This document discusses data validation models and different approaches to validation. It covers syntactic validation to check data type and format, as well as semantic validation to check if data makes sense. Various PHP libraries and frameworks are benchmarked for validation performance. Deferred validation using argument resolvers is recommended to ensure objects are always valid. Domain models should encapsulate semantic validation rules. Validation should occur as early as possible to catch errors quickly.
How to improve performance testing of your application? The best way is to include performance test into your CI pipeline! Based on the examples from GOG Store, let's check how to integrate Blackfire Player with Docker and Continuous Integration pipelines!
November Camp - Spec BDD with PHPSpec 2Kacper Gunia
My slides on PHPSpec 2 from Symfony November Camp Stockholm.
www.symfony.se/november-camp/
More Domain-Driven Design related content at: https://domaincentric.net/
New Symfony Tips & Tricks (SymfonyCon Paris 2015)Javier Eguiluz
This talk included tens of tips and tricks, new features and rarely used options for Symfony and its ecosystem. Besides the full-stack Symfony framework, other related technologies were mentioned, like Doctrine, Composer, Twig, PHPUnit and Monolog.
Go beyond the documentation and explore some of what's possible if you stretch symfony to its limits. We will look at a number of aspects of symfony 1.4 and Doctrine 1.2 and tease out some powerful functionality you may not have expected to find, but will doubtless be able to use. Topics covered will include routing, forms, the config cache and record listeners. If you're comfortable in symfony and wondering what's next, this session is for you.
Building a Pyramid: Symfony Testing StrategiesCiaranMcNulty
The last few years have seen a huge adoption of testing practices, and an explosion of different testing tools, in the PHP space. The difficulties come when we have to choose which tools to use, in what combinations, and how to apply them to existing codebases.
In this talk we will look at what tools are available, what their strengths are, how to decide which set of tools to use for new or legacy projects, and when to prioritise decoupling and testability over the convenience we get from our frameworks.
Slides from my talk at the GTA-PHP Meetup Group about getting mixed HTML / PHP code into objects using SOLID principles.
Meetup page: http://www.meetup.com/GTA-PHP-User-Group-Toronto/events/230656470/
Code is on github: https://github.com/zymsys/solid
How to improve performance testing of your application? The best way is to include performance test into your CI pipeline! Based on the examples from GOG Store, let's check how to integrate Blackfire Player with Docker and Continuous Integration pipelines!
November Camp - Spec BDD with PHPSpec 2Kacper Gunia
My slides on PHPSpec 2 from Symfony November Camp Stockholm.
www.symfony.se/november-camp/
More Domain-Driven Design related content at: https://domaincentric.net/
New Symfony Tips & Tricks (SymfonyCon Paris 2015)Javier Eguiluz
This talk included tens of tips and tricks, new features and rarely used options for Symfony and its ecosystem. Besides the full-stack Symfony framework, other related technologies were mentioned, like Doctrine, Composer, Twig, PHPUnit and Monolog.
Go beyond the documentation and explore some of what's possible if you stretch symfony to its limits. We will look at a number of aspects of symfony 1.4 and Doctrine 1.2 and tease out some powerful functionality you may not have expected to find, but will doubtless be able to use. Topics covered will include routing, forms, the config cache and record listeners. If you're comfortable in symfony and wondering what's next, this session is for you.
Building a Pyramid: Symfony Testing StrategiesCiaranMcNulty
The last few years have seen a huge adoption of testing practices, and an explosion of different testing tools, in the PHP space. The difficulties come when we have to choose which tools to use, in what combinations, and how to apply them to existing codebases.
In this talk we will look at what tools are available, what their strengths are, how to decide which set of tools to use for new or legacy projects, and when to prioritise decoupling and testability over the convenience we get from our frameworks.
Slides from my talk at the GTA-PHP Meetup Group about getting mixed HTML / PHP code into objects using SOLID principles.
Meetup page: http://www.meetup.com/GTA-PHP-User-Group-Toronto/events/230656470/
Code is on github: https://github.com/zymsys/solid
Slides from the GTA-PHP meetup about the new features in PHP 7. Slides had corresponding RFC pages linked to them in the speaker notes, but they don't seem to correspond to pages here so I've made the original keynote file available at http://gtaphp.org/presentations/NewInPHP7.zip and a PowerPoint version at http://gtaphp.org/presentations/NewInPHP7.pptx.
