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  • using Autofac in a multi-layered architecture

    - by Kamyar
    I'm fairly new to the DI/IoC concept and would like to use Autofac in a 3-layered ASP.NET Webforms application. UI layer: An ASP.NET webforms website. BLL: Business logic layer which calls the repositories on DAL. DAL: .EDMX file (Entity Model) and ObjectContext with Repository classes which abstract the CRUD operations for each entity. Entities: The POCO Entities. Persistence Ignorant. Generated by Microsoft's ADO.Net POCO Entity Generator. I have asked a more general question here. Basically, I'd like to create an obejctcontext per HttpContext in my DAL. But i don't want to add a reference to DAL in UI or access to HttpContext in DAL directly. I guess this is where IoC tools come to play. The answer to my previous question is a very good example of using Windsor Castle. I'd like to use Autofac as my IoC tool and Don't know how to achieve this. (How to access DAL in application_start to register the component while I don't want to reference it in my UI, what are the proper references to be able to use DAL component in BLL with Autofac, Should I register BLL as a component with Autofac too) Sorry folks for not providing an explicit question and requesting a kind of working example, But I'm very unfamiliar to the whole IoC concept and I don't think I can achieve it to use in my current time-limited project.

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  • Building a many-to-many db schema using only an unpredictable number of foreign keys

    - by user1449855
    Good afternoon (at least around here), I have a many-to-many relationship schema that I'm having trouble building. The main problem is that I'm only working with primary and foreign keys (no varchars or enums to simplify things) and the number of many-to-many relationships is not predictable and can increase at any time. I looked around at various questions and couldn't find something that directly addressed this issue. I split the problem in half, so I now have two one-to-many schemas. One is solved but the other is giving me fits. Let's assume table FOO is a standard, boring table that has a simple primary key. It's the one in the one-to-many relationship. Table BAR can relate to multiple keys of FOO. The number of related keys is not known beforehand. An example: From a query FOO returns ids 3, 4, 5. BAR needs a unique key that relates to 3, 4, 5 (though there could be any number of ids returned) The usual join table does not work: Table FOO_BAR primary_key | foo_id | bar_id | Since FOO returns 3 unique keys and here bar_id has a one-to-one relationship with foo_id. Having two join tables does not seem to work either, as it still can't map foo_ids 3, 4, 5 to a single bar_id. Table FOO_TO_BAR primary_key | foo_id | bar_to_foo_id | Table BAR_TO_FOO primary_key | foo_to_bar_id | bar_id | What am I doing wrong? Am I making things more complicated than they are? How should I approach the problem? Thanks a lot for the help.

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  • rake db:migrate gives a uninitialized class variable @@configuration in Rails error

    - by PK
    uninitialized class variable @@configuration in Rails /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/initializer.rb:19:in `configuration' /usr/lib/ruby/gems/1.8/gems/thoughtbot-factory_girl-1.2.2/lib/factory_girl.rb:24 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' This is the initial part of the enviroment.rb: RAILS_GEM_VERSION = '2.1.0' unless defined? RAILS_GEM_VERSION require File.join(File.dirname(__FILE__), 'boot') Rails::Initializer.run do |config| config.gem "oauth", :version => "0.2.7", :lib => "oauth"

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  • Rails uniqueness constraint and matching db unique index for null column

    - by Dave
    I have the following in my migration file def self.up create_table :payment_agreements do |t| t.boolean :automatic, :default => true, :null => false t.string :payment_trigger_on_order t.references :supplier t.references :seller t.references :product t.timestamps end end I want to ensure that if a product_id is specified it is unique but I also want to allow null so I have the following in my model: validates :product_id, :uniqueness => true, :allow_nil => true Works great but I should then add an index to the migration file add_index :payment_agreements, :product_id, :unique => true Obviously this will throw an exception when two null values are inserted for product_id. I could just simply omit the index in the migration but then there's the chance that I'll get two PaymentAgreements with the same product_id as shown here: Concurrency and integrity My question is what is the best/most common way to deal with this problem

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  • useing my own db info to replace parts of a url and open in a iframe

    - by Morpheus Lucid
    print ("http://maps.google.com/maps/api/staticmap?center=");echo $City;print (",");echo $City;print (","); echo $State;print ("&zoom=14&size=500x500&maptype=roadmap&markers=color:blue|label:S|"); echo $Latitude;print (",");echo $Longitude;print ("&sensor=false")"); when page is loaded it prints right but would like to take the results from this and put into a iframe so when page loads it shows the map of the entry

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  • How to create a custom ADO Multi Dimensional Catalog with no database

    - by Alan Clark
    Does anyone know of an example of how to dynamically define and build ADO MD (ActiveX Data Objects Multidimensional) catalogs and cube definitions with a set of data other than a database? Background: we have a huge amount of data in our application that we export to a database and then query using the usual SQL joins, groups, sums etc to produce reports. The data in the application is originally in objects and arrays. The problem is the amount of data is so large the export can take 2 hours. So I am trying to figure out a good way of querying the objects in memory, either by a custom OLAP algorithm or library, or ADO MD. But I haven't been able to find an example of using ADO MD without a database behind it. We are using Delphi 2010 so would use ADO ActiveX but I imagine the ADO.NET MD is similar. I realize that if the application data was already stored in a database the problem would solve itself. Also if Delphi had LINQ capability I could query the objects and arrays that way.

