<?php  // $Id: editcategories.php,v 1.23.2.1 2006/08/10 15:30:49 skodak Exp $

/// This page allows to edit entries categories for a particular instance of glossary

    require_once("../../config.php");
    require_once("lib.php");

    $id = required_param('id', PARAM_INT);                       // Course Module ID, or
    $usedynalink = optional_param('usedynalink', 0, PARAM_INT);  // category ID
    $confirm     = optional_param('confirm', 0, PARAM_INT);      // confirm the action
    $name        = optional_param('name', '', PARAM_CLEAN);  // confirm the name

    $action = optional_param('action', '', PARAM_ALPHA ); // what to do
    $hook   = optional_param('hook', '', PARAM_ALPHANUM); // category ID
    $mode   = optional_param('mode', '', PARAM_ALPHA);   // cat

    $action = strtolower($action);

    if (! $cm = get_coursemodule_from_id('glossary', $id)) {
        error("Course Module ID was incorrect");
    }

    if (! $course = get_record("course", "id", $cm->course)) {
        error("Course is misconfigured");
    }

    if (! $glossary = get_record("glossary", "id", $cm->instance)) {
        error("Course module is incorrect");
    }

    if ($hook > 0) {
        if ($category = get_record("glossary_categories","id",$hook)) {
            //Check it belongs to the same glossary
            if ($category->glossaryid != $glossary->id) {
                error("Glossary is incorrect");
            }
        } else {
            error("Category is incorrect");
        }
    }

    require_login($course->id, false);

    if ( !isteacher($course->id) ) {
        error("You must be a teacher to use this page.");
    }

    $strglossaries   = get_string("modulenameplural", "glossary");
    $strglossary     = get_string("modulename", "glossary");

    print_header_simple(format_string($glossary->name), "",
                        "<a href=\"index.php?id=$course->id\">$strglossaries</a> -> <a href=\"view.php?id=$cm->id&amp;tab=GLOSSARY_CATEGORY_VIEW\">".format_string($glossary->name,true)."</a> -> " . get_string("categories","glossary"),
                        "", "", true, update_module_button($cm->id, $course->id, $strglossary),
                        navmenu($course, $cm));

    if ( $hook >0 ) {

        if ( $action == "edit" ) {
            if ( $confirm ) {
                $action = "";
                $cat->id = $hook;
                $cat->name = $name;
                $cat->usedynalink = $usedynalink;

                if ( !update_record("glossary_categories", $cat) ) {
                    error("Weird error. The category was not updated.");
                    redirect("editcategories.php?id=$cm->id");
                } else {
                    add_to_log($course->id, "glossary", "edit category", "editcategories.php?id=$cm->id", $hook,$cm->id);
                }
            } else {
                echo "<p align=\"center\">" . get_string("edit"). " " . get_string("category","glossary") . "<font size=\"3\">";

                $name = $category->name;
                $usedynalink = $category->usedynalink;
                require "editcategories.html";
                print_footer();
                die;
            }

        } elseif ( $action == "delete" ) {
            if ( $confirm ) {
                delete_records("glossary_entries_categories","categoryid", $hook);
                delete_records("glossary_categories","id", $hook);

                print_simple_box_start("center","40%", "#FFBBBB");
                echo "<center>" . get_string("categorydeleted","glossary") ."</center>";
                echo "</center>";
                print_simple_box_end();
                print_footer($course);

                add_to_log($course->id, "glossary", "delete category", "editcategories.php?id=$cm->id", $hook,$cm->id);

                redirect("editcategories.php?id=$cm->id");
            } else {
                echo "<p align=\"center\">" . get_string("delete"). " " . get_string("category","glossary") . "<font size=\"3\">";

                print_simple_box_start("center","40%", "#FFBBBB");
                echo "<center><b>".format_text($category->name)."</b><br>";

                $num_entries = count_records("glossary_entries_categories","categoryid",$category->id);
                if ( $num_entries ) {
                    print_string("deletingnoneemptycategory","glossary");
                }
                echo "<p>";
                print_string("areyousuredelete","glossary");
?>
                <form name="form" method="post" action="editcategories.php">

