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SitePoint PHP Blog:
CRUD (Create Read Update Delete) in a Laravel App
May 25, 2015 @ 09:49:11

The SitePoint PHP blog continues their series around the creation of a basic CRUD (create, read, update and delete) application with PHP. In this second part of the series they build on the simple application in the first part and enhance it with the remainder of the CRUD handling.

In the previous part, we've bootstrapped our Laravel CRUD application by creating the database, some controllers, basic routes and simple views. In this part, we'll wrap things up and implement proper CRUD.

He jumps right in and creates the controller action and view to take in new "Task" information. This includes the installation of the Illuminate HTML package and setup of the needed provider and facades. He shows how to create the Task model and hook the results of the request into it and make the new record. This includes some basic "required" validation too. He then shows how to read and display the list of current tasks as well as setting up the edit and delete actions for each task.

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tutorial crud application laravel series part2 model form view

Link: http://www.sitepoint.com/crud-create-read-update-delete-laravel-app/

Michael Dyrynda:
Filtering models with Eloquent in Laravel
March 06, 2015 @ 10:14:12

Michael Dyrynda has a recent post about handling matching and limiting results in Eloquent models in a Larvel-based application.

Say you have a users table with the following fields in it name, email, city, state, zip. You may want to provide fuzzy searching for the name, email, or city and exact matching for the state and zipfields. Why fuzzy matching for only some of the fields? Well, you might want to search for everyone whose name contains Michael or has has an @gmail.com address. Be mindful of the latter; it will expose a large dataset if you're not careful in restricting access to the functionality. You probably wouldn't want to allow it in anything bigger than a proof of concept (which this is!).

He goes through the model process, showing how to set up a simple model with the fields mentioned and make use of query scopes to limit returned results. Code is included showing how to define the "scopeFilter" method in the model and call the "User" model instance with the "filter" method. The example limits the results to only the users with a value in the "name" and "state" field.

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filter model results tutorial eloquent laravel scope query

Link: https://iatstuti.net/blog/filtering-models-with-eloquent-in-laravel

Mathias Verraes:
Form, Command, and Model Validation
February 17, 2015 @ 12:34:38

In his new post Mathias Verraes talks about the separation of concerns that, in his opinion, should exist between form, command and model and the validation of each.

Many of the frameworks I've worked with, promise to separate responsibilities with MVC. In practice, the end up coupling everything to everything. The forms are coupled to the models, and there's a grand unified validation layer. This may be convenient at first, but it breaks down for larger systems, and creates headaches when having to support multiple clients. My approach is to clearly separate the validation for the form itself, from the Command validation and the model validation.

He talks about each of the different types in turn, starting with Commands. He suggests that the validation should happen in Value Objects in the Commands, validation rules in Models and some client-side validation (backed up by backend checking, of course) via Javascript or HTML5 fields.

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form command model validation separation concerns valueobject

Link: http://verraes.net/2015/02/form-command-model-validation/

Freek Lijten:
Separating models and logic for storing and loading
February 16, 2015 @ 10:53:43

In a recent post Freek Lijten shares a simplified version of a solution he came up with to separate models and their logic between the fetch and save operations.

Basically I am wondering how storing data and retrieving data are different and how you should / could model this. Since we need different information while storing and retrieving information it makes sense to model those actions in different ways. The how is still bothering me and in this post I give a possible solution. I truly hope I can get some reactions and thoughts of other people in on how they would solve these kind of problems.

He introduces the basic structure of the application he's working with and how the concept of "documents" ties in. Then he gets into the problem: the differences in data required for the save versus locate and load. His solution is to split out the different pieces (relations) of the document into separate value objects. These objects then only contain the handling to get only the relations needed on the load. He doesn't like the solution, however, because of the amount of overhead it introduces.

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separate model load locate save operation object

Link: http://www.freeklijten.nl/home/2015/02/13/Separating-models-and-logic-for-storing-and-loading

SitePoint PHP Blog:
Ardent Laravel Models on Steroids
September 19, 2014 @ 11:54:34

In Ardent, an enhancement to the model system in the Laravel framework that allows for easy configuration of validation rules.

One of the (few) things I don't like about Laravel is that you cannot move the validation code from your controller to your models easily. When I write software I like to apply the "fat models, skinny controllers" principle. So, for me, writing the validation code in the controller is not a good thing. To solve this, I'd like to introduce Ardent, a great package for Laravel 4. To be more precise, Ardent presents itself as "Self-validating smart models for Laravel Framework 4's Eloquent ORM." In other words: exactly what we need!

He introduces the library as a part of a test application, a To-Do list that includes user and task handling. He starts with the creation of the base Laravel migrations to build the tables and the code for the two necessary models. He then shows how to install Ardent and put it to use in the controller code, adding validation rules and messages for each property on failure. He also shows how to use the model auto-hydration and hooks to make working with the models even easier. He finishes off the post showing how to set up relations "the Ardent way" using a slightly different format as the usual Laravel handling.

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laravel model ardent library tutorial introduction

Link: http://www.sitepoint.com/ardent-laravel-models-steroids/

Reddit.com:
What exactly is 'model' in MVC?
June 20, 2014 @ 11:25:48

If you're relatively new to the world of the MVC (Model-View-Controller) design pattern and its use, you may be trying to figure out exactly what each piece is. One of the more difficult relationships is between models and controllers, more specifically what each are supposed to contain. In this discussion over on Reddit several people weigh in on their opinions and own suggestions about what models should be.

