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• What ports, besides 80, need to be available to send (only send) email using phpmailer to gmail over SSL?

  - by Wobblefoot

  Using phpmailer I keep getting a 110 timeout and "Unable to connect to host" when sending email from my web server. The authentication details are right and they work on another server I have (login, pwd, ports etc and gmail acct set up for SSL connections on 465), but it's failing on my new server. FIREWALL: I allow related/established, port 80 and a port for SSH on INPUT, then this on OUTPUT: 7906 474K DROP tcp -- any any anywhere anywhere tcp dpt:smtp 0 0 ACCEPT tcp -- any any localhost.localdomain yw-in-f109.1e100.net tcp dpt:submission 0 0 ACCEPT tcp -- any any localhost.localdomain gx-in-f109.1e100.net tcp dpt:ssmtp 0 0 DROP tcp -- any any anywhere anywhere tcp dpt:submission 9 540 DROP tcp -- any any anywhere anywhere tcp dpt:ssmtp This output chain works on my other server and disabling it doesn't get mail delivered either. WEB SERVER: Varnish (80) Nginx (8088) Drupal 7 PHP5-FPM APC MySQL All works beautifully, except for outgoing email. What else could it be? I understand phpmailer does NOT require a local MTA or procmail (this is sort of the point - I don't want the security or admin overhead of a full blown MTA on my web server). Am I wrong? Do I need an MTA as well? What local ports and programs are used to authenticate over SSL and route mail using phpmailer? Any ideas at all greatly appreciated - wasted a day on this nonsense already!

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• Need some help figuring out BB4Win or any of its varieties: does it replace windows explorer?

  - by StormRyder

  I don't really care too much about replacing original Windows the desktop, taskbar and system tray. I really dislike the new Win7/Vista Windows Explorer: Screenshot here (just to make sure there's no confusion) So, what I'm trying to figure out is whether BB4Win or its plugins have a replacement for it. The bb4win website pretty much doesn't make sense to me. I'm using Win7 64 bit. Also, off-topic ... I was looking at a related question on this site here: Good Windows shell replacement Why can't I add comments? I wanted to ask the same question I'm asking now as a comment under the answer given by Molly7244, the person who answered with suggesting BB4Win. But there seems to be no way to add new comments anywhere! Why? Am I missing something? I don't quite understand the weird way this site is set up... I'm used to the more typical forum format. Sorry. Thanks for any help!

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• Need recommendation: which USB card (PCMCIA) works with external hard drive?

  - by Carl

  I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My external hard drive w/USB adapter won't work with it, and it will work plugged directly into a USB port on a different laptop. (My USB ports got fried.) I got the card off E-Bay. My MP3 player works plugged into that card. The drivers for the card say "Known limitations: High Speed Isochronus, USB Composite Devices." (No other details provided.) I don't know if the hard drive adapter is "isochronous" or "composite." I've read there are problems with too little power being supplied to the drive. The cable to the drive has two USB plugs on one end, and it doesn't make any difference if I plug both of them into the Cardbus card. What card should I get? I see many different brands on E-Bay. I need one that supplies sufficient power for an external hard drive, and doesn't have any "known limitations" in the way.

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• Help - since adding an elastic load balancer to my EC2 web application I cannot connect with the MySQL database (not in AWS)

  - by undefined

  I have a web application that uses an EC2 instance to receive uploaded images, resize and store on S3 and update my MySQL database with the image record. This database is hosted outside Amazon Web Services and so obviously involves communication between the EC2 instance and the database. Images are posted to the upload server from a Flash client which receives the IP address of the upload server when it is loaded and so sends images to 1.12.23.34/resize_script.php This has worked great .. until i started to try and include a load balancer. Since the ELBs do not use an IP address but a DNS address I am now passing this to Flash. Now when I upload images I get the following response from the server - Could not connect to MySQL: Lost connection to MySQL server at 'reading initial communication packet', system error: 111 What might be causing the lost connection to MySQL server. Is there any additional steps I need to take to allow my upload servers to be load balanced? I have set the host property of my MySQL privileges for this user to % any pointers greatly appreciated thanks.

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• Laptop LCD sometimes stops working on reboot. Please help.

