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  • Factory for arrays of objects in python

    - by Vorac
    Ok, the title might be a little misleading. I have a Window class that draws widgets inside itself in the constructor. The widgets are all of the same type. So I pass a list of dictionaries, which contain the parameters for each widget. This works quite nicely, but I am worried that the interface to callers is obfuscated. That is, in order to use Window, one has to study the class, construct a correct list of dictionaries, and then call the constructor with only one parameter - widgets_params. Is this good or bad design? What alternatives does the python syntax provide?

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  • HTML5 Canvas Tileset Animation

    - by Veyha
    How to do in HTML5 canvas Image animating? I am have this code now: http://jsfiddle.net/WnjB6/1/ In here I am can add animations something like - Animation.add('stand', [0, 1, 2, 3, 4, 5]); But how to play this animation? My image drawing function is - drawTile(canvasX, canvasY, tile, tileWidth, tileHeight); Animation['stand']; return 0, 1, 2, 3, 4, 5 I am need something like when I am run Animation.play('stand') run animation from 'stand' array. I am try to do this something like one day, but no have more idea how. :( Thanks and sorry for my bad English language.

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  • h1 title attribute [closed]

    - by codemonkey
    Possible Duplicate: Why don't TITLE tags get indexed in google? Hello there, I have a h1 element on my page which is working great. I have also been using the title attribute on this element which I don't think has been causing much harm at all. My h1 title is "The Great Ocean Road" and the title attribute on that is "Great Ocean Road" - so it's a variation of the h1 text. These are both keywords for the site so i'm hoping it's a good thing for seo. Is that a bad idea do you think? I'm not sure what Search Engines think about using a title attribute or even if they would 'mark me down' for doing it in such a way. Do you think if the h1 text is "The Great Ocean Road", the title attribute should be "The Great Ocean Road" aswell? Thank you in advance

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  • iOS NSError with global handler

    - by Sebastian Dressler
    I am in the beginning of programming an iOS app. Having read the Apple guides on how to deal with errors, I got the following most important points: Exceptions are for programmers Use NSError for the user Now, NSError is usually passed as out-argument which can then be used inside and has to be checked by the caller. However, I'm asking myself whether it is a good idea to use a global error handler, say a singleton which wraps around NSError and could be used to trigger errors and error handling from within the called function. Is there anything against that method or would it be a bad practice?

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  • And if I ask the job interviewer for reasons to join the company?

    - by Oscar
    In job interviews I am frequently asked if I know the company, explain why do I think I would be the best choice for this company, etc and I have never liked this kinds of questions. Using your experiences in job interviewing, what do you think it would happen if I ask the interviewer to explain me why he think the company is the best company for me and why I should accept their answer? Do you think it would be a good think or bad thing to do? Edit: the idea of the question would not be to "challenge" the interviewer. The idea of the question would be to see what he thinks about the company, what values he thinks are given importance inside the company and what are the strong points of the company.

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  • Writing a basic C Shell - understanding argv[] [on hold]

    - by Flame
    I have an assignment for my class to write a basic C Shell. I have found many pages that explain parts of it and some fully implemented code. I'm not going to copy, i'm just using it right now as a way to get started. So I'm at the beginning of this project obviously. One example I am looking at parses the user's input and stores a pointer to the beginning of the argument in char *argv[3]; Am I just misunderstanding this or would this technically break if there are more than 3 arguments? (say /a.out arg1 arg2 arg3 etc). Would I wanna malloc this somehow? I know a.out is considered argv[0], and the arguments argv1 - however many there are. It's probably bad practice to have too many arguments for a program, but I still would at least want to address it as I don't know what my TA's are going to use to test my shell.