You must’ve heard of Unit testing… If not, then this talk is definitely for you! If you do know Unit testing, you probably ran at some point into a hurdle: “Where do I start?” And despite your best efforts, you end up not having enough tests for your application – Then that change request comes in, requiring you to change that very same complex piece of code for which you are lacking tests! How do you going refactor while maintaining all those ‘undocumented’ business rules? This talk will show how Codeception can be leveraged to refactor the visuals aspects of an application, maintaining backwards compatibility on API changes and even assist in moving to a whole different server infrastructure.
Full-day tutorial for the dutch php conference 2011 giving a very quick tour around all the various areas of the ZCE syllabus and some tips on the exam styles
How do you create applications with an incredible level of extendability without losing readability in the process? What if there's a way to separate concerns not only on the code, but on the service definition level? This talk will explore structural and behavioural patterns and ways to enrich them through tricks of powerful dependency injection containers such as Symfony2 DIC component.
Rich Model And Layered Architecture in SF2 ApplicationKirill Chebunin
Presentation for Symfony Camp UA 2012.
* What are Rich Model, Service Layer & Layered Architecture
* Layered architecture in Sf2 Application
* Integration with 3rd party bundles
Un gioco in cui vincono tutti o due piccioni con una fava ;)
Lavorare rivolti alla creazione di valore per il cliente e da questo ottenere una libreria quasi pronta per essere pubblicata
What should you test with your unit tests? Some people will say that unit behaviour is best tested through it's outcomes. But what if communication between units itself is more important than the results of it? This session will introduce you to two different ways of unit-testing and show you a way to assert your object behaviours through their communications.
The IoC Hydra - Dutch PHP Conference 2016Kacper Gunia
Slides from my talk presented during Dutch PHP Conference in Amsterdam - 25 June 2016
More Domain-Driven Design related content at: https://domaincentric.net/
Software development is riddled with explicit and implicit costs. Every decision you make has a cost attached to it. When you're writing code, you're making an investment, the size of which will for a long time define the costs of your future growth. In this talk you will learn how to see, understand and game some of these forces in your favour.
Kicking off with Zend Expressive and Doctrine ORM (PHP UK 2017)James Titcumb
You've heard of Zend's new framework, Expressive, and you've heard it's the new hotness. In this talk, I will introduce the concepts of Expressive, how to bootstrap a simple application with the framework using best practices, and finally how to integrate a third party tool like Doctrine ORM.
In 2010, I told everyone how to start unit testing Zend Framework applications. In 2011, let’s take this a step further by testing services, work flows and performance. Looking to raise the bar on quality? Let this talk be the push you need to improve your Zend Framework projects.
Slides from the GTA-PHP meetup about the new features in PHP 7. Slides had corresponding RFC pages linked to them in the speaker notes, but they don't seem to correspond to pages here so I've made the original keynote file available at http://gtaphp.org/presentations/NewInPHP7.zip and a PowerPoint version at http://gtaphp.org/presentations/NewInPHP7.pptx.
You must’ve heard of Unit testing… If not, then this talk is definitely for you! If you do know Unit testing, you probably ran at some point into a hurdle: “Where do I start?” And despite your best efforts, you end up not having enough tests for your application – Then that change request comes in, requiring you to change that very same complex piece of code for which you are lacking tests! How do you going refactor while maintaining all those ‘undocumented’ business rules? This talk will show how Codeception can be leveraged to refactor the visuals aspects of an application, maintaining backwards compatibility on API changes and even assist in moving to a whole different server infrastructure.
Full-day tutorial for the dutch php conference 2011 giving a very quick tour around all the various areas of the ZCE syllabus and some tips on the exam styles
How do you create applications with an incredible level of extendability without losing readability in the process? What if there's a way to separate concerns not only on the code, but on the service definition level? This talk will explore structural and behavioural patterns and ways to enrich them through tricks of powerful dependency injection containers such as Symfony2 DIC component.
Rich Model And Layered Architecture in SF2 ApplicationKirill Chebunin
Presentation for Symfony Camp UA 2012.
* What are Rich Model, Service Layer & Layered Architecture
* Layered architecture in Sf2 Application
* Integration with 3rd party bundles
Un gioco in cui vincono tutti o due piccioni con una fava ;)
Lavorare rivolti alla creazione di valore per il cliente e da questo ottenere una libreria quasi pronta per essere pubblicata
What should you test with your unit tests? Some people will say that unit behaviour is best tested through it's outcomes. But what if communication between units itself is more important than the results of it? This session will introduce you to two different ways of unit-testing and show you a way to assert your object behaviours through their communications.
The IoC Hydra - Dutch PHP Conference 2016Kacper Gunia
Slides from my talk presented during Dutch PHP Conference in Amsterdam - 25 June 2016
More Domain-Driven Design related content at: https://domaincentric.net/
Software development is riddled with explicit and implicit costs. Every decision you make has a cost attached to it. When you're writing code, you're making an investment, the size of which will for a long time define the costs of your future growth. In this talk you will learn how to see, understand and game some of these forces in your favour.
