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  • Enable export to XML via HTTP on a large number of models with child relations

    - by Vasil
    I've a large number of models (120+) and I would like to let users of my application export all of the data from them in XML format. I looked at django-piston, but I would like to do this with minimum code. Basically I'd like to have something like this: GET /export/applabel/ModelName/ Would stream all instances of ModelName in applabel together with it's tree of related objects . I'd like to do this without writing code for each model. What would be the best way to do this?

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  • Indexing datetime in MySQL

    - by User1
    What is the best way to index a datetime in MySQL? Which method is faster: Store the datetime as a double (via unix timestamp) Store the datetime as a datetime The application generating the timestamp data can output either format. Unfortunately, datetime will be a key for this particular data structure so speed will matter. Also, is it possible to make an index on an expression? For example, index on UNIX_TIMESTAMP(mydate) where mydate is a field in a table and UNIX_TIMESTAMP is a mysql function. I know that Postgres can do it. I'm thinking there must be a way in mysql as well.

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  • Why Can't I store XML in ASP.NET ListBox Value?

    - by mcass20
    Hello, Why does this work: ListItem item = new ListItem(); string value = lstAvailExtPropsToFilter.SelectedItem.Text +" = "+ txtExtPropToFilter.Text; string text = lstAvailExtPropsToFilter.SelectedItem.Text + " = " + txtExtPropToFilter.Text; item.Text = text; item.Value = value; lstExtPropsToFilter.Items.Add(item); But not this: ListItem item = new ListItem(); string value = string.Format("<key>{0}</key><value>{1}</value>", lstAvailExtPropsToFilter.SelectedItem.Text, txtExtPropToFilter.Text); string text = lstAvailExtPropsToFilter.SelectedItem.Text + " = " + txtExtPropToFilter.Text; item.Text = text; item.Value = value; lstExtPropsToFilter.Items.Add(item);

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  • relace double quotes to parse JSON in PHP

    - by hunt
    hi, i have following json format { "status": "ACTIVE", "result": false, "isworking": false, "margin": 1, "employee": { "111": { "val1": 5.7000000000000002, "val2": "9/2", "val3": 5.7000000000000002 }, "222": { "val1": 31.550000000000001, "val2": "29/1", "val3": 31.550000000000001 } } } how the problem is when i am trying to decode above json response in php using json_decode($res,true) { true param for associative array } i am getting following result as few fields like "result":false is not "result":"false" i.e. at many of the places doubles quotes are missing in values of json. see in val1 and val3 fields resultant data after decoding in php (associative array) Array ( [status] = ACTIVE [result] = [isworking] = [margin] = 1 [employee] = Array ( [111] = Array ( [val1] = 5.7 [val2] = 9/2 [val3] = 5.7 ) [222] = Array ( [val1] = 31.55 [val2] = 29/1 [val3] = 31.55 ) ) ) please help me on how would i insert double quotes in values ? Thanks

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  • Rails: translate ActiveRecord error template headers for a single model

    - by Chris
    Hi, I'm trying to rename the authlogic error messages in a Rails 3 app. The general format I found out working in Rails 3: de: errors: template: header: one: "Konnte {{model}} nicht speichern: ein Fehler." other: "Konnte {{model}} nicht speichern: {{count}} Fehler." body: "Bitte überprüfen Sie die folgenden Felder: But I want to change this for the authlogic user session model (and only for this one) because when the Login fails, the message "Could not save user session" does not make very much sense. How can I do that?

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  • How can I possibly sort this in JavaScript?

    - by orokusaki
    I've been pounding my head on the wall trying to figure out how to sort this in JavaScript (I have to work with it in this format unfortunately). I need to sort it based on Small, Medium, Large, XL, XXL (Small ranking the highest) in each variationValues size field. The problem is that I need to sort the variationCosts and variationInventories at the same time to match the new order (since each value in order corresponds to the values in the other fields :( Input I have to work with var m = { variationNames: ["Length", "Size" ], variationValues: [ ["26.5\"", "XXL"], ["25\"", "Large"], ["25\"", "Medium"], ["25\"", "Small"], ["25\"", "XL"], ["25\"", "XXL"], ["26.5\"", "Large"], ["26.5\"", "Small"], ["26.5\"", "XL"] ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 60, 51, 10, 15, 10, 60, 10, 15 ], parentCost: 20.00 }; Desired output var m = { variationNames: ["Length", "Size" ], variationValues: [ ["25\"", "Small"], ["26.5\"", "Small"], ["25\"", "Medium"], ["25\"", "Large"], ["26.5\"", "Large"], ["25\"", "XL"], ["26.5\"", "XL"] ["25\"", "XXL"], ["26.5\"", "XXL"], ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 10, 51, 60, 15, 15, 15, 10, 10 ], parentCost: 20.00 };

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  • MySQL Query, limit output display according/only to associated ID!