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  • Ubuntu 11.04 seem's like a laggy OS

    - by user772401
    I'm new to Linux/Ubuntu in general. I just dual booted the Ubuntu 11.04 w/Windows 7 on my Lenovo laptop - Intel i7 Quad Core 2Ghz, 4Gb ram, etc. etc... and for some reason Ubuntu is very laggy and slow. When I'm switching between programs (Chromium, folders, software center, etc..) it doesn't run as smooth as windows 7 (I have no more than 3 programs/windows up at a time...). I don't think it's my system requirements bkz Linux OSs are known to use low system resources. Could be a bad install or do people find it slow and laggy in general or is it my PC mfg type?? I installed it using Wubi - should I do a reinstall? I've already done all the recommended updates..

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  • Validation and Verification explanation (Boehm) - I cannot understand its point

    - by user970696
    Hopefully my last thread about V&V as I found the B.Boehm is text which I just do not understand well (likely my technical English is not that good). http://csse.usc.edu/csse/TECHRPTS/1979/usccse79-501/usccse79-501.pdf Basically he says that verification is about checking that products derived from requirements baseline must correspond to it and that deviation leads only to changes in these derived products (design, code). But he says it begins with design and ends with acceptance tests (you can check the V model inside). The thing is, I have accepted ISO12207 in terms of all testing is validation, yet it does not make any sense here. In order to be sure the product complies with requirements (acceptance test) I need to test it. Also it says that validation problems means that requirements are bad and needs to be changed - which does not happen with testing that testers do, who just checks correspondence with requirements.

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  • List item stuck in "Pending"

    - by Norgean
    Problem simplified: On approval, you have an event receiver that changes a field according to some weird and wonderful business logic. But the item remains in "Pending" state. Why?   First, you obviously need to turn off the event handling when you change things in the event receiver. If not, the event receiver will be called because the item changed. Infinite recursion is a bad thing. But you guessed that.   But that's not what was wrong. The culprit in my case was that items are set to require a new approval whenever the item is changed. This is good, but not what we want in this particular case. So force it back to approved after the other column has been changed.

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  • Did you know you can shrink a transaction log even when log shipping?

    - by simonsabin
    David's posted a great post on shrinking the transaction log and log shipping. Log shipping and shrinking transaction logs Unlike shrinking the data file shrinking the transaction log isn't a bad thing, IF you don't need the log to be that size. I've seen many systems that shrink the log because it has grown only for it to grow the next day to the same size becuase of an overnight operation. To reduce the growth of the transaction log you need to do one or more of the following, 1.Back it up more frequently2.Change to simple recovery model3.Use minimally logged operations4.Keep transactions short and small5.Break large transactions into smaller transactions6.If using replication ensure that your backup of the replication topology is frequent enough

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  • What is the SEO-recommended method for using underscores and dashes in URLs that contain geographic locations?

    - by ElHaix
    In reading through this article: In Subfolder & File Names, Use Dashes, Not Underscores Good: Good: http://www.domain.com/sub-folder/file-name.htm Bad: http://www.domain.com/sub_folder/file_name.htm In my URL's, I may have one or two city names, ending with the province/state: Burnaby_New_Westminister-BC/[some search term]. My URL rules currently are defined such that everything after the dash is the prov/state. Some geographic locations already contain dashes: Notre-Dame-de-Grâce (in QC), which I would convert to ~/Notre_Dame_de_Grace-QC/ I thought of placing the prov/state after another "/", however in some cases the province/state name may not exist, thus ~/Notre_Dame_de_Grace/, so the first term after the domain name contains the geo location {city, city_name-state}. I am now revisiting this, and wondering if this rule set should change, and if so, what is the recommended way of implementing this? -- UPDATE -- After reviewing this video, I see that I should be using the dashes, rather than underscores. However since I still want to have my geo locations in the first URL section, is there anything wrong with using a double-dash separator - ie: /city-name--state/ ?

