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• Multiple views and source list in a Core Data app

  - by Ellie P.

  I'm working on my first major Cocoa app for an undergraduate research project. The application is document-based and uses Core Data. One of the entities is an abstract entity, Page. Page is parent of several types of pages: ie PageWithHeaderAndFooter, PageWithTwoColumns, BasicPage etc. Page has attributes, such as title and author, that all pages have in common. Each specific type of page has a certain number of layout blocks (PageWithHeaderAndFooter has three: header, footer, body. BasicPage has one: body. etc.) Additionally, all Page subclasses define layout-specific implementations of certain methods. The other relevant entity is Style, which defines the visual look of a Page. (Think of Pages as HTML and Style as CSS.) I would like my app to have an iTunes/Mail-like source list with sections. (One section would be Pages, the other would be Styles.) I have a pretty good idea how to do the sectioned source list (this was a great help). However, after hours of headbanging and fruitless googling, here's what I can't figure out: Pages and Styles listed in the source list, and when you select one of them, all of the relevant fields for that object appear at the right (mostly NSTextViews, pop up menus, etc). I laid that out and did all of the bindings in Interface Builder. The problem is, if my source list contains different types of pages, how do I get a different view to display at the right depending on the type of page selected? For example, if a BasicPage is selected, I want just what you see above: the general page stuff and one NSTextView that corresponds to the one field body of BasicPage. But if I select a PageWithHeaderAndFooter, I want to display the general page stuff plus three NSTextViews (one for header, body, and footer.) If I have a Style selected, I want to display various pop up menus, color wells, etc. For the pages at least, we're only talking about one or more NSTextViews, each of which corresponds to a String attribute of the respective entity. How would you do this? Thank you for your help!

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• jitter if multiple outliers in ggplot2 boxplot

  - by Andreas

  I am trying to find a suitable display to illustrate various properties within and across school classes. For each class there is only 15-30 data points (pupils). Right now i am leaning towards a whisker-less boxplot, showing only 1.,2. and 3. quartile + datapoints more then e.g. 1 population SD +/- the sample median. This I can do. However - I need to show this graph to some teachers, in order to gauge what they like most. I'd like to compare my graph with a normal boxplot. But the normal boxplot looks the same if there is only one outlier, or e.g. 5 outliers at the same value. In this case this would be a deal-breaker. e.g. test <-structure(list(value = c(3, 5, 3, 3, 6, 4, 5, 4, 6, 4, 6, 4, 4, 6, 5, 3, 3, 4, 4, 4, 3, 4, 4, 4, 3, 4, 5, 6, 6, 4, 3, 5, 4, 6, 5, 6, 4, 5, 5, 3, 4, 4, 6, 4, 4, 5, 5, 3, 4, 5, 8, 8, 8, 8, 9, 6, 6, 7, 6, 9), places = structure(c(1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L), .Label = c("a", "b"), class = "factor")), .Names = c("value", "places"), row.names = c(NA, -60L), class = "data.frame") ggplot(test, aes(x=places,y=value))+geom_boxplot() Here there are two outliers at ("a",9) - but only one "dot" shown. So my question: How to jitter the outliers. And - what kind of display would you suggest for this kind of data?

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• Sqlite table constraint - unique on multiple columns

  - by Rich

  I can find syntax "charts" on this on the sqlite website, but no examples and my code is crashing. I have other tables with unique constraints on a single column, but I want to add a constraint to the table on two columns. This is what I have that is causing a SQLiteException with the message "syntax error". CREATE TABLE name (column defs) UNIQUE (col_name1, col_name2) ON CONFLICT REPLACE I'm doing this based on the following: table-constraint

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• Django models: Use multiple values as a key?

  - by Rosarch

  Here is a simple model: class TakingCourse(models.Model): course = models.ForeignKey(Course) term = models.ForeignKey(Term) Instead of Django creating a default primary key, I would like to use both course and term as the primary key - taken together, they uniquely identify a tuple. Is this allowed by Django? On a related note: I am trying to represent users taking courses in certain terms. Is there a better way to do this? class Course(models.Model): name = models.CharField(max_length=200) requiredFor = models.ManyToManyField(RequirementSubSet, blank=True) offeringSchool = models.ForeignKey(School) def __unicode__(self): return "%s at %s" % (self.name, self.offeringSchool) class MyUser(models.Model): user = models.ForeignKey(User, unique=True) takingReqSets = models.ManyToManyField(RequirementSet, blank=True) takingTerms = models.ManyToManyField(Term, blank=True) takingCourses = models.ManyToManyField(TakingCourse, blank=True) school = models.ForeignKey(School) class TakingCourse(models.Model): course = models.ForeignKey(Course) term = models.ForeignKey(Term) class Term(models.Model): school = models.ForeignKey(School) isPrimaryTerm = models.BooleanField()

