This powerful collection of components can be used in part or as a whole to speed up the development process. Zend Framework has the backing of Zend Technologies; the driving force behind the PHP programming language in which it is written. The first production release of the Zend Framework became available in July of Zend Framework in Action is a comprehensive tutorial that shows how to use the Zend Framework to create web-based applications and web services. This book takes you on an over-the-shoulder tour of the components of the Zend Framework as you build a high quality, real-world web application.
This book is organized around the techniques you'll use every day as a web developer "data handling, forms, authentication, and so forth. As you follow the running example, you'll learn to build interactive Ajax-driven features into your application without sacrificing nuts-and-bolts considerations like security and performance. This book is aimed at the competent PHP developer who wants to master framework-driven web development. Zend Framework in Action goes beyond the docs but still provides quick access to the most common topics encountered in the development of web applications.
Also available is all code from the book. Book Summary: With lots of practical, hands-on, step-by-step examples, this book will lead you through how to extend and optimize your Symfony2 framework. If you have a good understanding of how Symfony works and are now trying to integrate complex tasks in your application, or want to better organize your application by keeping each piece of code where it belongs so it can be decoupled and easily used elsewhere, then this book is for you.
Book Summary: Harness the power of Magento 2 — The most recent version of the world's favourite e-Commerce platform for your online store About This Book Set up, configure, and power up your Magento environment from development to production Master the use of Web API to communicate with the Magento system and create custom services Create custom modules from scratch to extend the core functionality of the Magento system Who This Book Is For This book is intended primarily for intermediate to professional-level PHP developers who are interested in Magento development.
For backend developers, several topics are covered that will enable you to modify and extend your Magento 2 store. Frontend developers will also find some coverage on how to customize the look of the site in the frontend. What You Will Learn Set up the development and production environment of Magento 2 Understand the new major concepts and conventions used in Magento 2 Build a miniature yet fully-functional module from scratch to manage your e-commerce platform efficiently Write models and collections to manage and search your entity data Dive into backend development such as creating events, observers, cron jobs, logging, profiling, and messaging features Get to the core of frontend development such as blocks, templates, layouts, and the themes of Magento 2 Use token, session, and Oauth token-based authentication via various flavors of API calls, as well as creating your own APIs Get to grips with testing Magento modules and custom themes, which forms an integral part of development In Detail Magento is one of the most exciting, flexible, and customizable e-commerce systems.
It offers you an extensive suite of powerful tools for creating and managing an online store. After years of development, Magento 2 introduces itself with a strong emphasis on modularity, Web API's, automated testing and overall new technology stack platform. The long-awaited Magento 2 release introduces a whole new e-commerce platform to develop online stores.
The all new Magento 2 architecture, Web APIs, and a host of other features are equally challenging to master as much as they are exciting to use. This book will ease the learning curve by offering step-by-step guidance on how to extend the core functionality of your Magento 2 store.
This book is your one-stop guide to build and customize a quality e-commerce website from the latest version of one of the largest, fastest growing, and most popular e-commerce platforms—Magento 2. We start off with an introduction to the fundamental concepts of Magento to give you a foundation to work from. We then move on to configure the development and basic production environment for Magento. After this, you'll get to grips with the major concepts and conventions that are new to the Magento 2 platform.
We then delve deeper to get to the core of automated deployments, persisting data, writing data fixture scripts and applying various backend and frontend modifications. As we near the end of the book, you will learn to make API calls and write automated tests.
Finally, you will be guided through building a full-blown helpdesk module from scratch. By the end of this book, you will have learned a wide range of techniques to extend and customize your Magento 2 store to fit the requirements of your business.
Style and approach This book is a mix of theoretical and step-by-step approaches, explained in a conversational and easy-to-follow style. Topics are explained sequentially, giving detailed explanations of the basic and advanced features to get you working on Magento 2.
Book Summary: When you use Hibernate in your projects, you quickly recognize that you need to do more than just add Entity annotations to your domain model classes.
