planet | application framework that includes everything | Application Framework library
kandi X-RAY | planet Summary
kandi X-RAY | planet Summary
Rails is a web-application framework that includes everything needed to create database-backed web applications according to the Model-View-Control pattern. This pattern splits the view (also called the presentation) into "dumb" templates that are primarily responsible for inserting pre-built data in between HTML tags. The model contains the "smart" domain objects (such as Account, Product, Person, Post) that holds all the business logic and knows how to persist themselves to a database. The controller handles the incoming requests (such as Save New Account, Update Product, Show Post) by manipulating the model and directing data to the view. In Rails, the model is handled by what’s called an object-relational mapping layer entitled Active Record. This layer allows you to present the data from database rows as objects and embellish these data objects with business logic methods. You can read more about Active Record in link:files/vendor/rails/activerecord/README.html. The controller and view are handled by the Action Pack, which handles both layers by its two parts: Action View and Action Controller. These two layers are bundled in a single package due to their heavy interdependence. This is unlike the relationship between the Active Record and Action Pack that is much more separate. Each of these packages can be used independently outside of Rails. You can read more about Action Pack in link:files/vendor/rails/actionpack/README.html.
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Community Discussions
Trending Discussions on planet
QUESTION
I want to deploy hexo to github page:https://chenjuexu.github.io/
But it did not work like below:
$ hexo generate FATAL YAMLException: can not read a block mapping entry; a multiline key may not be an implicit key (107:18)
104 | deploy: 105 | type: git 106 | repo:https://github.com/chenjuexu/chenjuexu.gi ... 107 | branch:gh-pages ...ANSWER
Answered 2021-Jun-14 at 02:43Just cancel it because its version updated
QUESTION
I'm trying to create a regex expression for use with Notepad++ to look for a specific character anywhere in the line but not capture it while still capturing what I want to find later in the string.
A sample of what I'm looking at is this:
...ANSWER
Answered 2021-Jun-13 at 18:05You can use
QUESTION
I have searched a lot for this topic and already found some approach but I get some errors I can't find the reason of it.
Idea is to read the keys from the enum with QMetaEnum to fill the strings in a combobox later.
I have already the enum and also setup Q_Object and Q_Enum Macro in the class where the enum is. But I am getting "undefined reference to 'Planet:: metaObject() const'" error message by using the QMetaEnum.
Here is the planet.h
...ANSWER
Answered 2021-Jun-11 at 16:05Including QMetaEnum
and deriving from QObject usually does the trick:
QUESTION
why my code does not read my specified keys from my enum.
The code itself compiles fine and the program runs without any runtime errors.
Header file with the enum:
...ANSWER
Answered 2021-Jun-12 at 16:15You're missing an important thing:
QUESTION
I am trying to make a solar system using OpenGL for project. As I have other planets and moons too, I want to make my sun larger than radius=1, and my earth=1 since a little less than 0.18, the sphere is barely visible, and moons cannot be drawn with proper size difference.
Below is my code, if I try to make a sphere with radius > 1, it becomes donut (torus) like. Can anyone guide me on how to make spheres using gluSphere of radius > 1?
...ANSWER
Answered 2021-Jun-12 at 14:38The sphere is clipped by the near and far plane of the viewing volume (Orthographic projection). Use glOrtho
instead of gluOrtho2D
and increase the distance to the near and far plane:
gluOrtho2D(-5.0, 5.0, -5.0, 5.0);
QUESTION
so here is my problem ... I'm trying to implement a spinner inside my an alert dialog (in kotlin) the items are displayed just fine, but my main problem is i can't get the selected item, and when i use println insted of the toast, i get the following : "InputEventReceiver: Attempted to finish an input event but the input event receiver has already been disposed"
Here is the code of MainActivity
...ANSWER
Answered 2021-Jun-12 at 09:06Try with the following code.
QUESTION
I'd like to create a regex that would be able to grab everything up to and after DESCRIPTION, until the next TITLE: is found.
...ANSWER
Answered 2021-Jun-11 at 01:07/(?=TITLE: )/g
seems like a reasonable start. I'm not sure if the gutter of 2 characters whitespace is in your original text or not, but adding ^
or ^
to the front of the lookahead is nice to better avoid false-positives, i.e. /(?=^TITLE: )/mg
, /(?=^ TITLE: )/mg
or /(?=^ *TITLE: )/mg
.
QUESTION
I need to run an iOS App on different regions of the world to test how a streaming service perfoms from different points of the planet.
For that I noticed AWS provides EC2 Mac instances in some regions. The price of this Mac instances is quite expensive, so I would like to know first if it is possible to run an iOS App on an iOS simulator inside these EC2 instances.
Thanks!
...ANSWER
Answered 2021-Jun-09 at 23:15As I didn't find any answer about if it possible to run an iOS simulator on a EC2 Mac instance on AWS I tested it myself.
YES, it is possible. You can download Xcode and get the simulators as usual.
QUESTION
I have two tables look like this:
...ANSWER
Answered 2021-Jun-09 at 16:12You are looking for CROSS JOIN
:
QUESTION
I am new to React, I already have a list of movies in a dropdown but i am trying to fetch the name, age and height from this json data and display it, i am suppose to get all characters that appear in the movie(http://swapi.dev/api/films) and list the name, gender, and height: This is the character list from one of the films i fetched from the api
...ANSWER
Answered 2021-Jun-09 at 10:39this line of code get the error
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Install planet
At the command prompt, create a new Rails application: <tt>rails new myapp</tt> (where <tt>myapp</tt> is the application name)
Change directory to <tt>myapp</tt> and start the web server: <tt>cd myapp; rails server</tt> (run with --help for options)
Go to http://localhost:3000/ and you’ll see: "Welcome aboard: You’re riding Ruby on Rails!"
Follow the guidelines to start developing your application. You can find the following resources handy: The Getting Started Guide: http://guides.rubyonrails.org/getting_started.html Ruby on Rails Tutorial Book: http://www.railstutorial.org/
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