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  • ADO.NET Entity Framework: Can I have multiple entity types for the same row.

    - by black_nm
    Hi all, I have a base class Participants inherited by Artist, Author and TextWriter. I have only one table in the data store: Participants { ID, FirstName, LastName, IsArtist, IsAuthor, IsTextWriter, } The idea is to have a class for all the roles that a participant can have. I've managed to create the edmx file but when I try to get an Participant (as Artist) that is also an Author I receive the following error: All objects in the EntitySet 'Participants' must have unique primary keys. However, an instance of type 'Artist' and an instance of type 'Author' both have the same primary key value, 'EntitySet=Participants;ID=1'. Thank you

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  • In OpenRasta is it possible to Pattern match multiple key/value pairs?

    - by Scott Littlewood
    Is it possible in OpenRasta to have a Uri pattern that allows for an array of values of the same key to be submitted and mapped to a handler method accepting an array of the query parameters. Example: Return all the contacts named Dave Smith from a collection. HTTP GET /contacts?filterBy=first&filterValue=Dave&filterBy=last&filterValue=Smith With a configuration of: What syntax would be best for the Uri string pattern matching? (Suggestions welcome) ResourceSpace.Has.ResourcesOfType<List<ContactResource>>() .AtUri("/contacts") .And.AtUri("/contacts?filterBy[]={filterBy}[]&filterValue[]={fv}[]") // Option 1 .And.AtUri("/contacts?filterBy={filterBy}[]&fv={fv}[]") // Option 2 Would map to a Handler method of: public object Get(params Filter[] filters) { /* create a Linq Expression based on the filters using dynamic linq query the repository using the Linq */ return Query.All<Contact>().Where(c => c.First == "Dave" && c.Last == "Smith").ToResource() } where Filter is defined by public class Filter { public string FilterBy { get; set; } public string FilterValue { get; set; } }

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  • Is there a more clear way to write out multiple functions that are part of an object?

    - by Gemma
    I have the following: $scope.modalReset = function () { gridService.modalReset($scope); } $scope.rowAction = function (action, row) { gridService.rowAction(action, $scope, row, 'Question'); } $scope.submitItem = function (formData) { gridService.submitItem($scope, 'Question', formData); } Is there a way that these function calls could be written more simply. I am not looking to combine them. There are all functions that are part of the scope object.

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  • What design considerations should one take to receive text and multiple attachments via web?

    - by ramesh.nagul
    I am developing a web application to accept a bunch of text and attachments (1 or more) via email, web and other methods. I am planning to build a single interface, mostly a web service to accept this content. What design considerations should I make? I am building the app using ASP.NET MVC 2. Should the attachments be saved to disk or in the database? Should the unified single interface be a web service? Pros and cons to using web services to upload files

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  • How to automize multiple projects build process by including digital signature of exe in Delphi?

    - by user193655
    After building a project group of 2 projects with Delphi (2009) I digitally sign the 2 exes using InstallAware Code signing, an exe that shipped with Delphi 2009. How is it possible to automize the digital signature, so when I build I can also attach digital signature. For digital signing I use a pvk (private key) file and an spc (Sw publisher certificate) file. Subquestion: Moreover I created a project group because I have 2 exes, but they are almost the same, the only thing that changes is the Application icon and the application name (one is ProductOne.dpr, the other is ProductTwo.dpr). In practice I have 2 brands of the same product, I have a single build but activation keys details activate one or the other, anyway now I was asked to change the icon and the filename, and for this I need to build 2 projects, activation key is not enough anymore to distinguish between the 2. Anyway if there is a way to do this from a single project it would be better.

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  • Multiple IN statements for WHERE. Would this return good data?