Real-world applications often require advanced mappings, complex queries, custom data types and caching. Hibernate can do all of that. You just have to know which annotations and APIs you need to use.
Hibernate Tips - More than 70 solutions to common Hibernate problems shows you how to efficiently implement your persistence layer with Hibernate's basic and advanced features.
Each Hibernate Tip consists of one or more code samples and an easy to follow step-by-step explanation. You can also download an example project with executable test cases for each Hibernate Tip. Throughout this book, you will get more than 70 ready-to-use solutions that show you how to: - Define standard mappings for basic attributes and entity associations.
This book is for developers who are already working with Hibernate and who are looking for solutions for their current development tasks. It's not a book for beginners who are looking for extensive descriptions of Hibernate's general concepts.
The tips are designed as self-contained recipes which provide a specific solution and can be accessed when needed. Most of them contain links to related tips which you can follow if you want to dive deeper into a topic or need a slightly different solution. There is no need to read the tips in a specific order. Feel free to read the book from cover to cover or to just pick the tips that help you in your current project.
Book Summary: The practice of enterprise application development has benefited from the emergence of many new enabling technologies. Multi-tiered object-oriented platforms, such as Java and. NET, have become commonplace. These new tools and technologies are capable of building powerful applications, but they are not easily implemented. Common failures in enterprise applications often occur because their developers do not understand the architectural lessons that experienced object developers have learned.
Patterns of Enterprise Application Architecture is written in direct response to the stiff challenges that face enterprise application developers. NET--the same basic design ideas can be adapted and applied to solve common problems. With the help of an expert group of contributors, Martin distills over forty recurring solutions into patterns.
The result is an indispensable handbook of solutions that are applicable to any enterprise application platform. This book is actually two books in one.
The first section is a short tutorial on developing enterprise applications, which you can read from start to finish to understand the scope of the book's lessons. The next section, the bulk of the book, is a detailed reference to the patterns themselves. Each pattern provides usage and implementation information, as well as detailed code examples in Java or C. The entire book is also richly illustrated with UML diagrams to further explain the concepts.
Armed with this book, you will have the knowledge necessary to make important architectural decisions about building an enterprise application and the proven patterns for use when building them. Book Summary: Apply design principles to your classes, preparing them for reuse. You will use package design principles to create packages that are just right in terms of cohesion and coupling, and are user- and maintainer-friendly at the same time. The first part of this book walks you through the five SOLID principles that will help you improve the design of your classes.
The second part introduces you to the best practices of package design, and covers both package cohesion principles and package coupling principles.
Cohesion principles show you which classes should be put together in a package, when to split packages, and if a combination of classes may be considered a "package" in the first place. Package coupling principles help you choose the right dependencies and prevent wrong directions in the dependency graph of your packages.
What You'll Learn Apply the SOLID principles of class design Determine if classes belong in the same package Know whether it is safe for packages to depend on each other Who This Book Is For Software developers with a broad range of experience in the field, who are looking for ways to reuse,share, and distribute their code. Book Summary: 'A landmark in the process of decolonizing imperial Western knowledge. This essential volume explores intersections of imperialism and research - specifically, the ways in which imperialism is embedded in disciplines of knowledge and tradition as 'regimes of truth.
Now in its eagerly awaited second edition, this bestselling book has been substantially revised, with new case-studies and examples and important additions on new indigenous literature, the role of research in indigenous struggles for social justice, which brings this essential volume urgently up-to-date. Book Summary: Master the essential skills needed to recognize and solve complex problems with machine learning and deep learning.
Using real-world examples that leverage the popular Python machine learning ecosystem, this book is your perfect companion for learning the art and science of machine learning to become a successful practitioner. The concepts, techniques, tools, frameworks, and methodologies used in this book will teach you how to think, design, build, and execute machine learning systems and projects successfully. Practical Machine Learning with Python follows a structured and comprehensive three-tiered approach packed with hands-on examples and code.
