ActiveRecord is the default ORM used in Rails to map database tables to Ruby classes. It provides an active record pattern implementation that allows models to be queried and persisted to a database. ActiveRecord encourages a model-driven development style with non-anemic models and associations that add methods to related classes for easy data access and management. While it abstracts some SQL details, ActiveRecord exposes SQL as needed and requires SQL knowledge to handle more complex queries.
NodeJS is an open source, cross platform run time environment for server side and networking application. NodeJS is popular in development because front & back end side both uses JavaScript Code.
Presentation about new Angular 9.
It gives introduction about angular framework.
Provides information about why we use angular,
additional features and fixes from old versions. It will clearly explain how to create a new angular project and how to use angular commands and their usages.
It will also explain about the key components like angular architecture, routing, dependency injection etc.,
NodeJS is an open source, cross platform run time environment for server side and networking application. NodeJS is popular in development because front & back end side both uses JavaScript Code.
Presentation about new Angular 9.
It gives introduction about angular framework.
Provides information about why we use angular,
additional features and fixes from old versions. It will clearly explain how to create a new angular project and how to use angular commands and their usages.
It will also explain about the key components like angular architecture, routing, dependency injection etc.,
The introduction of Project Lombok, a combination compile-time and development-time code generator, has made Java POJO verbosity history. Add Lombok to your daily coding practices, and you won't go back.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
The introduction of Project Lombok, a combination compile-time and development-time code generator, has made Java POJO verbosity history. Add Lombok to your daily coding practices, and you won't go back.
Welcome to presentation on Spring boot which is really great and relatively a new project from Spring.io. Its aim is to simplify creating new spring framework based projects and unify their configurations by applying some conventions. This convention over configuration is already successfully applied in so called modern web based frameworks like Grails, Django, Play framework, Rails etc.
DynamicRecord extends the Ruby on Rails’ ActiveRecord
(AR) object-relational mapping (ORM) module, enabling creation of
dynamic attributes that look and behave like standard AR ones without
the need to add tables or columns to the database.
Atlassian is unveiling a new dashboard that will be added to all of our products, based on the OpenSocial specification. This session explores Atlassian's use of OpenSocial, and details the new Atlassian dashboards and Gadgets.
Atlassian Speaker: Tim Moore
Key Takeaways:
* Overview of OpenSocial
* Deep-dive on Atlassian dashboards and Gadgets
* Demos, how-tos and more
WordPress development paradigms, idiosyncrasies and other big wordsTomAuger
For seasoned developers approaching WordPress customization or development for the first time the biggest challenge is often not learning the API and method calls: it's grasping the idiosyncrasies of the WordPress framework.
In this 45-minute presentation aimed at web coders who are interested in diving into WordPress customization and development, you will learn the key idioms that will accelerate your learning curve and help you approach the framework from a best practices perspective: template hierarchies, themes and child themes, taxonomies, filters and action hooks, execution order and other need-to-know concepts will be presented as well as tips on what the most active online developer communities are and the best places to go for quick (free) help and advice.
Let's Do Some Upfront Design - WindyCityRails 2014Mark Menard
My talk from WindyCityRails 2014 in Chicago
Sometimes a little time spent upfront on design is worth it. Just because we’re agile doesn’t mean no design upfront. Unfortunately some people have taken “working software over comprehensive documentation” to mean no documentation and no design. In this talk, Mark will present a method for evolving an object oriented design through tests, with a strong separation between collaborator classes and process classes. The emphasis will be on quickly driving toward a tested design before committing to functioning process code to save time commonly spent in the refactoring of operational code and test code. You’ll learn how to write better designed and tested code faster with less refactoring churn.
Jim Weirich gave us many things. Among his last was Wyriki, a small Rails app described in his own words as an "Experimental Rails application to explore decoupling app logic from Rails." Many of us paid our final respects to Jim on his last commit to this project. Now it's time to learn from it.
In this talk we'll explore how Jim applied the principles of Object Oriented Design to achieve his goals of decoupling; look at how he used decoupling to speed up testing; how decoupling improved and simplified his tests; and look at his design style. Jim's legacy leaves a lot to learn from, let's do it.
Writing small classes is hard. You know you should, but how? It's so much easier to write a large class. In this talk we'll build up a set of small classes starting from nothing using a set of directed refactorings applied as we build, all while keeping our tests green. We'll identify abstractions yearning to be free of their big class cages. In the process we'll also see how basic patterns such as composition, delegation and dependency inversion emerge from using small objects.
This is my presentation from Ruby on Ales - March 2014 - Bend, OR
To paraphrase Mark Twain, "I didn't have time to write some small classes, so I wrote a BIG ONE instead." Now what do you do? Refactor! In this talk we'll refactor a large class into a series of smaller classes. We'll learn techniques to identify buried abstractions, what to extract, what to leave behind, and why delegation, composition and dependency inversion are key to writing small things that are easier to test.
Writing small code is hard. You know you should, but how do you actually do it? It's so much easier to write a large class. In this talk we'll build up a set of small classes starting from nothing using a set of directed refactorings applied as we build. All while keeping our classes small. We'll identify abstractions yearning to be free of their big object cages. In the process we'll also see how basic patterns such as composition, delegation and dependency injection emerge from using small objects. We'll even write some tests too.
Learn from the mistakes of others (me) before you do a startup. This is a high level talk about how software startups can easily go off the rails. Learn to identify the issues early and avoid them, from handling external integration to having an empowered product owner, and more.
This is a presentation I use for my introduction to the Ruby programming language training sessions. It covers the basics of the language, such as: syntax, variables, classes, instantiating objects, and much more.
This definition supposes a relational data store. The active record pattern would not apply to document oriented systems such as CouchDB, Mongo, and other No-SQL databases, as they tend to store aggregates.
I rarely use these options. :select can lead to confusion if you select columns from more than one table because the returned objects will be read-only. I have yet to find a common use case for :group
Many times complex views will want to be backed by a custom finder to avoid N+1 issues. I usually place these in a finder module mixed into my model class to keep the model class clean.
This is where we begin joining models to other models to reflect the domain space.
I very rarely use this type of association. I find that my join models eventually begin to a
To halt the chain return false. To continue return true.