DOCSLIB.ORG

A Comparative Look at Entity Framework Code First Casey Griffin La Salle University, [email protected]

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Comparative Look at Entity Framework Code First Casey Griffin La Salle University, Griffinc4@Student.Lasalle.Edu La Salle University La Salle University Digital Commons Mathematics and Computer Science, Department Mathematics and Computer Science Capstones of Spring 5-17-2013 A Comparative Look at Entity Framework Code First Casey Griffin La Salle University, [email protected] Follow this and additional works at: http://digitalcommons.lasalle.edu/mathcompcapstones Part of the Databases and Information Systems Commons Recommended Citation Griffin,as C ey, "A Comparative Look at Entity Framework Code First" (2013). Mathematics and Computer Science Capstones. 11. http://digitalcommons.lasalle.edu/mathcompcapstones/11 This Thesis is brought to you for free and open access by the Mathematics and Computer Science, Department of at La Salle University Digital Commons. It has been accepted for inclusion in Mathematics and Computer Science Capstones by an authorized administrator of La Salle University Digital Commons. For more information, please contact [email protected]. A Comparative Look at Entity Framework Code First Submitted to the Department of Computer Information Science By: Casey Griffin Date: May 1, 2013 La Salle University MS Computer Information Science/MS Information Technology Leadership APPROVALS Agree to Advise: Stephen A. Longo, Ph.D. (Project Advisor) Date Submitted: May 1st, 2013 Approved by: Stephen A. Longo, Ph.D. (MS in CS Committee) Date Approved: May 3rd, 2013 1 La Salle University MS Computer Information Science/MS Information Technology Leadership Contents 1. Abstract ....................................................................................................................... 6 2. Introduction ................................................................................................................. 7 3. Background ............................................................................................................... 10 3.1 Microsoft .NET Framework and ADO.NET ...................................................... 10 3.2 Entity Framework ............................................................................................... 11 3.3 Conceptual Model .............................................................................................. 13 3.4 Development Workflows ................................................................................... 13 3.5 Code First Approach .......................................................................................... 15 3.5.1 Plan Old CLR Objects (POCO) Classes ..................................................... 15 3.5.2 DbContext API............................................................................................ 16 3.5.3 Code First Conventions............................................................................... 16 3.5.4 Data Annotations and the Fluent API ......................................................... 17 3.5.5 Code First Migrations ................................................................................. 18 4. Methodologies........................................................................................................... 20 4.1 Example: Griffin Drywall .................................................................................. 20 4.2 Business Requirements ...................................................................................... 21 4.3 EF Code First ..................................................................................................... 23 4.3.1 POCO Classes ............................................................................................. 23 4.3.2 DbContext API............................................................................................ 26 4.3.3 Code First Migrations ................................................................................. 26 4.4 The Website........................................................................................................ 27 4.4.1 Master Page ................................................................................................. 27 4.4.2 Home Page .................................................................................................. 28 4.4.3 Request Bid Pages....................................................................................... 29 4.4.4 Services Page .............................................................................................. 30 4.4.5 Project Pages ............................................................................................... 31 4.4.6 Contact Us Page .......................................................................................... 33 4.4.7 Account Management ................................................................................. 34 4.4.8 Admin Services ........................................................................................... 35 4.4.9 Subcontractor Page ..................................................................................... 35 5. Analysis..................................................................................................................... 37 5.1 Entity Framework Features ................................................................................ 37 2 La Salle University MS Computer Information Science/MS Information Technology Leadership 5.1.1 LINQ ........................................................................................................... 38 5.2 Code First Implementation ................................................................................. 41 5.2.1 POCO Classes ............................................................................................. 41 5.2.2 DbContext API............................................................................................ 45 5.2.3 Code First Migrations ................................................................................. 47 5.3 Traditional Approach Comparison ..................................................................... 49 5.3.1 Criticism ...................................................................................................... 50 5.3.2 Entity Framework Advantages ................................................................... 51 5.4 Griffin Drywall Development ............................................................................ 53 6. Conclusion ................................................................................................................ 59 6.1 Further Research ................................................................................................ 60 7. Appendix A ............................................................................................................... 62 7.1 Company ............................................................................................................ 62 7.2 GImage ............................................................................................................... 62 7.3 Job ...................................................................................................................... 63 7.4 Project................................................................................................................. 63 7.5 Request ............................................................................................................... 64 7.6 Service ................................................................................................................ 65 7.7 ServiceType ........................................................................................................ 66 7.8 Subcontractor ..................................................................................................... 66 7.9 Work ................................................................................................................... 67 7.10 WorkDetails .................................................................................................... 67 8. Appendix B ............................................................................................................... 69 8.1 GriffinContext DbContext.................................................................................. 69 9. Appendix C ............................................................................................................... 71 9.1 Initial Migration (First) ...................................................................................... 71 9.2 Add-ServiceType ............................................................................................... 72 9.3 Add-Request ....................................................................................................... 72 9.4 Add-Job .............................................................................................................. 74 9.5 Add-Subcon ........................................................................................................ 74 9.6 Add-Work........................................................................................................... 75 9.7 SubCon-Change ................................................................................................. 76 9.8 SubCon-Change2 ............................................................................................... 77 9.9 SubCon-Change3 ............................................................................................... 77 3 La Salle University MS Computer Information Science/MS Information Technology Leadership 9.10 SubCon-Change4 ...........................................................................................
