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  • Creating an admin user in Devise on Rails beta 3

    - by erskingardner
    Ok, I'm probably going to feel quite dumb when someone answers this one with a simple thing that I'm missing but... here goes: I've got a brand new app on rails 3 beta and I'm using devise for the authentication. I've run all the comments and everything is working perfectly at the moment. I've created a user role and an admin role (following these instructions: http://wiki.github.com/plataformatec/devise/adding-an-admin-role) and I've registered myself as the first user but how to do I register or create an admin role user? The directions from the devise guys setup the admin role to not be registerable but I'm unsure how you're supposed to create the admin if you can't register?! Any help would be appreciated! Thanks!

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  • NpgSQL insert file path containing backslashes "\\"

    - by Chau
    I am trying to create a record containing the path to a file. The insertion is done into a Postgres database where UTF8 is enabled, using the NpqSQL driver. My table definition: CREATE TABLE images ( id serial, file_location character varying NOT NULL ) My SQL statement (boiled down to a minimum): INSERT INTO images (file_location) VALUES (E'\\2010') When using pgAdmin to insert the above statement, it works fine. Using the NpgSQL driver through Visual Studio C#, it fails with this exception: "ERROR: 22021: invalid byte sequence for encoding \"UTF8\": 0x81" Replacing my SQL statement with the following: INSERT INTO images (file_location) VALUES (E'\\a2010') ^ The E is encouraged by pgAdmin when using double backslashes. So a quick recap: Why is NpqSQL stopping my insertion of the \\2010?

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  • Foreign key onto weak entity set in MS SQL Server 2008?

    - by Nic Waller
    I'm using Microsoft SQL Server 2008 Management Studio to create a relational schema by following an Entity-Relationship diagram. (included below; unrelated details removed) Until now, primary and foreign keys have been working as expected. But when I try to create a foreign key from the entity relationship takes onto the weak entity set section, I get an error. Section is identified by a composite primary key in the context of course, which has course_id as a primary key. Therefore, the primary key of section is a 4-way composite key. The entity relationship takes needs to refer to section, so it includes all 4 primary attributes from section in it's own primary key. When trying to establish a foreign key relationship from takes to section, Studio gives the following error: The columns in table 'section' do not match an existing primary key or UNIQUE constraint. Am I doing something wrong, or is this an unsupported configuration? I can provide more details or the SQL schema if necessary.

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  • C# File Exception: cannot access the file because it is being used by another process

    - by Lirik
    I'm trying to download a file from the web and save it locally, but I get an exception: C# The process cannot access the file 'blah' because it is being used by another process. This is my code: File.Create("data.csv"); // create the file request = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url)); request.Timeout = 30000; response = (HttpWebResponse)request.GetResponse(); using (Stream file = File.OpenWrite("data.csv"), // <-- Exception here input = response.GetResponseStream()) { // Save the file using Jon Skeet's CopyStream method CopyStream(input, file); } I've seen numerous other questions with the same exception, but none of them seem to apply here. Any help?

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  • Setting the database connection when using a TransactionScope

    - by eych
    Does the database connection have to be set inside a TransactionScope? Or can I set it in the ctor and then have instance methods create up a TransactionScope? EDIT: e.g. Public Sub New() Dim conn = new SqlConnection(...connection string) Public Sub SomeClassMethod() using ts as new TransactionScope //conn has already been initialized //so, here you can set commands, ExecuteDataSet, etc. vs Public Sub New() //nothing here Public Sub SomeClassMethod() using ts as new TransactionScope conn = new SqlConnection(...connection string) set commands, ExecuteDataSet, etc. the question is do you need to create the connection to the database after you've created a TransactionScope or can it be done before?

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  • Activity tracking usecase for login tracking.

