Warehouse Management System in Ruby on Rails Framework on Cloud Computing Architecture
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Bakalářská Práce
TECHNICKÁ UNIVERZITA V LIBERCI Fakulta mechatroniky, informatiky a mezioborových studií BAKALÁŘSKÁ PRÁCE Liberec 2013 Jaroslav Jakoubě Příloha A TECHNICKÁ UNIVERZITA V LIBERCI Fakulta mechatroniky, informatiky a mezioborových studií Studijní program: B2646 – Informační technologie Studijní obor: 1802R007 – Informační technologie Srovnání databázových knihoven v PHP Benchmark of database libraries for PHP Bakalářská práce Autor: Jaroslav Jakoubě Vedoucí práce: Mgr. Jiří Vraný, Ph.D. V Liberci 15. 5. 2013 Prohlášení Byl(a) jsem seznámen(a) s tím, že na mou bakalářskou práci se plně vztahuje zákon č. 121/2000 Sb., o právu autorském, zejména § 60 – školní dílo. Beru na vědomí, že Technická univerzita v Liberci (TUL) nezasahuje do mých autorských práv užitím mé bakalářské práce pro vnitřní potřebu TUL. Užiji-li bakalářskou práci nebo poskytnu-li licenci k jejímu využití, jsem si vědom povinnosti informovat o této skutečnosti TUL; v tomto případě má TUL právo ode mne požadovat úhradu nákladů, které vynaložila na vytvoření díla, až do jejich skutečné výše. Bakalářskou práci jsem vypracoval(a) samostatně s použitím uvedené literatury a na základě konzultací s vedoucím bakalářské práce a konzultantem. Datum Podpis 3 Abstrakt Česká verze: Tato bakalářská práce se zabývá srovnávacím testem webových aplikací psaných v programovacím skriptovacím jazyce PHP, které využívají různé knihovny pro komunikaci s databází. Hlavní důraz při hodnocení výsledků byl kladen na rychlost odezvy při zasílání jednotlivých požadavků. V rámci řešení byly zjišťovány dostupné metodiky určené na porovnávání těchto projektů. Byl také proveden průzkum zjišťující, které frameworky jsou nejvíce používané. Klíčová slova: Testování, PHP, webové aplikace, framework, knihovny English version: This bachelor’s thesis is focused on benchmarking of the PHP frameworks and their database libraries used for creating web applications. -
Modern Web Application Frameworks
MASARYKOVA UNIVERZITA FAKULTA INFORMATIKY Û¡¢£¤¥¦§¨ª«¬Æ°±²³´µ·¸¹º»¼½¾¿Ý Modern Web Application Frameworks MASTER’S THESIS Bc. Jan Pater Brno, autumn 2015 Declaration Hereby I declare, that this paper is my original authorial work, which I have worked out by my own. All sources, references and literature used or ex- cerpted during elaboration of this work are properly cited and listed in complete reference to the due source. Bc. Jan Pater Advisor: doc. RNDr. Petr Sojka, Ph.D. i Abstract The aim of this paper was the analysis of major web application frameworks and the design and implementation of applications for website content ma- nagement of Laboratory of Multimedia Electronic Applications and Film festival organized by Faculty of Informatics. The paper introduces readers into web application development problematic and focuses on characte- ristics and specifics of ten selected modern web application frameworks, which were described and compared on the basis of relevant criteria. Practi- cal part of the paper includes the selection of a suitable framework for im- plementation of both applications and describes their design, development process and deployment within the laboratory. ii Keywords Web application, Framework, PHP,Java, Ruby, Python, Laravel, Nette, Phal- con, Rails, Padrino, Django, Flask, Grails, Vaadin, Play, LEMMA, Film fes- tival iii Acknowledgement I would like to show my gratitude to my supervisor doc. RNDr. Petr So- jka, Ph.D. for his advice and comments on this thesis as well as to RNDr. Lukáš Hejtmánek, Ph.D. for his assistance with application deployment and server setup. Many thanks also go to OndˇrejTom for his valuable help and advice during application development. -
Managing Data Constraints in Database-Backed Web Applications