Part 1 focuses on understanding machine learning concepts and tools. This includes machine learning basics with a broad overview of algorithms, techniques, concepts and applications, followed by a tour of the entire Python machine learning ecosystem. Brief guides for useful machine learning tools, libraries and frameworks are also covered. Part 2 details standard machine learning pipelines, with an emphasis on data processing analysis, feature engineering, and modeling.
You will learn how to process, wrangle, summarize and visualize data in its various forms. Feature engineering and selection methodologies will be covered in detail with real-world datasets followed by model building, tuning, interpretation and deployment. Part 3 explores multiple real-world case studies spanning diverse domains and industries like retail, transportation, movies, music, marketing, computer vision and finance. For each case study, you will learn the application of various machine learning techniques and methods.
The hands-on examples will help you become familiar with state-of-the-art machine learning tools and techniques and understand what algorithms are best suited for any problem. Practical Machine Learning with Python will empower you to start solving your own problems with machine learning today!
What You'll Learn Execute end-to-end machine learning projects and systems Implement hands-on examples with industry standard, open source, robust machine learning tools and frameworks Review case studies depicting applications of machine learning and deep learning on diverse domains and industries Apply a wide range of machine learning models including regression, classification, and clustering.
It covers all you need to get up and running, from installing Ruby, Rails and SQLite to building and deploying a fully-featured web application. The third edition of this book has been fully updated to cover Rails 5, the latest version of the framework.
Unlike other Rails books, this book doesn't assume that you are an experienced web developer, or that you've used Ruby before. An entire chapter is devoted to learning Ruby in a fun way, using the interactive Ruby console, so you can follow along at home.
You'll be an accomplished Ruby programmer in no time! You'll then start using Rails to build a practical, working project: a Reddit-like social news application. As you'll build the app, you'll gain valuable experience of using Rails features such as user authentication, session cookies, and automated testing. The book finishes with chapters on debugging, benchmarking and deployment to a live web server. If you have a basic understanding of PHP and want to bolster your skills, this is your book.
Speed and simplicity, for starters. This rapid application development framework and its ecosystem of tools let you quickly build new sites and applications with clean, readable code. Fully updated to cover Laravel 5. Matt Stauffer, a leading teacher and developer in the Laravel community, delivers a high-level overview and concrete examples to help experienced PHP web developers get started with this framework right away. This updated edition also covers Laravel Dusk and Horizon and provides information about community resources and other noncore Laravel packages.
Book Summary: Covers fundamental and advanced Java database programmingtechniques for beginning and experienced readers This book covers the practical considerations and applicationsin database programming using Java NetBeans IDE, JavaServer Pages,JavaServer Faces, and Java Beans, and comes complete with authenticexamples and detailed explanations.
Two data-action methods are developed and presented in thisimportant resource. With Java Persistence API and plug-in Tools,readers are directed step by step through the entire databaseprogramming development process and will be able to design andbuild professional data-action projects with a few lines of code inmere minutes. The second method, runtime object, allows readers todesign and build more sophisticated and practical Java databaseapplications.
Ideal for classroom and professional training use, this textalso features: A detailed introduction to NetBeans Integrated DevelopmentEnvironment Java web-based database programming techniques webapplications and web services More than thirty detailed, real-life sample projects analyzedvia line-by-line illustrations Problems and solutions for each chapter A wealth of supplemental material available for download fromthe book's ftp site, including PowerPoint slides, solution manual,JSP pages, sample image files, and sample databases Coverage of two popular database systems: SQL Server andOracle This book provides undergraduate and graduate students as wellas database programmers and software engineers with the necessarytools to handle the database programming issues in the JavaNetBeans environment.
To obtain instructor materials please send an email to: [email protected]. Book Summary: In this new collection of her provocative essays on Third World art and culture, Trinh Minh-ha offers new challenges to Western regimes of knowledge.
Bringing to her subjects an acute sense of the many meanings of the marginal, she examines topics such as Asian and African texts, the theories of Barthes, questions of spectatorship, the enigmas of art, and the perils of anthropology.
When the Moon Waxes Red is an extended argument against reductive analyses, even those that appear politically adroit. The multiply-hyphenated peoples of color are not simply placed in a duality between two cultural heritages; throughout, Trinh describes the predicament of having to live "a difference that has no name and too many names already.
