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  • How to have Moose return a child class instance instead of its own class, for polymorphism

    - by alex8657
    I want to create a generic class, whose builder would not return an instance of this generic class, but an instance of a dedicated children class. As Moose does automatic object building, i do not get to understand if this something possible, and how to create a Moose class with Moose syntax and having this behaviour Eg: The user asks: $file = Repository-new(uri='sftp://blabla') .... and is returned an Repository::_Sftp instance User would use $file as if it is a Repository instance, without the need to know the real subclass (polymorphism)

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  • iPhone cocos2d CCTMXTiledMap tile transitions

    - by Jeff Johnson
    I am using cocos2d on the iPhone and am wondering if it is possible to use a texture mask in order to create tile transitions / fringe layer. For example, a grass tile and a dirt tile, I would want a tile that had both grass and dirt in it... Has anyone done this, or is the only way to create one tile for every possible transition?

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  • PHPExcel feature question

    - by AlexV
    I want to know if PHPExcel can: Create Excel spreadsheets with embeded image. The image must be compressed (jpeg, png, gif...). Create Excel spreadsheets for different Excel versions (2000, 2003, 2007...). I'm pretty sure it can do this but I can't find it in the official docs. Anyone familiar with this class can help? Thanks!

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  • Axis2 aar file structure question

    - by Alan Mangroo
    I trying to create an Axis2 arr file that has 2 package heirachies. However my service class is throwing a class not found exception when it tries to use classes in the utils package. Is it possible to do this in Axis? Any advice is very welcome. Below is an example of the structure I am trying to create (utils and org are both top level packages)... |- SampleService |-- META-INF |--- services.xml |-- utils |---MyUtils.class |-- org |---- apache |---- axis2 |----- axis2userguide |------ SampleService.class

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  • rails migration version number and new model object crazy id.

    - by fenec
    hello, i have this crazy label for each time i create a migration that use the time instead of a integer. it makes things very hard to switch between the version of the database that you want to use. i also have this crazy ID for each object that i create : How can set up rails to have easy version and id numbers. thank you

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  • Problems with $libdir on PostgreSQL

    - by Joe Germuska
    In short, my question is "why doesn't $libdir work on my PSQL installation." CREATE FUNCTION st_box2d_in(cstring) RETURNS box2d AS '$libdir/liblwgeom', 'BOX2DFLOAT4_in' LANGUAGE c IMMUTABLE STRICT; yields an error could not access file "$libdir/liblwgeom": No such file or directory while CREATE FUNCTION st_box2d_in(cstring) RETURNS box2d AS '/usr/local/pgsql/lib/liblwgeom', 'BOX2DFLOAT4_in' LANGUAGE c IMMUTABLE STRICT; works correctly. The output of % pg_config --pkglibdir /usr/local/pgsql/lib appears to be correct.

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  • How to mail to a particular email id using my gmail credentials from desktop application

    - by GG
    Hello all, I am just developing an a desktop application for Twitter, Buzz and facebook. Google Buzz has not released their whole api to post buzz, but today I came to know that to create a new Buzz just mail to [email protected] with subject as Buzz content you want to create. Now I got stuck that how to mail to [email protected] from my gmail id using destop application which I am developing. Is there any kind of google webservice or api is available to do the task? Thanks, GG

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  • Html / Email / Distribution list problem from a noob

    - by Hezeus
    I need to create a feature for a website that will allow a user to enter their email in order to receive a free promotion (which will be emailed immediately) and be added to an announcement list. I haven't done any web programming and am wondering where I should start? Should I just create a database and everytime an email is entered, add the email to the database, then when I want to send out an announcement just write a script that will send an email to every address? Thanks!