  - by J Ringle

  I have a Gateway P-6831FX Laptop with Vista Ultimate. The Laptop LCD will sometimes not come on after I reboot the computer. I don't even close the lid and it happens. It isn't dim, it doesn't come on at all. No posting of CMOS (BIOS), nothing. Please note... this happens sometimes, not every time. Frustrating! When plugged into an external monitor, which works fine, Vista display properties can't even "sense" the laptop LCD. I try to enable the laptop LCD for dual display, turning on the laptop LCD, and it does nothing. It's like the laptop LCD is not even there. Manually taking a magnet in my hand to the laptop lid sensing switch (the sensor that turns off display/sleep mode when you close lid), sometimes causes the LCD backlight to "turn on" but not display any images. By "turn on" I mean I can see the screen backlight turn on to a 'dark gray' screen instead of pitch black. Subsequent reboot the laptop display is not working again! Here are the facts: Only happens at random and only after a reboot. Waking from Sleep mode isn't a problem. Pressing F4 function key for dual display does nothing when this happens. Closing lid doesn't seem to be related. (unless it is only after reboot.) using external magnet from laptop screen sensor sometimes triggers backlight to turn on but reboot back to square one with no LCD display. an external display always works fine. I have taken apart LCD, checked all wires and ribbons for loose connections or damage. I have replaced the Inverter. It doesn't seem to be heat related as I can put in sleep mode and resume fine when very hot. (external monitor works fine too). Sometimes the screen works fine as if there is not a problem at all. Even after a reboot... This is random. Any ideas out there? If it is a bad part... which one? The LCD seems to be fine. What are the odds of 2 bad inverters? The backlight is fine. The LCD wires/ribbons seem to be fine. I am at a loss. No warranty left and Gateway tech support is clueless. Thanks for any feedback that might help.

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• How to create a Windows 7 installation usb media from linux ? (to install Windows 7) - Help need to know better method

  - by Abel Coto

  I have been reading some web pages and posts here and in other forums about how to create a Windows 7 installation Usb media (to install windows 7 using a usb) from linux. I asked in technet about this , and they give me general ideas about how to do it I personally am not very familiar with linux, but basicaly all that you need to do... in whatever way you do it is the following: Format a usb flash drive, either fat32 or ntfs create a partition that is large enough to host the windows installation (give or take 3GB for 64bit, aroudn 2.5gb for 32bit) and mark that partition as active/bootable. Since this can be done with windows, but just as well with a tool like gparted, you should be able to do the same in debian. Once you have created that partition, mount the iso that you download, and copy all files starting from the root, into the root of the usb flash drive. That's all there's to it. There is a method that i found in various places,that is almost the same that the man of technet has said. But,there is a step,that in that method is done,that i don't know if it is really necessary,or not. Not allways dd works.Basically, the missing step was to write a proper boot sector to the usb stick, which can be done from linux with ms-sys. This works with the Win7 retail version. Here is the complete rundown again: Install ms-sys Check what device your usb media is asigned - here we will assume it is /dev/sdb. Delete all partitions, create a new one taking up all the space, set type to NTFS, and set it bootable: *# cfdisk /dev/sdb* Create NTFS filesystem: *# mkfs.ntfs -f /dev/sdb1* Mount iso and usb media: *# mount -o loop win7.iso /mnt/iso # mount /dev/sdb1 /mnt/usb* Copy over all files: *# cp -r /mnt/iso/* /mnt/usb/* Write Windows 7 MBR on usb stick: *# ms-sys -7 /dev/sdb* ...and you're done. Shouldn't the usb work without doing the last step "# ms-sys -7 /dev/sdb" or to make the usb bootable , is a must , not only to mark the partition as bootable ? Would be better use rsync instead of cp -r ? All this steps should be done as root, i suppose , or if not , chmod to 664 and chown the directories where are mounted the usb and the iso, no ? But i suppose that the easier thing is to copy the data as root , and that this will not affect to the data. Has anyone tried this method or some similar like copying the iso with dd ?