Managing data constraints in database-backed web applications Junwen Yang Utsav Sethi Cong Yan University of Chicago, USA University of Chicago, USA University of Washington, USA [email protected] [email protected] [email protected] Alvin Cheung Shan Lu University of California, Berkeley University of Chicago, USA USA [email protected] [email protected] ABSTRACT Database-backed web applications manipulate large amounts of … <input value=‘title’ pattern=‘.+’ title=‘invalid title’/> persistent data, and such applications often contain constraints … that restrict data length, data value, and other data properties. Such constraints are critical in ensuring the reliability and usability of Field Type Null Default … these applications. In this paper, we present a comprehensive study on where data constraints are expressed, what they are about, how title varchar(30) NO NULL … often they evolve, and how their violations are handled. The re- sults show that developers struggle with maintaining consistent … data constraints and checking them across different components validates_length_of : title, maximum: 60, message: ‘title is too long’ Mysql::Error and versions of their web applications, leading to various prob- … lems. Guided by our study, we developed checking tools and API enhancements that can automatically detect such problems and Figure 1: Crossstack data constraints improve the quality of such applications. 1 INTRODUCTION 60 characters)” error; finally, she tried a title a little shorter than60 1.1 Motivation characters, but the web page then crashed with all the filled content Constraints are often associated with data used in software. These lost with some unreadable database error displayed. range from describing the expected length, value, uniqueness, and It turned out that different constraints were specified for the other properties of the stored data. -
AN INTRODUCTION by Enrique Canals / @Ecanals ENRIQUE CANALS
THE BEAUTY OF CSS PRE-PROCESSORS: AN INTRODUCTION by Enrique Canals / @ecanals ENRIQUE CANALS Software Developer @ The Hybrid Group Currently working with Sphero, creating cool things for connecting robots to the internet Worked on several interesting web projects with Pebble Current maintainer of the TextMate SCSS Bundle for syntax highlighting with support for Atom and Sublime @ecanals | www.enriquecanals.com WHAT WE'RE GOING TO COVER IN THIS SESSION PART 1 CSS basics and shortcomings What are CSS pre-processors How pre-processors work and don't work PART 2 Which one do I use? (Sass, Less, Stylus) Workflow Integration Using pre-processors in WordPress theme development PART 1 CSS BASICS AND SHORTCOMINGS BASIC CSS SYNTAX This is the CSS you're used to. html, body { width: 100%; height: 100%; overflow: hidden; } body { background-color: #fff; color: #000; line-height: 1; position: relative; } Simple enough. NOW SOMETHING A LITTLE MORE COMPLEX: .reveal.slide section, .reveal.linear section { -webkit-backface-visibility: hidden; backface-visibility: hidden; } .reveal .slides > section[data-transition=slide].past, .reveal.slide .slides > section:not([data-transition] -webkit-transform: translate(-150%, 0); -ms-transform: translate(-150%, 0); transform: translate(-150%, 0); } .reveal .slides > section[data-transition=slide].future, .reveal.slide .slides > section:not([data-transition] -webkit-transform: translate(150%, 0); -ms-transform: translate(150%, 0); transform: translate(150%, 0); } .reveal .slides > section > section[data-transition=slide].past, .reveal.slide .slides > section > section -webkit-transform: translate(0, -150%); -ms-transform: translate(0, -150%); transform: translate(0, -150%); } .reveal .slides > section > section[data-transition=slide].future, .reveal.slide .slides > section > section -webkit-transform: translate(0, 150%); -ms-transform: translate(0, 150%); transform: translate(0, 150%); } You can see how this get's ugly fast. -
Appendix a the Ten Commandments for Websites
Appendix A The Ten Commandments for Websites Welcome to the appendixes! At this stage in your learning, you should have all the basic skills you require to build a high-quality website with insightful consideration given to aspects such as accessibility, search engine optimization, usability, and all the other concepts that web designers and developers think about on a daily basis. Hopefully with all the different elements covered in this book, you now have a solid understanding as to what goes into building a website (much more than code!). The main thing you should take from this book is that you don’t need to be an expert at everything but ensuring that you take the time to notice what’s out there and deciding what will best help your site are among the most important elements of the process. As you leave this book and go on to updating your website over time and perhaps learning new skills, always remember to be brave, take