Enabling jQuery to Lookup in Simple Page (in console)

Assuming the loaded page is simple page like the apache directory list as known as "index of /..."
No jquery is there, just the core javascript by browser

Loading jQuery:

var s = document.createElement('script');
s.setAttribute('src', 'http://code.jquery.com/jquery-latest.min.js');
document.body.appendChild(s)

Now using jquery to do your stuff like finding the links

var links = $('a[href*="1080"]')
for(var i = 0; i < links.length; i++) {
  if(links[i].href.indexOf('x265') > 0)
    console.log(links[i].href);
}

Handling One or Multiple Selection in Grails

Scenario:
We have a select in the form with id="book".
The user may choose none, 1 or multiple in select and submit the form.
There is an each loop in the controller/service to process each user.

What happen:
For each selected book in the select one book=N parameter is posted to the controller.

Grails controller which creates params automatically brings a little intelligence and convert the params to a list if there are multiple instances of that parameters, so in the case of multiple book selection the params will be something like this:

params.book = [ N, M, ...]
It is great and we can loop on it and do the operation on each of them.

But..., if just one user is selected, the there will be no list by default and the param contains just a simple string

params.book = "N"

The bad:

• The loop is not failed, it is a string and loop iterate over each char of the string
• In the development and simple test cases, it works perfectly. For example, if it is the id like 5, then it is just a char same as the original. But if the id grows and become something like "58", then your loop process object id 5 and 8.

Solution:

Use params.list method to create a list for that parameter, even if it is single.

def bookIds = params.list("book")

Add to Local Maven Repo, then use it Gradle

Install downloaded jar file (here sqlserver jdbc driver) in local maven repository

mvn install:install-file -Dfile=sqljdbc41.jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.1 -Dpackaging=jar

In gradle file add mavenLocal() and use the lib as normal maven dependency.

Rails Regenerate Scaffolding Views

rails g erb:scaffold ModelName

The scaffolds can be customized by copying originals to lib/templates/erb/scaffold/templates


The original templates and generators can be found in railties gem directory like

lib\ruby\gems\2.2.0\gems\railties-5.0.0.1\lib\rails\generators

Workaround for Ruby SSL Certificate Issue

The good and complete root certificates can be found at curl site here.

For gem download issue it should be placed in rubygems SSL certificate directory like the following path:

C:\Programs\Ruby22-x64\lib\ruby\site_ruby\2.2.0\rubygems\ssl_certs

For ruby, the root cert file path should be set in environment variable SSL_CERT_FILE like

SSL_CERT_FILE=C:\Programs\Ruby22-x64\lib\ruby\site_ruby\2.2.0\rubygems\ssl_certs\cacert.pem rails new testapp -m https://raw.github.com/RailsApps/rails-composer/master/composer.rb

ref: https://gist.github.com/fnichol/867550

Add Base URLs to Grails Page and Scripts

Sometimes we are note sure about final deployment context root address, so the root of the application can be something like mydomain.com/ or mydomain/myapp/ .

Grails or most of the other web app frameworks handle the link creation for such situation with some link facility in pages, but the problem is links in JavaScript, like base url for ajax call or resource loaders.

One possible solution is finding the base urls using the same facility of the framework and set them in global javascript variables.

The best location to add them and complying DRY is the layout page, where all pages have access.

The following is a sample for grails framework to have the url of the root of the app and the assets as well.

window.grails = {
    baseUrl: '${raw(g.createLink(absolute:true, uri:"/"))}'
    assetsUrl : '${ raw(asset.assetPath(src: '')) }',
};

It can be used like this:

$.ajax({
    type: 'GET',
    url: window.grails.baseUrl + 'controller/show/' + id +'.json',
    contentType: 'application/json',
    success: function( data, textStatus, jqXHR )
    {
    },
    error: function( jqXHR, textStatus, errorThrown )
    {
    }
});

First Swagger

Start by editing sample or own simple one

http://editor.swagger.io/

Generate client or server code online in editor or get more customizable package by online generator

curl -X POST -H "content-type:application/json" -d '{"options": {"packageName": "rira_api"},"swaggerUrl":"https://raw.githubusercontent.com/omidmt/rira/0.7.x/api/swagger-api.yaml"}' http://generator.swagger.io/api/gen/clients/python

Response:

{"code":"55b0eb81-87ba-48ff-91f5-3a4444a95462","link":"https://generator.swagger.io/api/gen/download/55b0eb81-87ba-48ff-91f5-3a4444a95462

Sample security definition by 2 ways of using it for client (query/header)

securityDefinitions:
  apikeyHeader:
    type: apiKey
    name: apiKey
    in: header
  apikeyQuery:
    type: apiKey
    name: apiKey
    in: query
security:
  - apikeyHeader: []
  - apikeyQuery: []

[] means apply to all operations, but different definition can be applied per path/operation as well.

Enabe debug mode:

rira_api.configuration.debug = True