Development


Importing wordpress database error “Invalid default value for .. “

While moving my wordpress blog to the new Google Cloud Hosting setup, the database would not import. This is due to MySQL being setup in strict mode by default in MySQL version 5.7 . One solution on the internet is to set MySQL’s SQL_MODE to “NO_ENGINE_SUBSTITUTION”, but Google knows better and won’t let you do that for security purposes. They do provide an option https://cloud.google.com/sql/docs/mysql/flags to alter the settings and allow for invalid dates. In the drop down as pictured, select “Allow Invalid Dates”. Then your wordpress database import will work.


Prevent iPhone from zooming when entering text

The iPhone likes to zoom into form elements when entering text. This is great, but once you’re finished entering text, the zoom remains and leaves an undesirable horizontal scrollbar and generally poor user experience until (if) they figure out they need to zoom back out. The below code will prevent the zooming in the first place.

/* prevent iphones from zooming in when entering text */
@media screen and (-webkit-min-device-pixel-ratio:0) { 
	select, textarea, input[type="text"], input[type="password"], input[type="datetime"], input[type="datetime-local"], input[type="date"], input[type="month"], input[type="time"], input[type="week"], input[type="number"], input[type="email"], input[type="url"], input[type="search"], input[type="tel"], input[type="color"] { font-size: 16px; }
}

Clean out Magento test data before launch

Before launching a site to production, or if it’s creating a copy of the website and database for development and testing purposes, you may need to clear out all customer and order information. Kudos to Geoff Jackson for this solution https://www.designhaven.co.uk/2014/08/cleanly-delete-orders-sales-customer-data-magento/ . I’ve used this a few times now and want to include it here for easy reference.

SET FOREIGN_KEY_CHECKS=0;
 
##############################
# SALES RELATED TABLES
##############################
TRUNCATE `sales_flat_creditmemo`;
TRUNCATE `sales_flat_creditmemo_comment`;
TRUNCATE `sales_flat_creditmemo_grid`;
TRUNCATE `sales_flat_creditmemo_item`;
TRUNCATE `sales_flat_invoice`;
TRUNCATE `sales_flat_invoice_comment`;
TRUNCATE `sales_flat_invoice_grid`;
TRUNCATE `sales_flat_invoice_item`;
TRUNCATE `sales_flat_order`;
TRUNCATE `sales_flat_order_address`;
TRUNCATE `sales_flat_order_grid`;
TRUNCATE `sales_flat_order_item`;
TRUNCATE `sales_flat_order_payment`;
TRUNCATE `sales_flat_order_status_history`;
TRUNCATE `sales_flat_quote`;
TRUNCATE `sales_flat_quote_address`;
TRUNCATE `sales_flat_quote_address_item`;
TRUNCATE `sales_flat_quote_item`;
TRUNCATE `sales_flat_quote_item_option`;
TRUNCATE `sales_flat_quote_payment`;
TRUNCATE `sales_flat_quote_shipping_rate`;
TRUNCATE `sales_flat_shipment`;
TRUNCATE `sales_flat_shipment_comment`;
TRUNCATE `sales_flat_shipment_grid`;
TRUNCATE `sales_flat_shipment_item`;
TRUNCATE `sales_flat_shipment_track`;
TRUNCATE `sales_invoiced_aggregated`;
TRUNCATE `sales_invoiced_aggregated_order`;
TRUNCATE `log_quote`;
 
ALTER TABLE `sales_flat_creditmemo_comment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_creditmemo_grid` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_creditmemo_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_invoice` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_invoice_comment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_invoice_grid` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_invoice_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order_address` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order_grid` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order_payment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_order_status_history` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_address` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_address_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_item_option` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_payment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_quote_shipping_rate` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_shipment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_shipment_comment` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_shipment_grid` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_shipment_item` AUTO_INCREMENT=1;
ALTER TABLE `sales_flat_shipment_track` AUTO_INCREMENT=1;
ALTER TABLE `sales_invoiced_aggregated` AUTO_INCREMENT=1;
ALTER TABLE `sales_invoiced_aggregated_order` AUTO_INCREMENT=1;
ALTER TABLE `log_quote` AUTO_INCREMENT=1;
 
#########################################
# DOWNLOADABLE PURCHASED
#########################################
TRUNCATE `downloadable_link_purchased`;
TRUNCATE `downloadable_link_purchased_item`;
 
ALTER TABLE `downloadable_link_purchased` AUTO_INCREMENT=1;
ALTER TABLE `downloadable_link_purchased_item` AUTO_INCREMENT=1;
 