    - by TheDudeAbides
    SELECT ['VISA CK - 021810$'].[ACCT NBR #1], ['VISA CK - 021810$'].[ALT CUST NM #1], ['VISA CK - 021810$'].[LAST USED] FROM ['VISA CK - 021810$'] WHERE ['VISA CK - 021810$'].[ALT CUST NM #1] IN ( SELECT ['VISA CK - 021810$'].[ALT CUST NM #1] FROM ['VISA CK - 021810$'] GROUP BY ['VISA CK - 021810$'].[ALT CUST NM #1] HAVING COUNT(['VISA CK - 021810$'].[ALT CUST NM #1]) > 1 ) AND ['VISA CK - 021810$'].[ACCT NBR #1] IN ( SELECT ['VISA CK - 021810$'].[ACCT NBR #1] FROM ['VISA CK - 021810$'] GROUP BY ['VISA CK - 021810$'].[ACCT NBR #1] HAVING COUNT(['VISA CK - 021810$'].[ACCT NBR #1]) > 1 )

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  • Way to check files in and out with multiple developers.

    - by Roeland
    I am a web developer working with 2-3 people including me. Our current setup is very simplistic. We try to let each other know when we are working on a specific file. We use FTP to edit our files. Recently we have run into the problem of 2 people accidentally editing one file, or working on a local file then uploading when another person just did the same. From what I have read I need some sort of control system. I have heard of subversion and mercurial. It seems that these systems may not be what I need though, since its just giving me different versions of the files. I don't know if it solves the issue of two people working on a file and overwriting each others work. What are your suggestions for solving my problem?

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  • Prototypes Object.extend with multiple objects that contain there own functions.

    - by erickreutz
    How would I achieve something along the lines of this.. var Persistence = new Lawnchair('name'); Object.extend(Lawnchair.prototype, { UserDefaults: { setup: function(callback) { // "save" is a native Lawnchair function that doesnt //work because // "this" does not reference "Lawnchair" // but if I am one level up it does. Say if I defined // a function called UserDefaults_setup() it would work // but UserDefaults.setup does not work. this.save({key: 'key', value: 'value'}); // What is this functions scope? // How do I access Lawnchairs "this" } }, Schedule: { refresh: function(callback) { } } }); //this get called but doesnt work. Persistence.UserDefaults.setup();

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  • Memory Leaks when touching UITableViewCells and poping off view.

    - by Falcon
    Hi All, I'm currently having a problem where the leaks tool is reporting a slew of memory leaks after clicking on cells within a UITableView and then hitting the back button and popping off the view. Majority of the leaks reported can not be traced back to any specific location in my code, they are: Leaked Object # Address Size Responsible Library Responsible Frame NSCFArray 2 < multiple > 64 UIKit -[UITouch(UITouchInternal) UITouch 2 < multiple > 128 GraphicsServices PurpleEventCallback Malloc 48 Bytes 2 < multiple > 96 Foundation -[NSCFArray insertObject:atIndex:] UIDelayedAction 2 < multiple > 96 UIKit -[UILongPressGestureRecognizer startTimer] NSCFArray 2 < multiple > 64 UIKit -[UILongPressGestureRecognizer touchesBegan:withEvent:] Malloc 32 Bytes 2 < multiple > 64 Foundation -[NSCFArray insertObject:atIndex:] Malloc 16 Bytes 2 < multiple > 32 Foundation -[NSCFSet unionSet:] Now I have commented out all my code in any touch event functions that I have written and it still leaks if I click on the cell a few times and then hit the back button to return to the previous view. Any ideas on what might actually be the problem here? Thanks,

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  • Preventing multiple reporting of the same rule violation in FxCop -- What is Id?

    - by Dave
    FxCop is currently reporting the same rule violation for a particular method -- it has two out parameters, because I want to return two values to the caller without creating a struct for it. I wonder if anonymous types would solve my problem, but I didn't know about them at the time I had written the method. Anyhow, I'm getting CheckId CA1021 reported once for each parameter. I've copied the SuppressMessage text from FxCop, and then realized that the Id for each message is different! To me, it seems like you only need the CheckId, so... what is the Id used for? I haven't been able to find information about it online. will the Id remain the same? I assume so, or SuppressMessage wouldn't work the way one would want it to is there a way to specify the SuppressMessage attribute so that it suppresses for all Ids?

