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• Preserving text formatting for dynamic website

  - by Mohit

  Hello Folks, I am facing a problem while creating a dynamic website. I am building it for some pharma company, which have many products. The problem is, every product have different sections of description, and have to be formatted differently. I wanted to store all the product descriptions in the database, but at the same time preserve the formatting of each description. I also plan to provide an admin interface, where they could edit the product information themselves. I could use Joomla or any other CMS for that purpose, but i wanted to know if i want to build such a system of my own, where i could format the text in an editor and them save that thing into database and when i retrieve it, i get the same formatting. How could i do this? Also i wanted to do this in PHP. Thanks -- Mohit

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• Are Cross Domain Flash Local Shared Objects (LSO aka Flash Cookie) possible

  - by user85155

  Hi, I found several solutions for creating Flash LSOs from JavaScript (for example: http://www.nuff-respec.com/technology/cross-browser-cookies-with-flash ) If Page (www.hostA.com/index.html) and the .swf file are from the same site, everything works fine. No I'm trying to load the page form www.hostA.com/index.html, which includes www.hostB.com/flashcookie.swf (different sites). But then I cannot read or store the LSO. I have tried several configurations (crossdomain.xml, Security.allowDomain("...") ), but nothing works. Is this kind of cross domain access to a LSO possible? Thanks -stephan

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• PHP Session variables not passing across pages

  - by mitch

  Common problem, but I'm stumped. Session variables are passing across pages on my local (localhost) deployment, but not on my (www) host. I use a common includes file for each page with this code: $sessionDomain = "/"; @ini_set("session.cookie_path",$sessionDomain); $sessionName = "ccSID".md5('/store/'); session_name($sessionName); session_start(); I confirmed that the session ID cookie (ccSIDxxxxx...) remains the same across pages in my browser, but session variables don't seem to hold up when changing to a page in a different directory.

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• Java type for date/time when using Oracle Date with Hibernate

  - by Marcus

  We have a Oracle Date column. At first in our Java/Hibernate class we were using java.sql.Date. This worked but it didn't seem to store any time information in the database when we save so I changed the Java data type to Timestamp. Now we get this error: springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.an notation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [margin-service-domain -config.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreatio nException: Error creating bean with name 'sessionFactory' defined in class path resource [m-service-doma in-config.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Wrong column type: CREATE_TS, expected: timestamp Any ideas on how to map an Oracle Date while retaining the time portion? Update: I can get it to work if I use the Oracle Timestamp data type but I don't want that level of precision ideally. Just want the basic Oracle Date.

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• Catching an exception when trying to launch a URL service from within Safari on an iPhone

  - by Ariel

  Hey guys, I was wondering if anyone knows - if I have an iPhone app that is registered with a URL service (e.g. alocola://), which means another app can invoke it by calling its URL - is there any way to embed this URL in an HTML page, and catch the exception if the app is not installed on the user's iPhone? Or in other words / more details: I would like to write an app that conforms to some URL invocation (like alocola:// is doing), but would like this app to be launched from a web page read by mobile Safari. However, if the app is not installed on the user's iphone, I would like to be able to display a note saying "you must have the alocola app installed on your iPhone, please download it from the app store by clicking here". Is there a way (perhaps using javascript) to have Safari indicate that the URL cannot be invoked, and catch this in order to display an intelligent message? Thanks :-) Ariel

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• ruby/ruby on rails memory leak detection

  - by Josh Moore

  I wrote a small web app using ruby on rails, its main purpose is to upload, store, and display results from xml(files can be up to several MB) files. After running for about 2 months I noticed that the mongrel process was using about 4GB of memory. I did some research on debugging ruby memory leaks and could not find much. So I have two questions. Are there any good tools that can be used to find memory leaks in Ruby/rails? What type of coding patterns cause memory leaks in ruby?

