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• Using terminal to record/save a data stream

  - by jonhurlock

  I want to be able to save a data stream which i am returning using the curl command. I have tried using the cat command, and piping it the curl command, however i'm doing it wrong. The code im currently using is: cat > file.txt | curl http://datastream.com/data Any help would be appreciated.

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• How can I manually interpolate string escapes in a Perl string?

  - by Ryan Thompson

  In perl suppose I have a string like 'hello\tworld\n', and what I want is: 'hello world ' That is, "hello", then a literal tab character, then "world", then a literal newline. Or equivalently, "hello\tworld\n" (note the double quotes). In other words, is there a function for taking a string with escape sequences and returning an equivalent string with all the escape sequences interpolated?

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• How to approximate double ?

  - by Andrei Ciobanu

  How to I write a function that approximates a double in the following manner, returning an int: function (2.3) -> 2 function (2.7) -> 3 function (-1.2) -> -1 function (-1.7) -> -2

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• JSONResult to String

  - by Dustin Laine

  I have a JsonResult that is working fine, and returning JSON from some POCO's. I want to save the JSON as a string in a DB. public JsonResult GetJSON() { JsonResult json = new JsonResult { Data = GetSomPocos() }; return json; } I need to audit the response, so I want to save the json into a DB. I am having trouble finding a way to get the JSON as a string. Any help is appreciated.

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• Best way to get a Web Service to return a database result as XML?

  - by John

  I am building a webservice using jax-rs and querying a DB2 z/OS database with SQLJ and getting the result set as an arraylist. I would like to return this list as XML, but not sure how to do it. Does anyone have an example of returning a result set as XML and is using an Arraylist the best way to do this? Should I use JAXB? if so how?

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• What exception to throw when an important parameter/dependency is missing?

  - by Pentium10

  Take this method public List<String> getGroups() { if (this.getId().equals("")) return null; } I would like to throw exception instead returning null, what's the exception to throw when an important parameter/dependency has not been set?

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• why can't a std::vector take a local type?

  - by anon

  void foo() { struct Foo { .. }; std::vector<foo> vec; // why is this illegal? } I'm not returning foo to the outside world. It's just a temporary type that I use within the function.

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• Is HTTP 404 appropriate for out of range page number on paged content?

  - by WooYek

  I have a site that is mainly showing a paged list of content (articles, data element's, etc.), and I'm wondering about returning HTTP 404 when user navigates outside of the available list range. Some sites just display "No results/Page number out of range" and some return additionally return HTTP 404 status. What's your take on that, and why? UPDATE It's not and api response. This question is in regard to user viewed pages that among other things show a list/table in the main area.

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• How do I return the first string variable that isn't null or emtpy

  - by RandomBen

  If I have 5 String variables and between 0 and 5 of them are null or empty is there an easy/short way of returning the first one that is not null or empty? I am using .NET 3.5

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• Nginx: check content-length before file upload takes place

  - by robw

  I'm trying to prevent users from uploading (accidentally or maliciously) very large files to my website. I have nginx max_client_body_size set to 4M, but if a file larger than this is uploaded, then it uploads the entire file before returning 413 (entity too large). I want to make nginx check the Content-Length header, so that it rejects the request before it's uploaded. Alternatively, a Rails solution would also be acceptable. Any help appreciated.

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• How to use Spanish characters in Handlebars templates

  - by Jon Rose

  I am wondering what the idiomatic way to render special language characters is using Handlebars.js templates. When I render the normal html I can use something like the Spanish lowercase e, &#233, and it renders as expected. When I pass the same text as a string to my Handlebars template I just see the characters &#233. I have tried creating a Handlebars helper that used jquery to render the text using .html() then returning the .html() of the tmp element and I get the same results.

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• How do I check if a Linq to SQL entity has grandchildren?

  - by EdenMachine

  How can I find out if a Linq to SQL entity has grandchildren or not? Pseudo-code below: Return From p In dc.Processes Where p.Signers.Count > 0 and p.Signers.Signatures.Count > 0 Obviously I can't run the code above but I need to make sure that all the returning Processes have at least one Signer and that all of those Signers have at least one Signature. TIA!

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• Displaying Data on the Form with C#

  - by The.Anti.9

  I'm searching files and returning lines that include the search text, and I'm not really sure the best way to display the information I get. Every time I get a match, I want to show, in some sort of control, the File it came from, and the whole text line. (aka streamreader.ReadLine() result). First I tried just putting it all in a read-only text box, but it doesn't have a scroll bar. What is the best form control to help me display this data neatly?

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• Return value from query statement - jQuery

  - by dave

  Hello, I have a ajax, jquery form which works fine, but returning a message from <div></div>. I want to return a value from a db query, a single value. How do I go about doing it. Thanks Dave

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• java api design - NULL or Exception

  - by srini.venigalla

  Is it better to return a null value or throw an exception from an API method? Returning a null requires ugly null checks all over, and cause a major quality problem if the return is not checked. Throwing an exception forces the user to code for the faulty condition, but since Java exceptions bubble up and force the caller code to handle them, in general, using custom exceptions may be a bad idea (specifically in java). Any sound and practical advice?

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• RESTful resource not found. 404 or 204? Jersey returns 204 on null being returned from handler.

