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• Go, AppEngine: How to structure templates for application

  - by laslowh

  How are people handling the use of templates in their Go-based AppEngine applications? Specifically, I'm looking for a project structure that affords the following: Hierarchical (directory) structure of templates and partial templates Allow me to use HTML tools/editors on my templates (embedding template text in xxx.go files makes this difficult) Automatic reload of template text when on dev server Potential stumbling blocks are: template.ParseGlob() will not traverse recursively. For performance reasons it has been recommended not to upload your templates as raw text files (because those text files reside on different servers than executing code). Please note that I am not looking for a tutorial/examples of the use of the template package. This is more of an app structure question. That being said, if you have code that solves the above problems, I would love to see it. Thanks in advance.

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• Help with running crontab from root

  - by user242065

  Im using OSX and having trouble getting a cron job to run. I type the following: $ sudo -i $ crontab -e I then enter: * * * * * root ifconfig en0 down > /dev/null 0 19 * * * root ifconfig en0 down > /dev/null 0 7 * * * root ifconfig en0 up > /dev/null and no success, the first line is for testing. I want it to shut off my internet. The next two lines I plan to leave in, once I get this working. If I type this in to the terminal the internet goes off ifconfig en0 down Why is my cron job not shutting down the internet? FYI: This is a follow up question from http://stackoverflow.com/questions/3027362/how-can-i-write-a-cron-job-that-will-block-my-internet-from-7pm-to-7am-so-i-can most of the comments there are people making fun of me. And a few attempts to solve the problem with out cron jobs.

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• Is vbscripting that difficult?

  - by eric young

  I need to write some vbscripts in my new project. I was told by other people that vbscripting is easy, but seems to me, it is not. For example, in the following example (provided by microsoft), these functions: CreateObject, CreateShortcut, as well as these property names: TargetPath, WindowStyle, Hotkey, etc, are used, but I just cannot find the corresponding API documentation about how to use them. In other words, how do you know you need to call these functions in your vbscripts? Visual Studio 2008/2010 do not have templates for vbscript either. Could anybody tell me what I am missing, and what the best way is to do vbscripting? set WshShell = WScript.CreateObject("WScript.Shell") strDesktop = WshShell.SpecialFolders("Desktop") set oShellLink = WshShell.CreateShortcut(strDesktop _ & "\MyExcel.lnk") oShellLink.TargetPath = _ "C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE" oShellLink.WindowStyle = 1 oShellLink.Hotkey = "CTRL+SHIFT+F" oShellLink.IconLocation = _ "C:\Program Files\Microsoft Office\OFFICE11\EXCEL.EXE, 0" oShellLink.Description = "My Excel Shortcut" oShellLink.WorkingDirectory = strDesktop oShellLink.Save

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• Focus stealing is evil.

  - by lunixbochs

  A quick Google search for solutions to Focus Stealing in Windows reveals two main result categories: People suggesting incomplete solutions involving the ForegroundLockTimeout registry entry (or TweakUI, which I believe simply changes the aforementioned registry entry), which isn't very effective. Incessant hordes of Windows users complaining about it. It's particularly annoying in two common scenarios: Something triggers a program to popup a dialog window in the background while a fullscreen app is focused, causing the fullscreen app to minimize. A window steals focus while you are typing, stealing all of your keystrokes. If you happen to press Space, Enter, or trigger a keyboard shortcut (like Y for Yes), it can cause completely undesirable outcomes. What creative solutions can be applied to fix this problem for either or both of these scenarios?

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• Sql Server as logging, best connection practise

  - by ozz

  I'm using SqlServer as logging. Yes this is wrong decision, there are better dbs for this requirement. But I have no other option for now. Logging interval is 3 logs per second. So I've static Logger class and it has static Log method. Using "Open Connection" as static member is better for performance. But what is the best implemantation of it? This is not that I know. public static class OzzLogger { static SqlConnection Con; static OzzLogger() { Con=ne SqlConnection(....); Con.Open(); } public static void Log(....) { Con.ExecuteSql(......); } } UPDATE I asked because of my old information. People say "connection pooling performance is enough". If there is no objection I'm closing the issue :)

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• Drupal Webform textfield dynamic growing list

  - by Bob Crowley

  Just curious... I have a project where people can input their cooking recipes. I would like to build a webform that will have a textfield and when it is filled in a new textfield appears below. A "growing textfield list". Let me try to show it here: Ingredient #1 _________________________________ [add] When you type and ingredient click "add" you then are going to see: Ingredient #1 Potatoes_________________________ Ingredient #2 _________________________________ [add] Sorry for not knowing the proper markup. However if anyone knows: a) the proper term for this ( I call a growing textfield list )? b) how to do it with webform in drupal?