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• Removing Divider Line from UISplitViewController

  - by tilomitra

  Guys, I know a similar question exists but the thread seems to be inactive, and I really would like this question to be answered. It's been annoying me for a few days now. I'm wondering how to remove the divider line between the Master and Detail view in the UISplitViewController. I know its possible to remove/hide/cover it up because I see some apps in the store without that line. I have tried setting backgroundColor to clearColour on my views but to no avail. So SO community, you're my only hope!

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• C# Object Creation from Datatable

  - by Jonesy

  Hi Folks, Im just getting my head round C#. I've been creating classes and objects so say i created a class called Member: public class Member { public int MemberID; public string FirstName; public string LastName; public string UserName; } and i create a new object of that class by doing this: Member Billy = new Member(); Billy.UserName = "Jonesy"; Billy.FirstName = "Billy"; Billy.LastName = "Jones"; Thats all fine but what if I've queried a database and gotten back 5 members, can I create objects on the fly? Or what is the best way to store these members in memory? I've used VB.Net where I would just add them into a datatable. But I've never really done any object-oriented programming before and thought since I'm learning C sharp nows the best time to learn OOP.. Any help most appreciated! Jonesy

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• How can I prevent an unintentional DDOS running ColdFusion 8 with IIS 6?

  - by Eric Belair

  We had an interesting outage today on one of our client's websites. Out of nowhere, the website was inaccessible. The website runs by itself on a dedicated physical Windows 2000 server (probably overkill, I know, but that's a discussion for a different day). After restarting IIS and ColdFusion Application Service, the problem came back several times. My initial thought was that it was a DNS issue, which happens occasionally - the last time it happened was after Hurricane Sandy when we our ISP was out, and we had to make some network config changes. But, it was not a DNS issue. My second thought was that it was a DDOS attack, but, there's very little reason anyone would want to take this site down. When we called our ISP, the operator on the other end noted that traffic was spiking significantly. As it turned out, the client had unintentionally caused a DDOS on the website, after they FTPed a very large video file, and then mass emailed a link to it. Hundreds of people clicked the link and brought the site to its knees. I am primarily a Website Programmer, but I often have to contribute to server administration at times. Sadly, I'm the resident ColdFusion and IIS expert, but I don't have a lot of experience with this issue. What are some basic steps that I can take to prevent this from happening in the future, since we cannot always control what files the client posts to the website. Here are some ideas I had, but I'm unsure of the impact: Limit the number of connections in IIS. Put media files on a separate server (like an Amazon site, etc.). File requests of this type currently behind a server-script (i.e. /www.site.com/viewFile.cfm?fileId=1424545, where the fileId references a file off the webroot) that logs requests, and pushes the file to the browser using CFCONTENT. I could edit this script to reject requests when they exceed a certain amount in a given time-frame (i.e. a 5MB can be accessed globally 10 times in an hour). This may cause some users frustration, but, if hundreds of users are attempting to view the file, the site is going to crash anyways, as it did today, which is way more frustrating, since there is no "pretty" message explaining why they can't get to the file. I'm open to any suggestions, as I'm continuing my research to report to the CTO with the best options, so that we can put a solution into effect. Thank you.

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• HTMLencode HTMLdecode

  - by elenor

  I have a text area and I want to store the text entered by user in database with html formatting like paragraph break, numbered list. I am using HTMLencode and HTMLdecode for this. Sample of my code is like this: string str1 = Server.HtmlEncode(TextBox1.Text); Response.Write(Server.HtmlDecode(str1)); If user entered text with 2 paragraphs, str1 shows characters \r\n\r\n between paragraphs. but when it writes it to screen, just append 2nd paragraph with 1st. While I'm decoding it, why doesn't it print 2 paragraphs?