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  • Can Log4net have multiple appenders write to the same file?

    - by adam0101
    I'm using a RollingFileAppender to log some info to a file with a conversionPattern (in the web.config) that looks like this for the header of each log section: <conversionPattern value="%date - %property{userId} - %property{method}%newline--------------------------------%newline%message%newline%newline"/> I'd like to log details under this header as bullet points. I'm currently trying to use another RollingFileAppender that logs to the same file with a simple conversionPattern of just a dash, like this: <conversionPattern value="- %message%newline"/> But these messages aren't making it into the log file. I'm using Log.Info() for the header and Log.Debug() for the bullet points and filtering each appender on their respective log levels. Is what I'm trying to do possible? Or is there a better way to get header and detail information into a log file from log4net?

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  • mouseover producing multiple images works in Firefox, but not i.e.

    - by tcantrel
    The code below allows the user to hover over 1 object and it not only replaces the object but also shows an additional object between the buttons. It works great in Firefox, but does not in Internet Explorer. HELP webpage: http://www.isp.ucar.edu/ Thx, Terri if ( < ocument.images) { img1on = new Image(); img1on.src = "images/buttons/button-beachon-on.gif"; img1off = new Image(); img1off.src = "images/buttons/button-beachon.gif"; img2on = new Image(); img2on.src = "images/buttons/button-bgs-on.gif"; img2off = new Image(); img2off.src = "images/buttons/button-bgs.gif"; img3on = new Image(); img3on.src = "images/buttons/button-iam-on.gif"; img3off = new Image(); img3off.src = "images/buttons/button-iam.gif"; img4on = new Image(); img4on.src = "images/buttons/button-nvia-on.gif"; img4off = new Image(); img4off.src = "images/buttons/button-nvia.gif"; img5on = new Image(); img5on.src = "images/buttons/button-utls-on.gif"; img5off = new Image(); img5off.src = "images/buttons/button-utls.gif"; img6on = new Image(); img6on.src = "images/buttons/button-water-on.gif"; img6off = new Image(); img6off.src = "images/buttons/button-water.gif"; img7on = new Image(); img7on.src = "images/buttons/button-exploratory-on.gif"; img7off = new Image(); img7off.src = "images/buttons/button-exploratory.gif"; // second image that does not appear in original button space img1ad = new Image(); img1ad.src = "images/buttons/beachon-overview-sm.gif"; img2ad = new Image(); img2ad.src = "images/buttons/bgs-overview-sm.gif"; img3ad = new Image(); img3ad.src = "images/buttons/iam-overview-sm.gif"; img4ad = new Image(); img4ad.src = "images/buttons/nvia-overview-sm.gif"; img5ad = new Image(); img5ad.src = "images/buttons/utls-overview-sm.gif"; img6ad = new Image(); img6ad.src = "images/buttons/water-overview-sm.gif"; img7ad = new Image(); img7ad.src = "images/buttons/exploratory-overview-sm.gif"; } function imgOn(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "on.src"); document["holder"].src = eval(imgName + "ad.src"); } } function imgOff(imgName) { if ( < ocument.images) { document[imgName].src = eval(imgName + "off.src"); document["holder"].src = "images/buttons/isp-overview-sm.gif"; } }

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  • Can I use multiple step definition files with SpecFlow?

    - by Roger Lipscombe
    I'm using SpecFlow to do some BDD-style testing. Some of my features are UI tests, so they use WatiN. Some aren't UI tests, so they don't. At the moment, I have a single StepDefinitions.cs file, covering all of my features. I have a BeforeScenario step that initializes WatiN. This means that all of my tests start up Internet Explorer, whether they need it or not. Is there any way in SpecFlow to have a particular feature file associated with a particular set of step definitions? Or am I approaching this from the wrong angle?

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  • Can you have multiple clipping regions in an HTML Canvas?

