Option for Cascade Delete for References or On Delete
In Rails 4.2, when creating a table or adding a reference via references or add_reference how do you specify that the foreign key should cascade on delete. Command to generate scaffold: rails g scaffold Child parent:references name:string Resulting migration: create_table :childs do |t| t.references :parent, index: true, foreign_key: true t.string :name t.timestamps null: false end
node.js - webpack command not working - Stack Overflow
I am new to Node Js and Webpack. I tried to start a project with module-loaders. Firstly, I installed nodeJs and NPM and created a new directory called tutorial. I used the command prompt to cd into this directory and then ran the following command npm init and then installed webpack via npm using the command below : npm install -S webpack The 1st command installed webpack locally into the project
simple form - Is there a way to pass params when clicking submit button in simple_form view in rails 3.2.12? - Stack Overflow
In simple_form view, the submit button is like this: <%= f.button :submit, 'Save' %> We are trying to pass a params subaction when clicking the Save button. The params[:subaction] should have value of 'update' after clicking the button. Here is what we tried in view but it did not work: <%= f.button :submit, 'Save', :subaction => 'update' %> Is there a way to pass a value in params[:subaction] whe
Modify ruby hash in place( rails strong params)
This may be more a ruby question then rails question but I'm pretty sure I was able to do this in a vanilla ruby application. I have strong params defined. def trip_params params.require(:trip).permit(:name, :date) end Now I get those params in a controller method. I want to do this. def save trip_params[:name] = 'Modifying name in place' #trip_params[:name] still equals original value passed end
Simulating MySQL's ORDER BY FIELD() in Postgresql
Just trying out PostgreSQL for the first time, coming from MySQL. In our Rails application we have a couple of locations with SQL like so: SELECT * FROM `currency_codes` ORDER BY FIELD(code, 'GBP', 'EUR', 'BBD', 'AUD', 'CAD', 'USD') DESC, name ASC It didn't take long to discover that this is not supported/allowed in PostgreSQL. Does anyone know how to simulate this behaviour in PostgreSQL or do we
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