    - by Mdillion
    Creating an activity tracking system for a social site. All user activiti from pooint of login til logoff are to be tracked. This means the first use case is the user's login. Every activity will have the same format so once I figure out how to track one activity then I can create chema for all activities. Currently for login I have steps like: Two solutions I have: Activity 1: User attempts to login Activity 2 A: User has successfully logged in Activity 2 B: User failed to login. Activity 2 B A: User failed to login due to invalid password Activity 2 B B: User failed to login due to locked account. OR Activty 1: User login - with result = Pass or Fail and if Fail reason = flag_id of reason. Accordingly I have to create the schema. For now I have it like this: activity_id object_id (fk) session_id (fk) user_id (fk) flag_id (fk) created_dt friend_id (fk) result (pass/fail) But ofcourse this a work in progress.

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  • Alpha transparent PNGs not displaying correctly in Mobile Safari

    - by worksology
    I'm using some semi-transparent PNGs as background-images on various websites. These are usually something like a 1x1 image with a 30-percent opaque white layer. I've noticed that Mobile Safari does not display them correctly, giving them a darker/grayish tint. I've created a couple test pages to illustrate. View them both in your normal browser, and then on Mobile Safari, and you should see what I mean. This shows 11 red images of varying opacities on white: http://thecompleteworks.org/alpha-tests/index-red.html This shows 11 white images of varying opacities on blue: http://thecompleteworks.org/alpha-tests/index.html Is this a MobileSafari bug (I couldn't imagine so), or do I need to do something different, either to my pages or PNGs? (Here's how I create the PNGs: In Photoshop, create a 1x1 transparent canvas. Draw a white rectangle in Layer 1. Set opacity to, say 30 percent, Save for Web as 24-bit PNG with transparency.)

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  • how to add "Existing solution folder recursively" to my VS2005 solution

    - by user36753
    I tried drag and drop from the explorer, but no luck with following error: "Folders cannot be dropped or pasted as solution items. Choose an individual document instead." I know we can create each folders/subfolders manually and add each file, but any quick way to do this on visual studio 2005? Updated: Thank you for the reply, but I do not want the folders to be added under any project, It should appear as a separate node inside my solution, like any other project. In this case the show all files does not work, since the solution itself does not have any folder, it is only if we select any project it works. I know we can create each folders/subfolders manually and add each file, but any quick way, because there are few hundreds of files.

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  • Creating <li> with JavaScript in an XUL Application

    - by echox
    Hi! I try to create some li elements in my XUL Application. Theres only the text of the elements shown, but no list typical bullets and linebreaks. Example: text text text text text text text Heres the JS Code I use to create the list: var li = document.createElement('html:li'); var txt = document.createTextNode("only shown as simple text"); li.appendChild(txt); document.getElementById('someList').appendChild(li); HTML: <html:ul id="someList"> <html:li>this is shown in correct list style</html:li> </html:ul> I tried 'html:li' and also 'li' but nothing worked. Any suggestions?

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  • Ruby Programming Techniques: simple yet not so simple object manipulation

    - by Shyam
    Hi, I want to create an object, let's say a Pie. class Pie def initialize(name, flavor) @name = name @flavor = flavor end end But a Pie can be divided in 8 pieces, a half or just a whole Pie. For the sake of argument, I would like to know how I could give each Pie object a price per 1/8, 1/4 or per whole. I could do this by doing: class Pie def initialize(name, flavor, price_all, price_half, price_piece) @name = name @flavor = flavor @price_all = price_all @price_half = price_half @price_piece = price_piece end end But now, if I would create fifteen Pie objects, and I would take out randomly some pieces somewhere by using a method such as getPieceOfPie(pie_name) How would I be able to generate the value of all the available pies that are whole and the remaining pieces? Eventually using a method such as: myCurrentInventoryHas(pie_name) # output: 2 whole strawberry pies and 7 pieces. I know, I am a Ruby nuby. Thank you for your answers, comments and help!

