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  • Fluent Nhibernate mapping related items

    - by Josh
    I am trying to relate 2 items. I have a table that is simply an Id field, and then 2 columns for the Item Id's to relate. I want it to be a 2 way relationship - that is, if the items appear twice in the table, I only want one relationship connection back. So, here's my item: public class Item { public virtual Guid ItemId {get; set;} public virtual string Name {get; set;} public virtual IList<Item> RelatedItems {get; set;} } The table for relating the items looks like this: CREATE TABLE RelatedItems ( RelatedItemId uniqueidentifier NOT NULL, ItemId uniqueidentifier NOT NULL, RelatedId uniqueidentifier NOT NULL, CONSTRAINT PK_RelatedItems PRIMARY KEY CLUSTERED (RelatedItemId) ) What is the best way to map this connection?

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  • Is it possible to get collection of some ejb`s instances from container?

    - by kislo_metal
    Hi! Scenario: I have some @Statefull bean for user session (not an http session, it is web services session). And I need to manage user`s session per user. Goal: I need to have possibility to get collection of @Statefull UserSession`s instances and control maximum number of session`s per user, and session`s life time. Q: Is it possible to get Collection of ejb`s instances from ejb container, instead of storing them in some collection, map etc. ? I am using glassfish v3 , ejb 3.1, jax-ws. Thank You!

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  • How to combine Option values in Scala?

    - by Jeff
    Hi! I want to be able to apply an operation f: (T,T) => T to two Option[T] values in Scala. I want the result to be None if any of the two values is None. More specifically, I want to know if is there a shorter way to do the following: def opt_apply[T](f: (T,T) => T, x: Option[T], y: Option[T]): Option[T] = { (x,y) match { case (Some(u),Some(v)) => Some(f(u,v)) case _ => None } } I have tryied (x zip y) map {case (u,v) => f(u,v)} but the result is an Iterator[T] not an Option[T]. Any help will be appreciated. Thanks.

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  • Game Objects Talking To Each Other

    - by PhilCK
    What is a good way of dealing with objects and having them talk to each other? Up until now all my games hobby/student have been small so this problem was generally solved in a rather ugly way, which lead to tight integration and circular dependencies. Which was fine for the size of projects I was doing. However my projects have been getting bigger in size and complexity and now I want to start re-using code, and making my head a simpler place. The main problem I have is generally along the lines of Player needs to know about the Map and so does the Enemy, this has usually descended into setting lots of pointers and having lots of dependencies, and this becomes a mess quickly. I have thought along the lines of a message style system. but I cant really see how this reduces the dependencies, as I would still be sending the pointers everywhere. Thanks. PS: I guess this has been discussed before, but I don't know what its called just the need I have.

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  • C# Dataset usage necessary before passing to GridView datasource?

    - by Goober
    Scenario Lets say for example I have a series of events that fire continually every half second presenting me with an object containing some bits of information. There are always between 10 and 15 objects that are being updated constantly. Since these bits of information are changing continually I want to display them in a GridView. When I do so, I want the user to see the data displayed in the gridview and actually be updated as opposed to just a continually extending list being printed and incrementing (like writeline on the console). Question Is the best way to achieve this to map my objects to a dataset and have the dataset mapped to the gridview? Thoughts Will this allow the gridview to just be "UPDATED" as opposed to being added to? Any implementation suggestions would be greatly appreciated. EDIT: it MUST be windows forms (I use DevExpress too)

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  • No action responded to search

    - by gazza58
    i have defined a method called 'search' in my RecipesController which is not private. in routes.rb i have the following: map.connect 'recipes/search', :controller => :recipes, :action => :search i get the following error: No action responded to search. Actions: ... where my method 'search' does not appear in the actions list. if i change the method name from 'search' to 'searchthings' and the action in routes to 'searchthings' then this seems to work. what am i missing here?

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  • Automatically Host User Domains in Rails/Apache

    - by Steve F
    Hi, I'm currently developing a user facing web application that gives each new user their own subdomain on the site, which is fine (using subdomain_fu), but is there a way to let a user map their own domain to this subdomain? I know how to do this manually through SSH-ing into the server and editing the Apache Vhosts file by hand, but is there a way to do this automatically so that a user simply enters their domain into a box on the site (obviously they'd have to change their own DNS elsewhere)? I'm using Ruby 1.8 and Rails 2.3.3 on top of Apache. Essentially letting; http://user.application.com/article-1 be accessed from http://userdomain.com/article-1 Thanks for any help!

