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• Mysql retrieve polygon data

  - by dskanth

  Hi, i have been developing a site that stores spatial data in mysql database, like that of buildings, gardens, etc. in the form of polygons (latitudes and longitudes). I want to know how to retrieve polygon data in mysql. I have seen this sample query to insert a polygon data: http://amper.110mb.com/SPAT/mysql_initgeometry2.htm But now i want to know how to retrieve data from the table, based on certain constraints like: "where latitude < 9.33 and longitude > 22.4" Also how do i find whether a point lies inside or outside of a polygon

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• Access the internal phonebook

  - by L0rdAli3n

  For more than two days now, I'm trying to grab a list of all contacts, from the internal phonebook (no facebook-, gmail- or twittercontacts) with their family- and givenname. I managed to get a list with all contacts, socialcontacts included. So I looked at the account_type and saw that on my HTC Desire they were all "com.htc.android.pcsc" and I was like "Great, I just have to filter the whole list". But then all people with non-htc android cellphones would be unable to use my app, if I would hardcode this filter. Next idea was to let the user choose which account he wants to use, but unfortunately the "com.htc.android.pcsc" didn't appear in the list I got from the AccountManager?!? So my question is: Is there any standardized way to access the internal phonebook? I'm really stuck with that and any hint is highly appreciated!

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• Where is Win7's jump list data stored?

  - by DigiMarco

  As per Jumplist Extender, I'm trying to prevent other apps from refreshing their jump lists (it's assumed that the user WANTS to do this, seeing as this is a JL editor.) One idea is to look for file or registry changes, where the data may be stored, and prevent the data from being written to. The question is, where is the jump list data stored? It has to be somewhere! I know there's a folder location for pinned items, but I forgot what it is. It'd be great if I can get the "task" data, as well. Here's the original report.

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• Queue access to the database to avoid multiple cache items

  - by MikeJ

  I have a music related ASP.NET web site which caches a lot of static information from the database on the first request. Sometimes, the application is reset and cache is cleared while the application is on heavy load and then all http requests go to the database to retrieve that static data and cache it for other requests. How can I ensure that only one request go to the database and cache the results, so that other request simply read that info from cache and not needlessly retrieve the same info over and over again. Can I use thread locking? For example, can I do something like lock(this) { db access here }?

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• IIS6 access parent folder of the of the app home folder

  - by André Alçada Padez

  Well. i'm really sorry for the fact that this question is easily testable, but i need to plan this for tomorrow and i don't have the means to test it now. I'm willing to lose the reputation if you are willing to help me out. Scenario: i got -iis wwwroot    - domainfolder (DynamicWeb Instalation)         - destinationfolder    - subdomain folder           default.aspx I need to know if i can make a fileupload in my Default.aspx, and do something like: fileUpload.SaveAs(Server.MapPath("../domainfolder/destinationfolder/") + filename) keep in mind that I will have full access to the windows server where the sites are hosted.

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• Return dataset in dataflow

  - by praveen

  Hi All, Could I get ideas on retrieving the dataset using lookup method. Basically, my scenario as I have source data needs to lookup for other source table and on matching column from source I need to get all the records from other source data. its a one to many relations. I tried Lookup but gives only one record on matching condition, OLE DB command don't retrieve any data as it will do only Insert/Update operations. Thanks prav

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• Access a facebook users photos and videos for the iPhone

  - by user255983

  Hey all, I was hoping someone can answer this question for me. I am trying to display wall posts, photos and videos for a certain user for example http://www.facebook.com/sony. I can see the wall posts, photos and videos without signing up for Facebook. Do I need to use the facebook connect API to access the photos and and videos for sony so that I can display them in my iPhone application? I need to display the wall posts as a table view and the images and videos as a gallery very much like how the facebook app displays it. Any help or a API specific page would be appreciated. Thanks, Firdosh

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• C# how to update file(leave old data)

  - by lolalola

  Hi, Now I'm writing to a file: TextWriter tw = new StreamWriter(@"D:/duom.txt"); tw.WriteLine("Text1"); When i writen second time all data delete and write new. How update data? Leave old data and add new

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• Access to a single pixel in C#

  - by Malki

  Hello, I'm working on a school project right now. It's meant to be a 3D editing software, (like a very minimized version of Maya). I have to write it in C#, using the 'Windows Application Project'. I intend to implement all the 3D stuff myself, from projections to shading. My question is, how can I get direct access to a single pixel in the C# windows application? I know I'm going to have a main view port in the window. But I haven't decided yet how it will be made. Is there a built in object that I can use, that will let me define the boundaries of the view port, and then paint each pixel individually? (I'm just shooting in the dark here, I don't know much about C#. I mostly program in C) Thanks, Malki.

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• Challege: merging csv files intelligently!

