Add Extra Product Fields using an observer

[torvista]

I did a bit of code to add extra columns (mpn, ean, google_product_category) to the product table and also add the corresponding input fields for those columns in the admin product edit page.
It uses an observer so no core file modification required.

https://github.com/torvista/Zen_Cart...Product_Fields

Tested on157/158 but any comments welcome. Report bugs in GitHub please.

(If people are new to GitHub and it's use, I suggest using GitKraken and watching their video tutorials)

[swguy]

Thanks for doing this. Will add to the documentation.

[noppie]

thank you so much for this.. i was wondering why i can not see the info on my product page in the front end in my catalog, thank you

[swguy]

You have to modify your storefront files to display as desired. This is only the admin framework for adding and updating these custom values.

Start with includes/templates/YOUR_TEMPLATE/templates/tpl_product_info_display.php

[swguy]

https://docs.zen-cart.com/dev/code/d...custom_fields/

[noppie]

ok i understand where to put the code but not sure what to put. added to the class observer file.

$this->extra_product_fields[] = ['name' => 'condition', 'varchar' => 20];

AND this is from the language file

define('PLUGIN_EXTRA_PRODUCT_FIELDS_LABEL_CONDITION', 'CONDITION');
define('PLUGIN_EXTRA_PRODUCT_FIELDS_PLACEHOLDER_CONDITION', 'What is the condtion (New)20 characters');

i. i want to condition to show up in the front end.

and this is from Modify includes/modules/pages/product_info/main_template_vars.php to retrieve the field and create a variable to store it.

$products_url = $product_info->fields['products_url'];
$products_date_available = $product_info->fields['products_date_available'];
$products_date_added = $product_info->fields['products_date_added'];
$products_manufacturer = $manufacturers_name;
$products_weight = $product_info->fields['products_weight'];
$products_quantity = $product_info->fields['products_quantity'];
$product_condition = $procduct_info->fields['products_condition']; <-------------This is what i added

in this Modify includes/templates/YOURTEMPLATE/templates/tpl_product_info_display.php to show the variable.

[QOUTE]
<ul id="productDetailsList">
<?php echo (($flag_show_product_info_model == 1 and $products_model !='') ? '<li>' . TEXT_PRODUCT_MODEL . $products_model . '</li>' : '') . "\n"; ?>
<?php echo (($flag_show_product_info_weight == 1 and $products_weight !=0) ? '<li>' . TEXT_PRODUCT_WEIGHT . $products_weight . TEXT_PRODUCT_WEIGHT_UNIT . '</li>' : '') . "\n"; ?>
<?php echo (($flag_show_product_info_quantity == 1) ? '<li>' . $products_quantity . TEXT_PRODUCT_QUANTITY . '</li>' : '') . "\n"; ?>
<?php echo (($flag_show_product_info_manufacturer == 1 and !empty($manufacturers_name)) ? '<li>' . TEXT_PRODUCT_MANUFACTURER . $manufacturers_name . '</li>' : '') . "\n"; ?>
<?php echo (($flag_show_product_info_condition == 1) ? '<li>' . $products_condition . TEXT_PRODUCT_CONDITION . '</li>' : '') . "\n"; ?> <------THIS IS WHAT I ADDED..
</ul>
<?php
}
?>
<!--eof Product details list -->
[/QUOTE]

thank you in advanced
noppie

[swguy]

You probably don't have a $flag_show_product_info_condition, so I would get rid of that conditional.

<?php echo '<li>' . $products_condition . TEXT_PRODUCT_CONDITION . '</li>' . "\n"; ?>

Also fix this typo:
$product_condition = $product_info->fields['products_condition'];

(You had it coded as $procduct_info->...)

[noppie]

ok I took out the flag statement and it still doesn't show