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  • Getting the Image Source from an HTMLImageElement object

    - by corymathews
    I have the following jQuery which I want to output a list of images. The problem is that I cannot get 'this' to find the source. It currently is an object which outputs as an HTMLImageElement. How can I get the image source from this object? $("#imgs li.images img").each(function(i) { $("#list").append("<li><img src=\""+this.attr("src")+"\" /></li>"); }); I currently get the error that this.attr is not a function.

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  • jQuery ajax() returning json object to another function on success causes error

    - by Michael Mao
    Hi all: I got stuck in this problem for an hour. I am thinking this is something relates to variable scoping ? Anyway, here is the code : function loadRoutes(from_city) { $.ajax( { url: './ajax/loadRoutes.php', async : true, cache : false, timeout : 10000, type : "POST", dataType: 'json', data : { "from_city" : from_city }, error : function(data) { console.log('error occured when trying to load routes'); }, success : function(data) { console.log('routes loaded successfully.'); $('#upperright').html(""); //reset upperright box to display nothing. return data; //this line ruins all //this section works just fine. $.each(data.feedback, function(i, route) { console.log("route no. :" + i + " to_city : " + route.to_city + " price :" + route.price); doSomethingHere(i); }); } }); } The for each section works just fine inside the success callback region. I can see Firebug console outputs the route ids with no problem at all. For decoupling purpose, I reckon it would be better to just return the data object, which in JSON format, to a variable in the caller function, like this: //ajax load function function findFromCity(continent, x, y) { console.log("clicked on " + continent + ' ' + x + ',' + y); $.ajax( { url: './ajax/findFromCity.php', async : true, cache : false, timeout : 10000, type : "POST", dataType : 'json', data : { "continent" : continent, "x" : x, "y" : y }, error : function(data) { console.log('error occured when trying to find the from city'); }, success : function(data) { var cityname = data.from_city; //only query database if cityname was found if(cityname != 'undefined' && cityname != 'nowhere') { console.log('from city found : ' + cityname); data = loadRoutes(cityname); console.log(data); } } }); } Then all of a sudden, everything stops working! Firebug console reports data object as "undefined"... hasn't that being assigned by the returning object from the method loadRoutes(cityname)? Sorry my overall knowledge on javascript is quite limited, so now I am just like a "copycat" to work on my code in an amateur way.

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  • Python Tkinter - Edit external object within event handler?

    - by M3RPHY
    Hey all, As the title says, I'm grabbing the cursor location within a motion triggered event handler in Tkinter. I'd like to update an existing label widget with the location, however I cannot for the life of me figure out how to edit the label's text field (or any external object for that matter) within the event handler. From what I understand, event is the only argument passed to the handler, which means I can't pass the label object. How do I access objects outside of the handler? Apologize for the noobish question as I'm a C programmer new to Python. Thanks!

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  • How to migrate data from a Firebird database to PostGreSQL on Linux

    - by Tom Feiner
    Are there any good tools to migrate existing firebird databases to PostgreSQL for Linux systems? I've looked at: FBexport which can be used to dump the data as insert statements, but it's mainly written to export/import from one firebird db to another, not as a migration tool. There's also: Firebird to PostgreSQL Win32 tool, but it's only for win32 systems. Is there any good tool to do this? Or should I just roll my own?

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  • Designing a data model in VS2010 and generating ORM code, application

    - by Kay Zed
    Simply put: I have a database design in my head and I now want to use Visual Studio 2010 to create a WPF application. Key is to use the VS2010 tools to take much as possible manual work out of my hands. -The database engine is SQLite -ORM probably through DBLINQ -Use of LINQ -The application can create new, empty database instances -Easily maintainable (changes in data model possible) Q- How do I start designing the database model (visually) in Visual Studio 2010? Should this be an xsd? Do I do this in a separate project? Q- Next, how can I make the most use of VS2010 code generation tools to generate a business layer? Q- I suppose the business layer will be added as a Data Source (in another project?) and from there it's a rather generic data binding solution? I tried finding clear examples of this but it's a jungle out there, the hunt for a solution is NOT converging to one clear method.... :_(