    - by emh
    I have code that loads a bunch of images into hidden img elements and then a Javascript loop which places each image onto the canvas. However, I want to clip each image so that it is a circle when placed on the canvas. My loop looks like this: $$('#avatars img').each(function(avatar) { var canvas = $('canvas'); var context = canvas.getContext('2d'); var x = Math.floor(Math.random() * canvas.width); var y = Math.floor(Math.random() * canvas.height); context.beginPath(); context.arc(x+24, y+24, 20, 0, Math.PI * 2, 1); context.clip(); context.strokeStyle = "black"; context.drawImage(document.getElementById(avatar.id), x, y); context.stroke(); }); Problem is, only the first image is drawn (or is visible). If I remove the clipping logic: $$('#avatars img').each(function(avatar) { var canvas = $('canvas'); var context = canvas.getContext('2d'); var x = Math.floor(Math.random() * canvas.width); var y = Math.floor(Math.random() * canvas.height); context.drawImage(document.getElementById(avatar.id), x, y); }); Then all my images are drawn. Is there a way to get each image individually clipped? I tried resetting the clipping area to be the entire canvas between images but that didn't work.

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  • TSQL - How to join 1..* from multiple tables in one resultset?

    - by ElHaix
    A location table record has two address id's - mailing and business addressID that refer to an address table. Thus, the address table will contain up to two records for a given addressID. Given a location ID, I need an sproc to return all tbl_Location fields, and all tbl_Address fields in one resultset: LocationID INT, ClientID INT, LocationName NVARCHAR(50), LocationDescription NVARCHAR(50), MailingAddressID INT, BillingAddressID INT, MAddress1 NVARCHAR(255), MAddress2 NVARCHAR(255), MCity NVARCHAR(50), MState NVARCHAR(50), MZip NVARCHAR(10), MCountry CHAR(3), BAddress1 NVARCHAR(255), BAddress2 NVARCHAR(255), BCity NVARCHAR(50), BState NVARCHAR(50), BZip NVARCHAR(10), BCountry CHAR(3) I've started by creating a temp table with the required fields, but am a bit stuck on how to accomplish this. I could do sub-selects for each of the required address fields, but seems a bit messy. I've already got a table-valued-function that accepts an address ID, and returns all fields for that ID, but not sure how to integrate it into my required result. Off hand, it looks like 3 selects to create this table - 1: Location, 2: Mailing address, 3: Billing address. What I'd like to do is just create a view and use that. Any assistance would be helpful. Thanks.

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  • Should Python 2.6 on OS X deal with multiple easy-install.pth files in $PYTHONPATH?

    - by ahd
    I am running ipython from sage and also am using some packages that aren't in sage (lxml, argparse) which are installed in my home directory. I have therefore ended up with a $PYTHONPATH of $HOME/sage/local/lib/python:$HOME/lib/python Python is reading and processing the first easy-install.pth it finds ($HOME/sage/local/lib/python/site-packages/easy-install.pth) but not the second, so eggs installed in $HOME/lib/python aren't added to the path. On reading the off-the-shelf site.py, I cannot for the life of me see why it's doing this. Can someone enlighten me? Or advise how to nudge Python into reading both easy-install.pth files? Consolidating both into one .pth file is a viable workaround for now, so this question is mostly for curiosity value.

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  • How to use a nested form for multiple models in one form?

