How to print an image field on all the basic pages only?

Question

In my custom type "Page" I've added an image field (field_page_cover_image) and applied image style to it.

<?php
  $field = field_get_items('node', $node, 'field_page_cover_image');
  if($field){
     $theme_img = file_create_url($node->field_page_cover_image[$node->language][0]['uri']); //origional image path
     if(isset($theme_img)) {
        // print styled image
        print theme('image_style', array('path' => $node->field_page_cover_image[$node->language][0]['uri'], 'style_name' => 'page_theme'));
    }
  }  
?>

I have a requirement show this image (if uploaded) in all basic pages only (in a separate div container). For this I added the above code in `page.tpl.php

This code is working fine in all the pages but when I load search or other pages, I am getting error, as they don't have this field ($field).

Answer 1

Solution 1 : use node.tpl.php

You should use a template for your specific content type "Page" instead of using page.tpl.php.

So try to copy paste the node.tpl.php, put your code in it, rename it node--page.tpl.php and upload it inside your theme folder. Then it should only apply to content type "Page", and not all pages.

Solution 2 : check that you're on a content type "Page" in page.tpl.php

If you need to put your code inside page.tpl.php, then you can check if you're viewing a content type "Page" this way:

$nid = arg(1);
$path = arg(0);
if(isset($nid) && is_numeric($nid) && isset($path) && $path == 'node') {
    $node = node_load($nid);
    if(isset($node) && $node->type == 'page') {
        // PUT YOUR CODE HERE
        ...
     }
}

Answer 2

I suggest you to use template_preprocess_page and save your image to a variable. You can refer the below code.

function mytheme_preprocess_page(&$vars) {
     $node = $vars['node'];
     $field = field_get_items('node', $node, 'field_page_cover_image');
      if($field){
         $theme_img = file_create_url($node->field_page_cover_image[$node->language][0]['uri']); //origional image path
         if(isset($theme_img)) {
            //print styled image
            $imagevariable = theme('image_style', array('path' => $node->field_page_cover_image[$node->language][0]['uri'], 'style_name' => 'page_theme'));
           $vars['myImage'] = $imagevariable;
        }
      }  
}

You can use $myImage variable to print the image in the tpl file :)