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• Python design mistakes

  - by Andrea

  A while ago, when I was learning Javascript, I studied Javascript: the good parts, and I particularly enjoyed the chapters on the bad and the ugly parts. Of course, I did not agree with everything, as summing up the design defects of a programming language is to a certain extent subjective - although, for instance, I guess everyone would agree that the keyword with was a mistake in Javascript. Nevertheless, I find it useful to read such reviews: even if one does not agree, there is a lot to learn. Is there a blog entry or some book describing design mistakes for Python? For instance I guess some people would count the lack of tail call optimization a mistake; there may be other issues (or non-issues) which are worth learning about.

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• Linq to SQL inheritance and Table per Class - approach needed for multiple roles

  - by Ash Machine

  I am using L2S and an inheritance model for mapping Persons against certain roles. Guy Burstein's excellent blog post explains how to accomplish this: http://blogs.microsoft.co.il/blogs/bursteg/archive/2007/10/01/linq-to-sql-inheritance.aspx However, I have a specific case where a Person has multiple roles. For example 'Jane Doe' is a Contact and a Programmer. In this model, she would need two rows in the People table, one as Contact (PersonType = 1) and one as Programmer (PersonType = 3). If she changes her last name, and that update happens in her role as Contact, I would need to change all instances of 'Jane Doe' to reflect the name change everywhere. What sort of best approach (improved data structure) could be used to change last name within all roles? Finally, I am hoping to avoid overriding each general form update events to include all instances, but that may be the only way. Any suggestions or approaches appreciated.

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• Which would be better? Storing/access data in a local text file, or in a database?

  - by TerranRich

  Basically, I'm still working on a puzzle-related website (micro-site really), and I'm making a tool that lets you input a word pattern (e.g. "r??n") and get all the matching words (in this case: rain, rein, ruin, etc.). Should I store the words in local text files (such as words5.txt, which would have a return-delimited list of 5-letter words), or in a database (such as the table Words5, which would again store 5-letter words)? I'm looking at the problem in terms of data retrieval speeds and CPU server load. I could definitely try it both ways and record the times taken for several runs with both methods, but I'd rather hear it from people who might have had experience with this. Which method is generally better overall?

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• What was the motivation for adding the IPV6_V6ONLY flag?

  - by Jeremy Friesner

  In IPv6 networking, the IPV6_V6ONLY flag is used to ensure that a socket will only use IPv6, and in particular that IPv4-to-IPv6 mapping won't be used for that socket. On many OS's, the IPV6_V6ONLY is not set by default, but on some OS's (e.g. Windows 7), it is set by default. My question is: What was the motivation for introducing this flag? Is there something about IPv4-to-IPv6 mapping that was causing problems, and thus people needed a way to disable it? It would seem to me that if someone didn't want to use IPv4-to-IPv6 mapping, they could simply not specify a IPv4-mapped IPv6 address. What am I missing here?

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• Override l() function in Drupal

  - by Marco

  I'm currently working on a Drupal site (6.*), which when in production mode will be accessed through some kind of http proxy, which means I will have to rewrite all the links for my custom theme if the $_SERVER['HTTP_X_FORWARDED_SERVER'] variable is set to the domain people will access the site from. The site has a lot of internal linking, mostly through Views. My thought is that the easiest way to solve this would be to hook into the url() and/or the l() functions and post process the url before returning it if HTTP_X_FORWARDED_SERVER is set. My problem is that I can't figure out how to hook into these functions, or if it's even possible without touching the core, has anyone had to do this? How did you solve it?

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• decentralized development using git and git-svn

  - by CantGetANick

  We have 2-3 small teams of 2-3 people. We all use git for local and svn for central repository and git-svn got sync. This is works all the time except when we want to share our code between the team it self. So we have tried out git pull, this creates lots of conflicts and it does not detect that we are on the same tree. It fetches all the changes (same as clone then pull) Of course i dont want to clone full repo. every time I want to share. Please suggest a better flow. We can't get rid of central svn. We can't clone every time.