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  • Creating meaningful routes in wizard style ASP.NET MVC form

    - by R0MANARMY
    I apologize in advance for a long question, figured better have a bit more information than not enough. I'm working on an application with a fairly complex form (~100 fields on it). In order to make the UI a little more presentable the fields are organized into regions and split across multiple (~10) tabs (not unlike this, but each tab does a submit/redirect to next tab). This large input form can also be in one of 3 views (read only, editable, print friendly). The form represents a large domain object (let's call it Foo). I have a controller for said domain object (FooController). It makes sense to me to have the controller be responsible for all the CRUD related operations. Here are the problems I'm having trouble figuring out. Goals: I'd like to keep to conventions so that Foo/Create creates a new record Foo/Delete deletes a record Foo/Edit/{foo_id} takes you to the first tab of the form ...etc I'd like to be able to not repeat the data access code such that I can have Foo/Edit/{foo_id}/tab1 Foo/View/{foo_id}/tab1 Foo/Print/{foo_id}tab1 ...etc use the same data access code to get the data and just specify which view to use to render it. My current implementation has a massive FooController with Create, Delete, Tab1, Tab2, etc actions. Tab actions are split out into separate files for organization (using partial classes, which may or may not be abuse of partial classes). Problem I'm running into is how to organize my controller(s) and routes to make that happen. I have the default route {controller}/{action}/{id} Which handles goal 1 properly but doesn't quite play nice with goal 2. I tried to address goal 2 by defining extra routes like so: routes.MapRoute( "FooEdit", "Foo/Edit/{id}/{action}", new { controller = "Foo", action = "Tab1", mode = "Edit", id = (string)null } ); routes.MapRoute( "FooView", "Foo/View/{id}/{action}", new { controller = "Foo", action = "Tab1", mode = "View", id = (string)null } ); routes.MapRoute( "FooPrint", "Foo/Print/{id}/{action}", new { controller = "Foo", action = "Tab1", mode = "Print", id = (string)null } ); However defining these extra routes causes the Url.Action to generate routs like Foo/Edit/Create instead of Foo/Create. That leads me to believe I designed something very very wrong, but this is my first attempt an asp.net mvc project and I don't know any better. Any advice with this particular situation would be awesome, but feedback on design in similar projects is welcome.

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  • Tags/Documentation with SVN Project in Eclipse?

    - by Kevin
    I've searched around with this and haven't found any clear answers. I'm using Eclipse PDT. It seems that if I create a PHP Project, tags work (@todo, etc). However, if I create a project from SVN (still PHP based), tags don't work at all. Does anyone know how to make tags and doc generation work on a per project basis and still import projects from a SVN repo?

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  • Dataset to excel

    - by Ruben Monteiro
    Hi. I'm developing an application that as to export a dataset to excel, this dataset have 3 tables and the relation between them, I would like to export this to a single excel sheet where for each parent table there is a '+' sign that when expanded shows the child values related to it. To export a single table to excel I know how to do it, but to create this type of relation I have no idea how to do it, do I have to create a macro on the excel file?

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  • Add Checkbox column in flexigrid

    - by Ramji
    The issue about jquery flexigrid using php. unfortunately http://flexigrid.info site is down very often so managed to take some sample code from http://sanderkorvemaker.nl/test/flexigrid/ and worked based on that. The above sample code works now I need to create a grid with a column with checkboxes, So that I can click a couple of those checkboxes and click delete button it should get all the id in which the checkboxes are checked to and create a delete query and execute. Can anyone give me an example please Thanks in advance

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  • Mock static method Activator.CreateInstance to return a mock of another class