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  • Is Carnegie Mellon (CMU) a Javaschool? Are any prominent universities in the US javaschools? [on hold]

    - by user106149
    I'm guessing CMU would teach C and other unmanaged languages (their course listing shows Principles of Functional Programming as a required course for a BSCS), but it's hard to tell from course listings. I'm looking into applying there, where I have an OK chance of getting in , as well as some other mid-to high tier CS schools. I'm wondering how you can tell if a school mainly teaches Java or goes into C/C++. Everyone says (and I agree, from my current programming knowledge) that learning Java in college exclusively is a bad idea, so I'm hoping to avoid ending up at a 'Javaschool.'

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  • Pooling (Singleton) Objects Against Connection Pools

    - by kolossus
    Given the following scenario A canned enterprise application that maintains its own connection pool A homegrown client application to the enterprise app. This app is built using Spring framework, with the DAO pattern While I may have a simplistic view of this, I think the following line of thinking is sound: Having a fixed pool of DAO objects, holding on to connection objects from the pool. Clearly, the pool should be capable of scaling up (or down depending on need) and the connection objects must outnumber the DAOs by a healthy margin. Good Instantiating brand new DAOs for every request to access the enterprise app; each DAO will attempt to grab a connection from the pool and release it when it's done. Bad Since these are service objects, there will be no (mutable) state held by the objects (reduced risk of concurrency issues) I also think that with #1, there should be little to no resource contention, while in #2, there'll almost always be a DAO waiting to be serviced. Is my thinking correct and what could go wrong?

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  • Webmail with option to change password for email account?

    - by arma
    Been testing out different webmail options to use (so far AfterLogic, Horde) And it seems that there is no options to change password for user. It's really bad thing that i have to go to server and manually change passwords for users. Is there any webmail solution that will allow me to change password, that also changes on server (as client). Or is it server setting i must use before? Or it is not possible? EDIT: Note that i have cPanel host.

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  • Disaster In The Real World - #2

    Back in April Steve Jones wrote up a disaster at work. Andy had one this week and wrote up the story too. Copy cat! Pretty soon everyone will be having a disaster and writing a story about it! Give these guys credit for letting you see what happens when it ALL goes bad. Disaster recovery is hard to sell and hard to do, reading the article might give you an idea that will save you some time and/or data one day.

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  • AdSense link units targeting better keywords?

    - by Unavailable
    I have one link unit above my navigation which targets exact keywords on what my site is about, on contrary my AdSense for content Leaderboard and Wide Skyscraper show ads that are totally opposite from my keyword, while my ctr increased for about 10 times with link unit I noticed CPC is lower also (but that was just based on one day, today is higher). Is it so bad to completely get rid of standard content ads and put link units, because this way I earn so little for that site but I think that is because smart pricing (accidental clicks on ads that my users are not interested)? I earn in whole day with about 25-35 clicks as much as keyword tool shows for only one click, my site is first for the topic? I really don't know what to do. Has anyone had similar situation or can give some advice?

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  • Automatic login option is missing in 12.04

    - by grossogrossum
    Automatic login option is missing from System Settings User Accounts, how can I solve this? I either can't set the automatic login by editing /etc/lightdm/lightdm.conf [SeatDefaults] autologin-user=x autologin-user-timeout=0 user-session=ubuntu greeter-session=unity-greeter After restart login screen asks for my password. There is a thread in Ubuntu forums http://ubuntuforums.org/showthread.php?p=11889259 . It's in lubuntu forum, but there are ubuntu users afected too. I'm runing 12.04 (precise) 64-bit with Kernel Linux 3.2.0-24-generic. Excuse my bad english, please.

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  • Visual Studio Load Tests Virtual Users Simulation

    - by Eldar
    Hello, I'm currently working on writing a load testing application that takes advantage of Load Test using Visual Studio 2010. The load test will simulate 20 users on the same machine, and I need some data to be shared in-memory between all simulated users. I was suprised I couldn't find documentation answering the following question: What seperates each virtual user's running context from the other? Does each virtual user runs the tests in its own process? Maybe in its own app domain? Or just on its own thread? I need to know because if each user is running tests in its own process then all the in-memory cache isn't shared and is created for each user instead of one time for all of them, which is bad for me.