  - by Evenz495

  We are in the middle of changing web store platform and we need to import products' data from different sources. We currently have several different csv files from different it systems/databases because each system is missing some information. Fortunatly the product ids are the same so it's possible to relate the data using ids. We need to merge this data into one big csv file so we can import in into our new e-commerce site. My question: is there a general approach when you need to merge csv files with related data into one csv file? Are there any applications or tools that helps you out?

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• Load different views depending on the category of data on tap of tableview cell iPhone sdk

  - by neha

  Hi all, In my aplication, I want a tableview with different cell structure depending upon the category of data that's getting loaded in it [I have different categories like video, editorial etc with different structure of data like video has a single label, editorial has 3 labels etc]. I can load different nib files based on the data coming from xml parser. Now when the cell is tapped, I want to show its detailed view on a new viewController. So my question is is it possible to use only 1 viewController show different fields depending upon the category of data in the cell. Or do I need to create different viewControllers for each of the categories?

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• System.Data.DataException thrown when launching application after install

  - by jwarzech

  I currently have a (Visual Studio 2008) installer that has a 'Primary output...' custom action under 'Install' with 'InstallerClass' set to false. During the install I get a System.Data.DataException. When I run the debugger I am getting an exception being thrown from a bit of database access code that runs when the application starts. The database access is using Windows Authentication and works correctly when the application is started manually. Is this something to do with permission settings not allowing db access when launched from the installer? (I'm out of ideas)

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• do.call(rbind, list) for uneven number of column

  - by h.l.m

  I have a list, with each element being a character vector, of differing lengths I would like to bind the data as rows, so that the column names 'line up' and if there is extra data then create column and if there is missing data then create NAs Below is a mock example of the data I am working with x <- list() x[[1]] <- letters[seq(2,20,by=2)] names(x[[1]]) <- LETTERS[c(1:length(x[[1]]))] x[[2]] <- letters[seq(3,20, by=3)] names(x[[2]]) <- LETTERS[seq(3,20, by=3)] x[[3]] <- letters[seq(4,20, by=4)] names(x[[3]]) <- LETTERS[seq(4,20, by=4)] The below line would normally be what I would do if I was sure that the format for each element was the same... do.call(rbind,x) I was hoping that someone had come up with a nice little solution that matches up the column names and fills in blanks with NAs whilst adding new columns if in the binding process new columns are found...

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• Facebook access token: server-side vs client-side flows

  - by alexey

  Facebook docs: Facebook Platform supports two different OAuth 2.0 flows for user login: server-side (known as the authentication code flow in the specification) and client-side (known as the implicit flow). The server-side flow is used whenever you need to call the Graph API from your web server. The client-side flow is used when you need to make calls to the Graph API from a client, such as JavaScript running in a Web browser or from a native mobile or desktop app. What is the difference between access tokens taken by these flows? It seems like they length differ. Can we use server-side flow token on a client? And otherwise, can we use client-side flow token on a server?

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• Extracting Data Daily from MySQL to a Local MySQL DB

  - by Sunny Juneja

  I'm doing some experiments locally that require some data from a production MySQL DB that I only have read access to. The schemas are nearly identical with the exception of the omission of one column. My goal is to write a script that I can run everyday that extracts the previous day's data and imports it into my local table. The part that I'm most confused about is how to download the data. I've seen names like mysqldump be tossed around but that seems a way to replicate the entire database. I would love to avoid using php seeing as I have no experience with it. I've been creating CSVs but I'm worried about having the data integrity (what if there is a comma in a field or a \n) as well as the size of the CSV (there are several hundred thousand rows per day).

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• Write data into .txt file created by CFileDialog, in C++

  - by younevertell

  I wanna Write data into .txt file created by CFileDialog, in C++. The problem I am facing is that below codes doesn't work, although there is no build error. The .txt file created by CFileDialog can not be found for some reason. What's wrong the code? what's the efficient way to Write data into .txt file created by CFileDialog, in C++? Thanks CFileDialog dlg(FALSE, NULL, NULL, OFN_OVERWRITEPROMPT, _T("My Data File (*.txt)|*.txt||")); if(dlg.DoModal() != IDOK) return; CString filename = dlg.GetPathName(); ofstream outfile (filename); int mydata = 10; outfile << "my data:" << mydata << endl; outfile.close();

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• Spring Security LDAP user data caching on local database

  - by Eduardo

  After asking: http://stackoverflow.com/questions/3009740/ldap-user-data-caching-on-local-database I want to cache LDAP user data in the application local database to allow fast queries. How may I cache LDAP user data in the local database using Spring Security.