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  • Reason for different segments in Linux on x86

    - by anjruu
    Hey all, So, I know that Linux uses four default segments for an x86 processor (kernel code, kernel data, user code, user data), but they all have the same base and limit (0x00000000 and 0xfffff), meaning each segment maps to the same set of linear addresses. Given this, why even have user/kernel segments? I understand why there should be separate segments for code and data (just due to how the x86 processor deals with the cs and ds registers), but why not have a single code segment and a single data segment? Memory protection is done through paging, and the user and kernel segments map to the same linear addresses anyway. Thanks! anjruu

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  • Problem with nhibernate join

    - by MexicanHacker
    I'm trying to do a join like this using fluent nhibernate: Id(x => x.Id); Map(x => x.SourceSystemRecordId,"sourceSystemRecord_id"); Then Join("cat.tbl_SourceSystemRecords", SourceSystemRecords); But, it seems I don't have a way to specify the column I want to join with from the first table, in this case I need to join on SourceSystemRecordId and not on Id Is there any way I can specify this? I tried References() but that requires me to create an object for this relationship, what I need is to aggregate the columns in sourcesystem records to the ones in the main table.

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  • ruby on rails sub directory inside in the 'Views' main directory

    - by Kum
    Hello, am a newbie in ruby on rails and am stuck with a simple problem of routing. I have my controller 'sub' and the 'Views' folder containing the add,edit,new erb files. In my routes file, i have 'map.resources :subs'. Until now, everything is fine. Problem: I moved the add,edit,new erb files into a subfolder called 'admin' inside the 'Views' main directory. I have no idea how to call those erb files from that 'admin' subdir. By default, it is looking for /app/views/subs/index.html.erb, and i want it to look in /app/views/subs/admin/index.html.erb Please can anyone tell me how to do this. Many many thanks

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  • Complex class using PHP soapserver mapclass

    - by user559343
    Hi all, I need to create a server for processing SOAP requests. I have the wsdl and xml specifications, but I have a doubt: the xml elements are pretty complex, they are not simple type, but they have parent/child relationships (e.g. I have a Book class with an author subclass). How can I map this to PHP classes? In this example, should I create an author class i.e.: class Author { public $name; public $surname; } and then class Book { public $author; } will $author be a class of type Author? Or a typed array? Any help will be appreciated Thanks and happy new year!

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  • No supported translation to SQL

    - by derans
    We have this code: private IList<InfoRequest> GetBy(Func<InformationRequest, string> func, string searchby) { var requests = _dc.InformationRequests .Where(x => func.Invoke(x).Contains(searchby)) .OrderBy(y => y.RequestDate); return Mapper.Map<InformationRequest[], InfoRequest[]>(requests.ToArray()); } It continues to throw the no supported translation to SQL error. Any ideas on the problem or how to resolve it?

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  • In-memory data structure that supports boolean querying

    - by sanity
    I need to store data in memory where I map one or more key strings to an object, as follows: "green", "blue" -> object1 "red", "yellow" -> object2 I need to be able to efficiently receive a list of objects, where the strings match some boolean criteria, such as: ("red" OR "green") AND NOT "blue" I'm working in Java, so the ideal solution would be an off-the-shelf Java library. I am, however, willing to implement something from scratch if necessary. Anyone have any ideas? I'd rather avoid the overhead of an in-memory database if possible, I'm hoping for something comparable in speed to a HashMap (or at least the same order of magnitude).

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  • what's wrong with this code..