Kicking off with Zend Expressive and Doctrine ORM (PHP UK 2017)James Titcumb
You've heard of Zend's new framework, Expressive, and you've heard it's the new hotness. In this talk, I will introduce the concepts of Expressive, how to bootstrap a simple application with the framework using best practices, and finally how to integrate a third party tool like Doctrine ORM.
In 2010, I told everyone how to start unit testing Zend Framework applications. In 2011, let’s take this a step further by testing services, work flows and performance. Looking to raise the bar on quality? Let this talk be the push you need to improve your Zend Framework projects.
Kicking off with Zend Expressive and Doctrine ORM (Sunshine PHP 2017)James Titcumb
You've heard of Zend's new framework, Expressive, and you've heard it's the new hotness. In this talk, I will introduce the concepts of Expressive, how to bootstrap a simple application with the framework using best practices, and finally how to integrate a third party tool like Doctrine ORM.
Kicking off with Zend Expressive and Doctrine ORM (PHP Srbija 2017)James Titcumb
You've heard of Zend's new framework, Expressive, and you've heard it's the new hotness. In this talk, I will introduce the concepts of Expressive, how to bootstrap a simple application with the framework using best practices, and finally how to integrate a third party tool like Doctrine ORM.
Everyone talks about raising the bar on quality of code, but it's always hard to start implementing it when you have no clue where to start. With this talk I'm shooing that there are many levels developers can improve themselves by using the right tools. In this talk I'll go over each tool with examples how to use them against your codebase. A must attend talk for every developer that wants to scale up their quality. Most PHP developers deploy code that does what the customer requested but they don't have a clue about the quality of the product they deliver. Without this knowledge, maintenance can be a hell and very expensive. In this workshop I cover unit testing, code measuring, performance testing, debugging and profiling and give tips and tricks how to continue after this workshop.
Postman is a tool for designing, sharing and testing APIs between a group of collaborators that range from the API developers down to the final clients, be them mobile apps or web apps.
This presentation focuses on using Postman's advanced free features, with a special focus on testing.
I have linked an example collection which I refer to several times during the presentation.
Section 1 - Fundamentals
Environments, variables, collections, and workspaces
Roles, VCS
Section 2 - Scripts & Testing
Pre request scripts and tests
Scopes
Pass data between requests
Section 3 - Integrated testing
Collection runners: read data from files, workflows
Monitors
CD/CI integration with Newman
Section 4 - More!
Documentation
Mock server
Integrations
In this presentation, I give an introduction to Windows PowerShell:
- What is it, and how does it work?
- How can you extend it to provide support for administering your own product or project?
NOTES:
1) Some of the text in this presentation is a little small for reading in a 400 pixel flash viewer. I'd recommend downloading the presentation instead.
2) The slides might not make sense without the notes that go with them. I've added the notes as comments to each slide. They still might not make much sense, but that's a different problem :-)
n 2010, I told everyone how to start unit testing Zend Framework applications. In 2011, let’s take this a step further by testing services, work flows and performance. Looking to raise the bar on quality? Let this talk be the push you need to improve your Zend Framework projects.
This workshop is a hands-on training where a real Zend Framework application is used as an example to start improving QA using tools to test, document and perform software metric calculations to indicate where the software can be improved. I also explain the reports produced by a CI system.
Everyone talks about raising the bar on quality of code, but it's always hard to start implementing it when you have no clue where to start. With this talk I'm shooing that there are many levels developers can improve themselves by using the right tools. In this talk I'll go over each tool with examples how to use them against your codebase. A must attend talk for every developer that wants to scale up their quality. Most PHP developers deploy code that does what the customer requested but they don't have a clue about the quality of the product they deliver. Without this knowledge, maintenance can be a hell and very expensive. In this workshop I cover unit testing, code measuring, performance testing, debugging and profiling and give tips and tricks how to continue after this workshop.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
Contact with Dawood Bhai Just call on +92322-6382012 and we'll help you. We'll solve all your problems within 12 to 24 hours and with 101% guarantee and with astrology systematic. If you want to take any personal or professional advice then also you can call us on +92322-6382012 , ONLINE LOVE PROBLEM & Other all types of Daily Life Problem's.Then CALL or WHATSAPP us on +92322-6382012 and Get all these problems solutions here by Amil Baba DAWOOD BANGALI
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Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
5. <?php
use SymfonyComponentValidatorConstraints as Assert;
class User
{
/**
* @AssertNotBlank
* @AssertString
* @AssertEmail
*/
public $email
/**
* @AssertNotBlank
* @AssertLength(min=“3”)
*/
public $username;
}
6. <?php
use AssertAssert;
class User
{
private string $username;
private string $email;
/* @throw InvalidArgumentException */
public function __construct(string $username, string $email)
{
Assert::stringNotEmpty($username);
Assert::minLength($username, 3);
Assert::stringNotEmpty($email);
Assert::email($email);
$this->username = $username;
$this->email = $email;
}
}
7. create table users
(
id bigint not null primary key auto_increment,
email varchar(100) not null,
username varchar(100) not null,
constraint email_unique unique (email),
constraint username_unique unique (username)
)
9. Optional section title
Syntactic
Checks if data has the proper
data type and format
2020-02-30
Invalid date
2030-02-03
Looks like a valid date!