    - by Jess
    So here's my situation. I have a books table and authors table. An author can have many books... In my authors page view, the user (logged in) can click an author in a tabled row and be directed to a page displaying the author's books (collected like this URI format: viewauthorbooks.php?author_id=23), very straight forward... However, in my query, I need to display the books for the author only, and not all books stored in the books table (as i currently have!) As I am a complete novice, I used the most simple query of: SELECT * FROM tasks_tb :)....this returns the books for me, but returns every single value (book) in the database, and not ones associated with the selected author. And when I click a different author the same books are displayed for them...I think everyone gets what I'm trying to achieve, I just don't know how to perform the query. I'm guessing that I need to start using more advanced query clauses like INNER JOIN etc. Anyone care to help me out :)

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  • Getting fields of a class through reflection

    - by Water Cooler v2
    I've done it a gazillion times in the past and successfully so. This time, I'm suffering from lapses of amnesia. So, I am just trying to get the fields on an object. It is an embarrassingly simple and stupid piece of code that I am writing in a test solution before I do something really useful in production code. Strangely, the GetFieldsOf method reports a zero length array on the "Amazing" class. Help. class Amazing { private NameValueCollection _nvc; protected NameValueCollection _myDict; } private static FieldInfo[] GetFieldsOf(string className, string nameSpace = "SomeReflection") { Type t; return (t = Assembly.GetExecutingAssembly().GetType( string.Format("{0}.{1}", nameSpace, className) )) == null ? null : t.GetFields(); }

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  • Regular expressions in a Python find-and-replace script?

    - by Haidon
    I'm new to Python scripting, so please forgive me in advance if the answer to this question seems inherently obvious. I'm trying to put together a large-scale find-and-replace script using Python. I'm using code similar to the following: findreplace = [ ('term1', 'term2'), ] inF = open(infile,'rb') s=unicode(inF.read(),charenc) inF.close() for couple in findreplace: outtext=s.replace(couple[0],couple[1]) s=outtext outF = open(outFile,'wb') outF.write(outtext.encode('utf-8')) outF.close() How would I go about having the script do a find and replace for regular expressions? Specifically, I want it to find some information (metadata) specified at the top of a text file. Eg: Title: This is the title Author: This is the author Date: This is the date and convert it into LaTeX format. Eg: \title{This is the title} \author{This is the author} \date{This is the date} Maybe I'm tackling this the wrong way. If there's a better way than regular expressions please let me know! Thanks!

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  • how do you load files in windows phone 7?

    - by matt
    do you seriously have to make your own content pipeline project for every single type of file you want to load? Microsoft just seem to be pretending that the iphone doesn't exist (even though they are now paying devs to port between them). I'm trying to port my game from the iphone to winmo7, and I already have a nice asset pipeline set up for exporting textures in the exact format we want (16 bit fmts ect) I just want to be able to open a file and read it, just like I would on any other platform. I have tried System.IO.File.OpenText("atextfile.txt"), but it says that function is "RESTRICTED!!!!" I have tried just adding the txt file to the content project, setting its properties to "content" and "copy always" and then trying to open it doing this.Content.Load("atextfile.txt"); with and without the extension, says it can't find the file.

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  • MS WebBrowser + Embedded HTML Resource + res:// Protocol

    - by letthewookiewin
    Hi, I have an embedded HTML resource (helloworld.htm) inside my Visual Studio project. (Ie, I've added an HTML file to the project and set its properties to "Embedded Resource". Within the same application I have a WebBrowser control. I'd like to direct the WebBrowser control to display the HTML resource using the res:// protocol. But I can't figure out the exact format needed to address an embedded resource using this style of URL. Any ideas? Thanks!

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  • Can I create a transaction using ADO NET Entity Data Model?