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  • Share application in local network

    - by hedgehogrider
    I would like to eventually create a managerial program that shares and updates information for multiple computers that are on the same network. I am fairly familiar with Python, C++ and a bit of Java, is there a library I could use with any of these languages to design such a program? I could probably create the local interface from where I am right now, but when it comes to packing and sharing data I could not be more clueless; any advice would be platinum. The program will need to differentiate between administrative and user access if that makes a difference.

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  • What really happens when I use varchar(10) in the sqlite command-line shell?

    - by romandas
    I'm messing around with SQLite for the first time by working through some of the SQLite documentation. In particular, I'm using Command Line Shell For SQLite and the SoupToNuts SQLite Tutorial on Sourceforge. According to the SQLite datatype documentation, there are only 5 datatypes in SQLite. However, in the two tutorial documents above, I see where the authors use commands such as create table tbl1(one varchar(10), two smallint); or create table t1 (t1key INTEGER PRIMARY KEY,data TEXT,num double,timeEnter DATE); which contain datatypes that aren't listed by SQLite, yet these commands work just fine. Additionally, when I ran .dump to see the SQL statements, these datatype specifications are preserved. So, what gives? Does SQLite keep a reference for any datatype specified in the SQL yet converts it behind the scenes to one of its 5 datatypes? Or is there something else I'm missing?

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  • WCF Method is returning xml fragment but no xml UTF-8 header

    - by horls
    My method does not return the header, just the root element xml. internal Message CreateReturnMessage(string output, string contentType) { // create dictionaryReader for the Message byte[] resultBytes = Encoding.UTF8.GetBytes(output); XmlDictionaryReader xdr = XmlDictionaryReader.CreateTextReader(resultBytes, 0, resultBytes.Length, Encoding.UTF8, XmlDictionaryReaderQuotas.Max, null); if (WebOperationContext.Current != null) WebOperationContext.Current.OutgoingResponse.ContentType = contentType; // create Message return Message.CreateMessage(MessageVersion.None, "", xdr); } However, the output I get is: <Test> <Message>Hello World!</Message> </Test> I would like the output to render as: <?xml version="1.0" encoding="utf-8" standalone="yes"?> <Test> <Message>Hello World!</Message> </Test>

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  • looking for a clean way of how to bring down a ftp server for maintenance

    - by harald
    hello, i'm currently thinking of a clean way of how to bring an ftp server down for maintenance. i wonder, if anybody out there could give me some hints of how to solve this: i don't want to interrupt any current uploads, but want to block any new connects / uploads and wait, till uploads have finished, before taking down the ftp server is there a way of dynamically prevent user-logins and show a message eg.: "ftp currently down for maintenance" when a user tries to log in? are my thoughts on this very uncommon or how do others handle this -- i feel, that just halting ftp server and killing any current uploads is not the right way for this ... i use proftpd (with SQL backend) btw, maybe there are some specific solutions for this -- or are there any generic tools to achieve this? many thanks!

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  • How to execute several batch commands in sequence

    - by ptikobj
    I want to create a Windows XP batch script that sequentially performs something like the following: @echo off :: build everything cd \workspace\project1 mvn clean install cd ..\project2 mvn clean install :: run some java file cd \workspace\project3 java -jar somefile.jar When I create a Batch script like this (following these instructions), I still have the problem that the script stops doing something after the first mvn clean install and then displays the command line. How can i execute all of these commands in sequence in one batch file? I don't want to refer to other files, I want to do it in one file.