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• How to move a ruby on rails application to a new server

  - by ManiacZX

  I have a rails app on an old Ubuntu server I need to move onto a new machine. I haven't worked with ruby on rails so I don't really know anything about the structure of the app. I want to load this onto an Ubuntu 8.04 AMI on Amazon EC2 and am looking for any information regarding the migration process such as: Do I copy over the entire folder defined as the application root in the mongrel config (for ex: /u/apps/myapp/current) or just certain folders? Am I looking for trouble if I go with the latest versions of ruby and the various gems? Any general gotchas to look out for in the process. Current server information: root@webnode001:/# cat /proc/version Linux version 2.6.15-27-server (buildd@terranova) (gcc version 4.0.3 (Ubuntu 4.0.3-1ubuntu5)) #1 SMP Fri Dec 8 18:43:54 UTC 2006 root@webnode001:/# rails -v Rails 1.2.3 root@webnode001:/# mongrel_rails cluster::configure --version Version 1.0.1 root@webnode001:/# gem -v 0.9.0 root@webnode001:/# gem list -l *** LOCAL GEMS *** actionmailer (1.3.3, 1.2.5) Service layer for easy email delivery and testing. actionpack (1.13.3, 1.12.5) Web-flow and rendering framework putting the VC in MVC. actionwebservice (1.2.3, 1.1.6) Web service support for Action Pack. activerecord (1.15.3, 1.15.2, 1.14.4) Implements the ActiveRecord pattern for ORM. activesupport (1.4.2, 1.4.1, 1.3.1) Support and utility classes used by the Rails framework. cgi_multipart_eof_fix (2.1) Fix an exploitable bug in CGI multipart parsing which affects Ruby <= 1.8.5 when multipart boundary attribute contains a non-halting regular expression string. daemons (1.0.7, 1.0.5, 1.0.4, 1.0.2) A toolkit to create and control daemons in different ways eventmachine (0.7.2, 0.7.0) Ruby/EventMachine socket engine library fastercsv (1.2.0, 1.1.0) FasterCSV is CSV, but faster, smaller, and cleaner. fastthread (1.0) Optimized replacement for thread.rb primitives ferret (0.11.4) Ruby indexing library. gem_plugin (0.2.2, 0.2.1) A plugin system based only on rubygems that uses dependencies only mongrel (1.0.1, 0.3.13.4) A small fast HTTP library and server that runs Rails, Camping, Nitro and Iowa apps. mongrel_cluster (0.2.1) Mongrel plugin that provides commands and Capistrano tasks for managing multiple Mongrel processes. mysql (2.7) MySQL/Ruby provides the same functions for Ruby programs that the MySQL C API provides for C programs. piston (1.3.3) Piston is a utility that enables merge tracking of remote repositories. rails (1.2.3, 1.1.6) Web-application framework with template engine, control-flow layer, and ORM. rake (0.7.3, 0.7.1) Ruby based make-like utility. sources (0.0.1) This package provides download sources for remote gem installation swiftiply (0.5.1) A fast clustering proxy for web applications.

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• Can django's auth_user.username be varchar(75)?

  - by perrierism

  Django's auth_user.username field is 30 characters. That means you can't have auth_user.username store an email address. If you want to have users authenticate based on their email address it would seem you have to do some wonky stuff like writing your own authentication backend which authenticates based on (email, password) instead of (username, password) and furthermore, figuring out what you're going to put in the username field since it is required and it is a primary key. Do you put a hash in there, do you try to put the id in there... bleh! Why should you have to write all this code and consider edge cases simply because username is too small for your (farily common) purposes? Is there anything wrong with running alter table on auth_user to make username be varchar(75) so it can fit an email? What does that break if anything?

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• Preventing $.POST hijack

  - by Jamie

  I'm currently building a facebook application. Lets say I have a variable $uid that identifies the user so I can store this in my database along with their submitted data. I pass $uid and $data via json encoded values using $.post. However, this doesn't prevent someone changing $uid to save data as someone else. I have been thinking about how to overcome this, so far I haven't found a solution apart from: create database with $uid $secretkey on first page load. When $.post send $secretkey with the post and then retrieve the $uid from the database. Would this be the correct approach to use?

