Ruby Notes

nick34992 of Markdown

2/2/2017 - 7:24 AM

Ruby notes

Websites typically generate dynamic web pages. As they dynamically combine static web page content with information from a database while Ruby methods are in progress.
Data retrieval: a user obtains structured data from a database management system by making a query into a database. An information retrieval query language involves weighted terms, ranking, relevance, etc. Additional Ruby methods might insert, update or delete data. To customize data per user. So each user could conceivably receive a slightly different web page. Or slightly varied content per visit. Or per various queries during the same visit.
Ruby assembles the hypertext markup, stylesheets and JavaScript syntax of a dynamic web page--while in progress--from component files or database data.
An application server is programmed to generate dynamic web applications.
Ruby on Rails is a web application framework, a model-view-controller, a software library or gem collection, as well as a working set of coding conventions for building web apps.
Rails maintains the principle of separation of concerns, keeping code for database access segregated from page display code.
JSON and XML are used for data transfer. HTML, CSS and JavaScript for rendering display and user interface.
Partials: small files included on every page, e.g. static page footer information.
gem: open-source Ruby code package shared with other developers.
RubyGems: package manager for gem distribution.