Rails Create Error

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Structural design analysis of anatomical twitter:twitter system

With the explosion of information, micro-blogging website Twitter was born. It is no exaggeration to describe Twitter's growth with the word "born". Twitter has grown from 0 to 66,000 since May 2006, when the number of Twitter users rose to 1.5 in December 2007. Another year, December 2008, Twitter's number of users reached 5 million. [1] The success of Twitter is a prerequisite for the ability to provide services to tens of millions of users at the same time and to deliver services faster. [2,3,4 ...

Taking stock of 17 typical business cases

Recently, foreign media recently made a stock count of the failure and revival of the start-up company. Selected 17 typical cases, for aspiring entrepreneurs to provide from corporate finance to entrepreneurial personal feelings to the public relations crisis and other aspects of experience and lessons, it is worth the entrepreneurs to learn from each other, in their own entrepreneurial way to go more smoothly. 1, WPMU Dev WPMU Dev is a has won the jackpot of WordPress plug-in development company, has launched for WordPress, multisite, buddypres ...

17 Entrepreneurial lessons: Keep innovation and stick to it

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall "Sohu It News" August 2 News, foreign media recently made an inventory of the failure and revival of startups, selected 17 typical cases, and provided the experience and lessons from corporate finance to entrepreneurial personal sentiment to public relations crisis. 1, WPMU Dev WPMU Dev is a has won the award of WordPress Plug-in Development company, has launched a ...

11 collection jQuery plugin to collect the usual collection, very good very powerful

JQuery Form Validation Plugin jQuery Form Validation Plugin is an excellent jQuery plugin that validates client forms and offers many customizable properties and methods with good scalability and maximum usage A form validation method. After verification of different projects worldwide, and won the praise of many Web developers. jQuery -...

Cloud Computing Guide: Management, architecture, security, networking, and services

One, the charm of the management of cloud computing is that users can start using their ID card and credit card, but that's the problem. Such a simple service is bound to bring many challenges to the unprepared IT department.   We've been through this many times before: the benefits of a technology that are easy to use end up being an unexpected management challenge, such as virtualization, which causes virtual machines to become fragmented, new security risks to smartphones, and instant messaging that triggers corporate governance problems. This article is intended to show IT managers how to maximize cloud computing ...

Open source code management: How to safely use open source libraries and frameworks?

When developing internal and external applications, organizations are increasingly using open source code-which is reasonable. Using free pre-built components rather than writing your own code can significantly shorten application development time and improve the probability of software development success.   When developing applications, the development team can easily use hundreds of more open source libraries, frameworks and tools, and countless code from the Internet. However, open source code is risky-even the most widely recognized code base. No one can guarantee that the open source code will not have a bug, nor guarantee it in the development process with the enterprise should ...

The architecture design of depth analysis Cloudfoundry

VMware suddenly released its first open source Paas--cloudfoundry this April. In the months since its release, the author has been concerned about its evolution and benefited from its architectural design, and felt the need to write to share it with you. This article will be divided into two parts: the first part mainly introduces the architecture design of Cloudfoundry, from the module that it contains, to the information flow of each part, how the modules coordinate and cooperate; The second part will be based on the first part, how to use Clou in your data center ...

Take you to the IBM Bluemix platform Cloud

It is based on this trend that IBM released its own public cloud products, the product name is IBM Bluemix, is currently in the open testing phase. Bluemix is built on the Apache Open source project Cloud Foundry, and provides the quality service (services) developed by IBM and its partners for use by IT practitioners. This article takes the core component of Bluemix platform-Bluemix Java Runtime as the main line, to introduce to the reader IBM public ...

How to grow a Web2.0 company

Intermediary transaction SEO troubleshooting Taobao guest owners buy Cloud host technology Hall A typical Web 2.0 application can reach version 1.0-Mature phase sixth, and has the potential to reach phase seventh.     Most applications stop at phase fourth, and for China's Web 2.0, apps remain in two or three phases, although we hear positive news about companies exposing APIs. 1. Idea: All ...

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