Load more

Recommended publications
  • Laravel Create Schema from Database
    Laravel Create Schema From Database Littery and heteromorphic Rudolf diabolise his Auberon horse-collar crash buzzingly. Andrew stubbed lispingly as rubbery Erek sneezed her cognomens disforest doubtless. When Mathias quarrels his xerography enervating not frontward enough, is Rab Pickwickian? We unleash practically unlimited flexibility All generators now generate files for Laravel 5 Laravel 42 is. What is inserted into web application using administrator privileges to import wizard allows laravel from database schema from our case. Laravel create dynamic database. How this change tables structures with migration without losing. Tinyint equivalent column types are continuously updated during scrolling before, see an external tools that will insert some fake data in. In reality, Laravel can be used with any kind several database engines because check the underlying Eloquent ORM. Indicate that teaches us visualize at what does not include them you can mark users with caution when your production database, tables in order of. How grepper helps you from creating foreign key constraints on in development. This button an automatic process. Laravel Migration Generator helps you to generate laravel migration file from your. Unclaimed databases will have a length of course equally good. Before it lets us, so in isolation by hand over competing brands, saw this way is accessible, using this happens, consist of content from database schema state before actual smart media initiative and. In your tables as create laravel schema from database will. We can plenty of migrations as a version control system into database schema, which allows us to go track of changes made in regular database schema.
    [Show full text]
  • ASP.NET MVC with Entity Framework and CSS
    ASP.NET MVC with Entity Framework and CSS Lee Naylor ASP.NET MVC with Entity Framework and CSS Lee Naylor Newton-le-Willows, Merseyside United Kingdom ISBN-13 (pbk): 978-1-4842-2136-5 ISBN-13 (electronic): 978-1-4842-2137-2 DOI 10.1007/978-1-4842-2137-2 Library of Congress Control Number: 2016952810 Copyright © 2016 by Lee Naylor This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Trademarked names, logos, and images may appear in this book. Rather than use a trademark symbol with every occurrence of a trademarked name, logo, or image we use the names, logos, and images only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. While the advice and information in this book are believed to be true and accurate at the date of publication, neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions that may be made.
    [Show full text]
  • 3.2 Administrator Guides
    Elgg Documentation Release master Various Jan 23, 2020 Contents 1 Features 3 2 Examples 5 3 Continue Reading 7 i ii Elgg Documentation, Release master Elgg( pronunciation) is an open source rapid development framework for socially aware web applications. It is a great fit for building any app where users log in and share information. Contents 1 Elgg Documentation, Release master 2 Contents CHAPTER 1 Features • Well-documented core API that allows developers to kick start their new project with a simple learning curve • Composer is the package manager of choice that greatly simplifes installation and maintenance of Elgg core and plugins • Flexible system of hooks and events that allows plugins to extend and modify most aspects of application’s functionality and behavior • Extendable system of views that allows plugins to collaborate on application’s presentation layer and built out complex custom themes • Cacheable system of static assets that allows themes and plugins to serve images, stylesheets, fonts and scripts bypassing the engine • User authentication is powered by pluggable auth modules, which allow applications to implement custom authentication protocols • Security is ensured by built-in anti CSRF validation, strict XSS filters, HMAC signatures, latest cryptographic approaches to password hashing • Client-side API powered by asynchronous JavaScript modules via RequireJS and a build-in Ajax service for easy communication with the server • Flexible entity system that allows applications to prototype new types of content and user interactions
    [Show full text]
  • Release 1.13 Kal Ahmed, Graham Moore
    BrightstarDB Documentation Release 1.13 Kal Ahmed, Graham Moore January 08, 2016 Contents 1 Getting Started 1 1.1 Architect.................................................1 1.2 Data....................................................1 1.3 Developer.................................................1 2 Concepts 3 2.1 Architecture...............................................3 2.2 Data Model................................................4 2.3 Storage Features.............................................5 2.4 Client APIs................................................5 2.5 Supported RDF Syntaxes........................................5 3 Why BrightstarDB? 7 3.1 An Associative Model..........................................7 3.2 Schema-less Data Store.........................................7 3.3 A Semantic Data Model.........................................7 3.4 Automatic Data caching.........................................8 3.5 Full Historical Capabilities........................................8 3.6 Developer Friendly Toolset.......................................8 3.7 Native .NET Semantic Web Database..................................8 3.8 RDF is great for powering Object Oriented solutions..........................8 4 Developing With BrightstarDB9 5 Developer Quick Start 11 5.1 Create New Project............................................ 11 5.2 Create the Model............................................. 12 5.3 Generating the Context and Classes................................... 13 5.4 Using the Context...........................................