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  • Using the iPhones Multi-Touch Keyboard Search Button

    - by senfo
    I have a regular text field on a view and I'd like to make use of the search button on the iPhones keyboard. For the life of me, I can't figure out how to do this. There doesn't seem to be any event exposed that I can wire up that specifically relates to the search button on the keyboard. I've googled around, but I also haven't found anything related to this subject.

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  • Returning PHP Multi-Dimension Array to Javascript/AJAX

    - by GregH
    My understanding is that in order to return a complex PHP variable to Javascript, it should be done via AJAX and json_encode. Could somebody give me an actual example (both PHP and Javascript code) of this? Lets say we have the two-dim array in PHP: $twoDArr = array( array('Greg', 44, 'Owner'), array('Joe', 23, 'Renter'), array('Susan', 39, 'Owner'), array('John', 32, 'Renter) ); How would we return this to an analogous two dimensional array in javascript using json_encode?

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  • Multi-level clones with Git?

    - by Chad Johnson
    So, I'm thinking of having the following centralized setup with Git (each of these are clones): stable development developer1 developer2 developer3 So, I created my stable repository git --bare init made the 'development' clone git clone ssh://host.name//path/to/stable/project.git development and made a 'developer' clone git clone ssh://host.name//path/to/development/project.git developer So, now, I make a change, commit, and then I push from my developer account git commit --all git push and the change goes to the development clone. But now, when I ssh to the server, go to the development clone directory, and run "git fetch" or "get pull", I don't see the changes. So what do I do? Am I totally misunderstanding things and doing things wrong? How can I see the changes in the 'development' clone that I pushed from my 'developer' clone? This worked fine in Mercurial.

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  • Multi-Array of XML Requests

    - by sologhost
    OMG, I am in need of a way to set up arrays of XML Requests based on the idShout - 1. So it would be something like this... var req = new Array(); req[idShout - 1] = ALL XML Data... Here's what I got so far but it's not working at all :( var idShout; var req = new Array(); function htmlRequest(url, params, HttpMethod) { req[req.push] = ajax_function(); for (i=0;i<req.length;i++) { if (req[i]) { if (HttpMethod == "GET") { req[i].onreadystatechange = function() { if (req[i].readyState != 4) return; if (req[i].responseText !== null && req[i].status == 200) { document.getElementById("shoutbox_area" + idShout).innerHTML = req[i].responseText; } } } req[i].open(HttpMethod,url,true); if (HttpMethod == "POST") req[i].setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); if (params == "") req[i].send(null); else req[i].send(params); return req[i]; } else return null; } } function ajax_function() { var ajax_request = null; try { // Opera 8.0+, Firefox, Safari ajax_request = new XMLHttpRequest(); } catch (e) { // IE Browsers try { ajax_request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { ajax_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { //No browser support, rare case return null; } } } return ajax_request; } function send() { var send_data = "shoutmessage=" + document.getElementById("shout_message" + idShout).value; var url = smf_prepareScriptUrl(smf_scripturl) + "action=dreamaction;sa=shoutbox;xml;send_shout="+ idShout; htmlRequest(url, send_data, "POST"); document.getElementById("shout_message" + idShout).value = ""; document.getElementById("shout_message" + idShout).focus(); return true; } function startShouts(refreshRate, shoutCount) { clearInterval(Timer[shoutCount-1]); idShout = shoutCount; show_shouts(); Timer[shoutCount - 1] = setInterval("show_shouts()", refreshRate); return; } function show_shouts() { var url = smf_prepareScriptUrl(smf_scripturl) + "action=dreamaction;sa=shoutbox;xml;get_shouts=" + idShout; htmlRequest(url, "", "GET"); } Any help at all on this would be greatly appreciated... Basically, I'm setting the Timer Arrays in a different function before this, and I call startShouts which is supposed to show all of the information, but startShouts gets called more than once, which is why I have idShout set to equal shoutCount. So it will go something like this: shoutCount = 1, shoutCount = 2, shoutCount = 3, everytime it is being called. So I set the req[idShout - 1] array and it should return the result right?? Well, I get no errors in Firefox in the error console with this code above, but it doesn't work... Any ideas anyone?? As it needs to output into more than 1 area... argg. Thanks for any help you can offer here :) Thanks guys :)

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  • CSS sidebar multi-level menu

    - by NachoF
    Can you guys point me in the right direction?? I want to add sidebar multilevel functionality to this template. So when I hover over one of the items in the main menu some subitems slide to the right... preferably using only css and mantaining the style/color/look, etc... I suck at css, please help.