#########################################
# RESET ID COUNTERS
#########################################
TRUNCATE `eav_entity_store`;
ALTER TABLE  `eav_entity_store` AUTO_INCREMENT=1;
 
 
##############################
# CUSTOMER RELATED TABLES
##############################
TRUNCATE `customer_address_entity`;
TRUNCATE `customer_address_entity_datetime`;
TRUNCATE `customer_address_entity_decimal`;
TRUNCATE `customer_address_entity_int`;
TRUNCATE `customer_address_entity_text`;
TRUNCATE `customer_address_entity_varchar`;
TRUNCATE `customer_entity`;
TRUNCATE `customer_entity_datetime`;
TRUNCATE `customer_entity_decimal`;
TRUNCATE `customer_entity_int`;
TRUNCATE `customer_entity_text`;
TRUNCATE `customer_entity_varchar`;
TRUNCATE `tag`;
TRUNCATE `tag_relation`;
TRUNCATE `tag_summary`;
TRUNCATE `tag_properties`;
TRUNCATE `wishlist`;
TRUNCATE `log_customer`;
 
ALTER TABLE `customer_address_entity` AUTO_INCREMENT=1;
ALTER TABLE `customer_address_entity_datetime` AUTO_INCREMENT=1;
ALTER TABLE `customer_address_entity_decimal` AUTO_INCREMENT=1;
ALTER TABLE `customer_address_entity_int` AUTO_INCREMENT=1;
ALTER TABLE `customer_address_entity_text` AUTO_INCREMENT=1;
ALTER TABLE `customer_address_entity_varchar` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity_datetime` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity_decimal` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity_int` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity_text` AUTO_INCREMENT=1;
ALTER TABLE `customer_entity_varchar` AUTO_INCREMENT=1;
ALTER TABLE `tag` AUTO_INCREMENT=1;
ALTER TABLE `tag_relation` AUTO_INCREMENT=1;
ALTER TABLE `tag_summary` AUTO_INCREMENT=1;
ALTER TABLE `tag_properties` AUTO_INCREMENT=1;
ALTER TABLE `wishlist` AUTO_INCREMENT=1;
ALTER TABLE `log_customer` AUTO_INCREMENT=1;
 
 
##############################
# ADDITIONAL LOGS
##############################
TRUNCATE `log_url`;
TRUNCATE `log_url_info`;
TRUNCATE `log_visitor`;
TRUNCATE `log_visitor_info`;
TRUNCATE `report_event`;
TRUNCATE `report_viewed_product_index`;
TRUNCATE `sendfriend_log`;
TRUNCATE `log_summary`
 
ALTER TABLE `log_url` AUTO_INCREMENT=1;
ALTER TABLE `log_url_info` AUTO_INCREMENT=1;
ALTER TABLE `log_visitor` AUTO_INCREMENT=1;
ALTER TABLE `log_visitor_info` AUTO_INCREMENT=1;
ALTER TABLE `report_event` AUTO_INCREMENT=1;
ALTER TABLE `report_viewed_product_index` AUTO_INCREMENT=1;
ALTER TABLE `sendfriend_log` AUTO_INCREMENT=1;
ALTER TABLE `log_summary` AUTO_INCREMENT=1;
 
SET FOREIGN_KEY_CHECKS=1;

Composer: Requirements could not be resolved to an installable set of packages

After cleaning out the /vendor directory and running composer install, this error “Requirements could not be resolved to an installable set of packages” appeared and the process stopped. This seems to be a common and difficult issue to resolve with composer. This post from stackoverflow has a pretty good explanation on how it could be a dependency version issue http://stackoverflow.com/questions/20996767/requirements-could-not-be-resolved-to-an-installable-set-of-packages , but that wasn’t it for me as it was just working. My composer.json file included about 20 dependencies, so I removed all but 3 and installed them successfully. Then added a few more and ran composer update and repeated this process until everything was back.


Magento dev site redirects to live site

When taking a copy of a production site and installing it on a dev server, you’ll need to do a few things for the application to load the dev server and not redirect to the live site.
1. Change the site_url entries in the core_config_data table to match your dev site’s url
2. Delete everything in the magentoroot/var directory
3. Update the app/etc/local.xml file to point at your local database
4. This is the one that usually stumps me for a bit… ensure the magentoroot/var directory’s permissions are opened up (777 the var directory). If this is not done, Magento will write your Magento temporary and cache to the system temp and you magically be redirected to the live site.