Search Results

Search found 41789 results on 1672 pages for 'software development'.

Page 218/1672 | < Previous Page | 214 215 216 217 218 219 220 221 222 223 224 225  | Next Page >

• Should a primary key be immutable?

  - by Vincent Malgrat

  A recent question on stackoverflow provoked a discussion about the immutability of primary keys. I had thought that it was a kind of rule that primary keys should be immutable. If there is a chance that some day a primary key would be updated, I thought you should use a surrogate key. However it is not in the SQL standard and some RDBMS' "cascade update" feature allows a primary key to change. So my question is: is it still a bad practice to have a primary key that may change ? What are the cons, if any, of having a mutable primary key ?

  Read the article

• How to organize my site's file system properly?

  - by Wolfpack'08

  Doing some reading on Stack Overflow, I've found a lot of information suggesting that proper organization of a file system is crucial to a well-written web app. One of the key pieces of evidence is high-frequency references to "separation of concerns" in questions related to keeping programs organized. Now, I've found some information on organizing file systems (Filesystem Hierarchy Standard) from 2004. It raises only two concerns: first, the standard's a bit dated, so I believe it may be possible to do better given the changes in technology over the past 8 years; second, and most important, my application is very small compared to an entire Linux distro. I think that the file system should be organized very differently because of that. Here's what I'm looking at, currently: /scripts, /databases, /www -> /dev, /production -> login, router, admin pages, /sites -> content types, static pages /modules, /includes, /css, /media -> /module-specific-media

  Read the article

• Java to PHP job change [closed]

  - by Yan

  I've been working with java my entire career(8 years), web servers mostly. And there is a possibility for me to start working in environment that is generally PHP based. I've never worked with PHP before except that I wrote a simple send mail html form once or twice. Is there any benefit in learning a PHP stack or this will be a complete waste of time and degradation as a developer? No offense, but I've heard terrible things about that language and I'm afraid that if people see it in my resume later that would scare them off.

  Read the article

• How does Google+ embed link works?

  - by Drake

  I am trying to understand how does embed link works in Google+ Stream. I manage a site and usually every post contains some text and at least an image. But when I try to embed the link to a certain article on my blog the embed feature does not show the article text and images, but instead it shows the header image of my site plus some other header text content. Do you know how should I tag or code the article part so that Google+ parser recognize the right thing I want to show?

  Read the article

• How to search drupal site from the new Unity lense?

  - by Ognjen

  I'm creating a simple Unity lense for my college site which is based on Drupal, but I don't know how to adapt this command for Drupal API. Please help, it's python. We now create our query url, using the Wikipedia opensearch API url = ("%s/w/api.php?action=opensearch&limit=25&format=json&search=%s" % (self.wiki, search)) I'm using template to write lense following Wikipedia example http://developer.ubuntu.com/2012/04/how-to-create-a-wikipedia-unity-lens-for-ubuntu/. I don't know python but Im familiar with C. This Drupal API calling is the only problem I have to successfully develop a lense. Please help!

  Read the article

• Utility Queries–Database Files, (and Filegroups)

  - by drsql

  It has been a while since I last posted a utility query, and today, to avoid other work I am supposed to be doing, I decided to go ahead and work on another post.  Today, I went ahead and worked on a server configuration type query. One query I find I use pretty often is the following one that lists the files in the database. In this blog I will include 3 queries.  The first will deal with files and databases, and the second runs in a database to see the files and their filegroups (If there...(read more)

  Read the article

• How do I pass tests with higher scores? [closed]

  - by user1867842

  How do I pass a test of programming knowledge for a higher score on oDesk.com? I have passed php and javascript tests but I have passed them with low scores and barley passing. This doesn't look too appealing for clients and I'm afraid that is the reason I am not being hired for a job. I know I am capable of doing web work and such. But I haven't been accepted for an interview or anything. Any idea how to study for something like this ?