Semantic
Checks if data makes sense in
our use case
2030-02-03
Seems to be invalid DoB
1903-01-02
??? ??? ??? ??? ??? ???
18. When should I be more careful about syntax
validation?
➔ Integrations with external APIs (for example oAuth)
➔ It is a core of our application
Optional section title
Usually it will be just an edge case
21. I got mczarnecki@example.com as input, but such
user already exists. Is it valid?
➔ Register user context
● Definitely NO!
Optional section title
22. I got mczarnecki@example.com as input, but such
user already exists. Is it valid?
➔ Register user context
● Definitely NO!
➔ Login user context
● Yes, it is valid
Optional section title
23. I got mczarnecki@example.com as input, but such
user already exists. Is it valid?
➔ Register user context
● Definitely NO!
➔ Login user context
● Yes, it is valid
➔ Search for friend
● No such validation rule.
Optional section title
24. I got mczarnecki@example.com as input, but such
user already exists. Is it valid?
➔ Register user context
● Definitely NO!
➔ Login user context
● Yes, it is valid
➔ Search for friend
● No such validation rule.
➔ Send order confirmation email
● Yes, it is required to exist in database
Optional section title
29. <?php
use SymfonyComponentValidatorConstraints as Assert;
class RegisterUserRequest {
/**
* @AssertNotBlank
* @AssertString
*/
public $email
/**
* @AssertNotBlank
* @AssertLength(min=“3”)
*/
public $username;
}
30. Make sure that you will
always operate on valid object
Use Argument Resolver and kernel.exception listener to handle
invalid requests
Optional section title
31. <?php
use SymfonyComponentValidatorConstraints as Assert;
class RegisterUserRequestResolver implements ArgumentValueResolverInterface
{
private SerializerInterface $serializer;
private ValidatorInterface $validator;
public function __construct(
SerializerInterface $serializer,
ValidatorInterface $validator
)
{
$this->serializer = $serializer;
$this->validator = $validator;
}
32. <?php
class RegisterUserRequestResolver implements ArgumentValueResolverInterface
{
public function supports(Request $request, ArgumentMetadata $argument)
{
return RegisterUserRequest::class === $argument->getType();
}
public function resolve(Request $request, ArgumentMetadata $argument)
{
$dto = $this->serializer->deserialize($request->getContent(),
RegisterUserRequest::class, 'json');
$errors = $this->validator->validate($dto);
if($errors->count()){
throw new Exception((string)$errors);
}
yield $dto;
}
}
33. <?php
class ExceptionListener
{
public function onKernelException(ExceptionEvent $event)
{
$exception = $event->getThrowable();
$response = new Response();
$response->setContent($exception->getMessage());
$response->setStatusCode(Response::HTTP_BAD_REQUEST);
$event->setResponse($response);
}
}
34. <?php
class UserController
{
public function index(RegisterUserRequest $request)
{
$this->usersService->createUser(
$request->email,
$request->username,
);
return new Response('', Response::HTTP_CREATED);
}
}
36. Domain model should be
always valid
To keep your code DRY most of the semantic validation should take
place in the application / domain layer.
Optional section title
37. <?php
class UserController
{
public function index(RegisterUserRequest $request)
{
$this->usersService->createUser(
$request->email,
$request->username,
);
return new Response('', Response::HTTP_CREATED);
}
}
38. <?php
class UserController
{
public function index(RegisterUserRequest $request)
{
$this->usersService->createUser(
new Username($request->username),
new Email($request->email),
);
return new Response('', Response::HTTP_CREATED);
}
}
49. Take away
➔Syntactic validation should be done as soon as possible
➔Semantic validation should be implemented in the
application / domain level
➔We should avoid of operating on incorrect objects
➔Always validate your input :)
Optional section title