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• Save Values AUTOMATICALLY with NSUserDefaults

  - by Edouard Tarter

  I have an app with two UITextFields, where the user enters an integer, and then a method is called with the values the user enters. But when I completely close the app, the values are deleted. I want to change it to save the value the user entered when it closes, and loads it up when the app is re-opened. I tried this with NSUserDefault, and it worked fine (with save and load button), but I want it to make it automatically, without pressing any buttons. I saw some other people do it with the basic methods in the AppDelegate.m, but I don't know anything about that, therefore I didn't understand it at all. I saw MANY tutorials online, but I didn't understand any of them, please help, and give a detailed answer, thanks :)

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• Is there any tips for minimising access to a public page without login?

  - by alex

  I have a page that is just a non interactive display for a shop window. Obviously, I don't link to it, and I'd also like to avoid people stumbling across it (by Google etc). It will always be powered by Chrome. I have thought of... Checking User Agent for Chrome Ensuring resolution is 1920 x 1080 (not that useful as it is a client side check) Banning under robots.txt to keep Google out of it Do you have any more suggestions? Should I not really worry about it?

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• Spring & Hibernate SessionFactory - recovery from a down server

  - by MJB

  So pre spring, we used version of HibernateUtil that cached the SessionFactory instance if a successful raw JDBC connection was made, and threw SQLException otherwise. This allowed us to recover from initial setup of the SessionFactory being "bad" due to authentication or server connection issues. We moved to Spring and wired things in a more or less classic way with the LocalSessionFactoryBean, the C3P0 datasource, and various dao classes which have the SessionFactory injected. Now, if the SQL server appears to not be up when the web app runs, the web app never recovers. All access to the dao methods blow up because a null sessionfactory gets injected. (once the sessionfactory is made properly, the connection pool mostly handles the up/down status of the sql server fine, so recovery is possible) Now, the dao methods are wired by default to be singletons, and we could change them to prototype. I don't think that will fix the matter though - I believe the LocalSessionFactoryBean is now "stuck" and caches the null reference (I haven't tested this yet, though, I'll shamefully admit). This has to be an issue that concerns people.

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• Are there cheat sheets for misc source code management tools?

  - by Alex_coder

  I'm looking for something similar to Pacman Rosetta, which explains how to achieve similar tasks using different source code management tools. Sometimes docs for a certain SCM contain examples comparing that particular SCM to a couple of others. But I'm looking for a central place that contains maximum available information. Example: one uses bzr and knows that 'bzr pull' syncs a local repo by fetching new content from a remote repo. One want to know how to do that with git. One finds the git command, he knows the keyword. Since the keyword is known, one can proceed straight to git docs, he knows what to read about, he doesn't have to waste time by searching the git docs. I understand this might be not the only way people use to learn a new SCM tool. If you use other approaches, please do tell.

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• Getting a list of all phone contacts?

  - by pcm2a

  Simple enough question. I need to know the best way to get the same list of contacts that show up when a user presses the Contacts button. You would think something like this would work: //For Contacts Intent pickIntent = new Intent(Intent.ACTION_PICK, People.CONTENT_URI); this.startActivityForResult(pickIntent, RESULT); //For Phones Intent pickIntent = new Intent(Intent.ACTION_PICK, Phones.CONTENT_URI); this.startActivityForResult(pickIntent, RESULT); The problem is that does not include secondary google accounts or Exchange contacts. By secondary accounts, in Android you can add additional gmail accounts to have the mail/contacts synced. The above intent will not list those additional contacts. I am also told that on the HTC Desire you can add contacts to the phone that do not get synced up to Google. These contacts also do not show up. So how do I get a real list of contacts so I can create my own list activity that works properly where the Google intent does not.

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• Is there a standardized (Meta?) Tag for the Date of a Website?

  - by Michael Stum

  One thing that search engines really suck with is the date when a website was created. You know the problem: You search for some CSS or JavaScript problem and Google returns a ton of results from 2002 explaining how to fix the problem in IE 5.5 and Netscape 4.6 while the helpful articles are buried on Page 3. There is only one use for Page 3, and meaningful search results are not it. Anyway, I just wonder if there is a standardized or at least generally accepted tag or meta tag that I can put on my own pages to indicate the date they were created? Not that it helps filtering out the old crap out of search results (especially since the people at #1 with their 2002 articles have zero incentive to change), but I'd just like to do my part :P

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• How can I select a value matching my input from a TypeAhead control using WWW::Mechanize?