risks (through trial and error), and never feel that things are getting too hard. If you choose to learn skills that were only briefly mentioned in this book, like scripting, or to get involved in using content management systems and web software, go at a pace that you feel comfortable with. With that in mind, let’s go over the 10 most important messages I would personally recommend. After that, I’ll give you some useful resources like important websites for people learning to create for the Internet and handy software. Advice is something many professional designers and developers give out in spades after learning some harsh lessons from what their own bitter experiences. -
Laravel - My First Framework Companion for Developers Discovering Laravel PHP Framework
Laravel - my first framework Companion for developers discovering Laravel PHP framework Maksim Surguy This book is for sale at http://leanpub.com/laravel-first-framework This version was published on 2014-09-05 This is a Leanpub book. Leanpub empowers authors and publishers with the Lean Publishing process. Lean Publishing is the act of publishing an in-progress ebook using lightweight tools and many iterations to get reader feedback, pivot until you have the right book and build traction once you do. ©2014 Maksim Surguy Tweet This Book! Please help Maksim Surguy by spreading the word about this book on Twitter! The suggested hashtag for this book is #laravelfirst. Find out what other people are saying about the book by clicking on this link to search for this hashtag on Twitter: https://twitter.com/search?q=#laravelfirst Also By Maksim Surguy Integrating Front end Components with Web Applications Contents Introduction ................................................. i About the author ............................................. i Prerequisites ................................................ ii Source Code ................................................ ii 1. Meeting Laravel ............................................. 1 1.1 Introducing Laravel 4 PHP framework .............................. 1 1.1.1 Laravel’s Expressive code .................................. 2 1.1.2 Laravel applications use Model-View-Controller pattern ................. 3 1.1.3 Laravel was built by a great community .......................... 3 1.2 History of Laravel framework ................................... 4 1.2.1 State of PHP frameworks world before Laravel 4 ..................... 4 1.2.2 Evolution of Laravel framework .............................. 4 1.3 Advantages of Using Laravel ................................... 5 1.3.1 Convention over configuration ............................... 5 1.3.2 Ready out of the box .................................... 6 1.3.3 Clear organization of all parts of the application .................... -
Ruby Best Practices.Pdf
Ruby Best Practices Ruby Best Practices Gregory Brown foreword by Yukihiro “Matz” Matsumoto Beijing • Cambridge • Farnham • Köln • Sebastopol • Taipei • Tokyo Ruby Best Practices by Gregory Brown Copyright © 2009 Gregory Brown. All rights reserved. Printed in the United States of America. Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472. O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are also available for most titles (http://my.safaribooksonline.com). For more information, contact our corporate/institutional sales department: 800-998-9938 or [email protected]. Editor: Mike Loukides Indexer: Ellen Troutman Zaig Production Editor: Sarah Schneider Cover Designer: Karen Montgomery Copyeditor: Nancy Kotary Interior Designer: David Futato Proofreader: Sada Preisch Illustrator: Robert Romano Printing History: June 2009: First Edition. O’Reilly and the O’Reilly logo are registered trademarks of O’Reilly Media, Inc. Ruby Best Practices, the image of a green crab, and related trade dress are trademarks of O’Reilly Media, Inc. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and O’Reilly Media, Inc. was aware of a trademark claim, the designations have been printed in caps or initial caps. While every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omissions, or for damages resulting from the use of the information con- tained herein. In March 2010, this work will be released under the Creative Commons Attribution- Noncommercial-Share Alike 3.0 License. -
View-Centric Performance Optimization for Database-Backed Web Applications