    [Show full text]
  • How to Use the Powerpoint Template
    Getting Started with Oracle and .NET Christian Shay Eric Courville Product Manager Senior Member of Technical Staff Oracle Verizon Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Oracle Confidential – Internal/Restricted/Highly Restricted Program Agenda 1 Oracle and Microsoft 2 Oracle and .NET – Getting Started 3 Oracle Developer Tools for Visual Studio 4 Oracle Data Provider for .NET 5 Additional Oracle .NET Features Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Oracle and Microsoft Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Oracle’s Commitment to .NET ODP ODT & ODAC 64-bit ODAC ODAC ODAC ODAC ODAC ODAC 12c ODAC 12c .NET .NET SP 2006 ODAC 2008 2009 11.2 R2 11.2 R4 11.2 R5 R1 & R2 R3 & R4 2002-03 2005 2006 2007 2007-08 2009 2010 2011 2012 2013 2014-15 .NET VS .NET 2.0 & .NET .NET 3.5 & .NET 4 & EF .NET 4.5 & VS 2013 & VS 2015, 1.x 2003 VS 2005 3.0 VS 2008 VS 2010 VS 2012 Managed NuGet & EF Code First Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Relationship with Microsoft • Close collaboration with Microsoft Engineering teams Engineering • Access to pre-release Microsoft product drops • Visual Studio Industry Partner (VSIP) • Event sponsorship – MS Ignite and Worldwide Partner Marketing Conference • Joint training, road shows, collateral, etc. • Microsoft Premier Support Agreement Support • Collaboration of support teams Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Oracle and .NET Getting Started Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | Oracle .NET Development Environment Oracle Developer Tools Oracle Data Provider Oracle Providers for for Visual Studio for .NET ASP.NET App Development Deploy Visual .NET Studio Framework Deploy Database Web or Development Client/Server Oracle Database Extensions for .NET Copyright © 2015, Oracle and/or its affiliates.