    - by rockers
    $('#PbtnSubmit').click(function() { if ($("#PricingEditExceptions input:checkbox:checked").length > 0) { var chec = $('#PricingEditExceptions input[type=checkbox]:checked'); var strIDs = chec.map(function() { return $(this).val(); }).get().join(","); alert(PMstrIDs); $('#1_exceptiontypes').attr('value', exceptiontypes) $('#1_PMstrIDs').attr('value', PMstrIDs); } else { alert("please select atleast one exception"); return false; } }); var checked = $('#PricingEditExceptions input[type=checkbox]:checked'); this code returns correct value in Firefox but not in IE8.. is that something need to change? why I am not getting all the checked checkboxes in IE8? please can anybody help me out? thanks

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  • ASP.net: Efficient ways to convert DataSets to GenericCollection (Of ObjectType)

    - by jlrolin
    I currently have a function that gets some data from the database and puts it into a dataset. The return type on my function is GenericCollection (Of CustomerDetails) If I do this: Dim dataset As DataSet = Read(strSQL.ToString) 'Gets Data from DB What's the most efficient way to map the dataset results to an collection of objects. More importantly, since I'm using GenericCollection, is there a way to do this in which I can call a function from the ObjectType class (CustomerDetails) that would have a means to converting that specific object. Or is there a way in which I can use a function that would handle all types? Is there a way to do something like: Return returnedResults.TransformDataSet(dataset) In which returnedResults is an object collection Of CustomerDetails, or would it simply be easier to have TransformDataSet return an object collection Of CustomerDetails by itself? Thanks for any help.

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  • Text in gtk.ComboBox without active item

    - by Yotam
    The following PyGTk code, gives a combo-box without an active item. This serves a case where we do not want to have a default, and force the user to select. Still, is there a way to have the empty combo-bar show something like: "Select an item..." without adding a dummy item? import gtk import sys say = sys.stdout.write def cb_changed(w): say("Active index=%d\n" % w.get_active()) topwin = gtk.Window() topwin.set_title("No Default") topwin.set_size_request(0x100, 0x20) topwin.connect('delete-event', gtk.main_quit) vbox = gtk.VBox() ls = gtk.ListStore(str, str) combo = gtk.ComboBox(ls) cell = gtk.CellRendererText() combo.pack_start(cell) combo.add_attribute(cell, 'text', 0) combo.connect('changed', cb_changed) ls.clear() map(lambda i: ls.append(["Item-%d" % i, "Id%d" % i]), range(3)) vbox.pack_start(combo, padding=2) topwin.add(vbox) topwin.show_all() gtk.main() say("%s Exiting\n" % sys.argv[0]) sys.exit(0)

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  • MapPath strange error

    - by Cristian Boariu
    Hi, I have the following code: string path = "~/Others/Muzica/Demo/"+interpret+"_"+album+"/"; CMSUtils.CreateFolder(MapPath(path)); where CreateFolder method is like: public static void CreateFolder(string path) { if (!System.IO.Directory.Exists(path)) { System.IO.Directory.CreateDirectory(path); } } So i create that folder if it does not exists... All works great locally BUT i do not understand why, if i put it on the server it gives: Failed to map the path '/gramma_prod/Others/Muzica/Demo/Vitamina C_De n-ai fi fost Tu /'. at CMSUtils.CreateFolder(MapPath(path)); I have checked if: /gramma_prod/Others/Muzica/Demo/ exists on the server and of course it exists... Does anybody see the problem?

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  • Jetty: Mount to a directory on a different host

    - by jettyQuestion
    I'm looking to map to a directory on a different host using Jetty/Maven when working locally. I've found you can do this w/ Apache using mod_jk (JkMount/JkUnMount), but haven't figured it how to do the same on jetty. On our dev/q/live servers, we have Apache in front of JBoss and use mod_jk to do this. Locally, we're using jetty To give you an idea of what I'm talking about, this is how you would configure Apache to accomplish this: in httpd.conf: JkMount /images/* host2 JkMount /* host2 JkUnMount /images/* host1 workers.properties: worker.list=host2,host1 worker.host2.host=host-2.theDomain.com worker.host2.port=46654 worker.host1.host=host-1.theDomain.com worker.host1.port=46655 Is there a way to configure Jetty to do the same thing? Btw, locally, I'm using the Maven plugin for Eclipse if that makes a difference. thanks!

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  • Warning on standard headers after upgrading to NetBeans 6.8...