By rewriting the always emerging, already distorted place of struggle, such work seeks to "beat the master at his own game. Book Summary: Create applications for all major smartphone platforms Creating applications for the myriad versions and varieties of mobile phone platforms on the market can be daunting to even the most seasoned developer. This authoritative guide is written in such as way that it takes your existing skills and experience and uses that background as a solid foundation for developing applications that cross over between platforms, thereby freeing you from having to learn a new platform from scratch each time.
Concise explanations walk you through the tools and patterns for developing for all the mobile platforms while detailed steps walk you through setting up your development environment for each platform. Covers all the major options from native development to web application development Discusses major third party platform development acceleration tools, such as Appcelerator and PhoneGap Zeroes in on topics such as developing applications for Android, IOS, Windows Phone 7, and Blackberry Professional Mobile Cross Platform Development shows you how to best exploit the growth in mobile platforms, with a minimum of hassle.
Book Summary: This book investigates and critically interprets the underrepresentation of the global South in global knowledge production. The author analyses the serious bias towards scholars and institutions from this region: he argues that this phenomenon causes serious disadvantages not only for authors and institutions, but global science as well by impeding the flow of fresh, innovative scholarship.
This book uses a combination of field theory and world-systems analysis to explain the motives and dynamics behind the geopolitical and societal inequalities in the system of global knowledge production. Subsequently, the author offers several solutions by which these inequalities could be reduced, or even eliminated. This book will be of interest and value to scholars of knowledge inequalities, and knowledge production in the global South.
His practical and concrete suggestions to subvert this system of horizontal and vertical inequalities could not be timelier and provides momentum to decolonisation movements in higher education across the world. This book is an epitome of his effort on this cause. Demeter utilizes his wealth of data including authorships, citations, journal publishers, editorial review board compositions, the reviewers and the editors of journals as strong evidence of inequality with his three-dimensional model of academic stratification.
This book is a must-read for scholars both in the Global North and the Global South to reflect on the current state of academic knowledge gatekeeping and production. It will spark a dialogue between scholars to address the dominance of the Global North especially in the field of communication. Demeter employs a useful critical combination of the world-systems perspective and Bourdieusian field theory to organize the results of his careful and sophisticated empirical studies of global knowledge production.
He is an intrepid protagonist of a more egalitarian human future. No knowledge of database programming or administration is necessary. What You Will Learn Learn concepts of data modelling and relation algebra Install and set up PostgreSQL database server and client software Implement data structures in PostgreSQL Manipulate data in the database using SQL Implement data processing logic in the database with stored functions, triggers and views Test database solutions and assess the performance Integrate database with Java applications Detailed knowledge of the main PostgreSQL building objects, most used extensions Practice database development life cycle including analysis, modelling, documentation , testing, bug fixes and refactoring In Detail PostgreSQL is one of the most powerful and easy to use database management systems.
It has strong support from the community and is being actively developed with a new release every year. Also it provides NoSQL capabilities, and very rich data types and extensions. All that makes PostgreSQL a very attractive solution in various kinds of software systems. The book starts with the introduction of relational databases with PostegreSQL. This will give you a very robust background to tune and troubleshoot your application. The book then covers the implementation of data models in the database such as creating tables, setting up integrity constraints, building indexes, defining views and other schema objects.
Finally by the end of the book, you'll learn to use the JDBC driver and manipulate data objects in the Hibernate framework. Book Summary: The Group in Society meets the challenges of teaching courses on small groups by revealing the full complexity of small groups and their place in society.
It shows students the value of learning how to carefully study a group's history and context, rather than merely learning a fixed set of group participation skills. This text brings together disparate theories and research from communication, social psychology, organizational and managerial studies, and sociology in a way that helps students make sense of a complex body of scholarship on groups. An open-access student study site at www.
