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• Process a batch of items, return an object to report on status

  - by Naeem Sarfraz

  I'm looking for a pattern (or good practice) for the following scenario: My function List<BatchItemResponse> Process(List<BatchItem> Data) {..} will process a list of data, and return info on where each item in the batch could be processed. struct BatchItemResponse { int BatchItemID; bool Processed; string Description; } Any thoughts? Is what I've proposed as good as it gets?

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• can't open file which download with php code

  - by user304828

  header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($file)); header('Content-Transfer-Encoding: binary'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('Content-Length: ' . filesize($file)); ob_clean(); flush(); readfile($file); i downloaded file but can't open file ? why ?

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• How to handle right to left languages in Flash (pre version 10)?

  - by Maan Ashgar

  Hello, We are currently working with Flex creating a web application. We are having trouble taking Arabic text from the user and displaying correctly (like in a chat feature). While presumably Flash 10 will solve this problem, we don't want to force our users to upgrade. Flash flips the order of the sentence's words. so if I wrote something like "Hello World" in the text field, it will appear as "World Hello" in the chat area. Is there a standard way to work with Right to Left languages in Flash? *We currently flip the order of the words with a function, but it things get messed up when using English or special characters in the chat like :) or :D *

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• Drag and drop an image from desktop to a web text editor (implementation in javascript)

  - by fatmatto

  I tried to write reasonably short title but i failed i guess.. Hi everybody here's what i'm trying to do: I want to implement a web text editor able to recognize when the user drag a image file over it's editing surface and it automa(gically) starts the upload and insert the image near the cursor position. In other words i don't want the user to do the usual "insert-image-browse-ok". Atm i am not very good at javascript ... i know JQuery but i have not a clear idea about how to implement this... i don't know if there's an event handler able to help me in this situation... if not then there should be i think or web apps would miss some kind of interactivity. I've heard miracles about HTML5 could it help me? I've seen such things in Google Wave but that surface doesn't seem to be a form field... google lab's black magic i guess.... Thank you in advance.

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• C# listbox,params

  - by Oyeme

  As Andrew Hare suggested in his answer: Create a field to store all the ListBox instances and then change the constructor to accept an arbitrary number of them: by I tried the following class scaner { readonly IEnumerable<ListBox> listBoxes; public IEnumerable<ListBox> ListBoxes { get { return this.listBoxes; } } public scaner(params ListBox[] listBoxes) { this.listBoxes = listBoxes; } } This will allow you to do this: scaner Comp = new scaner(listBox1, listBox2); How can i access listbox1? In class scaner i'm trying to call this.listBoxes. (I need to call the listbox1 in scaner class.How can i do/call it? Thanks for answers.

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• Optional attribute values in MappedField

  - by David Brooks

  I'm new to Scala and Lift, coming from a slightly odd background in PLT Scheme. I've done a quick search on this topic and found lots of questions but no answers. I'm probably looking in the wrong place. I've been working my way through tutorials on using Mapper to create database-backed objects, and I've hit a stumbling block: what types should be used to stored optional attribute values. For example, a simple ToDo object might comprise a title and an optional deadline (e.g. http://rememberthemilk.com). The former would be a MappedString, but the latter could not be a MappedDateTime since the type constraints on the field require, say, defaultValue to return a Date (rather than a Date or null/false/???). Is an underlying NULL handled by the MappedField subclasses? Or are there optional equivalents to things like MappedInt, MappedString, MappedDateTime that allow the value to be NULL in the database? Or am I approaching this in the wrong way?