    - by Magicked
    I'm struggling to come up with the proper way to design a form that will allow me to input data for two different models. The form is for an 'Incident', which has the following relationships: belongs_to :customer belongs_to :user has_one :incident_status has_many :incident_notes accepts_nested_attributes_for :incident_notes, :allow_destroy => false So an incident is assigned to a 'Customer' and a 'User', and the user is able to add 'Notes' to the incident. I'm having trouble with the notes part of the form. Here how the form is being submitted: {"commit"=>"Create", "authenticity_token"=>"ECH5Ziv7JAuzs53kt5m/njT9w39UJhfJEs2x0Ms2NA0=", "customer_id"=>"4", "incident"=>{"title"=>"Something bad", "incident_status_id"=>"2", "user_id"=>"2", "other_id"=>"AAA01-042310-001", "incident_note"=>{"note"=>"This is a note"}}} It appears to be attempting to add the incident_note as a field under 'Incident', rather than creating a new entry in the incident_note table with an incident_id foreign key linking back to the incident. Here is the 'IncidentNote' model: belongs_to :incident belongs_to :user Here is the form for 'Incident': <% form_for([@customer,@incident]) do |f| %> <%= f.error_messages %> <p> <%= f.label :other_id, "ID" %><br /> <%= f.text_field :capc_id %> </p> <p> <%= f.label :title %><br /> <%= f.text_field :title %> </p> <p> <%= label_tag 'user', 'Assign to user?' %> <%= f.select :user_id, @users.collect {|u| [u.name, u.id]} %> </p> <p> <%= f.label :incident_status, 'Status?' %> <%= f.select :incident_status_id, @statuses.collect {|s| [s.name, s.id]} %> </p> <p> <% f.fields_for :incident_note do |inote_form| %> <%= inote_form.label :note, 'Add a Note' %> <%= inote_form.text_area :note, :cols => 40, :rows => 20 %> <% end %> </p> <p> <%= f.submit "Create" %> </p> <% end %> And finally, here are the incident_controller entries for New and Create. New: def new @customer = current_user.customer @incident = Incident.new @users = @customer.users @statuses = IncidentStatus.find(:all) @incident_note = IncidentNote.new respond_to do |format| format.html # new.html.erb format.xml { render :xml => @incident } end end Create: def create @users = @customer.users @statuses = IncidentStatus.find(:all) @incident = Incident.new(params[:incident]) @incident.customer = @customer @incident_note = @incident.incident_note.build(params[:incident_note]) @incident_note.user = current_user respond_to do |format| if @incident.save flash[:notice] = 'Incident was successfully created.' format.html { redirect_to(@incident) } format.xml { render :xml => @incident, :status => :created, :location => @incident } else format.html { render :action => "new" } format.xml { render :xml => @incident.errors, :status => :unprocessable_entity } end end end I'm not really sure where to look at this point. I'm sure it's just a limitation of my current Rails skill (I don't know much). So if anyone can point me in the right direction I would be very appreciative. Please let me know if more information is needed! Thanks!

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  • Help need to with MySQL query to join data spanning multiple tables and use data as column names

    - by gurun8
    I need a little help putting together a SQL query that will give me the following resultsets: and The data model looks like this: The tricky part for me is that the columns to the right of the "Product" in the resultset aren't really columns in the database but rather key/value pairs spanned across the data model. Table data is as follows: My apologies in advance for the image heavy question and the image quality. This just seemed like the easiest way to convey the information. It'll probably take someone less time to write the query statement to achieve the results than it did for me to assemble this question. By the way, the "product_option" table image is truncated but it illustrated the general idea of the data structure. The MySQL server version is 5.1.45.

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  • Setting up java configurations in eclipse. multiple .param files

    - by Charlie
    I'm going to be using ECJ for doing genetic programming and I haven't touched java in years. I'm working on setting up the eclipse environment and I'm catching a few snags. The ECJ source has several packages, and several sample programs come along with it. I ran one sample program (called tutorial1) by going to the run configurations and adding -file pathToParamsFile to the program arguments. This made it point to the params file of that tutorial and run that sample. In a new example I am testing (from the package gui) there are TWO params files. I tried pointing to just one param file and a program ran in the console, but there was supposed to be a GUI which did not load. I'm not sure what I'm doing wrong. Any help would be greaaatly appreciated.

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  • Actionscript 3: Monitoring the activity level for multiple Microphones doesn't seem to work.