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• Setting up multiple areas in sharp MVC2 - SharpArchitecture 1.6

  - by Hamid

  Im using sharp architecture 1.6 framework to create a MVC2 app. I have two areas, "Business", "Content". Im using BusinessAreaRegistration.cs and ContentAreaRegistration.cs to register the areas by using AreaRegistration.RegisterAllAreas(). The Content area gets routed just fine, but the business area does not work at all. gooing to /business/businessObjects/ show the error Server Error in '/' Application. The resource cannot be found. How can I register both areas properly?

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• ExtJS Data Grid Column renderer to have multiple values

  - by Podlsk

  Hi, I am wondering if it is possible in ExtJS to have several values of the data source available to the renderer of the column. For example with the "Actions" column, the id is passed to the renderer. However I require both the user_id and id passed to the render. How may I do this? table_cols = [{ header: "User ID", width: 30, sortable: true, dataIndex: 'user_id' }, { header: "Actions", width: 60, sortable: false, dataIndex: 'id', renderer: function(val) { //IF USER ID MEETS A CONSTRAINT PRINT THE ID } }]; Thanks.

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• How to cache queries in Rails across multiple requests

  - by m.u.sheikh

  I want to cache query results so that the same results are fetched "for more than one request" till i invalidate the cache. For instance, I want to render a sidebar which has all the pages of a book, much like the index of a book. As i want to show it on every page of the book, I have to load it on every request. I can cache the rendered sidebar index using action caching, but i also want to actually cache the the query results which are used to generate the html for the sidebar. Does Rails provide a way to do it? How can i do it?

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• How can I build multiple processes with TBB?

  - by Jackie

  Now I plan to parallelize my sequential solver. I hope I could run several copies of my solver(maybe with different parameters) in parallel simultaneously on a multi-core computer. can I do this with TBB? The reason I ask this question is that the book says: do not introduce anything in your code that will not allow single-thread execution. Any experts can explain this issue? Thanks.

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• Multiple user roles in Ruby on Rails

  - by aguynamedloren

  I am building an inventory management application with four different user types: admin, employee, manufacturer, transporter. I haven't started coding yet, but this is what I'm thinking.. Manufacturers and transporters are related with has_many :through many-to-many association with products as follows: class Manufacturer < ActiveRecord::Base has_many :products has_many :transporters, :through => :products end class Product < ActiveRecord::Base belongs_to :manufacturer belongs_to :transporter end class Transporter < ActiveRecord::Base has_many :products has_many :manufacturers, :through => :products end All four user types will be able to login, but they will have different permissions and views, etc. I don't think I can put them in the same table (Users), however, because they will have different requirements, ie: vendors and manufacturers must have a billing address and contact info (through validations), but admins and employees should not have these fields. If possible, I would like to have a single login screen as opposed to 4 different screens. I'm not asking for the exact code to build this, but I'm having trouble determining the best way to make it happen. Any ideas would be greatly appreciated - thanks!

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• jquery find and replace multiple items

  - by client

  I have a monthly table that needs to be translated for each languages Something like this (doesnt work obviously) $('.lang-en #monthly th').each(function() { var text = $(this).text(); $(this).text(text.replace('Tam', 'Jan')); $(this).text(text.replace('Hel', 'Feb')); $(this).text(text.replace('Maa', 'Mar')); $(this).text(text.replace('Huh', 'Apr')); $(this).text(text.replace('Tou', 'May')); $(this).text(text.replace('Kes', 'Jun')); $(this).text(text.replace('Hei', 'Jul')); $(this).text(text.replace('Elo', 'Aug')); $(this).text(text.replace('Syy', 'Sep')); $(this).text(text.replace('Lok', 'Oct')); $(this).text(text.replace('Mar', 'Nov')); $(this).text(text.replace('Jou', 'Dec')); $(this).text(text.replace('Yht', 'Total')); });

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• Using Multiple File Handles for Single File

  - by Ryan Rosario

  I have an O(n^2) operation that requires me to read line i from a file, and then compare line i to every line in the file. This repeats for all i. I wrote the following code to do this with 2 file handles, but it does not yield the result I am looking for. I imagine this is a simple error on my part. IN1 = open("myfile.dat","r") IN2 = open("myfile.dat","r") for line1 in IN1: for line2 in IN2: print line1.strip(), line2.strip() IN1.close() IN2.close() The result: Hello Hello Hello World Hello This Hello is Hello an Hello Example Hello of Hello Using Hello Two Hello File Hello Pointers Hello to Hello Read Hello One Hello File The output should contain 15^2 lines.