    [Show full text]
  • Python for the C# Developer
    {SDD} 2014 Software Design & Development Python for the C# developer Michael Kennedy @mkennedy http://blog.michaelckennedy.net Objectives • Introduce the basics of the Python language • Review what is awesome about C# and .NET • Explore Python's version of each C# / .NET feature DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net What is Python? • High-level programming language • Interpreted (sometimes JIT compiled) • Object-oriented (especially Python 3) • Strongly-typed with dynamic semantics • Syntax emphasizes readability • Supports modules and packages • Batteries included (large standard library [1]) DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net The ‘shape’ of a Python program • Python defines code blocks (known as suites in Python) using whitespace and colons. Things to note: def somemethod(name): • No semicolons if name == "Michael": print("Hi old friend") • Code blocks start with ‘:’ else: • Whitespace really really matters print("Nice to meet you") • There are no braces print("My name is … ") • There are no parentheses • Tabs are not your friend def main(): somemethod() Code suites DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net Python language demo DEVELOPMENTOR Michael Kennedy | @mkennedy | blog.michaelckennedy.net What's awesome about C# and .NET? System.Object: Everything is an object. LINQ IEnumerable + foreach loops Visual Studio / IDEs Class properties ( int Age {get; set;} ) Side-by-side execution (isolation) Anonymous types Iterator methods / yield return
    [Show full text]
  • Entity Framework Overview the Entity Framework Is a Set of Technologies in ADO.NET That Support the Development of Data-Oriented Software Applications
    Entity Framework Overview The Entity Framework is a set of technologies in ADO.NET that support the development of data-oriented software applications. Architects and developers of data-oriented applications have struggled with the need to achieve two very different objectives. They must model the entities, relationships, and logic of the business problems they are solving, and they must also work with the data engines used to store and retrieve the data. The data may span multiple storage systems, each with its own protocols; even applications that work with a single storage system must balance the requirements of the storage system against the requirements of writing efficient and maintainable application code. The Entity Framework enables developers to work with data in the form of domain-specific objects and properties, such as customers and customer addresses, without having to concern themselves with the underlying database tables and columns where this data is stored. With the Entity Framework, developers can work at a higher level of abstraction when they deal with data, and can create and maintain data-oriented applications with less code than in traditional applications. Because the Entity Framework is a component of the .NET Framework, Entity Framework applications can run on any computer on which the .NET Framework starting with version 3.5 SP1 is installed. The following sections in this topic provide more detail about the Entity Framework: Giving Life to Models Mapping Objects to Data Accessing and Changing Entity Data Data Providers Entity Data Model Tools Learning More Giving Life to Models A longstanding and common design approach when building an application or service is the division of the application or service into three parts: a domain model, a logical model, and a physical model.
    [Show full text]
  • Dotnet for Java Developers.Pdf
    EDITION 1.0 DOWNLOAD available at: https://aka.ms/dotnet-forjavadevs PUBLISHED BY DevDiv, .NET and Visual Studio product teams A division of Microsoft Corporation One Microsoft Way Redmond, Washington 98052-6399 Copyright © 2018 by Microsoft Corporation All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the written permission of the publisher. This book is provided “as-is” and expresses the author’s views and opinions. The views, opinions, and information expressed in this book, including URL and other Internet website references, may change without notice. Some examples depicted herein are provided for illustration only and are fictitious. No real association or connection is intended or should be inferred. Microsoft and the trademarks listed at http://www.microsoft.com on the “Trademarks” webpage are trademarks of the Microsoft group of companies. All other marks are property of their respective owners. .NET for Java Developers Prepared for Microsoft by Ted Neward, Principal, Neward & Associates, LLC Contents Introduction 1 History 3 Of components, managed environments, and code 3 Hello, .NET 5 Hello, strange new world 9 Getting Started: Tooling 10 Hello, web? 10 Docker all the things! 10 Linux .NET? 10 Visual Studio Code 11 Mac .NET? 12 Windows: Visual Studio 14 Hello, dotnet: CLI style 15 Hello, .NET: IDE style 16 Solutions and projects 18 Goodbye, HelloWorld 19 C#, Succinctly 20 C# Basics 20 Starting exploration: classes, properties, and methods 21 Lambdas, type inference, and extension classes 25 Language-INtegrated Query (LINQ) 27 Asynchronous programming with Async/Await 28 Frameworks, for the Win! 29 ASP.NET Core Web API 30 ASP.NET Core MVC 33 Entity Framework Core 35 Wrapping Up 39 iii Introduction When I was about eight years old, my parents took my sister and me to Paris, France.
    [Show full text]
  • Annals of the University of North Carolina Wilmington Master of Science in Computer Science and Information Systems
    Annals of the University of North Carolina Wilmington Master of Science in Computer Science and Information Systems RE-VISIONING OF THE AUTOMATIC GRADING/LEARNING SYSTEM Jason Felds A Capstone Project Submitted to the University of North Carolina Wilmington in Partial Fulfillment of the Requirements for the Degree of Master of Science Department of Computer Science Department of Information Systems and Operations Management University of North Carolina Wilmington 2012 Approved by Advisory Committee ______________________________ ______________________________ Dr. Bryan Reinicke Dr. Laurie Patterson ______________________________ ______________________________ Kevin Matthews Dr. Thomas Janicki, Chair Accepted By _______________________________ Dean, Graduate School Abstract Re-visioning of the Automatic Grading/Learning System. Felds, Jason, 2012. Capstone Paper, University of North Carolina Wilmington. In 2008, the ISOM department at UNCW implemented a system that would allow students in certain classes to be able to submit electronic files to be automatically graded as part of the existing grade book system. While that system has been successful, enhancements are desired to make the system more user-friendly and to grade additional features. A number of flaws have been uncovered with the Automatic Grading/Learning System (AGLS) that should be corrected. The goal of this project is to make it easier for the professor to create and grade assignments, but also to make the AGLS more generic so it may be used by other grade book systems.