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• Using Sandcastle to build code contracts documentation

  - by DigiMortal

  In my last posting about code contracts I showed how code contracts are documented in XML-documents. In this posting I will show you how to get code contracts documented with Sandcastle and Sandcastle Help File Builder. Before we start, let’s download Sandcastle tools we need: Sandcastle Sandcastle Help File Builder Install Sandcastle first and then Sandcastle Help File Builder. Because we are generating only HTML based documentation we upload to server we don’t need any other tools. Of course, we need Cassini or IIS, but I expect it to be already there in your machine. Open your project and turn on XML-documentation for project and contracts. Now let’s run Sandcastle Help File Builder. We have to create new project and add our Visual Studio solution to this project. Now set the HelpFileFormat parameter value to be Website and let builder build the help. You have to wait about two or three minutes until help is ready. Take a look at your documentation that Sandcastle generated – you see not much information there about code contracts and their rules. Enabling code contracts documentation Now let’s include code contracts to documentation. Follow these steps: Open Sandcastle folder and make copy of vs2005 folder. Open CodeContracts folder (c:\program files\microsoft\contracts\) and unzip the archive from sandcastle folder. Copy all unzipped files to Sandcastle folder. Create (yes, create new) and build your Sandcastle Help File Builder documentation project again. Open help. In my case I see something like this now. As you can see then contracts are documented pretty well. We can easily turn on code contracts XML-documentation generation and all our contracts are documented automatically. To get documentation work we had to use Sandcastle help file fixes that are installed with code contracts and if we had previously Sandcastle Help File Builder project we had to create it from start to get new rules accepted. Once the documentation support for contracts works we have to do nothing more to get contracts documented.

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• Looking for Fiddler2 help. connection to gateway refused? Just got rid of a virus

  - by John Mackey

  I use Fiddler2 for facebook game items, and it's been a great success. I accessed a website to download some dat files I needed. I think it was eshare, ziddu or megaupload, one of those. Anyway, even before the rar file had downloaded, I got this weird green shield in the bottom right hand corner of my computer. It said a Trojan was trying to access my computer, or something to that extent. It prompted me to click the shield to begin anti-virus scanning. It turns out this rogue program is called Antivirus System Pro and is pretty hard to get rid of. After discovering the rogue program, I tried using Fiddler and got the following error: [Fiddler] Connection to Gateway failed.Exception Text: No connection could be made because the target machine actively refused it 127.0.0.1:5555 I ended up purchasing SpyDoctor + Antivirus, which I'm told is designed specifically for getting rid of these types of programs. Anyway, I did a quick-scan last night with spydoctor and malware bytes. Malware picked up 2 files, and Spydoctor found 4. Most were insignificant, but it did find a worm called Worm.Alcra.F, which was labeled high-priority. I don’t know if that’s the Anti-Virus Pro or not, but SpyDoctor said it got rid of all of those successfully. I tried to run Fiddler again before leaving home, but was still getting the "gateway failed" error. Im using the newest version of firefox. When I initially set up the Fiddler 2.2.8.6, I couldn’t get it to run at first, so I found this faq on the internet that said I needed to go through ToolsOptionsSettings and set up an HTTP Proxy to 127.0.0.1 and my Port to 8888. Once I set that up and downloaded this fiddler helper as a firefox add-on, it worked fine. When I turn on fiddler, it automatically takes my proxy setting from no proxy (default) to the 127.0.0.1 with Port 8888 set up. It worked fine until my computer detected this virus. Anyway, hopefully I've given you sufficient information to offer me your best advice here. Like I said, Spydoctor says the bad stuff is gone, so maybe the rogue program made some type of change in my fiddler that I could just reset or uncheck or something like that? Or will I need to completely remove fiddler and those dat files and rar files I downloaded? Any help would be greatly appreciated. Thanks for your time.

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• Looking for Fiddler2 help. connection to gateway refused...just got rid of a virus?