    - by Jeep87c
    I have this factory class and I want to test it correctly. Let's say I have an abstract class which have many child (inheritance). As you can see in my Factory class the method BuildChild, I want to be able to create an instance of a child class at Runtime. I must be able to create this instance during Runtime because the type won't be know before runtime. And, I can NOT use Unity for this project (if so, I would not ask how to achieve this). Here's my Factory class that I want to test: public class Factory { public AnAbstractClass BuildChild(Type childType, object parameter) { AnAbstractClass child = (AnAbstractClass) Activator.CreateInstance(childType); child.Initialize(parameter); return child; } } To test this, I want to find a way to Mock Activator.CreateInstance to return my own mocked object of a child class. How can I achieve this? Or maybe if you have a better way to do this without using Activator.CreateInstance (and Unity), I'm opened to it if it's easier to test and mock! I'm currently using Moq to create my mocks but since Activator.CreateInstance is a static method from a static class, I can't figure out how to do this (I already know that Moq can only create mock instances of objects). I took a look at Fakes from Microsoft but without success (I had some difficulties to understand how it works and to find some well explained examples). Please help me! EDIT: I need to mock Activator.CreateInstance because I want to force this method to return another mocked object. The correct thing I want is only to stub this method (not to mock it). So when I test BuildChild like this: [TestMethod] public void TestBuildChild() { var mockChildClass = new Mock(AChildClass); // TODO: Stub/Mock Activator.CreateInstance to return mockChildClass when called with "type" and "parameter" as follow. var type = typeof(AChildClass); var parameter = "A parameter"; var child = this._factory.BuildChild(type, parameters); } Activator.CreateInstance called with type and parameter will return my mocked object instead of creating a new instance of the real child class (not yet implemented).

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  • generate excel in java

    - by chetan
    I want to generate excel with enabling auto-filter option.For that I have create one template excel file by enabling auto-filter option but when I write something into that template excel file auto-filter option disabled again. Is there any solution to create excel file by enabling auto-filter option.

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  • T-SQL - Left Outer Joins - Filters in the where clause versus the on clause.

    - by Greg Potter
    I am trying to compare two tables to find rows in each table that is not in the other. Table 1 has a groupby column to create 2 sets of data within table one. groupby number ----------- ----------- 1 1 1 2 2 1 2 2 2 4 Table 2 has only one column. number ----------- 1 3 4 So Table 1 has the values 1,2,4 in group 2 and Table 2 has the values 1,3,4. I expect the following result when joining for Group 2: `Table 1 LEFT OUTER Join Table 2` T1_Groupby T1_Number T2_Number ----------- ----------- ----------- 2 2 NULL `Table 2 LEFT OUTER Join Table 1` T1_Groupby T1_Number T2_Number ----------- ----------- ----------- NULL NULL 3 The only way I can get this to work is if I put a where clause for the first join: PRINT 'Table 1 LEFT OUTER Join Table 2, with WHERE clause' select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table1 LEFT OUTER join table2 --****************************** on table1.number = table2.number --****************************** WHERE table1.groupby = 2 AND table2.number IS NULL and a filter in the ON for the second: PRINT 'Table 2 LEFT OUTER Join Table 1, with ON clause' select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table2 LEFT OUTER join table1 --****************************** on table2.number = table1.number AND table1.groupby = 2 --****************************** WHERE table1.number IS NULL Can anyone come up with a way of not using the filter in the on clause but in the where clause? The context of this is I have a staging area in a database and I want to identify new records and records that have been deleted. The groupby field is the equivalent of a batchid for an extract and I am comparing the latest extract in a temp table to a the batch from yesterday stored in a partioneds table, which also has all the previously extracted batches as well. Code to create table 1 and 2: create table table1 (number int, groupby int) create table table2 (number int) insert into table1 (number, groupby) values (1, 1) insert into table1 (number, groupby) values (2, 1) insert into table1 (number, groupby) values (1, 2) insert into table2 (number) values (1) insert into table1 (number, groupby) values (2, 2) insert into table2 (number) values (3) insert into table1 (number, groupby) values (4, 2) insert into table2 (number) values (4) EDIT: A bit more context - depending on where I put the filter I different results. As stated above the where clause gives me the correct result in one state and the ON in the other. I am looking for a consistent way of doing this. Where - select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table1 LEFT OUTER join table2 --****************************** on table1.number = table2.number --****************************** WHERE table1.groupby = 2 AND table2.number IS NULL Result: T1_Groupby T1_Number T2_Number ----------- ----------- ----------- 2 2 NULL On - select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table1 LEFT OUTER join table2 --****************************** on table1.number = table2.number AND table1.groupby = 2 --****************************** WHERE table2.number IS NULL Result: T1_Groupby T1_Number T2_Number ----------- ----------- ----------- 1 1 NULL 2 2 NULL 1 2 NULL Where (table 2 this time) - select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table2 LEFT OUTER join table1 --****************************** on table2.number = table1.number AND table1.groupby = 2 --****************************** WHERE table1.number IS NULL Result: T1_Groupby T1_Number T2_Number ----------- ----------- ----------- NULL NULL 3 On - select table1.groupby as [T1_Groupby], table1.number as [T1_Number], table2.number as [T2_Number] from table2 LEFT OUTER join table1 --****************************** on table2.number = table1.number --****************************** WHERE table1.number IS NULL AND table1.groupby = 2 Result: T1_Groupby T1_Number T2_Number ----------- ----------- ----------- (0) rows returned