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• Displaying rows in multiple columns

  - by zizo

  Not sure if this is doable using sql alone or not, but here is the problem. I have a weird requirement that data needs to be displayed in columns so users can compare data quickly! Here is what the result set looks like right now CustomerID Company Active 001 ATT Y 002 ATT N 003 ATT Y 001 VZ Y 002 VZ N 003 VZ Y 001 TM Y 002 TM Y 003 TM Y Now this is how they want to see it CustomerID Company Active Company Active Company Active 001 ATT Y VZ Y TM Y 002 ATT N VZ N TM Y 003 ATT Y VZ Y TM Y Assumptions: This could be a pretty long table, that's why they want to see all companies on one row, rather than needing to scroll down to see if active or not. Nummber of companies is between 1-3 in most cases Any help is appreciated. Thanks!

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• Best solution for a comment table for multiple content types

  - by KRTac

  I'm currently designing a comments table for a site I'm building. Users will be able to upload images, link videos and add audio files to the profile. Each of these types of content must be commentable. Now I'm wondering what's the best approach to this. My current options are: 1. to have one big comments table and a link tables for every content type (comments_videos, ...) with comment_id and _id. 2. to have comments separated by the type of content their for. So each type of content would have his own comments table with the comments for that type.

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• [PHP] Keeping track of file dependencies across multiple files in a medium-size project

  - by Goro

  Hello, My PHP code is split between many files, and often I find myself using code like this this: require_once( "$preIP/functions.php" ); The problem is that I have to keep using this a lot, and sometimes these statements are becoming redundant. What kind of system do yo use/would recommend for keeping track of all the inter-dependencies in all the PHP files?

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• adding multiple <asp:Hyperlink>s into a repeater

  - by Colin Pickard

  I have a repeater control, and I want to put an unknown number of <asp:Hyperlink>s into the template, for example if you start with this: <asp:Repeater runat="server" ID="PetsRepeater"> <ItemTemplate> <%#DataBinder.Eval(Container.DataItem, "Owner")%> <%#this.ListPets(Container.DataItem)%> </ItemTemplate> </asp:Repeater> and in code behind: public partial class test1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { PetOwner p = new PetOwner() { Owner = "Jimmy", PetNames = new List<String>() { "Nemo", "Dory" } }; List<PetOwner> PetOwners = new List<PetOwner>() { p }; PetsRepeater.DataSource = PetOwners; PetsRepeater.DataBind(); } } protected String ListPets(Object PetOwner) { StringBuilder sb = new StringBuilder(); foreach (String Name in ((PetOwner)PetOwner).PetNames) { if (sb.Length > 0) sb.Append(", "); sb.Append(Name); } return sb.ToString(); } } class PetOwner { public String Owner; public List<String> PetNames; } Now suppose instead of having the string "Nemo, Dory" in my repeater, I want something like this: <asp:HyperLink runat=server Text="Nemo" NavigateUrl="Pet.aspx?Name=Nemo" />, <asp:HyperLink runat=server Text="Dory" NavigateUrl="Pet.aspx?Name=Dory" /> How can I do that? I tried putting a foreach inline in the aspx page, but I get the error Invalid expression term 'foreach'.

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• best practices - multiple functions vs single function with switch case

  - by Amit

  I have a situation where I need to perform several small (but similar) tasks. I can think of two ways to achieve this. First Approach: function doTask1(); function doTask2(); function doTask3(); function doTask4(); Second Approach: // TASK1, TASK2, ... TASK4 are all constants function doTask(TASK) { switch(TASK) { case TASK1: // do task1 break; case TASK2: // do task2 break; case TASK3: // do task3 break; case TASK4: // do task4 break; } } A few more tasks may be added in future (though the chances are rare. but this cannot be ruled out) Please suggest which of the two approaches (or if any other) is a best practice in such a situation.

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• JQuery & Wordpress - Hide multiple divs inside unique ID?

