sql = 'UPDATE '.$CFG->prefix.'feedback_completed SET anonymous_response = 2 WHERE feedback = ';
            foreach ($all_nonanonymous_feedbacks as $fb) {
                $result = $result && execute_sql($update_sql.$fb->id);
            }
        }
    }

    if ($result && $oldversion < 2008042401) { //New version in version.php
        if($result) {
            $update_sql1 = "UPDATE ".$CFG->prefix."feedback_item SET presentation = CONCAT('r>>>>>',presentation) WHERE typ IN('radio','radiorated')";
            $update_sql2 = "UPDATE ".$CFG->prefix."feedback_item SET presentation = CONCAT('d>>>>>',presentation) WHERE typ IN('dropdown','dropdownrated')";
            $update_sql3 = "UPDATE ".$CFG->prefix."feedback_item SET presentation = CONCAT('c>>>>>',presentation) WHERE typ = 'check'";
            $result = $result && execute_sql($update_sql1);
            $result = $result && execute_sql($update_sql2);
            $result = $result && execute_sql($update_sql3);
        }
        if($result) {
            $update_sql1 = "UPDATE ".$CFG->prefix."feedback_item SET typ = 'multichoice' WHERE typ IN('radio','check','dropdown')";
            $update_sql2 = "UPDATE ".$CFG->prefix."feedback_item SET typ = 'multichoicerated' WHERE typ IN('radiorated','dropdownrated')";
            $result = $result && execute_sql($update_sql1);            
            $result = $result && execute_sql($update_sql2);            
        }
    }

    if ($result && $oldversion < 2008042801) {
        $result = $result && modify_database("","INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('feedback', 'startcomplete', 'feedback', 'name');");
        $result = $result && modify_database("","INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('feedback', 'submit', 'feedback', 'name');");
        $result = $result && modify_database("","INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('feedback', 'delete', 'feedback', 'name');");
        $result = $result && modify_database("","INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('feedback', 'view', 'feedback', 'name');");
        $result = $result && modify_database("","INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('feedback', 'view all', 'course', 'shortname');");
    }

/// And upgrade begins here. For each one, you'll need one 
/// block of code similar to the next one. Please, delete 
/// this comment lines once this file start handling proper
/// upgrade code.

/// if ($result && $oldversion < YYYYMMDD00) { //New version in version.php
///      $result = result of "/lib/ddllib.php" function calls
/// }

    return $result;
}

?>