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  • using jquery as an alternative to css nth child

    - by JCHASE11
    Hi. I am using the following css to create list items with a chckerboard background ( every other list item has a grey background, which shift every row to create a checkerboard pattern: li:nth-child(8n+2), li:nth-child(8n+4), li:nth-child(8n+5), li:nth-child(8n+7) { background-color:grey; } Is there way I can do this using jquery that is more supportive than css3? Thanks

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  • SQLite is the CASE statement expensive?

    - by galford13x
    I'm wondering if using a CASE statement in SQLite (or other SQL engines) to replace data is not advised. For example lets say I have a query. SELECT Users, CASE WHEN Active = 0 THEN 'Inactive' WHEN Active = 1 THEN 'Active' WHEN Active = 2 THEN 'Processing' ELSE 'ERROR' AS Active FROM UsersTable; When is it better to create a reference table and perform a JOIN. In this case I would create a Table 'ActiveStatesTable' with ActiveID, ActiveDescription and perform the JOIN.

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  • Reopen error in bdb 4.7 memory

    - by user207634
    I create a memory pool with flag(DB_CREATE) after ope a Db_Env with flag(DB_CREATE | DB_INIT_MPOOL |DB_SYSTEM_MEM), when I run their program at first time, it's ok and create some db files such _db.001,_db.002,mpool, but after I close the program and run it again,their make a error said the system cannot find the specified file("Mpool: PANIC:No such file or directory"), if I delete all files in the memory pool folder and run it again it will be ok? How can I fix this problem?

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  • VS2008 VB project - Changing application type automatically adds references

    - by Stijn
    Visual Basic Create a new project with the Empty Project template (Visual Basic - Windows) Go to the project properties, and change the Application type by choosing something else or reselecting Windows Forms Application. When reselecting, Visual Studio will automatically add references to System.Deployment, System.Drawing and System.Windows.Forms C# Create a new project with the Empty Project template (Visual C# - Windows) Go to the project properties, and change the Application type to any of the choices. Visual studio will not add references. Question Is there a way to change this behaviour for Visual Basic?

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  • Unable to use IIS7 with Visual Studio 2010, MVC2.0 and NET4

    - by nachid
    Here is my environment Windows7, Visual Studio 2010, MVC2.0 and NET4 My default web site is configured to use ASP.NET v4.0 application pool. Here is an easy way to reproduce my problem Create a new MVC2 application Open the properties Window Go to the Web tab Check "Use IIS Local Web Server" Click on "Create Virtual Directory" button I get this error message To access local IIS Web Sites, you must install the following IIS components: In addition, you must run visual Studio in the context of an Administrator account For more information, press F1 Notice the blank line after "...the following IIS components:" I am running VS2010 as administrator Pressing F1 does not bring any help

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