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• Reading in data from a file into an array

  - by Sam

  If I have an options file along the lines of this: size = 4 data = 1100010100110010 And I have a 2d size * size array that I want to populate the values in data into, what's the best way of doing it? To clarify, for the example I have I'd want an array like this: int[4][4] array = {{1,1,0,0}, {0,1,0,1}, {0,0,1,1}, {0,0,1,0}}. (Not real code but you get the idea). Size can be really be any number though. I'm thinking I'd have to read in the size, maloc an array and then maybe read in a string full of data then loop through each char in the data, cast it to an int and stick it in the appropriate index? But I really have no idea how to go about it, have been searching for a while with no luck. Any help would be cool! :)

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• How to access a XML file in a maven project so it stays available when packaged

  - by Manuel

  I currently started working on a maven web-app project that needs to be launched with the jetty:run-exploded goal for development/debugging in eclipse. Now, I have an XML file which contents I need to access at runtime. My problem is: where to put the file so that the code that does the reading works both in "exploded" and packaged (i.e. in the WAR) mode? Putting the file in src/main/java (so as to be in the classpath) won't cut it since maven filters out all non-java files on packaging. When the file is in src/main/resources, one mean would be to figure out the root path of the project (during eclipse development) and look into that directory - but this won't be the case anymore when the project will be packaged. Of course I could go into writing code that tries to read the file from both locations, but this seems rather cumbersome. Any suggestions?

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• Using Remote Web Server to Initialize iPhone App

  - by Chris_K

  My iPhone app relies on a vendor's XML feed to provide data. But that feed is not locked down. The vendor could change the format of the XML at any time, although so far they've promised not to. Since I might want to tell my app to use a different URL for its data source, I'd like to set up a single "Command Central" Web page, on my own server, to direct the app to the correct data source. In other words, each time my app starts, in the background and unseen by the user, it would visit "http://www.myserver.com/iphoneapp_data_sources.xml" to retrieve the URL for retrieving data from my vendor. That way, if my vendor suddenly changes the exact URL or the XML feed that the app needs, I can update that Web page and ensure that all installations of the app are using the correct XML feed. Does anyone have any advice or examples showing this kind of approach? It seems as if this must be a common problem, but so far I haven't found a well-established design pattern that fits it.

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• MPI Large Data all to all transfer

  - by csslayer

  My application of MPI has some process that generate some large data. Say we have N+1 process (one for master control, others are workers), each of worker processes generate large data, which is now simply write to normal file, named file1, file2, ..., fileN. The size of each file may be quite different. Now I need to send all fileM to rank M process to do the next job, So it's just like all to all data transfer. My problem is how should I use MPI API to send these files efficiently? I used to use windows share folder to transfer these before, but I think it's not a good idea. I have think about MPI_file and MPI_All_to_all, but these functions seems not to be so suitable for my case. Simple MPI_Send and MPI_Recv seems hard to be used because every process need to transfer large data, and I don't want to use distributed file system for now.

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• Get access to a lot of iPhone and iPad Quality Source Codes for only $89

  - by Pixmator

  Hi developers and coming developers! We are happy to release this new concept from Pixmator.com, where you can get access to a lot of iPhone and iPad source codes for only $89. Start making a pro-developed application by these great application examples with is followed with a Source Code, so you can get everything out of it! These applications is present with a fully professionally designed graphic. The engine and the code is as well, as the graphic! It looks awesome. It is awesome. Take a look, it doesn't hurt anyone. Hope you guys like it! It will be available for purchase soon! Check out the link below: Check it out here!

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• Rails Load Data into Application every time a New User is Created

  - by looloobs

  Hi I am trying to figure out the "right" way to do this. In my application every time I create a new user I want to have specific data loaded into an associated table. The associated table is a different preset lists. So a User has many lists and those lists have many items. Some of those Items I want to be loaded when the User is created. I really don't know how to go about doing this but I am guessing something like: create User after_create: create Lists (need already existing data for the list names) after_create List then populate Items table with existing data for these Lists. Should I be using seed data for this? Is that alright for production and if so how exactly would I go about doing that. Any guidance or other recommendations are greatly appreciated.

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• Usercontrol access javascript from a Content's Page's Master Page

  - by Coda

  Hello all I have a problem. I have a masterpage that all of my Content pages inherit from. Within this masterpage I have a script tag pointing to the javascript file folder "~/Scripts/validation.js" On my content pages I use different usercontrols that require the use of many of the functions within the validation.js file however if I dont put the tag and the javascript functions within a contentholder on the contentpage the usercontrols do not see these functions and I get errors like "OnNameValidation" is not defined. Of course I can copy the javscript code into all of the pages but that's 30+ pages and a maintenance nightmare if I find a bug in one of the javscript functions. So the question (if you haven't already figured out from my long dissertation) is how can I declare the script tag with the path to the validation.js file so that contentpages and their usercontrols etc. can access the functions/code. Thanks in advance.

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• backing up user data

  - by shani

  in my app the user saves data in archive using core data and sqllite. 1. is there a way letting him the option to back up his data and restoring it in the future? 2. does the user info is backed up with the iphone regular back up? thanks shani

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