  Read the article

• Using .add() on the same widget more than once

  - by Dillon Gilmore

  I asked this question on Reddit and was directed here. http://www.reddit.com/r/Ubuntu/comments/vhadl/quickly_dynamic_ui/ Unfortunately I am having the same issue and the problems seems that you can only use .add() on a widget once. So here is my code, self.ui.labels = [] for titles in entries: label = Gtk.Label() self.ui.labels.append(label) self.ui.viewport1.add(self.ui.labels[-1]) self.ui.paned1.show_all() Now, for fun I decided "What would happen if I just manually did..." self.ui.viewport1.add(Gtk.Label()) self.ui.viewport1.add(Gtk.Button()) self.ui.viewport1.add(Gtk.Entry()) For my first code snippet I get this error, Gtk-CRITICAL **: gtk_viewport_add: assertion gtk_bin_get_child (bin) == NULL' failed The error happens an unknown amount of times because the list entries can vary in length, but for my second code snippet it happens exactly twice. This means that when I viewport1.add() it works the first time, but all adds after that receive the error above. So my question, is there a way in python to use .add() on the same widget more than once?

  Read the article

• Final Year Project Advice: what impact on my CV [closed]

  - by Devon Smith

  I am being offered - as a final year project - to do a Company Website. This is basically an out-house project and I am not completely sure whether I should take it. The requirements are : Company Information User Registration Order placements. The technologies that I should use are PHP, Javascript, HTML, CSS and maybe Java Servlets. This appears to me a very basic project and I need an opinion as to what effect it might have on my CV. Is it worth to do it? Or should I go into some research project or something that has not been done before?

  Read the article

• Unix tools in business use: are they helpful?

  - by Prometheus

  Do you think knowing Unix tools like sed, awk, LaTeX, Perl give you a great edge in the business world? (e.g. being a manager) From my short reflection, the only profession that needs those sort of (plain text) tools is programming. Because even when I do creative writing, I rarely ever need it. I mean, do CEOs and executives of large corporations ever learn this kind of stuff if they were not CS major to begin with?

  Read the article

• Which is the next dominant programming paradigm? [closed]

  - by Kugathasan Abimaran

  What is the next programming paradigm when OOP get lost in the market? Or else will OOP be for ever? What is your advise for the future developers? To which paradigm should we aware of? Because, before OOP, structured programming paradigm is there with C. Don't close it Please, because I need to aware, which paradigm have the ability to withstand in future? Aspect-oriented programming. Declarative programming. Functional programming. Object-oriented programming. Any Others? This describes programming paradigm according to their kernel language.

  Read the article

• Rules of Holes #4 -Do You Have the BIG Picture?

  - by ArnieRowland

  Some folks decry the concept of being in a 'Hole'. For them, there is no such thing as 'Technical Debt', no such thing as maintaining weak and wobbly legacy code, no such thing as bad designs, no such thing as under-skilled or poorly performing co-workers, no such thing as 'fighting fires', or no such thing as management that doesn't share the corporate vision. They just go to work and do their job, keep their head down, and do whatever is required. Mostly. Until the day they are swallowed by the...(read more)

  Read the article

• Trouble Updating to Version 13.10 (from Version 13.04)

  - by user206783

  By trying to update to Version 13.10 (German) from Version 13.04 i'd received the following Problem-Message: W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/main/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/restricted/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/universe/source/Sources 404 Not Found" W:Fehlschlag beim Holen von "http: //de.archive.ubuntu.com/ubuntu/dists/natty-backports/multiverse/source/Sources 404 Not Found" E:Einige Indexdateien konnten nicht heruntergeladen werden. Sie wurden ignoriert oder alte an ihrer Stelle benutzt. Update rolls back Anyone got an solution?

  Read the article

• Why is Android VM-based? [closed]

  - by adib

  By about 2004, it was clear that ARM is the clear winner for mobile CPUs, beating out MIPS, SH3, and DragonBall. PocketPC (Windows Mobile) applications was natively-compiled (at least most of them - except for .NET compact and its competitors). Likewise, Apple's iOS (named iPhone OS at the time) prefers natively-compiled applications. Then why Android chose a virtual machine based system stack? (the Dalvik VM). Wouldn't it be simpler to just compile applications down to ARM code using GCJ or something? Is the decision influenced by the J2ME-way of doing things, or was just because it's "cool"? Perhaps like most things Java, the culture that prefers multiple levels of indirection and abstractions, they just added another layer of abstraction for "just in case"?