    - by paul
    After upgrading to NetBeans 6.8 on my Mac, some standard headers generate a warning. The warning is "There are unresolved includes inside <string>". <string> is just an example and <iostream> and <map> have the same warning. The project builds and runs fine; however, I would like to resolve these warnings. Has anybody else seen this problem? And is there any way to make that warning go away? I also didn't see this problem when I upgraded to 6.8 on Linux.

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  • How can I find out how much memory an instance of a C++ class consumes?

    - by Shadow
    Hi, I am developing a Graph-class, based on boost-graph-library. A Graph-object contains a boost-graph, so to say an adjacency_list, and a map. When monitoring the total memory usage of my program, it consumes quite a lot (checked with pmap). Now, I would like to know, how much of the memory is exactly consumed by a filled object of this Graph-class? With filled I mean when the adjacency_list is full of vertices and edges. I found out, that using sizeof() doesn't bring me far. Using valgrind is also not an alternative as there is quite some memory allocation done previously and this makes the usage of valgrind impractical for this purpose. I'm also not interested in what other parts of the program cost in memory, I want to focus on one single object. Thank you.

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  • ruby: sum corresponding members of two arrays

    - by jjnevis
    I've got two (or more) arrays with 12 integers in each (corresponding to values for each month). All I want is to add them together so that I've got a single array with summed values for each month. Here's an example with three values: [1,2,3] and [4,5,6] = [5,7,9] The best I could come up with was: [[1,2,3],[4,5,6]].transpose.map{|arr| arr.inject{|sum, element| sum+element}} #=> [5,7,9] Is there a better way of doing this? It just seems such a basic thing to want to do.

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  • To find busstop with timetable data and more near me(current postion)

    - by Sabby
    I am developing an application which helps the user to find the bus stops near him through his current latitude and longitude. This will also give the time table of the bus, route direction, bus name etc. I searched over the google but didn't get success. I tried the trimet api, but that was also not much helpful as it only works for Portland area and the pin is always dropped on the map on Portland. Please help me! Is there any api to do this? This app is for our client. User will input the route id, loc id or what and will get all the detail of near by bus stops and their lat,long.

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  • Problem removing a dynamic form field in jquery

    - by rshivers
    I'm trying to remove a dynamic form field by click a button. It will also subtract whatever values it had from the total amount from my calculation. This is the code: function removeFormField(id) { var id = $(id).attr("name"); $('#target1').text($("#total" + id).map(function() { var currentValue = parseFloat(document.getElementById("currentTotal").value); var newValue = parseFloat($("#total" + id).text()); var newTotal = currentValue - newValue; document.getElementById("currentTotal").value = newTotal; return newTotal; }).get().join()); $(id).remove(); } Okay, it will do the subtraction portion of the code with no problem, this issue is with the last line to remove the field. If I comment out the rest of the code it will work, but not with the rest of the code. I know this is something simple, yet I can't seem to wrap my mind around it. Can someone please help?

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  • In Rails models; for symbols get automatically converted to YAML when saving to DB. What is the corr

    - by Ram
    In my model example Game, has a status column. But I usually set status by using symbols. Example self.status = :active MATCH_STATUS = { :betting_on => "Betting is on", :home_team_won => "Home team has won", :visiting_team_won => "Visiting team has one", :game_tie => "Game is tied" }.freeze def viewable_status MATCH_STATUS[self.status] end I use the above Map to switch between viewable status and viceversa. However when the data gets saved to db, ActiveRecord appends "--- " to each status. So when I retrieve back the status is screwed. What should be the correct approach?

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  • Java: empty ArrayLists in a foor loop

    - by Patrick
    hi, I'm reusing the same ArrayList in a for loop, and I use for loop results = new ArrayList<Integer>(); experts = new ArrayList<Integer>(); output = new ArrayList<String>(); .... to create new ones. I guess this is wrong, because I'm allocating new memory. Is this correct ? If yes, how can I empty them ? Added: another example I'm creating new variables each time I call this method. Is this good practice ? I mean to create new precision, relevantFound.. etc ? Or should I declare them in my class, outside the method to not allocate more and more memory ? public static void computeMAP(ArrayList results, ArrayList experts) { //compute MAP double precision = 0; int relevantFound = 0; double sumprecision = 0; thanks

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