I have worked on something very common requirement

1) Show or make Delivery Option
So in order to make delivery option Go to Catalog->manage Product->select any product-> go to custom options->click on add new options->select input type date and it results in a date option.
By default the the date option comes in drop down i. selecting the day, month, year through drop down but if you want to select the date through calender then you can do it through admin->configuration->catalog->Date & Time Custom Options -> Use JavaScript Calendar - Yes now the date comes in the calender.

2) Editing javascript Calender validation:- if we want that the customer should not select the date before todays date then we need to do some coding stuff
1) make a file common.js include it in the page.xml and paste this function in it
// http://www.magentocommerce.com/boards/viewthread/35631/# (taken help from here)
//<![CDATA[
var today_date = new Date();
var dd=today_date.getDate();
//alert(dd);
function disabledDate(date, y, m, d) {
//alert(d);
if(dd==d) return false;
if (date <= today_date)
return true;
else
return false;
};
//]]>
Now we have to call this function in the function where this date calender is coming i.e open app/code/core/Mage/Core/Block/Html/Date.php and you can add
electric: false,
dateStatusFunc : disabledDate,
in the calendarSetupObject at line 52 making it look like
$html .=
\’<script type=\"text/javascript\">
//<![CDATA[
var calendarSetupObject = {
inputField : \"\’ . $this->getId() . \’\”,
ifFormat : \"\’ . $displayFormat . \’\”,
showsTime : \"\’ . ($this->getTime() ? \’true\’ : \’false\’) . \’\”,
button : \"\’ . $this->getId() . \’_trig\”,
align : \"Bl\",
electric: false,
dateStatusFunc : disabledDate,
singleClick : true
}\’;
but it is not a good thing to make changes in the core file so need to override it. So lets do that
firstly make a xml file named Mycompany_All.xml at app\\etc\\modules and insert this code
<?xml version=\"1.0\"?>
<config>
<modules>
<Mycompany_Core>
<active>true</active>
<codePool>community</codePool>
</Mycompany_Core>
</modules>
</config>
secondly make another xml file named config.xml at app\\code\\community\\Mycompany\\Core\\etc\\ and insert this code
<?xml version=\"1.0\"?>
<config>
<global>
<blocks>
<core>
<rewrite>
<html_date>Mycompany_Core_Block_Html_Date</html_date>
</rewrite>
</core>
</blocks>
</global>
</config>
now make the file which you want to overite i.e date.php at app\\code\\community\\Mycompany\\Core\\Block\\Html\\ and plave this code
<?php

classMycompany_Core_Block_Html_Date extends Mage_Core_Block_Template
{

protected function _toHtml()
{

$displayFormat = Varien_Date::convertZendToStrFtime($this->getFormat(), true, (bool)$this->getTime());

$html = \’<input type=\"text\" name=\"\’ . $this->getName() . \’\” id=\"\’ . $this->getId() . \’\” \’;
$html .= \’value=\"\’ . $this->escapeHtml($this->getValue()) . \’\” class=\"\’ . $this->getClass() . \’\” \’ . $this->getExtraParams() . \’/> \’;

$html .= \’<img src=\"\’ . $this->getImage() . \’\” alt=\"\’ . $this->helper(\’core\’)->__(\’Select Date\’) . \’\” class=\"v-middle\" \’;
$html .= \’title=\"\’ . $this->helper(\’core\’)->__(\’Select Date\’) . \’\” id=\"\’ . $this->getId() . \’_trig\” />\’;

$html .=
\’<script type=\"text/javascript\">
//<![CDATA[
var calendarSetupObject = {
inputField : \"\’ . $this->getId() . \’\”,
ifFormat : \"\’ . $displayFormat . \’\”,
showsTime : \"\’ . ($this->getTime() ? \’true\’ : \’false\’) . \’\”,
button : \"\’ . $this->getId() . \’_trig\”,
align : \"Bl\",
electric: false,
dateStatusFunc : disabledDate,
singleClick : true
}\’;

$calendarYearsRange = $this->getYearsRange();
if ($calendarYearsRange) {
$html .= \’
calendarSetupObject.range = \’ . $calendarYearsRange . \’
\’;
}

$html .= \’
Calendar.setup(calendarSetupObject);
//]]>
</script>\’;

return $html;
}

public function getEscapedValue($index=null) {

if($this->getFormat() && $this->getValue()) {
return strftime($this->getFormat(), strtotime($this->getValue()));
}

return htmlspecialchars($this->getValue());
}

public function getHtml()
{
return $this->toHtml();
}

}

Now this is how we just overrite the date.php file and insert extra validation on the calender. No need to do any changes in the app\\code\\core\\Mage\\Core\\Block\\Html\\date.php file.