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  • [Apache Camel] Generating multiple files based on DB query in a nice way

    - by chantingwolf
    Dear all, I have a following question. I have to generate many files based on sql query. Let's say for example, I have get from database a list of orders made today and genarate file for each order and later store each file on ftp. Ideally I would like to get follewing. Not quite sure how to get it. from(MyBean).to(Ftp) The problem and main question is how to generate multiple messages by custom bean (for example). I am not sure if splitter EIP is ok in this case because in my case I have not just one message to split, but I just have to generate and send many messages. http://camel.apache.org/splitter.html I hope, someone meet this problem before. If the task will be to generate just one file - everything is quite simple - you need just fill Exchange.OutMessage (or something like this). But what about multiple files - I really can't get, how to manage this situation. P.S. Sorry if this question is stupid. I am novice in Camel (working with it just for coupe weeks). It's a great tool. Actually, that's why I want to use in in the best way. Thanks a lot.

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  • Convert json data to javascript array - in multi-dimensional sense

    - by AW-GWTF899
    I have a json array say { "People": { "Person": [ {"FirstName": "John", "LastName": "Smith"} {"FirstName": "Joe", "LastName": "Bloggs"} {"FirstName": "Wendy", "LastName": "Deng"} ] } } And I want to convert this into a javascript array (something like this) var persons = [ ["FirstName", "John", "LastName", "Smith"], ["FirstName", "Joe", "LastName", "Bloggs"], ["FirstName", "Wendy", "LastName": "Deng"] ]; How do I accomplish this? Hope my question makes sense and I realise the javascript array initialization may not be the correct way to put it. Thanks.

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  • em.persist seems doesn't persist data on postgreSQL db

    - by Mario
    I've got a simple java main which must write bean data on a PostgreSQL database. I use Entity manager to persist or update object. I use hibernate and toplink driver connection which are specified in persistence.xml file. When I call em.persist(obj), nothing is saved on database, I don't know why. here is my simple code: private static void importa(FileReader f) throws IOException { EntityManagerFactory emf = Persistence .createEntityManagerFactory("orpt2"); EntityManager em = emf.createEntityManager(); dispositivoMedico = new DispositivoMedico(); dispositivoMedico.setCategoria("prova"); dispositivoMedico.setCodice("323"); em.persist(dispositivoMedico); And here is my persistence.xml http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" it.ariadne.orpt2.entities.AccessoriScheda it.ariadne.orpt2.entities.CampiSchede it.ariadne.orpt2.entities.CampiSchedeSalvati it.ariadne.orpt2.entities.CampoAggiuntivo it.ariadne.orpt2.entities.Categorie it.ariadne.orpt2.entities.CategorieCampi it.ariadne.orpt2.entities.CategorieCampiPK it.ariadne.orpt2.entities.ClasseCivab it.ariadne.orpt2.entities.DecodificaStato it.ariadne.orpt2.entities.DispositivoMedico it.ariadne.orpt2.entities.Ente it.ariadne.orpt2.entities.FormaNegoziazione it.ariadne.orpt2.entities.Fornitore it.ariadne.orpt2.entities.LogSession it.ariadne.orpt2.entities.Modello it.ariadne.orpt2.entities.Periodicita it.ariadne.orpt2.entities.Produttore it.ariadne.orpt2.entities.Ruolo it.ariadne.orpt2.entities.RuoloPK it.ariadne.orpt2.entities.RuoloUtente it.ariadne.orpt2.entities.Scheda it.ariadne.orpt2.entities.SchedaSalvata it.ariadne.orpt2.entities.Tipologia it.ariadne.orpt2.entities.Utente Thank you for your help. Mario

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  • questions about multi threading for sockets/tcp-connections.

    - by Fantastic Fourier
    I have a server that connects to multiple clients using TCP/IP connections, using C in Unix. Since it won't have more than 20 connections at a time, I figured I would use a thread per connection/socket. But the problem is writing to the sockets as I'll be sending user prompted msgs to clients. Once each socket is handled by a thread, how do I interact with the created thread to write to the sockets? Should each thread just read from the sockets and I'll write to sockets in the main program? Not sure if that's a good way to go about it.

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  • C# check age of db Item

    - by Jacob Huggart
    Hello All, I am using C# to send an email with an encrypted link. The encrypted portion of the link contains a time stamp that needs to be used to verify if the link is more than 48 hours old. How do I compare an old time to the current time and find out if the old time is more than 48 hours ago? This is what I have now: var hours = DateTime.Now.Ticks - data.DTM.Value.Ticks; //data.DTM = stored time stamp if (hours.CompareTo(48) > 1) //if link is more than 48 hours old, deny access. return View("LinkExpired"); } Comparing ticks seems like it's a very backwards way to do it and I know that the hours.CompareTo would have to be adjusted if I stick with comparing ticks. How can I just get a value for the number of hours that have passed?