    - by Dave
    For a project I want to show all available webcams and microphones, so that the user can easily select whichever webcam/microphone combination they prefer. I run into an issue with the microphones listing though. Each microphone is listed with an activity animation and it's name. I am able to list all Microphones just fine (using the Microphone.names Array), but it seems like I can only get the activity viewer to work for one microphone. The other microphones show up with '-1' activity, which (as far as I know) is Flex for 'present, but not in use'. When unplugging the microphone that does show activity, the next one (in my case, the mic-in line on my motherboard) shows up with '0' activity (it's not connected, so that makes sense). During my testing I have a total of 3 microphones available, the not-connected onboard mic-in port, and two connected microphones. For testing purposes I use a timer that traces the current microphone activity each 100ms and the graph is also shown. It does not seem to matter what default microphone I set via flash' settings panel. The code I've only attached the revelant code snippets below to make it easier for you to read through them. Please let me know if you prefer the entire code. Main application.mxml Note: cont is a VBox. i is defined before this code snippet. var mics:Array = Microphone.names; for(i=0; i < mics.length; i++){ var mic:settingsMicEntry = new assets.settingsMicEntry; mic.d = {name: mics[i], index: i}; cont.addChild(mic); } assets/settingsMicEntry.mxml timer is defined before this code snippet. the SoundTransform is added to silence local microphone playback. Excluding this code does not solve the problem, sadly (I've tried). display is an MXML Canvas object. mic = Microphone.getMicrophone(d.index); if(mic){ // Temporary: The Microphones' visualizer var bar:Box = new Box(); bar.y = 50; bar.height = 0; bar.width = 66; bar.setStyle("backgroundColor", 0x003300); display.addChild(bar); var tf:SoundTransform = new SoundTransform(0); mic.setLoopBack(true); mic.soundTransform = tf; timer = new Timer(100); timer.addEventListener(TimerEvent.TIMER, function(e:TimerEvent):void{ var h:int = Math.floor((display.height/100)*mic.activityLevel); bar.height = (h>-1) ? h : 0; bar.y = (h>-1) ? display.height-h : display.height; trace('TIMER: '+h+' from '+d.name); }); timer.start(); } I'm pulling my hear out here, so any help is much appreciated! Thanks, -Dave Ps.: Pardon the messiness of the code!

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  • Consolidate the same image used multiple times in a PDF.

    - by Jack
    I am generating PDF documents using DevExpress XtraReports. I am using the same image over and over (in rows of status lights). The PDF generated seems to duplicate the image definition for each image included. I would prefer if it included the image once and referenced it wherever it needed another copy - this would drastically reduce the size of my PDF docs. Is there any way to achieve this using DevExpress or even post processed via a third party application. Any help is appreciated.

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  • Can I populate multiple DropDownLists from one SqlDataSource using parameters?

    - by death_au
    Basically, I have four asp:DropDownLists and I wish to populate all of them from the same table, with certain conditions. For example, I have this data source: <asp:SqlDataSource ID="ReferenceDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:mrapConnectionString1 %> SelectCommand="SELECT * FROM [reference_data] WHERE ([component] = @component)" > <SelectParameters> <asp:Parameter DefaultValue="MB" Name="component" Type="String" /> </SelectParameters> </asp:SqlDataSource> And I want to know if I can change that component parameter to be different for each of my four dropdown lists. I tried adding the following code on the DataBinding event for my DropDown: ReferenceDataSource1.SelectParameters.Remove(ReferenceDataSource1.SelectParameters["component"]); ReferenceDataSource1.SelectParameters.Add("component", "MB"); But I ironically got a StackOverflowException...

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  • HTTP GET: Same GET-Parameter multiple Times, is this allowed by RFCs?

    - by bernhard
    Hello, are all "Standard Compliant (HTTP RFC?)" Web-Servers forced to "somehow" provide some methods to get all Parameters with the same name as some kind of list/array? Or will will using the same parameter name lead to overwriting: Example: http://www.stackoverflow?myparam=value1&myparam=value2 Will this lead to myparam holding the values "value1,value2" or only "value2" (due to overwriting and only using the last one). Is this behaviour mandated by some standard? thanks bernhard

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