  - by kyoob

  So ordinarily the element I want to pick from a list would be populated on a page and I'd just find it and pick it. But I'm dealing with a control that doesn't populate list elements until some input has been stuck into a text box, after which it gives me a list of recommendations. For an example of the kind of list I'm talking about think of Facebook's "People, Places, and Things" search field. I want to plug a string into this text box, select the same string from the list of recommendations, and submit the form. The issue I'm having right now is I can't seem to get Mechanize to even recognize the field is there. I examine a dump of $mech->find_all_inputs and it isn't listed. Is this kind of field just beyond Mechanize's jurisdiction?

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• Hidden Features of Google Guice

  - by Jon

  Google Guice provides some great dependency injection features. I came across the @Nullable feature recently which allows you to mark constructor arguments as optional (permitting null) since Guice does not permit these by default: e.g. public Person(String firstName, String lastName, @Nullable Phone phone) { this.firstName = checkNotNull(firstName, "firstName"); this.lastName = checkNotNull(lastName, "lastName"); this.phone = phone; } http://code.google.com/p/google-guice/wiki/UseNullable What are the other useful features of Guice (particularly the less obvious ones) that people use?

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• Browser graphics: Java Applet vs Flash vs anything else?

  - by Andrey

  Hello! We sell photoalbums which our customers create theirselves using a client album editor program (for Windows). Now we are going to develop an online program so customers could create their albums in the browser: upload photos and edit them. This is going to be a rich browser application with full graphics support. The problem is what technology to use? Our server application is build in Java and we think about Java Applets so that we could reuse some Java-code. We are also not very familiar with Flash. But some people say that Flash is preferred. Maybe there're some modern technologies now? SVG or some Google technologies (like GWT but with graphics support) or something? What do you think? Thanks in advance!

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• Versioned cloud-based social code snippet management

  - by Chapso

  It seems a lot to ask, but I'm looking for a cloud-based solution to managing code snippets. I am looking for: Tags User accounts (I want to be able to see all of my snippets on a single page) syntax highlighting versioning - myself or others should be able to edit my snippets to improve them\ straightforward UI with minimal advertising if any Does anyone know of a solution which meets these requirements? If not, would anyone be interested in something like this? As a software engineer, after step zero (does it already exist), I'm perfectly willing to go onto step 1 (would other people use it? If so, make it).

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• how to stop lightbox from closeing after submit button is clicked?

  - by Mahmoud

  hey all i am using lightbox to show an enlarge image of the thumbnail images, where in each enlarged image there is a submit button, when that button is clicked it addes to jcart and refreshes the pages, for demo please visit secure.sabayafrah.com username = mahmud password = mahmud now as you can see when you click at the thumbnail lightbox well show you an enlarge image in a bubble, where there is an submit image below the enlarged image if it was clicked it must add to cart and not refresh the page. i am using jcart as add to cart and lightbox to enlarge the images i asked so many people and all suggested that i use jquery live but i never used ajax so i am stuck here is it possible if yes is their a demo or a code well do this feature

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• What is the use of commit messages?

  - by eteubert

  Hi folks, I struggled asking that question but here it is. I am using source control since several years for multiple projects using different systems (svn, hg, git) and I learned how to improve my messages by following guidelines etc. But as far as I can remember I never ever had a look at them afterwards. So ... how do you profit from your own commit messages? When I need to go back because I smashed something and need a fresh start, I usually just go back to the latest "node" (where I started or merged a branch). Do I write those messages just for people monitoring the project who are curious what is going on? Regards

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• How long can a hash left out in the open be considered safe?

  - by Xeoncross

  If I were to leave a SHA2 family hash out on my website - how long would it be considered safe? How long would I have before I could be sure that someone would find a collision for it and know what was hashed? I know that the amount of time would be based on the computational power of the one seeking to break it. It would also depend on the string length, but I'm curious just how secure hashes are. Since many of us run web-servers we constantly have to be prepared for the day when someone might make it all the way to the database which stores the user hashes. So, move the server security out of the way and then what do you have? This is a slightly theoretical area for many of the people I have talked with, so I would love to actually have some more information about average expectations for cracking.

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