Sometimes I feel I should avoid session in model ... but sometimes I feel using session in controller is putting business logic in controller which is bad ... sometimes I feel I should avoid $_POST and $_GET in model ... but sometimes I feel receiving data in controller and then send all of them to model is an unnecessary move ... sometimes I feel one model should represent almost everything about one certain table ... sometimes I feel it's almost god pattern if that table is the core of your application, but separate the model into many model is confusing too since they are using the same table. I wanna be a Model Master who can explain 'Model' very well. Who can help me plz.

Comments on the post explain models in several different ways including:

  • Thinking of it as a representation of "domain" functionality
  • Models as a 1-to-1 relationship with database tables
  • The differences between them and collections
  • Links to some helpful libraries like Eloquent and Doctrine
0 comments voice your opinion now!
model mvc modelviewcontroller opinion definition

Link: http://www.reddit.com/r/PHP/comments/28luto/what_exactly_is_model_in_mvc/

Rami Alnawas:
How to unit test code with Phalcon MVC Models
April 29, 2014 @ 11:57:39

Rami Alnawas has posted an interesting tutorial for the Phalcon users out there showing one way you can unit test your models. It's based on his own experience with the framework in a current project.

My first contribution to the PHP community in general, and Phalcon folks in particular, was the introduction of MVC Functional Testing with PHPUnit, this meant that Applications developed using Phalcon Framework could be unit tested by requesting a url then asserting that the response is handled by a specific action within the controller. [...] To date, my latest addition is an example of how to unit test code that utilises Phalcon models, mainly the various static find methods. The code is available on github and the coverage report is coveralls.io.

He shows it at work, creating a simple "Popup" model and a facade to help with making instances for testing. He also includes the code to test this facade, checking the results of methods like "fetchall", "select" and "execute".

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phalcon framework unit test coverage mvc model tutorial

Link: http://www.rami.me.uk/how-to-unit-test-code-with-phalcon-mvc-models

CodeHeaps.com:
Creating a Blog Using Laravel 4 (Series)
February 18, 2014 @ 10:53:20

The CodeHeaps.com tutorial site, they've posted the latest in their tutorial series creating a blog with the popular Laravel framework. In the first part they looked at models and database seeing, in part two they focused on controllers and in this latest part they focus on routing.

In this article we will create a simple blog using Laravel 4. Our blog application will have the following features: display posts with read more links on home page, search posts on blog, display a single post with comments and allow users to post comments. Administrator will be able to perform CRUD operations on posts and comments [and ] will be able to moderate comments.

In the three parts so far they show some simple migrations to create the "posts" and "comments" table and some basic (lorem ipsum) content. They create a basic "blog" controller and login functionality to identify the current user. Finally, they create the routing to hook it all together including some "before" hooks and authentication protection on the administrative areas.

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series tutorial laravel framework blog beginner model controller routing

Link: http://www.codeheaps.com/php-programming/creating-a-blog-using-laravel-4-part-3-routing/

Kristopher Wilson:
Decoupling the Framework
December 02, 2013 @ 12:19:36

Kristopher Wilson has a new post to his site talking about something that could be very difficult with an existing application (and a good starting place for a new one) - decoupling from the framework. He advocates that your application shouldn't be an extension of the framework, more so a user of it to make it potentially easy to replace.

We spend a lot of time discussing and analyzing the features and merits of several frameworks, trying very hard to make sure we find the perfect one to use for our project. Rightfully so: picking the wrong framework can lead to a slew of issues down the road in terms of maintenance and scalability. [...] We also spent a considerable amount of effort making sure that there is minimal amount of coupling within our code. Strong coupling leads to problems testing, adapting, refactoring and reusing code. What if we applied that same principal to dealing with whatever framework we're using?

He goes on to look at the "framework is not your application" concept and fleshes it out with examples of it applied to a few different topics: Controllers, Models and ORMs. He also shows how, through the use of something like Doctrine's EntityManager, you can easily abstract things out so the internals of the application can easily split the application and framework.

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decouple framework controller model orm doctrine entity

Link: http://kristopherwilson.com/2013/11/27/decoupling-the-framework/

Zumba Engineering Blog:
Incorporating Mongounit into Multi-datasource Models with Traits
October 31, 2013 @ 10:42:27

On the Zubma Engineering blog today Chris Saylor has written up a tutorial showing how they used traits to use multiple data sources with Mongounit, working around the single source limitations it enforces.

A while back we open sourced Mongounit, a PHPUnit extension for testing models utilizing mongodb. One key issue that we've discovered as we incorporate MongoDB into more of our data models is that extending Mongounit's TestCase class limits that unit test towards Mongo only as the datasource. Since only a portion of our data is in Mongo while the remaining is in MySQL, limiting a test case to work with one datasource or another is too limiting.

They tried two other solutions first, separating out the tests by data source and manually clear the Mongo data in the tests, but both ran into problems. Instead, they opted to use traits to provide drop-in Mongo testing support as needed. It provides a simple interface to set up and tear down the needed Mongo resources - an example of which is also provided in the post. The code for the trait can be found on Github.

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trait mongounit unittest database multiple source model

Link: http://engineering.zumba.com/2013/10/30/multiple-data-sources-phpunit-testing/


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