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• Persist an object that is not marked as serializable

  - by lasseeskildsen

  Hi, I need to persist an object that is not marked with the serializable attribute. The object is from a 3rd party library which I cannot change. I need to store it in a persist place, like for example the file system, so the optimal solution would be to serialize the object to a file, but since it isn't marked as serializable, that is not a straight forward solution. It's a pretty complex object, which also holds a collection of other objects. Do you guys have any input on how to solve this? The code will never run in a production environment, so I'm ok with almost any solution and performance.

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• Storing Interface type in ASP.NET Profile

  - by NathanD

  In my ASP.NET website all calls into the data layer return entities as interfaces and the website does not need to know what the concrete type is. This works fine, but I have run into a problem when trying to store one of those types into the user Profile. My interface implements ISerializable, like the following: public interface IInsured : IPerson, IEntity, ISerializable and the concrete type in the datalayer does implement ISerializable. My Profile property in web.config is: <add name="ActiveInsured" type="FacadeInterfaces.IInsured" serializeAs="Binary" defaultValue="[null]"/> It compiles just fine, but I get a runtime error on Profile.Save() saying that the interface cannot be serialized. I have also tried it with serializeAs="Xml". I thought that if my interface implemented ISerializable it would work. Anybody had this problem before or know of a workaround?

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• External config file to be used by multiple DLLs.

  - by vikp

  Hi, I have multiple DLLs that are used to read/write data into my database. There is a presentation layer DLL and a data access layer DLL. I want these DLLs to share a set of the connection strings. My idea is to store the connection string in a seperate DLL in the external configuration file. I'm not sure whether it's a good idea and whether I can reference that external DLL in both presentation and data access layers. The other question is whether I should write a helper class to read the data from the external config file or whether I should be using built in .Net methods? Thank you

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• Passing parameters on the stack

  - by oxinabox.ucc.asn.au

  When you pass parameters to a function on the cpu stack, You put the parameters on then JSR puts the return address on the stack. So that means in your function you must take the top item of the stack (the return address) before you can take the others off) eg is the following the correct way to go about it: ... |Let’s do some addition with a function, MOVE.L #4, -(SP) MOVE.L #5, -(SP) JSR add |the result of the addition (4+5) is in D0 (9) ... add: MOVE.L (SP)+, A1 |store the return address |in a register MOVE.L (SP)+, D0 |get 1st parameter, put in D0 MOVE.L (SP)+, D2 |get 2nd parameter, put in D2 ADD.L D2, D0 |add them, |storing the result in D0 MOVE.L A1, -(SP) |put the address back on the |Stack RTS |return

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• Java Spam Filter

  - by JackSparrow

  I'm trying to create a spam filter in Java using the Bayesian algorithm. I use a text file that contains email messages and split the tokens using regex, storing these values into a hashmap. My problem is, with regex, the email addresses are split so instead of: [email protected] regex causes the token to be: john smith example The same holds true for ip addresses, so for example, instead of: 192.55.34.322 regex splits the tokens to be: 192 55 34 322 So does anybody know of a way that I could read the email messages and store their contents as is?

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• Overriding SQLMembershipProvider in C#

  - by vikp

  Hi, Is there built in methods into .net framework to do the following: Get role GUID from user name/user GUID Get role name from role GUID So far I have been sending queries to the asp_roles and asp_users tables to obtain that information and I'm wondering if there is a nicer way of doing this? I have the following methods that I store in the ASPUtilities class: getRoleGUID(guid userGuid) { LINQ joins } getRoleGuid(string userName) { LINQ joins } getRoleName(guid roleGuid) { LINQ joins } Thank you EDIT: I have just looked into extending SQLMembershipProvider examples. Few examples completely override the SQLMembershipProvider, but I think what I'm interested is just adding few extra methods to deal with the roles by using LINQ. Is this feasible?