  - by steelfrog

  I'm trying to write a short Wordpress JQuery for Wordpress comments that would allow users to toggle specific comments on and off. This is my first script, and I'm having a tough time. Once overtly simplified, the comments are formatted like so: <li id="li-comment-<?php comment_ID() ?>"> <div class="gravatar"><img src="#" /></div> <div class="comment_poster">Username</div> <div class="comment_options">Option buttons</div> <div class="comment_content">Comment</div> </li> In the "comment_options" DIV is a series of buttons that control the individual comments (reply, quote, edit, close, etc.). The close button is what I'm trying to write this script for. I need it to toggle the "gravtar" and "comment_content" DIVs, but leave the rest in place so that it still displays the user ID and controls. However, I can't seem to figure out how to contain the action. This is what I have so far: $(document).ready(function() { $("div.trigger").click(function() { $("div.gravatar").slideToggle(); $("div.comment_content").slideToggle(); }); }); The problem with this is that it closes are the .gravatar and .comment_content on the page, not just the ones found in the same list item. If you're curious, this is the page I'm working on. Any idea how I could resolve this? Again, this is my firs time with JQuery, so I'm a little fuzzy on how it all works. Thanks!

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• Insert multiple line breaks into a JavaScript string (regex) (CodeMirror)

  - by PJH

  I have a few strings and I would like to insert some line breaks into them at certain points. I figured out a few of the logistics but as a whole I can't seem to crack this problem, probably because I have limited experience with regex. Basically I have a long string of XML tags that is all on one line. I want to add line breaks at certain points to get the data more formatted and looking nice. I am using CodeMirror to display this data on a webpage but for some reason its all on line #1. So I need to go from something like this: <Sample><Name></Name><PhoneNumber><AreaCode></AreaCode><Number></Number></PhoneNumber></Sample> To something like this: <Sample> <Name></Name> <PhoneNumber> <AreaCode></AreaCode> <Number></Number> </PhoneNumber> </Sample> CodeMirror will take care of the rest of the formatting all I need to do is insert the line breaks in the right spot using regex or a loop of some sort. The Tags will or can change so I am guessing regex has to be used. I have had success inserting line breaks with \n and &#xD but can't seem to get regex to detect the proper locations. Any help would be greatly appreciated. Thanks. UPDATE I overlooked this but the brackets are in fact being sent as < and > So example tag would look like: &lt;PhoneNumber&gt; or &lt;/PhoneNumber&gt; So basically need to insert a \n after every &gt; that is a closing tag or a beginning tag that contains children tags.

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• C# Regular Expression to find multiple sequences of punctuation characters

  - by Aran Mulholland

  Im trying to match punctuations using regular expressions. Do i have to specify every punctuation character i am searching for or is there is an escape sequence i can use? Im sitting here smiling to myself that the answers i might get will just be "Yes" or "No", please elaborate.... (that sentence should match the regular expression twice)

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• MYSQL select query where multiple conditions in same column must exist

  - by David

  I'm putting together a dating site and I'm having a mysql query issue. This works: SELECT * FROM `user` , `desired_partner` , `user_personality` WHERE dob BETWEEN '1957-05-18' AND '1988-05-18' AND country_id = '190' AND user.gender_id = '1' AND user.user_id = desired_partner.user_id AND desired_partner.gender_id = '2' AND user.user_id = user_personality.user_id AND user_personality.personality_id = '2' The sql finds any male (gender_id=1) with ATLEAST personality trait 2 (and possibly other personality traits) between certain age range in the USA (country_id=190) looking for a female (gender_id=2). Question 1) How do I make it so it returns those with personality type 2 ONLY and no other personality traits? Find any man in the USA that is between 22 and 53 that is of personality type 2 (only) that is looking for a woman. Question 2) Supposing I want to find someone that matches personality type 1, personality type 2, and personality type 5 ONLY. There are 14 personality traits in the database and a user can be associated with any of them. Find any man in the USA that is between 22 and 53 that is of personality type 1, 2, and 5 (ONLY) that is looking for a woman.