Now in front you will see that the calender appears with the dates disabled which are less then today.

So this way we can show the delivery date option with date validation.

Now I wish to make a shipping module which calculates shipping rate if and only if the delivery dates are different for the product.

Any one any Idea??

You can also see the hehp for extension at http://www.magentocommerce.com/boards/viewthread/73042/

1) extension ket magento-community/Mage_Navadmin doesnot work
try this http://connect20.magentocommerce.com/community/Mage_Navadmin
2) function getChildHtml not found
Solution :- This is because as mentioned in the description of the extension
Edit: /app/design/frontend/default/THEME/template/page/html/header.phtml
<div class="nav"> <ul id="nav"> <?php echo getChildHtml('topNavadmin') ?> </ul> </div>

Now just have a look at the code, we need to replace the <?php echo getChildHtml('topNavadmin') ?> with <?php echo $this->getChildHtml('topNavadmin') ?> I have added only $this ->obhect to call the function

We can manage the menu items i.e if we a=want to show the menu item under top menu or under footer menu this can be managed by adding few codes :-
For Admin
1) app\code\community\Mage\Navadmin\Block\Adminhtml\Navadmin\Edit\Tab\Form.php
add this code belowposition near about line 53 in order to show where we want to show the menu

$fieldset->addField(’viewinmenu’, ‘select’, array(
‘label’ => Mage::helper(’navadmin’)->__(’View in Menu’),
‘name’ => ‘viewinmenu’,
‘values’ => array(
array(
‘value’ => 1,
‘label’ => Mage::helper(’navadmin’)->__(’Top’),
),

array(
‘value’ => 2,
‘label’ => Mage::helper(’navadmin’)->__(’Footer’),
),

array(
‘value’ => 3,
‘label’ => Mage::helper(’navadmin’)->__(’Left’),
),

array(
‘value’ => 4,
‘label’ => Mage::helper(’navadmin’)->__(’Right’),
),
),
));

2) In database in table “navadmin” add a new field “viewinmenu” of int type

3) app\code\community\Mage\Navadmin\Block\Adminhtml\Navadmin\Grid.php
at line 21 in protected function _prepareColumns add this code near about line 43
$this->addColumn(’viewinmenu’, array(
‘header’ => Mage::helper(’navadmin’)->__(’View in Menu’),
‘align’ => ‘left’,
‘width’ => ‘80px’,
‘index’ => ‘viewinmenu’,
‘type’ => ‘options’,
‘options’ => array(
1 => ‘Top’,
2 => ‘Footer’,
3 => ‘Left’,
4 => ‘Right’,
),
));

Now with these above code we are able to save the menu at its desired position.

For Front

In order to show the menu item for top or bottom we need to edit the function which is called i.e echo $this->helper(’navadmin/data’)->drawItem($aux); or else what we can do is make another function and call it i.e

For top menu items echo $this->helper(’navadmin/data’)->drawItemTop($aux);
For bottom/footer menu items echo $this->helper(’navadmin/data’)->drawItemBottom($aux);

as we have called them we need to make them copy public function drawItem($store_id=1, $pid=0, $level=0) and make 2 new functions
public function drawItemTop($store_id=1, $pid=0, $level=0)
public function drawItemBottom($store_id=1, $pid=0, $level=0)

same as the function drawItem only what we have to edit is call $items = $this->getChildrensTop($store_id, $pid);, $items = $this->getChildrensBottom($store_id, $pid); instead of $items = $this->getChildrens($store_id, $pid);