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  • Multi:Threading - Is this the right approach?

    - by HonorGod
    Experts - I need some advice in the following scenario. I have a configuration file with a list of tasks. Each task can have zero, one or more dependencies. I wanted to execute these tasks in parallel [right now they are being executed sequentially] The idea is to have a main program to read the configuration file and load all the tasks. Read individual tasks and give it to an executor [callable] that will perform the task and return results in a Future. When the task is submitted to the executor (thread) it will monitor for its dependencies to finish first and perform its own task. Is this the right approach? Are there any other better approaches using java 1.5 features?

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  • HTML5 Web DB Security

    - by darrenc
    Hi all! I'm looking into an offline web app solution using HTML5. The functionality is everything I need BUT the data stored can be directly queried right in the browser and therefore completely unsecure! Is there anyway to encrypt/hide so that the data is secure? Thanks, D.

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  • Emulating HTTP POST via httpclient 3.x for multi options

    - by Frankie Ribery
    I want to emulate a HTTP POST using application/x-www-form-urlencoded encoding to send a option group that allows multiple selections. <select name="groups" multiple="multiple" size="4"> <option value="2">Administration</option> <option value="1">General</option> </select> Does adding 2 NameValuePairs (NVP) with the same name work ? My serverside log shows that only the first NVP was received. e.g PostMethod method = ...; NameValuePair[] nvpairs = { new NameValuePair( "groups", "2" ); new NameValuePair( "groups", "1" ); }; method.addParameter( nvpairs ); Only the groups=1 parameter was received. Thanks

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  • SQL Server DB metadata

    - by Lijo
    Hi Team, I am using SQL Server 2005. I have a requirement to list out all the tables (and the column) whcih has the value 'xyzeee'. Is there a query to achieve this? Thanks Lijo

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  • Using one sqlconnection/sqlcommand through 2 DB-bound methods

    - by dotnetdev
    I have a class with a method which gets data from a database through a SELECT stored proc. This method uses a SqlDbReader by returning ExecuteReader() on a SqlCommand. The connection and everything is made in this method, with fields (such as connection string) set as class level fields. I now need to populate an array based on the results of this query (so the columns of each row will go into the array with its own index). However, this query will not select all of the data from one table which is involved. I can write the queries to get what I need, but how can I use one connection throughout the class? If I instantiate the connection object and call Open() in the constructor, I get an exception @ runtime. I'm hoping for something like this: // At class level: sqlconn.Open(); // sqlcommand set up Method() { // Fire stored proc // Insert results in a collection } Method2() { // Pass same collection in (use same one), // Add new row columns into same collection } How can I do this with strict performance in mind? Thanks

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  • Asp.net mvc - trying to display images pulled from db \

    - by Trey Carroll
    //Inherits="System.Web.Mvc.ViewPage<FilmFestWeb.Models.ListVideosViewModel>" <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>ListVideos</h2> <% foreach(BusinessObjects.Video vid in Model.VideoList){%> <div class="videoBox"> <%= Html.Encode(vid.Name) %> <img src="<%= vid.ThumbnailImage %>" /> </div> <%} %> </asp:Content> //ListVideosViewModel public class ListVideosViewModel { public IList<Video> VideoList { get; set; } } //Video public class Video { public long VideoId { get; set; } public long TeamId { get; set; } public string Name { get; set; } public string Tags { get; set; } public string TeamMembers { get; set; } public string TranscriptFileName { get; set; } public string VideoFileName { get; set; } public int TotalNumRatings { get; set; } public int CumulativeTotalScore { get; set; } public string VideoUri { get; set; } public Image ThumbnailImage { get; set; } } I am getting the "red x" that I usually associate with image file not found. I have verified that my database table shows after the stored proc that uploads the image executes. Any insight or advice would be greatly appreciated.

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  • In VB.NET how do you specify Inherits/implements on a generic class with multi-constraints

    - by Romel Evans
    When I write the following statement in VB.Net (C# is my normal language), I get an "end of statement expected" referring to the "Implements" statement. <Serializable()> _ <XmlSchemaProvider("EtgSchema")> _ Public Class SerializeableEntity(Of T As {Class, ISerializable, New}) _ Implements IXmlSerializable, ISerializable ... End Class The C# version that I'm trying to emulate is: [Serializable] [XmlSchemaProvider("MySchema")] public class SerializableEntity<T> : IXmlSerializable, ISerializable where T : class, new() { .... } Sometimes I feel like I have 5 thumbs with VB.NET :)

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