  Read the article

• Rules of Holes #5: Seek Help to Get Out of the Hole

  - by ArnieRowland

  You are moving along, doing good work, maintaining a steady pace. All seems to be going well for you. Then BAM!, a Hole just grabbed you. How the heck did that happen? What went wrong? How did you fall into a Hole? Definitely, you will want to do a post-mortem and try to tease out what misteps led you into the Hole. Certainly you will want to use this opportunity to enhance your Hole avoidance skills. But your first priority is to get out of this Hole right NOW.. Consider the Fifth Rule of Holes...(read more)

  Read the article

• What are the dos and dont's when leaving a job? [closed]

  - by john ryan

  I'm going to resign from my current employer (manufacturing sector), where I've been working for 2.6 years as an IT Application Developer. It's the first company I've worked in after I graduated from college. I don't have any problem with the company, I just realized that I want to learn new technologies and get out of my comfort zone and move to the IT industry. I already got a job offer from another company. My IT manager has told me that I am one of the best players in our group, that our group is enough to support our company and that it would be unacceptable if anyone of us resigned. They will counter the offer, but I'm set on leaving. My problem is that I don't know what are the essential dos and don'ts when resigning from a current employer. For example I'm expecting a lot of inquiries on why I'm leaving from people in the company, what do I need to say?

  Read the article

• How to Convert HTML to PDF Using PHP?

  - by Meng Longlong

  PDF or Portable Document Format is a popular file type that is often used for online documents. It's great for distributing downloadable written content, and is frequently used by governments and businesses alike. Because it's a format that's familiar to all, many applications allow the user to convert other document types to the PDF format. PHP is one programming language that has a built-in ability to convert to PDF. PHP scripts can be used to transform file types such as HTML into PDF files.

  Read the article

• What are some techniques I can use to refactor Object Oriented code into Functional code?

  - by tieTYT

  I've spent about 20-40 hours developing part of a game using JavaScript and HTML5 canvas. When I started I had no idea what I was doing. So it started as a proof of concept and is coming along nicely now, but it has no automated tests. The game is starting to become complex enough that it could benefit from some automated testing, but it seems tough to do because the code depends on mutating global state. I'd like to refactor the whole thing using Underscore.js, a functional programming library for JavaScript. Part of me thinks I should just start from scratch using a Functional Programming style and testing. But, I think refactoring the imperative code into declarative code might be a better learning experience and a safer way to get to my current state of functionality. Problem is, I know what I want my code to look like in the end, but I don't know how to turn my current code into it. I'm hoping some people here could give me some tips a la the Refactoring book and Working Effectively With Legacy Code. For example, as a first step I'm thinking about "banning" global state. Take every function that uses a global variable and pass it in as a parameter instead. Next step may be to "ban" mutation, and to always return a new object. Any advice would be appreciated. I've never taken OO code and refactored it into Functional code before.

  Read the article

• Drawing out a document with strategies for coping with "disasters"

  - by James Poulson

  Does anyone happen to know of some guidelines for writing up a document for coping with possible disaster scenarios ? By disaster I mean anything that could lead to loss of work, time or eventually a client. I seem to remember reading an article along these lines but, unfortunately, I can't find it anymore. So I'd appreciate some feedback in this direction. I think such an approach would be useful in the company I'm in right now as we've had the occasional scare which might have been avoided with some preventative thinking.

  Read the article

• What Book-Library Organizing Programs are available?

  - by el10780

  I would like to ask if there is any good program for ubuntu 12.04 to organize a library of books.I want to mention that I also have books written in my native language (Greek) and I have books written in other languages like English,French, etc too .So basically I need an application which can fetch information from databases for Greek books. For example - Adding a Greek (ISBN) book database source and when I type the ISBN of the book in the program ,it should find the book from that databases. Is this possible? I already tried Tellico and GCstar but they were unable to find books with Greek ISBN .I tried to add a Greek book source but it wasn't successful.