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  • Exposing .NET enums to COM clients{VBScript}

    - by Codex
    Am trying create of PoC for exposing/invoking various .NET objects from COM clients. The .NET library contains some classes and Enums. Am able to successfully access the classes in VBScript but not able to access the Enums. I know that Enums are value types and hence 'CreateObject' wont work in this case. But am able to access the same Enum in VBA code. Questions: How can I access the enums in VBScript? Why does the behaviour differ in the two COM clients? If VBA object browser can see the enum, why cant VBScript allow me to create one? .NET [ComVisible(true)] [GuidAttribute("ebc25cf6-9120-4283-b972-0e5520d0000E")] public enum Currency { GBP = CurrencyConvertorBL.CurrencyConvertorRef.Currency.GBP, USD = CurrencyConvertorBL.CurrencyConvertorRef.Currency.USD, INR = CurrencyConvertorBL.CurrencyConvertorRef.Currency.INR, AUD = CurrencyConvertorBL.CurrencyConvertorRef.Currency.AUD } VBA Private Function ConvertCurrency(fromCurrency As Currency, toCurrency As Currency) As Double VBScript ??? Set currencyConvertorCCY = CreateObject("CurrencyConvertorBL.Currency") Thanks in advance.

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  • How do you deal with UAC when creating a process as a different user?

    - by sysrpl
    I am having an issue with UAC and executing a non interactive process as a different user (APIs such as CreateProcessAsUser or CreateProcessWithLogonW). My program is intended to do the following: 1) Create a new windows user account (check, works correctly) 2) Create a non interactive child process as new user account (fails when UAC is enabled) My application includes a administrator manifest, and elevates correct when UAC is enabled in order to complete step 1. But step 2 is failing to execute correctly. I suspect this is because the child process which executes as another user is not inheriting the elevated rights of my main process (which executes as the interactive user). I would like to know how to resolve this issue. When UAC is off my program works correctly. How can I deal with UAC or required elevated rights in this situation? If it helps any, the child process needs to run as another user in order to setup file encryption for the new user account.

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  • C# WinForms & SQL bindings

    - by vent
    I have a MSSQL database with many tables and relations. I want to bind it to my C# GUI application with text- and combo-boxes. Which one is the best way to do it: (1) Everything done manually by own classes and methods: Import data to dataset or to many datatables separately, then create dictionaries to comboboxes, manually retrieve data to textboxes and create a sql statement if update action will be invoked, or, (2) Done automatically by VS: Connect my controls with BindingSource and BindingNavigator if needed. I know how to deal with the first one, but if the second way would be better, my question is — how to achieve it? I haven't dealt with automatically created databindings and I don't know how to tell to DataBinding property (Key|Value|Text) about relations and current row's ID. And what is the method to cancel/update changes in all GUI elements? I need a simple solution for this scenario. It's a quick-and-dirty academical project, which must only "work" and be as fast implemented as it can. Thanks

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  • Referencing code in VB.NET

    - by akramnik
    I'm not at all familiar with VB.NET or ASP. I need to create a simple page which makes a call to a remote web service. I used the wsdl utility which comes with the DotNet SDK to generate a service proxy and write it to a VB file. Unfortunately I have no idea how to reference this code in either my ASPX file or the code behind VB file so I can create an instance of the proxy. Edit: I should have qualified this by noting that I'm not using visual studio. I just coded up a .aspx with a .vb behind it and dropped it into an IIS location. Is there a way to do what you're suggesting outside of VS?

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  • compile AMR-nb codec with RVCT for WinCE/Window Mobile