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  • An Object reference is required for the non-static field

    - by Muhammad Akhtar
    I have make my existing method to static method to get access in javascript, like.. [WebMethod(EnableSession = true), ScriptMethod()] public static void Build(String ID) { Control releaseControl = LoadControl("~/Controls/MyControl.ascx"); //An Object reference is required for the non-static field, mthod or property // 'System.Web.UI.TemplateControl.LoadControl(string)' plc.Controls.Add(releaseControl); // where plc is place holder control //object reference is required for the nonstatic field, method, or property '_Default.pl' } When I build I am getting error and I have posted these in comments below each line before converted it to static method, it working perfectly. Please suggest me the solution of my issue. Thanks

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  • [RESTful] Calculation with RESTful web service with MySQL database : )

    - by Dobby
    Dears, I am now making some RESTful web service with MySQL database. I used NetBeans to create the resources of RESTful service with MySQL, and now I can now using GET and POST/PUT to list and add/modify data entities in the MySQL server. Currently, I wish to make some calculations right after a client makes the POST activities, then the posted data with calculated results will be inserted into the MySQL database. I am very new to this, I guess I need to add some functions and call them to calculate but I don't know where and how to do that : ( Could any one help me on this issue? Thanks a lot in advance! : ) Best! Dobby

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  • Get the currently saved object in a view in Django

    - by mridang
    Hi, I has a Django view which is accessed through an AJAX call. It's a pretty simple one — all it does is simply pass the request to a form object and save the data. Here's a snippet from my view: form = AddSiteForm(request.user, request.POST) if form.is_valid(): obj = form.save(commit=False) obj.user = request.user obj.save() data['status'] = 'success' data['html'] = render_to_string('site.html', locals(), context_instance=RequestContext(request)) return HttpResponse(simplejson.dumps(data), mimetype='application/json') How do I get the currently saved object (including the internally generated id column) and pass it to the template? Any help guys? Mridang

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  • Visual Studio 2010 and discovery of advantage server error

    - by Tina Nipe
    I installed VS 2010 on a Windows 7 64 bit machine. When I try and connect to an advantage database through the server explorer using the Advanatage OLEDB driver I get a cannot discover advantage database server error. I can connect to the database using the ARC just fine. I was able to connect in VS 2008 just fine. Any ideas on why I can't connect in VS 2010?

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  • D3.js binding an object to data and appending for each key

    - by frshca
    I'm a D3.js newbie and I'm learning how to play around with data. Let's say I have an object with names as keys, and each key has an array of numbers like this: var userdata = { 'John' : [0, 1, 3, 9, 8, 7], 'Harry': [0, 10, 7, 1, 1, 11], 'Steve': [3, 1, 4, 4, 4, 17], 'Adam' : [4, 77, 2, 13, 11, 13] }; For each user, I would like to append an SVG object and then plot the line with the array of values for that user. So here is my assumption of how that would look based on tutorials, but I know it is incorrect. This is to show my limited knowledge and give better understanding of what I'm doing: First I should create the line var line = d3.svg.line().interpolate('basis'); Then I want to bind the data to my body and append an svg element for each key: d3.select('body') .selectAll('svg') .data(userdata) .enter() .append('svg') .append(line) .x(function(d, i) { return i; }) .y(function(d) { return d[i]; }); So am I close??

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  • Can I use imp/exp tools to migrate database from Oracle 9 to Oracle 10

    - by Karol Kolenda
    I'm subcontractor and my client wants to upgrade Oracle database from 9 to 10. Other vendor is going to perform the upgrade process, and I was asked to create whatever backup I need before the upgrade, and then recreate the environment in Oracle 10. All my data is stored in a separate database in a single schema. No fancy relations, scripts or anything like this (actual app supports different dbs: Oracle, SQL Server, Postgres so we want to avoid any DB-specific code). I was hoping to use imp/exp but I'm not sure if imp/exp are backward compatible (exp from O9 and imp to O10)? If there is a better/recommended way of dealing with similar situation, I'll be grateful for any advice.