                <input type="hidden" name="id"          value="<?php p($cm->id) ?>" />
                <input type="hidden" name="action"      value="delete" />
                <input type="hidden" name="confirm"     value="1" />
                <input type="hidden" name="mode"         value="<?php echo $mode ?>" />
                <input type="hidden" name="hook"         value="<?php echo $hook ?>" />
                <table border="0" width="100"><tr><td align="right" width="50%" />
                <input type="submit" value=" <?php print_string("yes")?> " />
                </form>
                </td><td align="left" width="50%">

<?php
                unset($options);
                $options = array ("id" => $id);
                print_single_button("editcategories.php", $options, get_string("no") );
                echo "</td></tr></table>";
                echo "</center>";
                print_simple_box_end();
            }
        }

    } elseif ( $action == "add" ) {
        if ( $confirm ) {
            $lcase = db_lowercase();
            $dupcategory = get_record("glossary_categories","$lcase(name)",strtolower($name),"glossaryid",$glossary->id);
            if ( $dupcategory ) {
                echo "<p align=\"center\">" . get_string("add"). " " . get_string("category","glossary") . "<font size=\"3\">";

                print_simple_box_start("center","40%", "#FFBBBB");
                echo "<center>" . get_string("duplicatedcategory","glossary") ."</center>";
                echo "</center>";
                print_simple_box_end();

                print_footer($course);

                redirect("editcategories.php?id=$cm->id&amp;action=add&&amp;name=$name");

            } else {
                $action = "";
                $cat->name = $name;
                $cat->usedynalink = $usedynalink;
                $cat->glossaryid = $glossary->id;

                if ( ! $cat->id = insert_record("glossary_categories", $cat) ) {
                    error("Weird error. The category was not inserted.");

                    redirect("editcategories.php?id=$cm->id");
                } else {
                    add_to_log($course->id, "glossary", "add category", "editcategories.php?id=$cm->id", $cat->id,$cm->id);
                }
            }
        } else {
            echo "<p align=\"center\">" . get_string("add"). " " . get_string("category","glossary") . "<font size=\"3\">";
            $name="";
            require "editcategories.html";
        }
    }

    if ( $action ) {
        print_footer();
        die;
    }

?>


<div align="center">

<form name="theform" method="post" action="editcategories.php">
<table width="40%" class="generalbox" cellpadding="5">
        <tr>
          <td width="90%" align="center"><b>
          <?php p(get_string("categories","glossary")) ?></b></td>
          <td width="10%" align="center"><b>
          <?php p(get_string("action")) ?></b></td>
        </tr>
        <tr><td width="100%" colspan="2">

        <table width="100%">

<?php
    $categories = get_records("glossary_categories","glossaryid",$glossary->id,"name ASC");

    if ( $categories ) {
        foreach ($categories as $category) {
            $num_entries = count_records("glossary_entries_categories","categoryid",$category->id);
?>

             <tr>
               <td width="90%" align="left">
               <?php
                    echo "<b>".format_text($category->name)."</b> <font size=-1>($num_entries " . get_string("entries","glossary") . ")</font>";
               ?>
               </td>
               <td width="10%" align="center"><b>
               <?php
                echo "<a href=\"editcategories.php?id=$cm->id&amp;action=delete&amp;mode=cat&amp;hook=$category->id\"><img  alt=\"" . get_string("delete") . "\"src=\"../../pix/t/delete.gif\" height=\"11\" width=\"11\" border=\"0\" /></a> ";
                echo "<a href=\"editcategories.php?id=$cm->id&amp;action=edit&amp;mode=cat&amp;hook=$category->id\"><img  alt=\"" . get_string("edit") . "\" src=\"../../pix/t/edit.gif\" height=\"11\" width=\"11\" border=\"0\" /></a>";
               ?>
               </b></td>
             </tr>

             <?php
          }
     }
?>
        </table>

        </td>
        <tr>
        <td width="100%" colspan="2"  align="center">
            <?php

             $options['id'] = $cm->id;
             $options['action'] = "add";

             echo "<table border=\"0\"><tr><td align=\"right\">";
             echo print_single_button("editcategories.php", $options, get_string("add") . " " . get_string("category","glossary"), "get");
             echo "</td><td align=\"left\">";
             unset($options['action']);
             $options['mode'] = 'cat';
             $options['hook'] = $hook;
             echo print_single_button("view.php", $options, get_string("back","glossary") );
             echo "</td></tr>";
             echo "</tablee>";

            ?>
        </td>
        </tr>
        </table>

</table>
</p>


</form>

<?php print_footer() ?>