  - by jr

  If you are looking for /Resource/Id and that resource does not exist, I had always though that 404 was the appropriate response. However, when returning "null" from a Jersey handler, I get back a "204 No Content". I can likely work with either one, but am curious to others thoughts on this. To answer my own next question. To get jersey to return 404 you must throw an exception. if (a == null) throw new WebApplicationException(404);

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• Struts:JSON:return multiple objects

  - by cp

  Hello Is it possible to return multiple JSON objects in the request header with Struts1? I am presently returning a single JSON objects, however the need now is to return a second data structure. All the client-side processing works perfectly for the single data structure in the single JSON objects, I really do not want to complicate it by putting two hetrogenous data structures in a single return JSON object. tia.

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• Question about JSON?

  - by Alex

  Hi all, I have a fairly simple question: In Javascript how can I return the boolean (if its found in the JSON) rather than the actual value? Example: var myJSON = { "foo" : "bar", "bar" : "foo" }; var keyToLookFor = "foo"; var found = myJSON[keyToLookFor]; if (found) { // I know I can test if the string exists in the if } // but is there a way I could just return something like: return found; // instead of testing found in the if statement and then returning true?

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• Best way to return result from business layer to presentation layer when using LINQ-to-SQL

  - by samsur

  I have a business layer that has DTOs that are used in the presentation layer. This application uses entity framework. Here is an example of a class called RoleDTO: public class RoleDTO { public Guid RoleId { get; set; } public string RoleName { get; set; } public string RoleDescription { get; set; } public int? OrganizationId { get; set; } } In the BLL I want to have a method that returns a list of DTO. I would like to know which is the better approach: returning IQueryable or list of DTOs. Although I feel that returning IQueryable is not a good idea because the connection needs to be open. Here are the 2 different methods using the different approaches: First approach public class RoleBLL { private servicedeskEntities sde; public RoleBLL() { sde = new servicedeskEntities(); } public IQueryable<RoleDTO> GetAllRoles() { IQueryable<RoleDTO> role = from r in sde.Roles select new RoleDTO() { RoleId = r.RoleID, RoleName = r.RoleName, RoleDescription = r.RoleDescription, OrganizationId = r.OrganizationId }; return role; } Note: in the above method the DataContext is a private attribute and set in the constructor, so that the connection stays opened. Second approach public static List<RoleDTO> GetAllRoles() { List<RoleDTO> roleDTO = new List<RoleDTO>(); using (servicedeskEntities sde = new servicedeskEntities()) { var roles = from pri in sde.Roles select new { pri.RoleID, pri.RoleName, pri.RoleDescription }; //Add the role entites to the DTO list and return. This is necessary as anonymous types can be returned acrosss methods foreach (var item in roles) { RoleDTO roleItem = new RoleDTO(); roleItem.RoleId = item.RoleID; roleItem.RoleDescription = item.RoleDescription; roleItem.RoleName = item.RoleName; roleDTO.Add(roleItem); } return roleDTO; } } Please let me know, if there is a better approach.

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• Simple jquery console log

  - by Kevin Brown

  I'm trying to log the change of a value in the console (Firefox/Firefly, mac). if(count < 1000) { count = count+1; console.log(count); setTimeout("startProgress", 1000); } This is only returning the value 1. It stops after that. Am I doing something wrong or is there something else affecting this?

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• Can i return a value instead of a view from my controller?

  - by Flexo

  I would like to return the id of a newly created object for my ajax call instead of returning the view associated with the controller method.

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• Stored procedure with output parameters vs. table-valued function?

  - by abatishchev

  Which approach is better to use if I need a member (sp or func) returning 2 parameters: CREATE PROCEDURE Test @in INT, @outID INT OUT, @amount DECIMAL OUT AS BEGIN ... END or CREATE FUNCTION Test ( @in INT ) RETURNS @ret TABLE (outID INT, amount DECIMAL) AS BEGIN ... END What are pros and cons of each approach considering that the result will passed to another stored procedure: EXEC Foobar @outID, @outAmount

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• How to handle when SSRS does not automatically update fields based on database query?

  - by badpanda

  So I am trying to change the number of fields in my dataset in SSRS and the refresh button is not picking up the added field from the SQL server. The query is definitely returning the correct data, as I have double checked in the server engine itself. Also, I have tried manually adding the field using the SSRS menu, but as soon as I execute it disappears. Any suggestions or similar experiences?

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• How Can i Populate Bulk of Data from a DB Table into a Combo Box? - C#.NET

  - by peace

  MenuItem menus = new MenuItem(); GridView1.DataSource = menus.GetDataTable(); GridView1.DataBind(); menus.GetDataTable() returns a DataTable. In the above case, we are returning to GridView. I need to populate the data into a combo box. How can i do it? NOTE: Assume GetDataTable only returns records of a single column.

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• Does variable = null set it for garbage collection

  - by manyxcxi

  Help me settle a dispute with a coworker: Does setting a variable or collection to null in Java aid in garbage collection and reducing memory usage? If I have a long running program and each function may be iteratively called (potentially thousands of times): Does setting all the variables in it to null before returning a value to the parent function help reduce heap size/memory usage?

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