View-Centric Performance Optimization for Database-Backed Web Applications Junwen Yang1, Cong Yan2, Chengcheng Wan1, Shan Lu1, Alvin Cheung2 1University of Chicago, junwen, cwan, [email protected] 2University of Washington, congy, [email protected] Abstract—Web developers face the stringent task of designing … informative web pages while keeping the page-load time low. <p> … This task has become increasingly challenging as most web <%= @active_projects … > contents are now generated by processing ever-growing amount … </p> of user data stored in back-end databases. It is difficult for developers to understand the cost of generating every web-page … element, not to mention explore and pick the web design with @active_projects = user.projects.active the best trade-off between performance and functionality. In this … paper, we present Panorama, a view-centric and database-aware development environment for web developers. Using database- aware program analysis and novel IDE design, Panorama pro- Fig. 1: Performance understanding challenge vides developers with intuitive information about the cost and the performance-enhancing opportunities behind every HTML file sidebar.html.erb, which produces this sidebar, renders element, as well as suggesting various global code refactorings these projects based on a Ruby variable @active projects that enable developers to easily explore a wide spectrum of embedded in the HTML file; this variable is computed performance and functionality trade-offs. in a controller Ruby file todos controller.rb through a seemingly straightforward assignment @active projects = I. INTRODUCTION user.projects.active. It turns out that this code actually A. Motivation retrieves objects stored in a database, and is translated into High-quality web applications need to provide both good a SQL query by the Rails framework at run time. -
Web Technology Competency Object GFT Website – New Look Re-Launched
Web Technology Competency object GFT Website – new look re-launched Technology: Java An interactive web portal developed using the Day Communiqué Content Management system to facilitate easy means of content administration and publishing by the content authors. § The project involves providing a reliable means of implementing the teaser logic, internationalization, user management from the content authors’ and end users’ perspective and easy storage and retrieval of media content. § The solution is browser based and available over the internet to all users world wide in addition to the company partners. § Technologies: Java, JSP, ESP, HTML, CSS, JQuery, MySQL Chola Serviced Appartment Technology: WordPress Chola offers first and finest apartments in Trichy with quality service. By developing the side for them, we used a trusted combination out of HTML5/CSS3/JQuery/PHP and WordPress. Technology Used: WordPress Client: Chola Serviced Apartment Technologies: Java, JSP, ESP, HTML, CSS, JQuery, MySQL Panacea– Tec Technology: Java Gluco-meter or Pressure meter readings transferred to Mobile device (Android) via bluetooth. n Panacea-Tec mobile app reads those data and sends to central database using java web service. n User can view the report, reading details using Panacea-Tec web application. n User can manage the reading, caregivers / Professional caregivers, profile and lifestyle. n Technologies: Java, Spring, Hybernate, PostGresSql, HTML, Twitter bootstarp GFT GFGFT T Website – new look re-launched Website – new look re-launched Technology: Java Technology: Java Gluco-meter or Pressure meter readings transferred to Mobile device (Android) via bluetooth. n Panacea-Tec mobile app reads those data and sends to central database using java web service. -
Mobile Site Rewrite
Mobile Site Rewrite Patrick Reilly — Senior Developer Mobile Wikimedia Foundation Current implementation ● Ruby based mobile gateway utilizing Merb Process: ● A request comes in from a mobile browser ● The request generates a Device object in merb/extensions/request_extension.rb ● The Device object picks a format in Device#format_name ● Any method_missing that Device receives is looked up in the format specification ● The formats are specified in config/formats.yml ● An Article is fetched for that device ● First, the article figures out what kind of parser needed to be run on the page It then generates a key with that parser type. ● It then checks to see if that