and make 2 new functions

public function getChildrens($store_id=1, $pid=0){
$out = array();
$collection = Mage::getModel(’navadmin/navadmin’)->getCollection()
->addFieldToFilter(’pid’, array(’in’=>$pid) )
->addFieldToFilter(’store_id’, array(’in’=>$store_id) )
->addFieldToFilter(’status’, array(’in’=>’1’) )
->setOrder(’position’, ‘asc’);
foreach ($collection as $item){
$out[] = $item->getData();
}
return $out;
}

public function getChildrensTop($store_id=1, $pid=0){
$out = array();
$collection = Mage::getModel(’navadmin/navadmin’)->getCollection()
->addFieldToFilter(’pid’, array(’in’=>$pid) )
->addFieldToFilter(’store_id’, array(’in’=>$store_id) )
->addFieldToFilter(’status’, array(’in’=>’1’) )
->addFieldToFilter(’viewinmenu’, array(’in’=>’1’) )
->setOrder(’position’, ‘asc’);
foreach ($collection as $item){
$out[] = $item->getData();
}
return $out;
}

here I have set the filter for the top and bottom menu.

Hope the above mentioned trick solves the issue of dividing the menu items at top or footer or bottom positions

can find the files attachements
1) app\code\community\Mage\Navadmin\Block\Adminhtml\Navadmin\Edit\Tab\Form.php
2) app\code\community\Mage\Navadmin\Block\Adminhtml\Navadmin\Grid.php
3)app\code\community\Mage\Navadmin\Helper\Data.php

remember one thing the function drawItem() is called at app\design\frontend\default\default\template\navadmin\top.phtml
you can place this file at your own template app\design\frontend\default\theme\template\navadmin\top.phtml

for active menu code to work you can take help at http://codefight.org/blog/92/52/How-to-get-current-PageURL-in-Magento-E-commerce

I was wondering some code from magento in order to send feeds on Get price and myshopping. Its infact very easy.

For myshopping I have generated a single file named getfeeds.php which covers every data to be feeded as per the requirement but to send the data for Get Price we need 2 files one for the category i.e getcategoryfeed.php and another for product i.e getproductfeed.php.

Please see the file attached

In order include the default pathe of Mage.php you need to paste these files in any folder suppose folder named feed and then access them or else if you place them in root thenyou need to change the pathe of mage file i.e instead of
require_once ‘../app/Mage.php’;
write
require_once ‘app/Mage.php’;

2) index.php is included in baseurl
just edit yourweb/unsecure/base_url, web/secure/base_url from table core_config_data i.e remove index.php from the url and also dont forget to reset the permissions of var , media folder to 777

3) Magento not working in I.E.9
Go to app\design\frontend\default\YourTheme\template\page\html\head.phtml add
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />

Find echo $this->getDateHtml() in \app\design\frontend\default\default\template\catalog\product\view\options\type\date.phtml.

and replace it with echo $this->getCalendarDateHtml()

you can see a calender shown instead of drop down.

If insted you want to show another calender of just refer this http://www.magentocommerce.com/boards/viewthread/30730/

block type="core/html_calendar" name="html_calendar" as="html_calendar" template="page/js/calendar.phtml"/>

and on the phtml page where you want to show the calender just paste this code
<?php //echo $this->getChildHtml('html_calendar') ?>
<input name="ord_date" id="ord_date" value="” type="text" style="width:110px !important;” class="required-entry input-text validate-email” /> <img src="<?php echo $this->getSkinUrl('images/grid-cal.gif'); ?>” alt="” id="_accountdob_trig" title="Select Date” style="” />
<script type="text/javascript">
//<![CDATA[
Calendar.setup({
inputField: “ord_date”,
ifFormat: “%m/%e/%y”,
showsTime: false,
button: “_accountdob_trig”,
align: “Bl”,
singleClick : true
});
//]]>
</script>

or you can refer

http://codefight.org/blog/92/52/How-to-get-current-PageURL-in-Magento-E-commerce

for more details

By following the example by anjandoshi in the forum
http://www.magentocommerce.com/boards/viewthread/2556/
I edited the file \app\code\community\Mage\Navadmin\etc\config.xml to this;