    [Show full text]
  • Elgg Documentation Release Master
    Elgg Documentation Release master Various Sep 24, 2021 Contents 1 Features 3 2 Examples 5 3 Continue Reading 7 i ii Elgg Documentation, Release master Elgg( pronunciation) is an open source rapid development framework for socially aware web applications. It is a great fit for building any app where users log in and share information. Contents 1 Elgg Documentation, Release master 2 Contents CHAPTER 1 Features • Well-documented core API that allows developers to kick start their new project with a simple learning curve • Composer is the package manager of choice that greatly simplifes installation and maintenance of Elgg core and plugins • Flexible system of hooks and events that allows plugins to extend and modify most aspects of application’s functionality and behavior • Extendable system of views that allows plugins to collaborate on application’s presentation layer and built out complex custom themes • Cacheable system of static assets that allows themes and plugins to serve images, stylesheets, fonts and scripts bypassing the engine • User authentication is powered by pluggable auth modules, which allow applications to implement custom authentication protocols • Security is ensured by built-in anti CSRF validation, strict XSS filters, HMAC signatures, latest cryptographic approaches to password hashing • Client-side API powered by asynchronous JavaScript modules via RequireJS and a build-in Ajax service for easy communication with the server • Flexible entity system that allows applications to prototype new types of content and user interactions
    [Show full text]
  • Building an MVC 3 App with Code First and Entity Framework 4.1 Julie Lerman
    Building an MVC 3 App with Code First and Entity Framework 4.1 Julie Lerman March 2011 Watch a video of this content Download the code for this article: · C# version (VS2010) · VB version (VS2010) Microsoft’s ADO.NET Entity Framework (EF) simplifies data access by allowing you to avoid working directly with the database in your code. Instead you can retrieve data by writing queries against strongly typed classes letting the Entity Framework handle the database interaction on your behalf. EF can also persist changes back to the database for you. In addition to this benefit, you will also benefit from the EF’s comprehension of relationships. This means you will not be required to write extra code to specify joins between entities when expressing queries or simply working with your objects in memory. EF provides you with three ways to describe the model of your entities. You can begin with a legacy database to create a model. You can design a model in a designer. Or you can simply define classes and let EF work with those. This last tactic is referred to as code first, because the first thing you do is write code to describe your entities. In this whitepaper, I will walk you through creating a simple MVC 3 application using Entity Framework’s code first technology to describe your classes and manage all of your data access. Overview In this walkthrough you will build pieces of a blogging application. The walkthrough will not result in a fully functional blogging application, but instead it will use the blog classes to demonstrate code first’s features.
    [Show full text]
  • Time Efficient Data Migration Among Clouds
    Time Efficient Data Migration among Clouds Syeda Munazza Marium, Liaquat Ali Thebo, Syed Naveed Ahmed jaffari Muhammad Hunain Memon Computer System Engineering Department Mehran University of Engineering & Technology School of Information Science and Technology Sindh Pakistan University of Science and Technology of China, [email protected], Hefei, China [email protected], [email protected] [email protected] Abstract— Cloud computing is one of the chief requirements of [35].This researched focused on an issue called cloud migration. modern IT trade. Today’s cloud industry progressively dependent Transferring data from one cloud to another with efficiency and on it, which lead mutually abundant solutions and challenges. operational processing is aimed here. Proposed online lazy Among the numerous challenges of Cloud computing, cloud migration (OLM) algorithm and a randomized fixed horizon migration is one of the major concern, and it is necessity to design control (RFHC) algorithm as a solution for cost-minimization optimize solutions to advance it with time. Data migration researchers attempt to move data concerning varying problem in data migration [31]. This work is dedicated to key geographical locations, which contain huge data volumes, compact challenges emerged when dealing with Iaas Infrastructure as a time limit and problematical architectures. Researchers aim to service and networking architecture of cloud like Software- transfer data with minimal transmission cost and used various defined networking (SDN) and other architectures [29]. In this efficient scheduling methods and other techniques to achieve this paper author investigates mobile cloud architecture and present objective. In former research struggles, numerous solutions have critical analysis over application model classification, decision proposed.
    [Show full text]