  - by john mackey

  I use Fiddler2 for facebook game items, and it's been a great success. I accessed a website to download some dat files I needed. I think it was eshare, ziddu or megaupload, one of those. Anyway, even before the rar file had downloaded, I got this weird green shield in the bottom right hand corner of my computer. It said a Trojan was trying to access my computer, or something to that extent. It prompted me to click the shield to begin anti-virus scanning. It turns out this rogue program is called Antivirus System Pro and is pretty hard to get rid of. After discovering the rogue program, I tried using Fiddler and got the following error: [Fiddler] Connection to Gateway failed. Exception Text: No connection could be made because the target machine actively refused it 127.0.0.1:5555 I ended up purchasing SpyDoctor + Antivirus, which I'm told is designed specifically for getting rid of these types of programs. Anyway, I did a quick-scan last night with spydoctor and malware bytes. Malware picked up 2 files, and Spydoctor found 4. Most were insignificant, but it did find a worm called Worm.Alcra.F, which was labeled high-priority. I don’t know if that’s the Anti-Virus Pro or not, but SpyDoctor said it got rid of all of those successfully. I tried to run Fiddler again before leaving home, but was still getting the "gateway failed" error. Im using the newest version of firefox. When I initially set up the Fiddler 2.2.8.6, I couldn’t get it to run at first, so I found this faq on the internet that said I needed to go through ToolsOptionsSettings and set up an HTTP Proxy to 127.0.0.1 and my Port to 8888. Once I set that up and downloaded this fiddler helper as a firefox add-on, it worked fine. When I turn on fiddler, it automatically takes my proxy setting from no proxy (default) to the 127.0.0.1 with Port 8888 set up. It worked fine until my computer detected this virus. Anyway, hopefully I've given you sufficient information to offer me your best advice here. Like I said, Spydoctor says the bad stuff is gone, so maybe the rogue program made some type of change in my fiddler that I could just reset or uncheck or something like that? Or will I need to completely remove fiddler and those dat files and rar files I downloaded? Any help would be greatly appreciated. Thanks for your time.

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• Help needed setting up nginx to serve static files.

  - by Catalina

  Hi Guys, I'm trying to setup nginx to serve static files. Basically all I need is to have http://mydomain.com/site_media/ point to /var/django/myproject/site_media. I have tried so many configurations and when I test it I always get a 404 error for static files. Can anyone please tell me what I'm doing wrong or how I should be setting this up? This is my current nginx configuration file. user www-data; worker_processes 1; #error_log /usr/local/nginx/logs/error.log; #pid /usr/local/nginx/logs/nginx.pid; events { worker_connections 1024; use epoll; } http { # Enumerate all the Tornado servers here upstream frontends { server 127.0.0.1:8000; server 127.0.0.1:8001; server 127.0.0.1:8002; server 127.0.0.1:8003; } include mime.types; default_type application/octet-stream; #access_log /usr/local/nginx/logs/access.log; keepalive_timeout 65; proxy_read_timeout 200; sendfile on; tcp_nopush on; tcp_nodelay on; gzip on; gzip_min_length 1000; gzip_proxied any; gzip_types text/plain text/html text/css text/xml application/x-javascript application/xml application/atom+xml text/javascript; proxy_next_upstream error; server { listen 80; # Allow file uploads client_max_body_size 50M; location ^~ /site_media/ { root /var/django/myproject/site_media; if ($query_string) { expires max; } } location = /favicon.ico { rewrite (.*) /site_media/favicon.ico; } location = /robots.txt { rewrite (.*) /site_media/robots.txt; } location / { proxy_pass_header Server; proxy_set_header Host $http_host; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Scheme $scheme; proxy_pass http://frontends; } } #include /usr/local/nginx/sites-enabled/*; } Thanks, Cata

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• NGINX rewrite rules help. Redirect not working and want to get rid of index.php in urls

  - by Tamerax

  hey! I have 2 questions for nginx users. 1) I'm trying to setup my joomla server onto my new linode running NGINX and after much (like days) of searching and testing, I finally have a config that works with with SEF url plugins...sorta. I was using an apache system on the old server and it used mod_rewrite and life was fine in terms of SEF. Since NGINX doesn't have mod_rewrite, I found something that works BUT it constantly leaves index.php in the urls. ex: http://mysite.com/index.php/forum i want it to be just http://mysite.com/forum but without mod_rewrite it doesn't seem to be possible in joomla that i'm aware of. I know in wordpress it IS possible but I have to use a plugin. Here is my config file: server { listen 80; server_name mysite.com www.mysite.com; access_log /home/public_html/mysite.com/log/access.log; error_log /home/public_html/mysite.com/log/error.log; root /home/public_html/mysite.com/public/; large_client_header_buffers 4 8k; # prevent some 400 errors index index.php index.html; fastcgi_index index.php; location / { expires 30d; error_page 404 = @joomla; log_not_found off; } # Rewrite location @joomla { rewrite ^(.*)$ /index.php?q=last; } # Static Files location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico)$ { access_log off; expires 30d; } # PHP location ~ \.php { keepalive_timeout 0; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include /usr/local/nginx/conf/fastcgi_params; fastcgi_param SCRIPT_FILENAME /home/public_html/mysite.com/public /$fastcgi_script_name; } } 2) second question should be easy but i can't get it to work. I want to use the same config I posted above and have either mysite.com or www.mysite.com both forward to mysite.com/portal. Basically when you hit up the front page with or without the www, it all gets forwarded to a sub directory on the server I called Portal. I have tried several variations of: rewrite ^/(.*) http://www.example.com/portal/$1 permanent; but it usually ends with firefox telling me there is some crazy loop happening the address bar saying something like mysite.com/portalportalportalportalportal.........on and on. So, any help on either of these issues would be awesome!! Thanks!!

