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<?php

/*
 * phpMyEdit - instant MySQL table editor and code generator
 *
 * extensions/phpMyEdit-report.class.php - phpMyEdit report extension
 * ____________________________________________________________
 *
 * Developed by Ondrej Jombik <nepto@platon.sk>
 * Copyright (c) 2002-2006 Platon Group, http://platon.sk/
 * All rights reserved.
 *
 * See README file for more information about this software.
 * See COPYING file for license information.
 *
 * Download the latest version from
 * http://platon.sk/projects/phpMyEdit/
 */

/* $Platon: phpMyEdit/extensions/phpMyEdit-report.class.php,v 1.12 2006-01-22 21:44:23 nepto Exp $ */

/* Extension TODO:

   - allow user to enable/disable particular field in reporting (maybe 'X' flag
     for indicating that field is forbidden is good idea)
   - support for ['help'] in select fields screen
   - make extension's option for selecting "Select fields" link or button
 */

require_once dirname(__FILE__).'/../phpMyEdit.class.php';

class phpMyEdit_report extends phpMyEdit
{

        function phpMyEdit_report($opts) /* {{{ */
        {
                $opts['options'] = 'L';
                $execute = 1;
                isset($opts['execute']) && $execute = $opts['execute'];
                $opts['execute'] = 0;
                parent::phpMyEdit($opts);
                $execute && $this->execute();
        } /* }}} */

        function make_language_labels($language) /* {{{ */
        {
                $ret = parent::make_language_labels($language);
                strlen($ret['Make report'])        <= 0 && $ret['Make report']        = 'Make report';
                strlen($ret['Select fields'])      <= 0 && $ret['Select fields']      = 'Select fields';
                strlen($ret['Records per screen']) <= 0 && $ret['Records per screen'] = 'Records per screen';
                return $ret;
        } /* }}} */

        function get_cgi_cookie_var($name, $default_value = null) /* {{{ */
        {
                $ret = $this->get_cgi_var($name, null);
                if ($ret === null) {
                        global $HTTP_COOKIE_VARS;
                        $ret = @$HTTP_COOKIE_VARS[$name.'_'.$this->tb.'_cookie'];
                        if (! isset($ret)) {
                                $ret = $default_value;
                        }
                }
                return $ret;
        } /* }}} */

        function display_list_table_buttons($total_recs, $position) /* {{{ */
        {       /* This is mostly copy/paste from core class. */
                $listall = $this->inc <= 0; // Are we doing a listall?
                echo '<table class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
                echo '<input class="',$this->getCSSclass('fields-select', $position);
                echo '" type="submit" name="fields_select" value="',$this->labels['Select fields'],'">&nbsp;';
                // Note that <input disabled isn't valid HTML, but most browsers support it
                $disabled = ($this->fm > 0 && ! $listall) ? '' : ' disabled';
                echo '<input',$disabled,' class="',$this->getCSSclass('prev', $position);
                echo '" type="submit" name="',ltrim($disabled),'prev" value="',$this->labels['Prev'],'">&nbsp;';
                $disabled = ($this->fm + $this->inc < $total_recs && ! $listall) ? '' : ' disabled';
                echo '<input',$disabled,' class="',$this->getCSSclass('next', $position);
                echo '" type="submit" name="',ltrim($disabled),'next" value="',$this->labels['Next'],'">';
                // Message is now written here
                echo '</td>',"\n";
                if (strlen(@$this->message) > 0) {
                        echo '<td class="',$this->getCSSclass('message', $position),'">',$this->message,'</td>',"\n";
                }
                // Display page and records statistics
                echo '<td class="',$this->getCSSclass('stats', $position),'">',"\n";
                if ($listall) {
                        echo $this->labels['Page'],':&nbsp;1&nbsp;',$this->labels['of'],'&nbsp;1';
                } else {
                        echo $this->labels['Page'],':&nbsp;',($this->fm / $this->inc) + 1;
                        echo '&nbsp;',$this->labels['of'],'&nbsp;',max(1, ceil($total_recs / abs($this->inc)));
                }
                echo '&nbsp; ',$this->labels['Records'],':&nbsp;',$total_recs;
                echo '</td></tr></table>',"\n";
        } /* }}} */