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• Delphi Application using COMMIT and ROLLBACK for Multiple SQL Updates

  - by Matt

  Is it possible to use the SQL BEGIN TRANSACTION, COMMIT TRANSACTION, ROLLBACK TRANSACTION when embedding SQL Queries into an application with mutiple calls to the SQL for Table Updates. For example I have the following code: Q.SQL.ADD(<UPDATE A RECORD>); Q.ExecSQL; Q.Close; Q.SQL.Clear; Q.SQL.ADD(<Select Some Data>); Q.Open; Set Some Variables Q.Close; Q.SQL.Clear; Q.SQL.ADD(<UPDATE A RECORD>); Q.ExecSQL; What I would like to do is if the second update fails I want to roll back the first transaction. If I set a unique notation for the BEGIN, COMMIT, ROLLBACK so as to specify what is being committed or rolled back, is it feasible. i.e. before the first Update specify BEGIN TRANSACTION_A then after the last update specify COMMIT TRANSACTION_A I hope that makes sense. If I was doing this in a SQL Stored Procedure then I would be able to specify this at the start and end of the procedure, but I have had to break the code down into manageable chunks due to process blocks and deadlocks on a heavy loaded SQL Server.

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• Programatically select multiple files in windows explorer

  - by Orion Edwards

  I can display and select a single file in windows explorer like this: explorer.exe /select, "c:\path\to\file.txt" However, I can't work out how to select more than one file. None of the permutations of select I've tried work. Help! Note: I looked at these pages for docs, neither helped. http://support.microsoft.com/kb/314853 http://www.infocellar.com/Win98/explorer-switches.htm

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• Best way to handle multiple getView calls from inside an Adapter

  - by Samuh

  I have a ListView with custom ArrayAdapter. Each of the row in this ListView has an icon and some text. These icons are downloaded in background,cached and then using a callback, substituted in their respective ImageViews. The logic to get a thumbnail from cache or download is triggered every time getView() runs. Now, according to Romain Guy: "there is absolutely no guarantee on the order in which getView() will be called nor how many times." I have seen this happen, for a row of size two getView() was being called six times! How do I change my code to avoid duplicate thumbnail-fetch-requests and also handle view recycling? Thanks.

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• How can I disable multiple links with jQuery?

  - by Samantha J

  I have the following HTML: <a title="Login" data-href="/MyAccount/Access/Login" data-title="Admin" data-entity="n/a" id="loginLink" class="nav-button dialogLink"><b>Login</b></a> <a title="Register" data-href="/MyAccount/Access/Register" data-title="Admin" data-entity="n/a" id="registerLink" class="nav-button dialogLink"><b>Register</b></a> When a user clicks on the #loginLink or #registerLink I would like to disable the link and call a dialog script. I created the following function: $("#loginLink, #registerLink") .click(function () { $('#loginLink').prop('disabled', true); $('#registerLink').prop('disabled', true); dialog(this); }); It calls the dialog correctly but doesn't disable the links and if I click the buttons more than once it calls up more than one dialog box. Is there something I am doing wrong? I can't see why it would not work.

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• CakePHP Multiple Nested Joins

  - by Paul

  I have an App in which several of the models are linked by hasMany/belongsTo associations. So for instance, A hasMany B, B hasMany C, C hasMany D, and D hasMany E. Also, E belongs to D, D belongs to C, C belongs to B, and B belongs to A. Using the Containable behavior has been great for controlling the amount of information comes back with each query, but I seem to be having a problem when trying to get data from table A while using a condition that involves table D. For instance, here is an example of my 'A' model: class A extends AppModel { var $name = 'A'; var $hasMany = array( 'B' => array('dependent' => true) ); function findDependentOnE($condition) { return $this->find('all', array( 'contain' => array( 'B' => array( 'C' => array( 'D' => array( 'E' => array( 'conditions' => array( 'E.myfield' => $some_value ) ) ) ) ) ) )); } } This still gives me back all the records in 'A', and if it's related 'E' records don't satisfy the condition, then I just get this: Array( [0] => array( [A] => array( [field1] => // stuff [field2] => // more stuff // ...etc ), [B] => array( [field1] => // stuff [field2] => // more stuff // ...etc ), [C] => array( [field1] => // stuff [field2] => // more stuff // ...etc ), [D] => array( [field1] => // stuff [field2] => // more stuff // ...etc ), [E] => array( // empty if 'E.myfield' != $some_value' ) ), [1] => array( // ...etc ) ) When If 'E.myfield' != $some_value, I don't want the record returned at all. I hope this expresses my problem clearly enough... Basically, I want the following query, but in a database-agnostic/CakePHP-y kind of way: SELECT * FROM A INNER JOIN (B INNER JOIN (C INNER JOIN (D INNER JOIN E ON D.id=E.d_id) ON C.id=D.c_id) ON B.id=C.b_id) ON A.id=B.a_id WHERE E.myfield = $some_value

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