    - by Junior Mayhé
    Hi is it possible on the following try-catch to execute a set of statements as a transaction using ADO NET Entity Data Model? [ValidateInput(false)] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Customer c) { try { c.Created = DateTime.Now; c.Active = true; c.FullName = Request.Form["FirstName"]; db.AddToCustomer(c); db.SaveChanges(); Log log = new Log();//another entity model object log.Created = DateTime.Now; log.Message = string.Format(@"A new customer was created with customerID {0}", c.CustomerID); db.AddToLog(log); db.SaveChanges(); return RedirectToAction("CreateSuccess", "Customer"); } catch { return View(); } } Any thoughts would be very appreciated.

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  • Reading data from xml file

    - by Joy
    I have a currency converter application for iphone which uses web service. The web service is returning result in the following format:- <Date>4/5/2010</Date> <Time>7:18:09 AM</Time> <Amount>20</Amount> <ExchangeRate>44.7336419443466</ExchangeRate> <Result>894.672839</Result> I'm storing the whole xml file in an NSString variable called theXML. I want to show the value inside the result tag.How can i read the data from the xml file or from the string.. Thanks in advance..

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  • How does compiler use lib file ?

    - by Xinus
    I am curious about how c/c++ compiler analyse lib files ? I mean say I create a library containing some classes, I am using that library in my main program. How does compiler know what class names are there in that library. Of course that information is present in binary format, I want to use that functionality in my program, to be specific I have a binary lib file and I want to know all classes and properties/functions present in that lib file. Is it possible ? If compiler can do that why can't some library ? thanks for any clue

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  • how to get the image position from pdf file in objective c?

    - by Sarah
    Hello, I am doing something like extracting the pdf text in a string format so as to annotate the text and in the same process i need to find the image positions covered in the same pdf file so as to maintain its position. Now the problem is that i am not getting the exact positions of the images in the same pdf file. Is it possible to use some thing like OCR,if yes,how to use that? Can anybody help me in finding the exact position of the image in the pdf file? I need to implement some pdf reader kind of application for ipad,that's just for the knowledge. Thank you.

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  • how to parse google search results on iphone

    - by Shibin Moideen
    Hi satckoverflow, I am trying to implement a search tool on my iPhone, when i enter a text it will be send to the google for searching. and return the result. I need to know how the text is given to the Google search engine and how the google is returning the result? Is it in the XML format or JSON. I can then parse the result XML/JSON on my iPhone and want to display the results in my table view. Any idea? need Help...! Thanks in advance, Shibin

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  • CRC32 calculations for png chunk doesn't match the real one

    - by user2507197
    I'm attempting to mimic the function used for creating CRC's in PNG files, I'm using the autodin II polynomial and the source code from: http://www.opensource.apple.com/source/xnu/xnu-1456.1.26/bsd/libkern/crc32.c My tests have all been for the IHDR chunk, so my parameters have been: crc - 0xffffffff and 0 (both have been suggested) buff - the address of the IHDR Chunk's type. length - the IHDR Chunk's length + 4 (the length of the chunk's data + the length of the type) I printed the calculated CRC in binary, which I compared to the actual CRC of the chunk. I can see no similarities (little-big endian, reversed bits, XOR'd, etc). This is the data for the IHDR chunk (hexadecimal format): length(big endian): d0 00 00 00 (13) type: 49 48 44 52 data: 00 00 01 77 00 00 01 68 08 06 00 00 00 existing CRC: b0 bb 40 ac If anyone can tell me why my calculations are off, or give me a CRC32 function that will work I would greatly appreciate it. Thank-you!

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  • Loop through custom template hooking thing

    - by tarnfeld
    Hi, I am building a template system for emailing people that currently works in the format of: $array['key1'] = "text; $array['key2'] = "more text"; <!--key1--> // replaced with *text* <!--key2--> // replaced with *more text* For this particular project I have a nested array with this kind of structure: $array['object1']['nest1']['key1'] = "text"; $array['object2']['next1']['key1'] = "more text"; <!--[object1][nest1][key1]--> // replaced with *text* <!--[object2][nest1][key1]--> // replaced with *more text* What would be the best way to do this in PHP? I thought I could loop through the arrays but then I just lost my trail of thought and got lost in what I was doing! All help would be appreciated!! Thanks

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  • sqlite3 date operations when joining two tables in a view?