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• Working with foreign keys - cannot insert

  - by Industrial

  Hi everyone! Doing my first tryouts with foreign keys in a mySQL database and are trying to do a insert, that fails for this reason: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails Does this mean that foreign keys restrict INSERTS as well as DELETES and/or UPDATES on each table that is enforced with foreign keys relations? Thanks! Updated description: Products ---------------------------- id | type ---------------------------- 0 | 0 1 | 3 ProductsToCategories ---------------------------- productid | categoryid ---------------------------- 0 | 0 1 | 1 Product table has following structure CREATE TABLE IF NOT EXISTS `alpha`.`products` ( `id` MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT , `type` TINYINT(2) UNSIGNED NOT NULL DEFAULT 0 , PRIMARY KEY (`id`) , CONSTRAINT `prodsku` FOREIGN KEY (`id` ) REFERENCES `alpha`.`productsToSku` (`product` ) ON DELETE CASCADE, ON UPDATE CASCADE) ENGINE = InnoDB;

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• Creating an Order Column for encrypted data

  - by SetiSeeker

  I am saving encrypted data to a database. Is there a way I can create a "hashcode" or fingerprint or checksum of the plain text data, that if I sort / order by on the "hashcode" the order would be the same as if I had saved the plain text data and perform the same sort / order by operation on it? I basically need a SOUNDEX() type function that will give me a value that will maintain the order of the plain text data. I would then save both encrypted data and the "hashcode" and when querying the data order by the "hashcode" field. I need to perform this in the application and preferably not in the SQL DB if at all possible. I am using Entity Framework and SQL 2008 and C# 4.0.

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• Layout form fields horizontally

  - by Don

  I'm using Ext JS 2.3.0 and have a bunch of fields contained within a FieldSet I'd like to have them laid out side-by-side instead, ideally with the label on top of the field instead of to the left of it. The relevant code is: var kpiFilterCombo = new Ext.form.ComboBox({ name: 'kpi', store: this.dashboardInst.servicesModel.getAvailableKPIsStore() }); var kpiLower = new Ext.form.TextField({ fieldLabel: "Lower", name: 'lowerBound' }); var kpiUpper = new Ext.form.TextField({ fieldLabel: "Higher", name: 'upperBound' }); var kpiFilterFieldset = new Ext.form.FieldSet({ title: locale['label.kpi.condition'], checkboxToggle: true, collapsed: true, autoHeight:true, items : [ kpiLower, kpiFilterCombo, kpiUpper, ] });

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• How do I make a sql query where fields are the result of a different query?

  - by CRP

  I have two tables, the first is like this: f1 | f2 | f3 | f4 ----------------- data.... the second contains info about the fields of the first: field | info ------------ f1 a f2 b f3 a etc. I would like to query the first table selecting the fields with a query on the second. So, for example, I might want to get data for fields where info is equal to "a", thus I would do "select f1, f3 from first_table". How do I do this programmatically? I was thinking about something along the lines of select (select fields from second_table where info='a') from first_table Thanks Chris

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• Best practice for partial updates in a RESTful service

  - by magiconair

  I am writing a RESTful service for a customer management system and I am trying to find the best practice for updating records partially. For example, I want the caller to be able to read the full record with a GET request. But for updating it only certain operations on the record are allowed, like change the status from ENABLED to DISABLED. (I have more complex scenarios than this) I don't want the caller to submit the entire record with just the updated field for security reasons (it also feels like overkill). Is there a recommended way of constructing the URIs? Do I use GET, POST, PUT or is there no agreed way of doing these kind of things? When reading the REST books RPC style calls seem to be frowned upon. Thanks Frank

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• CSS LESS class inheritance

  - by Haradzieniec

  Here is a css description of properties for my #myform1 .btn1 class: #myform1 .btn1 { ... } #myform1 .btn1:hover { ... } #myform1 .btn1.active { ... } #myform1 .btn1.disabled { ... } Is it possible to add absolutely the same properties for my #myform2 .btn2 class using LESS (any way is OK) without writing #myform1 .btn1 ,#myform2 .btn2 { ... } #myform1 .btn1:hover, #myform2 .btn2:hover { ... } #myform1 .btn1.active, #myform2 .btn2.active { ... } #myform1 .btn1.disabled, #myform2 .btn2.disabled { ... } Is it possible?