  Read the article

• Rules of Holes #3 -A Better Shovel is NOT the Answer!

  - by ArnieRowland

  You stopped digging. You looked around and saw that you were still in the Hole. You needed to get out. AHA! Problem solved, you thought. You'll just get a better and more efficient shovel! Sorry, I have to tell you that switching to a more efficient shovel is unlikely to help you get out of the Hole. Yes, your resumed digging may be faster, more directed, and even well planned and articulated. But you will still be in the Hole, and digging. And that's just not the solution. A new process (scrum,...(read more)

  Read the article

• Opinion for my recruitment portal idea [closed]

  - by user1498503

  I am creating a recruitment portal for IT professionals. In this, recruiters while creating a job post would be asked to create a skills requirement matrix. Essential Skills : asp.net MVC Entity Framework Desired Skills : SQL Server 2008 IIS 7.0 On the other hand job seekers would also have their own skills matrix Jobseeker #1 Core Skills : asp.net MVC Entity Framework MangoDB Secondary Skills : SQL Server 2008 IIS 7.0 Jobseeker #2 Core Skills : asp.net Web forms Secondary Skills : SQL Server 2008 IIS 7.0 So when both job seekers apply for the same job. Would it be a good idea for both of them to see each other's skills matrix for comparison?Also no personal details and CVs are shared. I think comparisons would help job seekers to understand what their areas of improvement are and could motivate to fill the skills gap. Your opinion would be appreciated. Regards

  Read the article

• What Interface Toolkit is being recommended for Ubuntu on Nexus7/Mobile Devices?

  - by Baggers

  I understand this is a may be a very premature question given that the current build is for testing Ubuntu Core, but I have just bought a Nexus7 to join in with this Ubuntu on mobile adventure and can't help wanting to start writing some apps! I haven't really dabbled with either GTK or QT for touch apps yet and, having seen that Ubuntu TV is using Nux, I wondered what people on AskUbuntu-land would recommend. Hope someone out there know this! Cheers

  Read the article

• Would form keys reduce the amount of spam we receive?

  - by David Wilkins

  I work for a company that has an online store, and we constantly have to deal with a lot of spam product reviews, and bogus customer accounts. These are all created by automated systems and are more of a nuisance than anything. What I am thinking of (in lieu of captcha, which can be broken) is adding a sort of form key solution to all relevant forms. I know for certain some of the spammers are using XRumer, and I know they seldom request a page before sending us the form data (Is this the definition of CSRF?) so I would think that tying a key to each requested form would at least stem the tide. I also know the spammers are lazy and don't check their work, or they would see that we have never posted a spam review, and they have never gained any revenue from our site. Would this succeed in significantly reducing the volume of spam product reviews and customer account creations we are seeing? EDIT: To clarify what I mean by "Form Keys": I am referring to creating a unique identifier (or "key") that will be used as an invisible, static form field. This key will also be stored either in the database (relative to the user session) or in a cookie variable. When the form's target gets a request, the key must be validated for the form's data to be processed. Those pesky bots won't have the key because they don't load the javascript that generates the form (they just send a blind request to the target) and even if they did load the javascript once, they'd only have one valid key, and I'm not sure they even use cookies.

  Read the article

• Part-time work as a beginner programmer [on hold]

  - by Valentas

  I wrote to one company near my university (starting in September) and they responded that they will probably hire me from the work I have already done (some projects and Euler problems solving). It's for 15 hours/week or so in order to not fall behind uni work. They require Python, SQL, XML and a good idea about how the Web works. The job role involves acquiring data from the Web and supplying it as search results for flight seekers (people). I am eager to learn but still, what can I do to become prepared for this? I ask because I tend to gravitate from one technology to the other, trying out things but never mastering it properly. What Web technologies are involved in such a job role? I have two months and want to learn as much as possible because there is much info but I have no idea where to start.

  Read the article

< Previous Page | 214 215 216 217 218 219 220 221 222 223 224 225  | Next Page >