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• Best practice for storing global data in PHP?

  - by user281434

  Hi I'm running a web application that allows a user to log in. The user can add/remove content to his/her 'library' which is displayed on a page called "library.php". Instead of querying the database for the contents of the users library everytime they load "library.php", I want to store it globally for PHP when the user logs in, so that the query is only run once. Is there a best practice for doing this? fx. storing their library in an array in a session? Thanks for your time

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• Python objects as userdata in ctypes callback functions

  - by flight

  The C function myfunc operates on a larger chunk of data. The results are returned in chunks to a callback function: int myfunc(const char *data, int (*callback)(char *result, void *userdata), void *userdata); Using ctypes, it's no big deal to call myfunc from Python code, and to have the results being returned to a Python callback function. This callback work fine. myfunc = mylib.myfunc myfunc.restype = c_int myfuncFUNCTYPE = CFUNCTYPE(STRING, c_void_p) myfunc.argtypes = [POINTER(c_char), callbackFUNCTYPE, c_void_p] def mycb(result, userdata): print result return True input="A large chunk of data." myfunc(input, myfuncFUNCTYPE(mycb), 0) But, is there any way to give a Python object (say a list) as userdata to the callback function? In order to store away the result chunks, I'd like to do e.g.: def mycb(result, userdata): userdata.append(result) userdata=[] But I have no idea how to cast the Python list to a c_void_p, so that it can be used in the call to myfunc. My current workaround is to implement a linked list as a ctypes structure, which is quite cumbersome.

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• How do I properly unit test a Django session?

  - by thebossman

  The behavior of Django sessions changes between "standard" views code and test code, making it unclear how test code is written for sessions. Googling this yields two relevant discussions about this issue: Easier manipulation of sessions by test client test.Client.session.save() raises error for anonymous users I'm confused because both tickets have different ways of dealing with this problem and they were both Accepted. I assume this means they were patched and the behavior is now different. I also don't know to which versions these patches would pertain. If I'm writing a unit test in Django 1.0, how would I set up my session store for sessions to work as they do in the browser?

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• How can I tell datacontext I've updated a record via StoreProcedure

  - by Ldsenow

  Hi Geeks, I've a stroe procedure to update a record and after running it I use LinqToSql to delete the record. I know it is weird but I just want to test how smart the datacontext it is and understand how it works. Since the datacontext caches the results so any change via it can be recorded but now I use a store procedure to update something, it would not know. So when I try to delete it, an exception comes out "Row not found or changed". How I can tell the datacontext what I have updated? If I can do so the problem will sovle.

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• BFS traversal of directed graph from a given node

  - by p1

  Hi, My understanding of basic BFS traversal for a graph is: BFS { Start from any node . Add it to que. Add it to visited array While(que is not empty) { remove head from queue. Print node; add all unvisited direct subchilds to que; mark them as visited } } However, if we have to traverse a DIRECTED graph from a given node and not all nodes are accessible from the given node [directly or indirectly] how do we use BFS for the same. Can you please explain in this graph as well: a= b = d = e = d a= c = d Here if the starting node is b , we never print a and c. Am I missing something in the algorithm. P.S: I used "HashMap adj = new HashMap();" to create the adjacencey list to store graph Any pointers are greatly appreciated. Thanks.

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• Databound Checkbox list with textboxes in a webform

  - by zSysop

  Hi all, I'm having trouble coming up with a solution for the following problem and i was wondering if someone here would help me out. I need to pull a list of supplies from a db table and list them along with two textboxes (one for quantity, and another for manufacturer) so the list would look something like this. checkbox for supply 1 | Quantity | Manufacturer checkbox for supply 2 | Quantity | Manufacturer .. I also need to store all of the checked items in a db table. I'm not sure how i should go about doing this. I've heard some talk about a repeater control being useful but i've not come across any examples that do this type of thing. Thanks in advance

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