        function display_report_selection_buttons($position) /* {{{ */
        {
                echo '<table class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<tr class="',$this->getCSSclass('navigation', $position),'">',"\n";
                echo '<td class="',$this->getCSSclass('buttons', $position),'">',"\n";
                echo '<input class="',$this->getCSSclass('make-report', $position);
                echo '" type="submit" name="prepare_filter" value="',$this->labels['Make report'],'">',"\n";
                echo '</td></tr></table>',"\n";
        } /* }}} */

        function get_select_fields_link() /* {{{ */
        {
                $link = '<a href="'.htmlspecialchars($this->page_name).'?fields_select=1';
                for ($i = 0; $i < count($table_cols); $i++) {
                        $varname = 'qf'.$i;
                        $value   = $this->get_cgi_cookie_var($varname);
                        if (! empty($value)) {
                                $link .= htmlspecialchars(
                                                '&'.rawurlencode($varname).
                                                '='.rawurlencode($value));
                        }
                }
                $link .= htmlspecialchars($this->cgi['persist']);
                $link .= '">'.$this->labels['Select fields'].'</a>';
                return $link;
        } /* }}} */

        function execute() /* {{{ */
        {
                global $HTTP_GET_VARS;
                global $HTTP_POST_VARS;

                /*
                 * Extracting field names
                 */

                $table_cols     = array();
                $all_table_cols = array();

                if ($this->connect() == false) {
                        return false;
                }
                $query_parts = array(
                                'type'   => 'select',
                                'select' => '*',
                                'from'   => $this->tb,
                                'limit'  => '1');
                $result = $this->myquery($this->get_SQL_query($query_parts), __LINE__);
                $all_table_cols = array_keys(@mysql_fetch_array($result, MYSQL_ASSOC));
                if (count($all_table_cols) <= 0) {
                        $this->error('database fetch error');
                        return false;
                }
                foreach (array_keys($this->fdd) as $field_name) {
                        if (preg_match('/^\d*$/', $field_name))
                                continue;
                        if (($idx = array_search($field_name, $all_table_cols)) !== false)
                                $table_cols[$field_name] = mysql_field_len($result, $idx);
                }
                @mysql_free_result($result);
                unset($all_table_cols);

                /*
                 * Preparing variables
                 */

                $fields_select  = $this->get_cgi_var('fields_select');
                $filter         = $this->get_cgi_var('filter');
                $prepare_filter = $this->get_cgi_var('prepare_filter');
                $this->inc      = intval($this->get_cgi_cookie_var('inc'));
                $force_select   = true;
                $none_displayed = true;
                $expire_time    = time() + (3600 * 24 * 30 * 12 * 5); // five years
                $headers_sent   = @headers_sent();

                foreach (array_merge(array('@inc'), array_keys($table_cols)) as $col) {
                        $varname = ($col[0] == '@' ? substr($col, 1) : 'have_'.$col);
                        if (isset($HTTP_POST_VARS[$varname]) || isset($HTTP_GET_VARS[$varname])) {
                                $value = $HTTP_POST_VARS[$varname];
                                if (isset($HTTP_GET_VARS[$varname])) {
                                        $value = $HTTP_GET_VARS[$varname];
                                }
                                if ($varname != 'inc' && ! empty($value)) {
                                        $force_select = false;
                                }
                                $headers_sent || setcookie($varname.'_'.$this->tb.'_cookie', $value, $expire_time);
                                $this->cgi['persist'] .= '&'.urlencode($varname);
                                $this->cgi['persist'] .= '='.urlencode($value);
                        } else {
                                $headers_sent || setcookie($varname.'_'.$this->tb.'_cookie', '', time() - 10000);
                        }
                }

                $i = -1;
                foreach (array_keys($this->fdd) as $key) {
                        $i++;
                        if (preg_match('/^\d*$/', $key))
                                continue;
                        $varname = 'have_'.$key;
                        $value   = @$this->get_cgi_cookie_var($varname, '');
                        $options = @$value ? 'LV' : '';
                        $this->fdd[$i]['options']   = $options;
                        $this->fdd[$key]['options'] = $options;
                        $this->displayed[$i] = @$value ? true : false;
                        $value && $none_displayed = false;
                }

                /*
                 * Redirecting when neccessary
                 * (hackity hack with unregistering/unchecking fields)
                 */

                if ($prepare_filter && ! $headers_sent) {
                        $this->execute_redirect();
                        exit;
                }

                /*
                 * Check if field selection report screen has to be displayed
                 */

                if (isset($fields_select) || $force_select || $none_displayed) {
                        $this->execute_report_screen($table_cols);
                        return true;
                }

                if (0) {
                        $this->message .= $this->get_select_fields_link();
                }