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  • What is the correct frequency of changing content regularly?

    - by SSRB
    What is the correct frequency of changing content regularly? Suppose I have a site "Seven Sea" having 5 links name as Home, About Us, Product, Sitemap, Contact Us. It is good for site to change the site content regularly. But is there is any minimum and maximum frequency for do this job. Suppose I do change my content daily then is that good for SEO point of view. OR suppose I change my content once in a year Is that bad for SEO. What is best or more better choice? A REQUEST: If this type of question already answered then give me that answered link and do not close the question.

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  • One man software developer product success stories? [on hold]

    - by EugeneKr
    I've got a bad feeling that this question is not appropriate here.. Hopefully you can point me to the right place to ask such a thing (not google though, been there). I want to create my own product, but for some reason have no ideas, so decided to see what people have already done. I would like to start by myself too. I don't mind expanding, but at later stages when it is absolutely necessary. Anyway, to give you an example. There is a guy who created bingo card generation software, then somebody made a wedding planner software and they seem to be doing pretty fine. I would like to know more such cases to draw inspiration from. Do you know such people or maybe you are one of them? Also, if there are places on the net where they dwell, don't hesitate to tell me :) Thanks!

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  • SEO - Hidden content before main site content

    - by 0pt1m1z3
    I have a two hidden divs before my main site content, one with the login form and another with the signup form. I then have login and signup buttons within the page that use JQuery to show or hide these divs. I like the effect this setup offers, dropping down from the top of the page and pushing the rest of the content down. However, recently I have been getting serious about SEO and I am wondering if these divs have been affecting my SERP rankings. Basically, every non-logged page (everything bots see) has the same two display:none; divs at the top of the document flow. Is it bad? Should I re-engineer these forms and the way they are displayed?

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  • Foreign key restrictions -> yes or no?

    - by This is it
    I would like to hear some”real life experience” suggestions if foreign key restrictions are good or bad thing to enforce in DB. I would kindly ask students/beginners to refrain from jumping and answering quickly and without thinking. At the beginning of my career I thought that stupidest thing you can do is disregard the referential integrity. Today, after "few" projects I'm thinking different. Quite different. What do you think: Should we enforce foreign key restrictions or not? *Please explain your answer.

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  • What do the various dpkg flags like 'ii' 'rc' mean?

    - by theTuxRacer
    I frequently need to check which packages are installed, and I use the following command: dpkg -l | grep foo which gives the following output Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Description ii foo <version> <description> What does the ii mean? What other flags are there? How to read the flags? (because the explanation is quite complicated, IMO) Thanks.

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  • What's the difference between "Service" and "/etc/init.d/"?

    - by Marco Ceppi
    I've been managing server installations both on and off Ubuntu flavor for some time - I've become quite adjusted to /etc/init.d/ for restarting servcies. Now I get this message: root@tatooine:~# /etc/init.d/mysql status Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service mysql status Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the status(8) utility, e.g. status mysql mysql start/running, process 14048 This seems to have been brought about in the latest LTS of Ubuntu - why? What's so bad about /etc/init.d/ and what/is there a difference between service and /etc/init.d/?

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  • ubuntu 13.10 secondary monitor - doesn't redraw properly

    - by Daniel
    Hi I've just installed Ubuntu 13.10 on a Lenovo w350 and am having some issues with graphics driver. standard nouveau drivers work great on the laptop display but when I attach an external display it goes bad on the external monitor, seems it's not re-drawing properly. (Photo attached). I've tried other drivers but none of them detect the external monitor when connected. Any ideas? 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107GLM [Quadro K1000M] (rev a1) screenshot of effected monitor -- http://i.imgur.com/UZWMpQO.jpg UPDATE 1: I have noticed that if I leave the System Monitor open the display improves. Wierd. UPDATE 2: If I leave a video going the lag/flicker issues stop.

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