Next we'll update a product's name, given its id. This simple example will help demonstrate Doctrine's implementation of the UnitOfWork pattern. Doctrine keeps track of all the entities that were retrieved from the Entity Manager, and can detect when any of those entities' properties have been modified. We continue with the bug tracker example by creating the Bug and User classes. All of the properties we've seen so far are of simple types integer, string, and datetime. But now, we'll add properties that will store objects of specific entity types in order to model the relationships between different entities.
At the database level, relationships between entities are represented by foreign keys. But with Doctrine, you'll never have to and never should work with the foreign keys directly. You should only work with objects that represent foreign keys through their own identities. On the inverse sides of these foreign keys you can have OneToMany associations. Obviously you can have ManyToMany associations that connect two tables with each other through a join table with two foreign keys.
Now that you know the basics about references in Doctrine, we can extend the domain model to match the requirements:. Whenever an entity is created from the database, a Collection implementation of the type PersistentCollection will be injected into your entity instead of an ArrayCollection. This helps Doctrine ORM understand the changes that have happened to the collection that are noteworthy for persistence.
Lazy load proxies always contain an instance of Doctrine's EntityManager and all its dependencies. Additionally you should be aware that dumping the EntityManager to a Browser may take several minutes, and the Debug::dump method just ignores any occurrences of it in Proxy instances.
Because we only work with collections for the references we must be careful to implement a bidirectional reference in the domain model.
The concept of owning or inverse side of a relation is central to this notion and should always be kept in mind. The following assumptions are made about relations and have to be followed to be able to work with Doctrine ORM. Consistency of bi-directional references on the inverse side of a relation have to be managed in userland application code. Doctrine cannot magically update your collections to be consistent.
In the case of Users and Bugs we have references back and forth to the assigned and reported bugs from a user, making this relation bi-directional. We have to change the code to ensure consistency of the bi-directional reference:. I chose to name the inverse methods in past-tense, which should indicate that the actual assigning has already taken place and the methods are only used for ensuring consistency of the references.
This approach is my personal preference, you can choose whatever method to make this work. You can see from User addReportedBug and User assignedToBug that using this method in userland alone would not add the Bug to the collection of the owning side in Bug reporter or Bug engineer.
Using these methods and calling Doctrine for persistence would not update the Collections' representation in the database. Only using Bug setEngineer or Bug setReporter correctly saves the relation information.
In a normalized relational model, the foreign key is saved on the Bug's table, hence in our object-relation model the Bug is at the owning side of the relation. You should always make sure that the use-cases of your domain model should drive which side is an inverse or owning one in your Doctrine mapping.
In our example, whenever a new bug is saved or an engineer is assigned to the bug, we don't want to update the User to persist the reference, but the Bug. This is the case with the Bug being at the owning side of the relation. We are now finished with the domain model given the requirements. Lets add metadata mappings for the Bug entity, as we did for the Product before:.
Here we have the entity, id and primitive type definitions. After the field definitions, the two qualified references to the user entity are defined.
They are created by the many-to-one tag. The class name of the related entity has to be specified with the target-entity attribute, which is enough information for the database mapper to access the foreign-table. Since reporter and engineer are on the owning side of a bi-directional relation, we also have to specify the inversed-by attribute. They have to point to the field names on the inverse side of the relationship.
We will see in the next example that the inversed-by attribute has a counterpart mapped-by which makes that the inverse side. The last definition is for the Bug products collection. It holds all products where the specific bug occurs. Again you have to define the target-entity and field attributes on the many-to-many tag.
Here are some new things to mention about the one-to-many tags. Remember that we discussed about the inverse and owning side. Now both reportedBugs and assignedBugs are inverse relations, which means the join details have already been defined on the owning side. Therefore we only have to specify the property on the Bug class that holds the owning sides. So far, we've seen the most basic features of the metadata definition language.
To explore additional functionality, let's first create new User entities:. Since we only have one user and product, probably with the ID of 1, we can call this script as follows:. See how simple it is to relate a Bug, Reporter, Engineer and Products? Also recall that thanks to the UnitOfWork pattern , Doctrine will detect these relations and update all of the modified entities in the database automatically when flush is called.
