Author: Fabian Schmengler

I’m back with fresh Magento content (and hit 1000 answers on magento.stackexchange.com with this unspectacular FGITW answer)

Magento 2

• Raphael (DigitalPianism) asked, what’s the status of M2 regarding PSR compliance? (not PCI!) and I gave an overview as far as possible. Obviously, the PSR-8 Huggable April’s fool is only implemented by the community!
• I tried to Get Category IDs for Product via Service Contract / API – unfortuntely the answer seems to be: impossible
• With Get child products (Product Type instance) via Service Contract I had more success, and also proved that I am capable of asking stupid questions as well
• And here’s a more high level question that could need some attention: How to avoid Law of Demeter violation (“Newable objects should not [reference] an injectable object”)

Magento 1

• A question on testing time dependent features in Magento 1: How to change magento date/time. The “mock time()” trick does not work due to lack of namespaces.

Meta Discussion

For those interested, there’s an ongoing discussion on “off topic / on topic” and how to handle closing questions on Magento.SE:

• Are “please write code for me” questions on topic here?
• 3rd party code closes, 2016 part 2
• This Twitter thread
• To be continued: Feel free to chime in!

No, I did not give up this series, but there was Developers Paradise (read my review!), then vacation, and I stepped back a bit.

Now there is enough material that it’s time for a new post:

Magento 2

• I try to make up for confusing class names and missing API docs here: Magento 2: difference between Api\SearchCriteriaBuilder and Api\Search\SearchCriteriaBuilder?
• A problem with unit tests and code generation: Generate factory or proxy in unit tests: “ReflectionException: Class …Factory does not exist”
• In Use preconfigured builders (e.g. for SearchCriteria) in Magento 2 I deal with specialized, reusable, side effect free builders.
• A small example for the usage of repositories of the service contracts: Get product collection with product ids
• And corresponding, my question when service contracts should not be used: Is there ever a reason to prefer $model->load() over service contracts?
• There might be observers that you don’t want to have. This is how you disable them: Remove Observer from third party extension

Magento 1

• A few tips for collections, that you might not know:
  • Calculated columns: What is the use of addExpressionFieldToSelect over addFieldToSelect?
  • Filter by calculated columns: CE1.9.2 – Filter Orders collection on hasInvoices()
  • Filter by calculated columns in EAV: Filter Product Collection By Another Attribute In Product Collection eg ‘attribX’, array(‘gt’ => ‘attrib-Y’)
• How (not) to override a controller: Overwriting controller vs overwriting action controller request – Apparently there are still people doing it the old way