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• Import module stored in a cStringIO data structure vs. physical disk file

  - by Malcolm

  Is there a way to import a Python module stored in a cStringIO data structure vs. physical disk file? It looks like "imp.load_compiled(name, pathname[, file])" is what I need, but the description of this method (and similar methods) has the following disclaimer: Quote: "The file argument is the byte-compiled code file, open for reading in binary mode, from the beginning. It must currently be a real file object, not a user-defined class emulating a file." [1] I tried using a cStringIO object vs. a real file object, but the help documentation is correct - only a real file object can be used. Any ideas on why these modules would impose such a restriction or is this just an historical artifact? Are there any techniques I can use to avoid this physical file requirement? Thanks, Malcolm [1] http://docs.python.org/library/imp.html#imp.load_module

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• Asp.net help It gives error in home page only

  - by vikram

  i am new to asp.net. I have uploaded a site in ftp. except default.aspx remaining pages working. when i navigate to home page i.e Default.aspx it shows an error Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /Default.aspx Version Information: Microsoft .NET Framework Version:2.0.50727.3607; ASP.NET Version:2.0.50727.3082 Please help. I am stuck here itself. Thanks in advance

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• I want to use contents of String or Array in an IF ELSE statement for iphone

  - by Michael Robinson

  I want to check to see if an array is empty to activate a shipping method. Here is the code for returning the array. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *fullFileName = [NSString stringWithFormat:@"%@/arraySaveFile", documentsDirectory]; NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:fullFileName]; I want to write something like: if NSString *fullFileName ="" ; [nnNEP EnableShipping]; else [nnNEP DisableShipping]; OR if array contents ="" ; [nnNEP EnableShipping]; else [nnNEP DisableShipping]; I just can't find the right or description on how to do this properly. Thanks,

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• Passing values from action class to model class in symfony

  - by THOmas

  I have a action class for saving some data to a database.In action class iam getting a id through url.I have to save the id in table. I am getting the id by $request-getParameter('id') I used this code for saving $this-form-bind($request-getParameter('question_answers')); if ($this-form-isValid()) { $this-form-save(); $this-redirect('@homepage'); } in model class i used a override save method to save extra field public function save(Doctrine_Connection $conn = null) { if ($this-isNew()) { $now=date('Y-m-d H:i:s', time()); $this->setPostedAt($now); } return parent::save($conn); so i want to get the id value here . So how can i pass id value from action class to model class is any-other way to save the id in action class itself Thanks in advance

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• Overriding the admin Media class

  - by shacker

  Given an admin media class that sets up a rich text editor, like: class TutorialAdmin(admin.ModelAdmin): fields... class Media: js = ['/paths/to/tinymce.js',] I would like the ability to selectively override js depending on a field value in the model it references. I've added a "use_editor" boolean to the Tutorial model. The question is, how can I detect whether the current instance has that bool set? I'd like to end up with something like: class Media: if self.use_editor: js = ['/path/to/tinymce.js',] else: js = '' Ideas? Thanks.

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• xml2struct cannot access element(s)

  - by csetzkorn

  I try to use this: xml2struct when I use this xml: <XMLname attrib1="Some value"> <Element>Some text</Element> <DifferentElement attrib2="2">Some more text</DifferentElement> <DifferentElement attrib3="2" attrib4="1">Even more text</DifferentElement> </XMLname> I can create a struct: test = xml2struct('C:\bla\bla.xml'); (tested it with class(test)) It looks like this: test = Name: 'XMLname' Attributes: [1x1 struct] Data: '' Children: [1x7 struct] But I cannot access: test.XMLname.Element.Text I get: ??? Reference to non-existent field 'XMLname'. Any ideas?

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• Searching for the right pattern to handle login data

  - by stevebot

  Hi all, I'm working on a controller that handles logins for a Web app. These logins will come from multiple clients but will all contain the same data. However, depending on the client, this data will be interpreted into common entities for our webapp differently. For instance, we have a user code that gets sent in, and in one case we may use the first four digits of the code, and in another case 12 digits of the code to map to a field on a User entity. Instead of handling this all in the controller and having big nasty if blocks of logic, I would like to use a pattern to handle how this information gets ingested into our application. What are your opinions?