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  • Datamining on a mysql database

    - by sliptix
    Hello, I Begin with textmining. I have two database tables with thousands of data.. a table for "skills" and a table for "skills categories" every "skill" belongs to a skills categorie. a "skill" is , physicaly, a varchar(200) field in the database, where there is some text describing the skill. Here are some skills extracted from the skills table: "PHP (good level), Java (intermediaite), C++" "PHP5" "project management and quality management" "begining Javascript" "water engineering" "dfsdf zerze rzer" "cibling customers" what i want to do is to extract knowledge from those fields, i mean extract only the real skill and ignore the rest of useless text. for the above example i want to get only an array with: "PHP" "Java" "C++" "PHP5" "project management" "quality management" "Javascript" "water engineering" "cibling customers" what should i do to extract the skills from tons of data please ? do you know specific algorithms to do this ? ex : k-means ... ? Thanks in advance.

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  • Deserialization of JSON object by using DataContractJsonSerializer in C#

    - by user2539667
    enter code hereI'm sure this question has been asked over and over again, but for some reason, I still can't manage to get this to work. I want to deserialize a JSON object that contains a single member; a string array: [{"idTercero":"cod_Tercero"}] This is the class that I'm trying to deserialize into: [DataContract] public class rptaOk { [DataMember] public string idTercero { get; set; } public rptaOk() { } public rptaOk(string idTercero) { this.idTercero = idTercero; } } This is the method that I try to deserialize: public T Deserialise<T>(string json) { DataContractJsonSerializer deserializer = new DataContractJsonSerializer(typeof(T)); using (MemoryStream stream = new MemoryStream(Encoding.Unicode.GetBytes(json))) { T result = (T)deserializer.ReadObject(stream); return result; } } And so try to fill the object: rptaOk deserializedRpta = deserializarOk(rpta); But for some reason, this returns "" MessageBox.Show(deserializedRpta.idTercero);

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  • curl object moved here error, bash

    - by adam n
    I'm trying to download an html file with curl in bash. When I download it manually, it works fine. However, when i try and run my script through crontab, the output html file is very small and just says "Object moved to here." with a broken link. Does this have something to do with the sparse environment the crontab commands run it? I found this question: http://stackoverflow.com/questions/1279340/php-ssl-curl-object-moved-error but i'm using bash, not php. What are the equivalent command line options or variables to set to fix this problem in bash? (I want to do this with curl, not wget)

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  • How to check if object is sql to linq type

    - by remdao
    Hi, anyone know if there's any easy way to check if an object is an sql to ling type? I have a method like this but would like it to only accept valid types. public static void Update(params object[] items) { using (TheDataContext dc = new TheDataContext()) { System.Data.Linq.ITable table; if(items.Length > 0) table = dc.GetTable(items[0].GetType()); for (int i = 0; i < items.Length; i++) { table.Attach(items[i]); dc.Refresh(System.Data.Linq.RefreshMode.KeepCurrentValues, items[i]); } dc.SubmitChanges(); } }

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  • MYSQL backup and restore

    - by Codezy
    I am having trouble getting mysql backups to run properly when their are views in the database. I think this might have something to do with needing a placeholder object for it. In any event I run this command: mysqldump -u myuser -pmypassword mydatabase | mysql -u myuser -pmypassword -C mydatabase_Beta The user has full privileges and I get this: View mydatabase_beta.yadayada references invalid tables or columns or functions or definer/invoker or view lack rights to use them. How can I back it up so that it restores all of my database properly? In the example I am restoring it to a different name but I do need to be able to restore a working copy. I think it is probably an additional mysqldump parameter or maybe hot copy would work better. Thoughts?