has been cached ● If it is not cached, it grabs scrapes the Wikipedia page and processes it with some /app/models/parsers/* class ● If it is cached, it returns that cached object ● The layout is generated with the returned Article#html ● The device format is used heavily here (aka, "= current_device.stylesheet_name") ● An "app/views/layouts/search#{format}.html.haml" file is rendered in the search area ● Changes in the search box and CSS fields are the biggest difference between formats Mobile site rewritten in PHP ● Having the site in Ruby causes a number of headaches (for code review, code deployment, and server maintenance) given Wikimedia's mostly PHP-based infrastructure. Rewrite rationale ● Puts the code in our code repo rather than on github ● Easier to review code in a language that most Wikimedia/MediaWiki developers are already using (PHP, instead of Ruby) ● Easier on -
Absolvování Individuální Odborné Praxe Individual Professional Practice in the Company
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DSpace at VSB Technical University of Ostrava 1 VŠB – Technická univerzita Ostrava Fakulta elektrotechniky a informatiky Katedra informatiky Absolvování individuální odborné praxe Individual Professional Practice in the Company 2011 Marcel Hlavina 2 Prohlašuji, že jsem tuto bakalářskou práci vypracoval samostatně. Uvedl jsem všechny literární prameny a publikace, ze kterých jsem čerpal. V Ostravě 5. května 2011 . 3 Děkuji Fakultě elektrotechniky a informatiky Vysoké školy Báňské – Technické univerzity Ostrava, že mi umožnila absolvování bakalářské praxe ve firmě. Dále děkuji firmě Webdevel s.r.o., že jsem mohl odbornou praxi vykonávat právě u této firmy. 4 Abstrakt Tato práce popisuje odbornou praxi ve firmě Webdevel s.r.o., kterou jsem vykonával na pozici Developer. V rámci této odborné praxe jsem provedl analýzu systému PictureUp pro nahrávání, prohlížení a archivaci obrázků. Dále jsem v rámci odborné praxe navrhl zlepšení systému PictureUp, převedl původní data do upgradeované verze a vytvořil administrační rozhraní a doplňkové analytické funkce. Klíčová slova: PictureUp, Kohana, informační systém, databáze, administrační rozhraní, framework, wireframe, Webdevel s.r.o. Abstract This thesis describes professional practice in the company Webdevel s.r.o., which I performed on the Developer position.Within this professional practice, I analyzed PictureUp system for recording, viewing and archiving files. Then I suggested within professional practice -
Brno University of Technology a Converter
BRNO UNIVERSITY OF TECHNOLOGY VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ FACULTY OF INFORMATION TECHNOLOGY DEPARTMENT OF INTELLIGENT SYSTEMS FAKULTA INFORMAČNÍCH TECHNOLOGIÍ ÚSTAV INTELIGENTNÍCH SYSTÉMŮ A CONVERTER BETWEEN THE LESS AND SASS STYLESHEET FORMATS PŘEKLADAČ MEZI FORMÁTY LESS A SASS BACHELOR’S THESIS BAKALÁŘSKÁ PRÁCE AUTHOR ATTILA VEČEREK AUTOR PRÁCE SUPERVISOR Prof. Ing. TOMÁŠ VOJNAR, Ph.D. VEDOUCÍ PRÁCE BRNO 2016 Abstract The aim of this thesis is to research the differences between the CSS preprocessor languages, namely Less and Sass, and find applicable transformation methods to implement a converter between their dynamic stylesheet formats. A general introduction to the concept of CSS preprocessors is provided first, which is followed by a thorough description of the Lessand Sass language features. In addition to this, all the discovered differences are stated and illustrative examples of the invented conversion methods are provided in this work. This is followed by the description of the design and implementation of the proposed converter. As a part of the contribution of this thesis, a CSS comparison tool based on abstract syntax tree transformation has also been developed. Its design is described along the testing procedure used to verify the invented conversion methods. The last part of the work summerizes the achieved results and the future directions of the converter. Abstrakt Cílem této bakalářské práce je výzkum rozdílů mezi CSS preprocesorovými jazyky, jmen- ovitě Less a Sass, a nalezení použitelných transormačních metod k implementaci překladače mezi jejich formáty. Nejprve je předložen koncept CSS preprocesorů a následuje detailní popis vlastností jazyků Less a Sass. V této práci jsou uvedené všechny zjištěné rozdíly, a pak jsou představeny nové konverzní metody s demonstrativními příklady.