class.ilNumberInputGUI.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2008 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program 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 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program 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 this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

class ilNumberInputGUI extends ilSubEnabledFormPropertyGUI
{
        protected $value;
        protected $maxlength = 200;
        protected $size = 40;
        protected $suffix;
        protected $minvalue = false;
        protected $minvalueShouldBeGreater = false;
        protected $maxvalue = false;
        protected $maxvalueShouldBeLess = false;
        
        function __construct($a_title = "", $a_postvar = "")
        {
                parent::__construct($a_title, $a_postvar);
        }

        function setSuffix($a_value)
        {
                $this->suffix = $a_value;
        }

        function getSuffix()
        {
                return $this->suffix;
        }

        function setValue($a_value)
        {
                $this->value = str_replace(',', '.', $a_value);
        }

        function getValue()
        {
                return $this->value;
        }

        function setMaxLength($a_maxlength)
        {
                $this->maxlength = $a_maxlength;
        }

        function getMaxLength()
        {
                return $this->maxlength;
        }

        function setMinvalueShouldBeGreater($a_bool)
        {
                $this->minvalueShouldBeGreater = $a_bool;
        }
        
        function minvalueShouldBeGreater()
        {
                return $this->minvalueShouldBeGreater;
        }

        function setMaxvalueShouldBeLess($a_bool)
        {
                $this->maxvalueShouldBeLess = $a_bool;
        }
        
        function maxvalueShouldBeLess()
        {
                return $this->maxvalueShouldBeLess;
        }
        
        function setSize($a_size)
        {
                $this->size = $a_size;
        }

        function setValueByArray($a_values)
        {
                $this->setValue($a_values[$this->getPostVar()]);
        }

        function getSize()
        {
                return $this->size;
        }
        
        function setMinValue($a_minvalue)
        {
                $this->minvalue = $a_minvalue;
        }

        function getMinValue()
        {
                return $this->minvalue;
        }

        function setMaxValue($a_maxvalue)
        {
                $this->maxvalue = $a_maxvalue;
        }

        function getMaxValue()
        {
                return $this->maxvalue;
        }

        function setDecimals($a_decimals)
        {
                $this->decimals = $a_decimals;
        }

        function getDecimals()
        {
                return $this->decimals;
        }

        function checkInput()
        {
                global $lng;
                
                $_POST[$this->getPostVar()] = ilUtil::stripSlashes($_POST[$this->getPostVar()]);
                if ($this->getRequired() && trim($_POST[$this->getPostVar()]) == "")
                {
                        $this->setAlert($lng->txt("msg_input_is_required"));

                        return false;
                }
                
                if (trim($_POST[$this->getPostVar()]) != "" &&
                        ! is_numeric(str_replace(',', '.', $_POST[$this->getPostVar()])))
                {
                        $this->setAlert($lng->txt("form_msg_numeric_value_required"));

                        return false;
                }

                if ($this->minvalueShouldBeGreater())
                {
                        if (trim($_POST[$this->getPostVar()]) != "" &&
                                $this->getMinValue() !== false &&
                                $_POST[$this->getPostVar()] <= $this->getMinValue())
                        {
                                $this->setAlert($lng->txt("form_msg_value_too_low"));

                                return false;
                        }
                }
                else
                {
                        if (trim($_POST[$this->getPostVar()]) != "" &&
                                $this->getMinValue() !== false &&
                                $_POST[$this->getPostVar()] < $this->getMinValue())
                        {
                                $this->setAlert($lng->txt("form_msg_value_too_low"));

                                return false;
                        }
                }

                if ($this->maxvalueShouldBeLess())
                {
                        if (trim($_POST[$this->getPostVar()]) != "" &&
                                $this->getMaxValue() !== false &&
                                $_POST[$this->getPostVar()] >= $this->getMaxValue())
                        {
                                $this->setAlert($lng->txt("form_msg_value_too_high"));

                                return false;
                        }
                }
                else
                {
                        if (trim($_POST[$this->getPostVar()]) != "" &&
                                $this->getMaxValue() !== false &&
                                $_POST[$this->getPostVar()] > $this->getMaxValue())
                        {
                                $this->setAlert($lng->txt("form_msg_value_too_high"));

                                return false;
                        }
                }
                
                return $this->checkSubItemsInput();
        }

        function insert(&$a_tpl)
        {
                global $lng;
                
                if (strlen($this->getValue()))
                {
                        $a_tpl->setCurrentBlock("prop_number_propval");
                        $a_tpl->setVariable("PROPERTY_VALUE", ilUtil::prepareFormOutput($this->getValue()));
                        $a_tpl->parseCurrentBlock();
                }
                $a_tpl->setCurrentBlock("prop_number");
                
                $a_tpl->setVariable("POST_VAR", $this->getPostVar());
                $a_tpl->setVariable("ID", $this->getFieldId());
                $a_tpl->setVariable("SIZE", $this->getSize());
                $a_tpl->setVariable("MAXLENGTH", $this->getMaxLength());
                if (strlen($this->getSuffix())) $a_tpl->setVariable("INPUT_SUFFIX", $this->getSuffix());
                if ($this->getDisabled())
                {
                        $a_tpl->setVariable("DISABLED",
                                " disabled=\"disabled\"");
                }
                
                // constraints
                if ($this->getDecimals() > 0)
                {
                        $constraints = $lng->txt("form_format").": ###.".str_repeat("#", $this->getDecimals());
                        $delim = ", ";
                }
                if ($this->getMinValue() !== false)
                {
                        $constraints.= $delim.$lng->txt("form_min_value").": ".(($this->minvalueShouldBeGreater()) ? "&gt; " : "").$this->getMinValue();
                        $delim = ", ";
                }
                if ($this->getMaxValue() !== false)
                {
                        $constraints.= $delim.$lng->txt("form_max_value").": ".(($this->maxvalueShouldBeLess()) ? "&lt; " : "").$this->getMaxValue();
                        $delim = ", ";
                }
                if ($constraints != "")
                {
                        $a_tpl->setVariable("TXT_NUMBER_CONSTRAINTS", $constraints);
                }
                
                $a_tpl->parseCurrentBlock();
        }
}