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  • Overhead of Perfmon -> direct to SQL Database

    - by StuartC
    HI All, First up, I'm a total newb at Performance Monitoring. I'm looking to set up central performance monitoring of some boxes. 2K3 TS ( Monitor General OS Perf & Session Specific Counters ) 2K8 R2 ( XenApp 6 = Monitor General OS Perf & Session Specific Counters ) File Server ( Standard File I/O ) My ultimate aim is to get as many counters/information, without impacting the clients session experience at all. Including counters specific to their sessions. I was thinking it logging directly to a SQL on another server, instead of a two part process of blg file then relog to sql. Would that work ok? Does anyone know the overhead of going straight to SQL from the client? I've searched around a bit, but havent found so much information it can be overwhelming. thanks

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  • log shipping of biztalk database on SQL server 2008 standard edition

    - by Manjot
    Hi, I want to do log shipping for biztalk databases on SQL server 2008 standard edition (server A) to another SQL server 2008 standard edition (server B). I was told that for biztalk, logshipping is not like standard logshipping. I was able to find 2 links: http://msdn.microsoft.com/en-us/library/cc296836%28v=BTS.10%29.aspx http://msdn.microsoft.com/en-us/library/cc296741%28v=BTS.10%29.aspx but they are not talking about SQL 2008 servers. Can anyone please help in this? Thanks in advance

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  • Modify an object without using it as parameter

    - by Claire Huang
    I have a global object "X" and a class "A". I need a function F in A which have the ability to modify the content of X. For some reason, X cannot be a data member of A (but A can contain some member Y as reference of X), and also, F cannot have any parameter, so I cannot pass X as an parameter into F. (Here A is an dialog and F is a slot without any parameter, such as accept() ) How can I modify X within F if I cannot pass X into it? Is there any way to let A know that "X" is the object it need to modify?? I try to add something such as SetItem to specify X in A, but failed.

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  • LD_LIBRARY_PATH : how to find a shared object

    - by CuriousDawg
    I have a shared object ( libxyz.so ). Given LD_LIBRARY_PATH, how can find the exact location of this shared object? If i had a binary that depends on this lib, i would have used ldd on that. Here is the reason why i ask: I have a cgi script which works when using LD_LIBRARY_PATH set to say VALUE1. It does not work when the path is set to VALUE2. I would like to find the exact location of the library as specified by the path in VALUE1 ( Note that VALUE1 has almost 20+ different locations ) Platform: Linux

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  • Kohana v3 ACL A2 with database support

    - by Asif
    Hi, I am using Kohana V 3.0.3. I was looking for ACL library and found from http://dev.kohanaphp.com/projects A2 Kohana's ACL module. Apparently it's found that, it manages Roles,Resources and Rules using config file and authenticate object basis. I want it to be dynamic, like Resources and Rules should be loaded from database dynamically if valid user logs in. Auth part is done now looking for ACL part. Is it possible to use same A2 module with database or need to rewrite own logic?

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  • C#: Object reference not set to an instance of an object.

    - by Vinzcent
    Hey, I get the following error: Object reference not set to an instance of an object This is my C Sharp code: DataTable tableAcces = dsAcces.Tables["dsPrinterAcces"]; DataTable tableMDF = dsAcces.Tables["dsPrinterMDF"]; DataRow newrow = null; foreach(DataRow dr in tableAcces.Rows) { newrow = tableMDF.NewRow(); newrow["PRINTER_ID"] = dr["PRINTER_ID"]; newrow["MERK"] = dr["MERK"]; newrow["MODEL"] = dr["MODEL"]; newrow["LOKAAL_ID"] = dr["LOKAAL_ID"]; tableMDF.Rows.Add(newrow); } daMDF.Update(dsMDF, "dsPrinterMDF"); lblSucces.Text = "Gelukt. De tabel printers is overgezet."; } In this line, he throws the error: newrow = tableMDF.NewRow(); Thanks a lot, Vincent

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