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• Need help understanding Generics, How To Abstract Types Question.

  - by kmacmahon

  I could use some really good links that explain Generics and how to use them. But I also have a very specific question, relater to working on a current project. Given this class constructor: public class SecuredDomainViewModel<TDomainContext, TEntity> : DomainViewModel<TDomainContext, TEntity> where TDomainContext : DomainContext, new() where TEntity : Entity, new() public SecuredDomainViewModel(TDomainContext domainContext, ProtectedItem protectedItem) : base(domainContext) { this.protectedItem = protectedItem; } And its creation this way: DomainViewModel d; d = new SecuredDomainViewModel<MyContext, MyEntityType>(this.context, selectedProtectedItem); Assuming I have 20 different EntityTypes within MyContext, is there any easier way to call the constructor without a large switch statement? Also, since d is DomainViewModel and I later need to access methods from SecuredDomainViewModel, it seems I need to do this: if (((SecuredDomainViewModel<MyContext, MyEntityType>)d).CanEditEntity) But again "MyEntityType" could actually be one of 20 diffent types. Is there anyway to write these types of statements where MyEntityType is returned from some sort of Reflection?

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• Need to execute an ajax call incrementally after fixed time periods in javascript?

  - by Ali

  HI guys, I need to be able to make an ajax call to be made after every few minutes. Basically the ajax call would be to check on new emails in an inbox. If there are new emails it would download the emails to a database. I got all the server side code set up fine. I just need to know how do I set up on the front end the part where the ajax call is made after every few minutes plus it should be set up such that we don't end up with parallel ajax calls being made i.e if the ajax call hasn't returned a response it shouldn't start a new ajax request.

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• Why do I need an IoC container as opposed to straightforward DI code?

  - by Vadim

  I've been using Dependency Injection (DI) for awhile, injecting either in a constructor, property, or method. I've never felt a need to use an Inversion of Control (IoC) container. However, the more I read, the more pressure I feel from the community to use an IoC container. I played with .NET containers like StructureMap, NInject, Unity, and Funq. I still fail to see how an IoC container is going to benefit / improve my code. I'm also afraid to start using a container at work because many of my co-workers will see code which they don't understand. Many of them may be reluctant to learn new technology. Please, convince me that I need to use an IoC container. I'm going to use these arguments when I talk to my fellow developers at work.

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• Need to parse HTML document for links-- use a library like html5lib or something else?

  - by Luinithil

  I'm a very newbie webpage builder, currently working on creating a website that needs to change link colours according to the destination page. The links will be sorted into different classes (e.g. good, bad, neutral) by certain user input criteria-- e.g. links with content the user would find of interest is colored blue, stuff that the user (presumably) doesn't want to see is colored as normal text, etc. I reckon I need a way to parse the webpage for links to the content (stored in MySQL database), change the colors for all the links on the page (so I need to be able to change the link classes in the HTML as well) before outputting the adapted page to the user. I read that regex is not a good way to find those links-- so should I use a library, and if so, is html5lib good for what I'm doing?

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• What kind of knowledge do you need to invent a new programming language?

  - by systempuntoout

  I just finished to read "Coders at works", a brilliant book by Peter Seibel with 15 interviews to some of the most interesting computer programmers alive today. Well, many of the interviewees have (co)invented\implemented a new programming language. Some examples: Joe Armstrong: Inventor of Erlang L. Peter Deutsch: implementer of Smalltalk-80 Brendan Eich: Inventor of JavaScript Dan Ingalls: Smalltalk implementor and designer Simon Peyton Jones: Coinventor of Haskell Guy Steele: Coinventor of Scheme Is out of any doubt that their minds have something special and unreachable, and i'm not crazy to think i will ever able to create a new language; i'm just interested in this topic. So, imagine a funny\grotesque scenario where your crazy boss one day will come to your desk to say "i want a new programming language with my name on it..take the time you need and do it", which is the right approach to studying this fascinating\intimidating\magic topic? What kind of knowledge do you need to model, design and implement a brand new programming language?