Using the previous examples we can fill up the database quite a bit. However, we now need to discuss how to query the underlying mapper for the required view representations. When opening the application, bugs can be paginated through a list-view, which is the first read-only use-case:.
The console output of this script is then:. You may wonder why we start writing SQL at the beginning of this use-case. It does not know the concept of columns and tables, but only those of Entity-Class and property.
Using the Metadata we defined before it allows for very short distinctive and powerful queries. There are more details about this in the relevant part of the documentation. As a last resort you can still use Native SQL and a description of the result set to retrieve entities from the database.
Using Native SQL you could even use stored procedures for data retrieval, or make use of advanced non-portable database queries like PostgreSql's recursive queries. In the previous use-case we retrieved the results as their respective object instances.
We are not limited to retrieving objects only from Doctrine however. For a simple list view like the previous one we only need read access to our entities and can switch the hydration from objects to simple PHP arrays instead. Hydration can be an expensive process so only retrieving what you need can yield considerable performance benefits for read-only requests. There is one significant difference in the DQL query however, we have to add an additional fetch-join for the products connected to a bug.
The resulting SQL query for this single select statement is pretty large, however still more efficient to retrieve compared to hydrating objects. The next Use-Case is displaying a Bug by primary key. This could be done using DQL as in the previous example with a where clause, however there is a convenience method on the EntityManager that handles loading by primary key, which we have already seen in the write scenarios:.
Since we only retrieved the bug by primary key both the engineer and reporter are not immediately loaded from the database but are replaced by LazyLoading proxies. These proxies will load behind the scenes, when the first method is called on them.
Sample code of this proxy generated code can be found in the specified Proxy Directory, it looks like:. Lazy loading additional data can be very convenient but the additional queries create an overhead. If you know that certain fields will always or usually be required by the query then you will get better performance by explicitly retrieving them all in the first query. For the next use-case we want to retrieve the dashboard view, a list of all open bugs the user reported or was assigned to.
Until now we only retrieved entities or their array representation. Doctrine also supports the retrieval of non-entities through DQL.
There is a single use-case missing from the requirements, Engineers should be able to close a bug. This looks like:. This means your Bug with exactly this id can only exist once during the whole request no matter how often you call EntityManager find. When flush is called the EntityManager loops over all the entities in the identity map and performs a comparison between the values originally retrieved from the database and those values the entity currently has.
Only the changed columns are updated, which offers a pretty good performance improvement compared to updating all the properties. For now we have not discussed how to separate the Doctrine query logic from your model. The similar concept in Doctrine2 is called Entity Repositories, integrating the repository pattern at the heart of Doctrine. Every Entity uses a default repository by default and offers a bunch of convenience methods that you can use to query for instances of that Entity. Take for example our Product entity.
If we wanted to Query by name, we can use:. The method findOneBy takes an array of fields or association keys and the values to match against. If you want to find all entities matching a condition you can use findBy , for example querying for all closed bugs:. Compared to DQL these query methods are falling short of functionality very fast. Doctrine offers you a convenient way to extend the functionalities of the default EntityRepository and put all the specialized DQL query logic on it.
Now we can remove our query logic in all the places and instead use them through the EntityRepository. As an example here is the code of the first use case List of Bugs:. Using EntityRepositories you can avoid coupling your model with specific query logic. You can also re-use query logic easily throughout your application. The method count takes an array of fields or association keys and the values to match against. This provides you with a convenient and lightweight way to count a resultset when you don't need to deal with it:.
This tutorial is over here, I hope you had fun. Additional content will be added to this tutorial incrementally, topics will include:. Additional details on all the topics discussed here can be found in the respective manual chapters. Translate Loading What are Entities? Entity Classes How can I add default values to a column? Mapping Why do I get exceptions about unique constraint failures during dcb7b9ea2b16c55bbcdcaedb? How can I filter an association? I call clear on a One-To-Many collection but the entities are not deleted How can I add columns to a many-to-many table?
How can i paginate fetch-joined collections?
0コメント