                // parent class call
                return parent::execute();
        } /* }}} */

        function execute_redirect() /* {{{ */
        {
                global $HTTP_SERVER_VARS;
                global $HTTP_GET_VARS;
                global $HTTP_POST_VARS;
                $redirect_url = 'http://'.$HTTP_SERVER_VARS['HTTP_HOST'].$HTTP_SERVER_VARS['SCRIPT_NAME'];
                $delim = '?';
                foreach ($HTTP_POST_VARS + $HTTP_GET_VARS as $cgi_var_name => $cgi_var_value) {
                        $cgi_var_name == 'prepare_filter' && $cgi_var_name = 'filter';
                        $redirect_url .= $delim;
                        $redirect_url .= rawurlencode($cgi_var_name).'='.rawurlencode($cgi_var_value);
                        $delim == '?' && $delim = '&';
                }
                $redirect_url .= $this->cgi['persist'];
                header('Location: '.$redirect_url);
                exit;
        } /* }}} */

        function execute_report_screen($table_cols) /* {{{ */
        {
                echo '<form class="',$this->getCSSclass('form'),'" action="';
                echo htmlspecialchars($this->page_name),'" method="POST">',"\n";
                if ($this->nav_up()) {
                        $this->display_report_selection_buttons('up');
                        echo '<hr class="',$this->getCSSclass('hr', 'up'),'">',"\n";
                }
                echo '<table class="',$this->getCSSclass('main'),'" summary="',$this->tb,'">',"\n";

                $i = 0;
                foreach ($table_cols as $key => $val) {
                        $css_postfix    = @$this->fdd[$key]['css']['postfix'];
                        $css_class_name = $this->getCSSclass('input', null, true, $css_postfix);
                        $varname        = 'have_'.$key;
                        $value          = $this->get_cgi_cookie_var($varname);
                        $checked        = @$value ? ' checked' : ''; 
                        echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
                        echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'">';
                        echo $this->fdd[$i]['name'],'</td>',"\n";
                        echo '<td class="',$this->getCSSclass('check', null, true, $css_postfix),'">';
                        echo '<input class="',$css_class_name,'" type="checkbox" name="';
                        echo htmlspecialchars($varname),'"',$checked,'>';
                        echo '</td>',"\n";
                        echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'"';
                        echo $this->getColAttributes($key),">\n";
                        $varname = 'qf'.$i;
                        $value   = $this->get_cgi_cookie_var($varname);
                        if ($this->fdd[$key]['select'] == 'D' || $this->fdd[$key]['select'] == 'M') {
                                $from_table = ! $this->col_has_values($key) || isset($this->fdd[$key]['values']['table']);
                                $selected   = $value;
                                $value      = $this->set_values($key, array('*' => '*'), null, $from_table);
                                $multiple   = $this->col_has_multiple_select($key);
                                $multiple  |= $this->fdd[$key]['select'] == 'M';
                                $readonly   = false;
                                $strip_tags = true;
                                $escape     = true;
                                echo $this->htmlSelect($varname.'_id', $css_class_name, $value, $selected,
                                                $multiple, $readonly, $strip_tags, $escape);
                        } else {
                                echo '<input class="',$css_class_name,'" type=text name="';
                                echo htmlspecialchars($varname),'" value="',htmlspecialchars($value),'" size="';
                                echo min(40, $val),'" maxlength="',min(40, max(10, $val)),'">';
                        }
                        echo '</td>',"\n",'</tr>',"\n";
                        $i++;
                }
                echo '<tr class="',$this->getCSSclass('row', null, 'next', $css_postfix),'">',"\n";
                echo '<td class="',$this->getCSSclass('key', null, true, $css_postfix),'" colspan="2">';
                echo $this->labels['Records per screen'],'</td>';
                echo '<td class="',$this->getCSSclass('value', null, true, $css_postfix),'">';
                echo '<input class="',$css_class_name,'" type="text" name="inc" value="',$this->inc.'">';
                echo '</td></tr>',"\n";
                echo '</table>',"\n";
                if ($this->nav_down()) {
                        echo '<hr class="',$this->getCSSclass('hr', 'down'),'">',"\n";
                        $this->display_report_selection_buttons('down');
                }
                echo '</form>';
        } /* }}} */

}

/* Modeline for ViM {{{
 * vim:set ts=4:
 * vim600:fdm=marker fdl=0 fdc=0:
 * }}} */

?>