    - by pps
    Hello everybody, I'm working on amr speech codec (porting/optimization) I have an arm (for WinCE) optimized version from voiceage and I use it as a reference in performance testing. So far, binary produced with my lib beats the other one by around 20-30%! I use Vs2008 and I have limited access to ARM instruction set I can generate with Microsoft compiler. So I tried to look for alternative compiler to see what would be performance difference. I have RVCT compiler, but it produces elf binaries/object files. However, I run my test on a wince mobile phone (TyTn 2) so I need to find a way to run code compiled with RVCT on WinCE. Some of the options are 1) to produce assembly listing (-S option of armcc), and try to assemble with some other assembler that can create COFF (MS assembler for arm) 2) compile and convert generated ELF object file to COFF object (seems like objcopy of gnu binutils could help me with that) 3) using fromelf utility supplied by RVCT create BIN file and somehow try to mangle the bits so I can execute them ;) My first attempt is to create a simple c++ file with one exported function, compile it with RVCT and then try to run that function on the smartphone. The emitted assembly cannot be assembled by the ms assembler (not only they are not compatible, but also ms assembler rejects some of the instructions generated with RVCT compiler; ASR opcode in my case) Then I tried to convert ELF object to coff format and I can't find any information on that. There is a gcc port for ce and objcopy from that toolset is supposed to be able to do the task. However, I can't get it working. I tried different switches, but I have no idea what exactly I need to specify as bfdname for input and output format. So, I couldn't get it working either. Dumping with fromelf and using generated bin file seems to be overkill, so I decided to ask you guys if there is anything I should try to do or maybe someone has already done similar task and could help me. Basically, all I want to do is to compile my code with RVCT compiler and see what's the performance difference. My code has zero dependencies on any c runtime functions. thanks!

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  • jQuery ajax callback function not working

    - by Harish Kurup
    I am using Symfony PHP Framework to create web application, and using symfony Forms to create the HTML forms. I am trying to load the data in Select element using Ajax, for that i am using jQuery's Ajax functions. It is working fine as it sends and gets the response correctly(status as 200), but not calling the Callback function in some browsers such as IE,Chrome and Safari.It works fine in Firefox and Opera. the Code that is not working, $.ajax({ type: 'POST', url: 'form/ajax', async: true, cache: false, dataType : 'json', data: 'id='+ids, success: function(jsonData){ alert("ok go"); } }); the alert "OK Go" is not called in Chrome,IE and Safari But $.ajax({ type: 'POST', url: 'form/ajax', async: true, cache: false, dataType : 'json', data: 'id='+ids, success: alert("ok go"); }); this works, but as per the project i want the JSON data to load in my Select element. is there any thing wrong in the return JSON format or the bug in the jQuery Ajax functions, please help.

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  • How can I write query to output this format in SQLite?

    - by GivenPie
    I would like to output in this format: e.EE_id e.FNAME e.LNAME SUPer_id s.FNAME s.LNAME --- --------- -------------- --- ------------- ------------------- 1 Ziqiao Li 2 Charlie Li 1 Ziqiao Li 3 George Pee 2 Charlie Li 4 Jason Dee 2 Charlie Li 5 Petey Wee 2 Charlie Li From this table created : I need to display the Primary key and foreign key in the same results while displaying the foreign key name values for the primary key names. Create table Employees( ee_id integer, fname varchar(20), lname varchar(20), super_id integer, Constraint emp_Pk Primary Key (ee_id), Constraint emp_Fk Foreign Key (super_id) references employees (ee_id) ); INSERT INTO Employees VALUES(1,'Charlie','Li',null); INSERT INTO Employees VALUES(2,'Ziqiao','Lee',1); INSERT INTO Employees VALUES(3,'George','Pee',2); INSERT INTO Employees VALUES(4,'Jason','Dee',2); INSERT INTO Employees VALUES(5,'Petey','Wee',2); Select ee_id, fname, lname, super_id from employees; ee_id fname lname super_id ---------- ---------- ---------- ---------- 1 Charlie Li 2 Ziqiao Lee 1 3 George Pee 2 4 Jason Dee 2 5 Petey Wee 2 Do I need to create a view?

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  • Sync Framework,LINQ, and my DAL

    - by Refracted Paladin
    I am creating a WPF app that needs to allow users to work in a temporary disconnected state and I plan to use a Local Database Cache. My question's are about my data access layer. Do you typically create the whole DAL to point at the Cache or both and create a switching mechanism? Is Entity's a good way to go for my DAL against the Cache? I am used to L2S but my understanding is that I can't use that against SQLCE, correct? Thanks! PS: Any good resources out there for using Sync, Linq, and WPF ALL TOGETHER? Tutorials, videos, etc?

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