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• What kind of knowledge you need to invent a new programming language?

  - by systempuntoout

  I just finished to read "coders at works", a brilliant book by Peter Seibel with 15 interviews to some of the most interesting computer programmers alive today. Well, many of the interviewees have (co)invented\implemented a new programming language. For example: * Joe Armstrong: Inventor of Erlang * L. Peter Deutsch: implementer of Smalltalk-80 * Brendan Eich: Inventor of JavaScript * Dan Ingalls: Smalltalk implementor and designer * Simon Peyton Jones: Coinventor of Haskell * Guy Steele: Coinventor of Scheme Is out of any doubt that their minds have something special and unreachable, and i'm not crazy to think i will ever able to create a new language; i'm just interested in this topic. So, imagine a funny\grotesque scenario where your crazy boss one day will come to your desk to say "i want a new programming language with my name on it..take the time you need and do it", what will you start to study? What kind of knowledge do you need to model, design and implement a brand new programming language?

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• Need to upload files to google docs from my application and store reference to the uploaded file...

  - by Ali

  Hi guys - I'm working on a basic google applications based system. Like I earlier defined I'm building a simple ordering system and to each order placed I attach a file or document. I would like to be able to set it such that whatever file I upload is uploaded into google docs and I somehow am able to maintain a reference to that file from my own application i.e these files are concerned with such and such order. My application is google application based hopefully and I'm building it to be such for later on deployment into the cloud. How do I start on this and what do I need to do? Are there already working widgets I can use and apply or would I need to create my own customised solution for this? I'm working in Php MySQL.

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• Need to upload binary to test in-app purchase?

  - by psychotik

  Opinion seems to be split on whether an app binary is required to be uploaded to iTunes Connect before a testing an in-app purchase. I've created the app (no binary uploaded yet), created the in-app purchase, enabled by App ID for in-app purchase and marked the purchase "available for sale". I've followed the instructions in the guide as far as I can tell. However, when I try it on my device I am unable to retrieve the products - SKProductRequest returns my request product as invalid. Any suggestions what I need to do? Does the in-app purchase product need to "Developer Approved" for this to work? Any definitive answer on whether a binary needs to be uploaded? I would like to avoid that if possible but am willing to do it if required.

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• Why does mysqldump need to be fully pathed when called from a controller or model?

  - by Kris

  When I call mysqldump from a controller or model I need to fully path the binary, when I call it from Rake I don't need to. If I do not fully path I get a zero byte file... I can confirm both processes are run using the same user. # Works in a controller, model and Rake task system "/usr/local/mysql/bin/mysqldump -u root #{w.database_name} > #{target_file}" # Only works in a Rake task system "mysqldump -u root #{w.database_name} > #{target_file}" If I call the Rake task from the action it also fails (zero byte file). OS: Mac Ruby 1.8.6 EDIT: I use Etc.getpwuid(Process.uid).name to get the User of the current process

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• Will i need two database connection for the following created trigger in MySQL?

  - by Parth

  Will i need two database connection for the following created trigger in MySQL? "DELIMITER $$ DROP TRIGGER `update_data` $$ CREATE TRIGGER `update_data` AFTER UPDATE on `jos_menu` FOR EACH ROW BEGIN IF (NEW.menutype != OLD.menutype) THEN INSERT INTO jos_menuaudit set menuid=OLD.id, oldvalue = OLD.menutype, newvalue = NEW.menutype, field = 'menutype'; END IF; IF (NEW.name != OLD.name) THEN INSERT INTO jos_menuaudit set menuid=OLD.id, oldvalue = OLD.name, newvalue = NEW.name, field = 'name'; END IF; IF (NEW.alias != OLD.alias) THEN INSERT INTO jos_menuaudit set menuid=OLD.id, oldvalue = OLD.alias, newvalue = NEW.alias, field = 'alias'; END IF; END$$ DELIMITER ;" I am using PHP for coding.... EDITED To Execute the previous trigger, will i need to have two DB connection for it? likewise: mysql_select_db('pranav_test'); mysql_select_db('information_schema');