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• Core Data and BOOL setup

  - by John Valen

  I am working on an app that uses Core Data as its backend for managing SQLite records. I have everything working with strings and numbers, but have just tried adding BOOL fields and can't seem to get things to work. In the .xcdatamodel, I have added a field to my object called isCurrentlyForSale which is not Optional, not Transient, and not Indexed. The attribute's type is set to Boolean with default value NO. When I created the class files from the data model, the boilerplate code added for this property in the .h header was: @property (nonatomic, retain) NSNumber * isCurrentlyForSale; along with the @dynamic isCurrentlyForSale; in the .m implementation file. I've always worked with booleans as simple BOOLs. I've read that I could use NSNumber's numberWithBool and boolValue methods, but this seems like an aweful lot of extra code for something so simple. Can the @property in the header be changed to a simple BOOL? If so is there anything to watch out for? Thanks -John

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• jquery split() and indexOf results in "Object doesn't support this property or method"

  - by chris

  I have the following code: var selected = $('#hiddenField').val().split(","); ... if (selected.indexOf(id) > 0) { ... set value ... } I'm dynamically creating a CheckBoxList, and trying to remember the state of the checkboxes by putting the selected IDs into the hidden field. I get an error stating that "Object doesn't support this property or method". My assumption is that selected is an array, which should support indexOf. Is that incorrect?

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• Using type hints in Clojure for Java return values

  - by mikera

  I'm working on some Java / Clojure interoperability and came across a reflection warning for the following code: (defn load-image [resource-name] (javax.imageio.ImageIO/read (.getResource (class javax.imageio.ImageIO) resource-name))) => Reflection warning, clojure/repl.clj:37 - reference to field read can't be resolved. I'm surprised at this because getResource always returns a URL and I would therefore expect the compiler to use the appropriate static method in javax.imageio.ImageIO/read. The code works fine BTW so it is clearly finding the right method at run time. So two questions: Why is this returning a reflection warning? What type hint do I need to fix this?

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• Writing a post search algorithm.

  - by MdaG

  I'm trying to write a free text search algorithm for finding specific posts on a wall (similar kind of wall as Facebook uses). A user is suppose to be able to write some words in a search field and get hits on posts that contain the words; with the best match on top and then other posts in decreasing order according to match score. I'm using the edit distance (Levenshtein) "e(x, y) = e" to calculate the score for each post when compared to the query word "x" and post word "y" according to: score(x, y) = 2^(2 - e)(1 - min(e, |x|) / |x|) Each word in a post contributes to the total score for that specific post. This approach seems to work well when the posts are of roughly the same size, but sometime certain large posts manages to rack up score solely on having a lot of words in them while in practice not being relevant to the query. Am I approaching this problem in the wrong way or is there some way to normalize the score that I haven't thought of?

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• Modifying a MySQL database on a Ruby on Rails install

  - by James W

  Hello, sorry if this questions is overly basic or has been asked before but I simply cannot figure it out. On my Ruby on Rails site, I have a controller that accesses the fields of a table in my database and displays their "Name" field as a drop-down menu in one of my views. My problem is I need to change the options of that dropdown menu so I need a way to get into the MySQL database and change the values of those fields. Anyone know of a way to do this? It would be much appreciated. Thank you.

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• InfoPath browser form submitting dirty fields changed through javascript

  - by Xavier

  I'm trying to submit an InfoPath browser form with fields that have been modified through the Spell Checker included in Sharepoint server. The spell checker checks all the fields in the page and once the user closes the SpellChecker dialog, it changes the textboxes with the new values through javascript. When I click Submit, debug the FormEvents_Submit in the form code behind and try to do a GetNodeValue("XPath to changed field"), it still shows the old values. I realize that this may be a problem of doing postbacks and I'd like to do a full page postback once the SpellChecker is done changing all the textboxes. Any suggestions would be appreciated. Thanks.

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