    - by duncan
    In short, how to add minutes to a datetime from an integer located in another table, in one select statement, by joining them? I have a table P(int id, ..., int minutes) and a table S(int id, int p_id, datetime start) I want to generate a view that gives me PS(S.id, P.id, S.start + P.minutes) by joining S.p_id=P.id The problem is, if I was generating the query from the application, I can do stuff like: select datetime('2010-04-21 14:00', '+20 minutes'); 2010-04-21 14:20:00 By creating the string '+20 minutes' in the application and then passing it to sqlite. However I can't find a way to create this string in the select itself: select p.*,datetime(s.start_at, formatstring('+%s minutes', p.minutes)) from p,s where s.p_id=p.id; Because sqlite as far the documentation tells, does not provide any string format function, nor can I see any alternative way of expressing the date modifiers.

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  • How can I assign pointer member with long string?

    - by Nano HE
    Hi, When I did the practice below to erase my pointer member and assign new value to it. (*pMyPointer).member.erase(); (*pMyPointer).member.assign("Hello"); // Successfully Than I tried more... (*pMyPointer).member.erase(); (*pMyPointer).member.assign("Long Multi Lines Format String"); // How to? If the long multi lines string can't quote by double quoter, how to handle it. Thank you.

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  • Can a user be a member of multiple Organization Units (OU) in Active Directory ?

    - by Stormshadow
    Can a user be a member of multiple Organization Units (OU) in Active Directory ? Also, is there a standard format mentioned by Microsoft on how an OU should be created and what its attributes are ? I found this in Wikipedia "However, Organizational Units are just an abstraction for the administrator, and do not function as true containers; the underlying domain operates as if objects were all created in a simple flat-file structure, without any OUs. It is not possible for example to create two user accounts with an identical username in two separate OUs, such as "fred.staff-ou.domain" and "fred.student-ou.domain"."

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  • Chrome/Webkit audio tag bug?

    - by Ronald
    I'm trying to get HTML5's audio tag to work in Chrome. The following code works flawlessly in Firefox, any ideas why it isn't working in Webkit? <html> <head> <script type="text/javascript"> function init(){ audio = new Audio("chat.ogg"); audio.play(); } </script> </head> <body onload="init()"> </body> I should also note that I tried this with an mp3 as well. Regardless of what format, whenever .play() is called on audio, Chrome responds with "undefined".

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  • How do I enumerate installed OleDb providers for current processor architecture?

    - by Rowland Shaw
    I've a project that connects to a dBase format database file, that I've always done in the past with a connection string of the form of: PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=MyData.dbf;Extended Properties=dBASE 5.0 I've had to revisit this recently, and have found that when attempting to create an OleDbConnection with that connection string on x64 machines, that have an x86 install of Office on it, it throws an exception. A quick hack of a fix shows that forcing the application to target x86 only makes it work, but I was hoping to be able to tidy this up and check in advance whether it would fail to create the connection, so that I could customise my import options to suit the available providers. Is it possible to enumerate the available data providers for the current processor architecture? (other than relying on catching the exception -- after all, the Framework Design Guidelines suggest that you should only throw in exceptional circumstances, and you have a method to check if something would throw an exception)

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  • Real-Time Data Streaming to Multiple Clients

    - by AriX
    Hi all, I would like to write an application which will stream data at 2400 baud over the internet from a server to multiple clients. The data will be the same for each client, and it would probably be fine to send it as a UDP stream, since exact data accuracy is not a 100% necessity, as there are checksums built-in to the data format and the data will be sent repeatedly on a loop. What is the best way to do this? I would want to write the server in C, but I don't know how to best multicast this data to the different clients that would be receiving it all over the country. I'm sure this seems like a pretty draconian way to go about my project, as opposed to just using some sort of fetch command, but I'd prefer to do it this way if possible.

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  • Java data structure to use with Hibernate to store unknown number of parameters?

    - by Lunikon
    Following problem: I want to render a news stream of short messages based on localized texts. In various places of these messages I have to insert parameters to "customize" them. I guess you know what I mean ;) My question probably falls into the "Which is the best style to do it?" category: How would you store these parameters (they may be Strings and Numbers that need to be formatted according to Locale) in the database? I'm using Hibernate to do the ORM and I can think of the following solutions: build a combined String and save it as such (ugly and hard to maintain I think) do some kind of fancy normalization and and make every parameter a single row on the database (clean I guess, but a performance nightmare) Put the params into an Array, Map or other Java data structure and save it in binary format (probably causes a lot of overhead size-wise) I tend towards option #3 but I'm afraid that it might be to costly in terms of size in the database. What do you think?

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