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• Query data using LINQ to SQL and Entity Framework with foreign key? (Help me please)

  - by The Wind

  Hello! There is a problem I need help with your query on the data using LINQ to SQL and Entity Framework (I'm using Visual Studio 2010). My picure here: http://img.tamtay.vn/files/photo2/2010/5/28/10/962/4bff3a3b_1093f58f_untitled-1.gif I have three tables: tbl NewsDetails tblNewsCategories tblNewsInCategories (See screen 1 in my picture) Now, I want to retrieve records in the tblNewsDetails table, with condition: CategoryId=1, as the following results: (See screen 2 in my picture) But NewsID and CategoryId in tblNewsInCategories table is two foreign key, I do not see them and I do not know how to use them in your code. My code has errors: (See screen 3 in my picture) Please help me. Thanks! (I am a new member, should not have the right to insert images)

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• For iphone dev, do you need to learn cocoa?

  - by Blankman

  For iphone dev, do you need cocoa skills or just objective c?

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• Help to understand and recode javascript function to deal with special characters.

  - by Cesar Lopez

  Hi all, I am trying to rewrite a javascript function since I was told this function its a bit nasty peace of code and it could be nicely written by a very kind user from here. I have been trying to understand what the function does, therefore I could rewrite it properly, but since I dont fully understand how it works its a very difficult task. Therefore I am looking for help and directions (NOT THE SOLUTION AS I WANT TO LEARN MYSELF) to understand and rewrite this function in a nicer way. The function its been made for dealing with special characters, and I know that it loops through the string sent to it, search for special characters, and add what it needs to the string to make it a valid string. I have been trying to use value.replace(/"/gi,"/""), but surely I am doing it wrong as it crashes. Could anybody tell me where to start to recode function? Any help would be appreciated. My comments on the function are in capital letters. Code <script type="text/javascript"> function convertString(value){ for(var z=0; z <= value.length -1; z++) { //if current character is a backslash||WHY IS IT CHECKING FOR \\,\\r\\n,and \\n? if(value.substring(z, z + 1)=="\\" && (value.substring(z, z + 4)!="\\r\\n" && value.substring(z, z + 2)!="\\n")) {//WHY IS IT ADDING \\\\ TO THE STRING? value = value.substring(0, z) + "\\\\" + value.substring(z + 1, value.length); z++; } if(value.substring(z, z + 1)=="\\" && value.substring(z, z + 4)=="\\r\\n") {//WHY IS IT ADDING 4 TO Z IN THIS CASE? z = z+4; } if(value.substring(z, z + 1)=="\\" && value.substring(z, z + 2)=="\\n") {//WHY IS IT ADDING 2 TO Z IN THIS CASE? z = z+2; } } //replace " with \" //loop through each character for(var x = 0; x <= value.length -1; x++){ //if current character is a quote if(value.substring(x, x + 1)=="\""){//THIS IS TO FIND \, BUT HAVENT THIS BEEN DONE BEFFORE? //concatenate: value up to the quote + \" + value AFTER the quote||WHY IS IT ADDING \\ BEFORE \"? value = value.substring(0, x) + "\\\"" + value.substring(x + 1, value.length); //account for extra character x++; } } //return the modified string return(value); } <script> Comments within the code on capital letters are my questions about the function as I mention above. I would appreciate any help, orientation, advise, BUT NOT THE SOLUTION PLEASE AS I DO WANT TO LEARN.

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• Is MacBook powerful enough to do Ipad development? or do I need a MacBook Pro?

  - by ronaldwidha

  The title probably says it all. Considering an ipad's processor is nothing compared to a macbook, I would think a Macbook should be more than capable to run the simulator. However, not knowing much about iphone/ipad development, I'd like to get some opinions on this. for e.g. how many apps are typically need to be run for ipad dev (editor, debugger, perf monitor, trace log, etc). are these apps resource (memory, cpu) intensive? please do not take into consideration the actual image, 3d, video, sound development. I understand one would need quite a beefy machine to produce these type of creative assets. What I'm looking at is a machine to do code development, physics, putting together the produced assets (images, vector graphics, 3d video, sound, etc).

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