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  • Getting value from key pair value into appended property using jQuery

    - by Neil
    How do I get the value from a key pair value into the rel property of an anchor tag? When I split the code to put the value in the correct place it doesn't work, the end of the a tag would appear on screen instead value wouldn't be applied. When I look at the resulting code in console in Firebug the rel and href swapped order so the rel is first. The 'key' should be and is in the correct location but the 'value' needs to be applied to the rel attribute. What am I doing wrong? $(function() { var obj = {"firstThing":"4","secondThing":"6","aThirdThing":"2","anotherThing":"3","followedByAnother":"4"}; $.each(obj, function(key,value) { $('#newmine').append("<li class='tagBlocks'>","<a href='#' rel=''>",value," ",key); }); });

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  • PHP memory_limit local value does not match php.ini value

    - by Buttle Butkus
    CentOS system. Summary: changed memory_limit in master and local php.ini and yet no change in the local value for a particular virtual host. Trying to improve performance, I set the memory_limit to 1024M in /etc/php.ini phpinfo() shows Master and Local values for other virtual hosts on the server as 1024M. Changing the value in /etc/php.ini changes all values, except one. One site is stuck with a local value of 256M. I thought I found the problem: there is a php.ini file (which I didn't know about) in that site's root, and it had memory_limit = 256M I changed it to 1024M. Problem solved? No. And now I don't know where to look. Obviously, I've restarted apache (/etc/init.d/httpd restart), and that usually does the trick. I also turned off APC cache, though I don't think it would cache ini files. And finally, I tried adding this to the virtual host in httpd.conf: php_value memory_limit 536870912 (yes, that would be 5 GB) And that had no effect whatsoever. What else could be the problem? Thanks.

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  • How to use the Value of a Selected Value from a DropDownList populated with AJAX/PHP

    - by mouthpiec
    Hi, I have form with two dropdownlists (lets say A and B). When I select a value from A, B is being populated accordingly using AJAX In the same page I have a button, that when pressed, posts the values of the selected items of the dropdownlists to another PHP page. The problem I am having is that the selected value of B is returned as Blank/Empty. Is there a way to store the selected value of a dropdownlist populated using AJAX? Code below: (Main FORM) <form name="NewBar" method="post" onsubmit="return validateFormOnSubmit(this)" action="AssignContactDetailToBar_f.php"> <tr> <td width="150"><b>Bar:</b></td> <td> <select name = "bar" onChange="getContact('AssignContactDetailToBar_f_getContacts.php?bar='+this.value)" size = 1 style = "width:190px"> <option value = "">---Select---</option> <?php while ($data = mysql_fetch_array($r_getBarsDetails)) { echo "<option value=\"".$data['bar_id']."\">".$data['bar_name']." (".$data['town_name'].")</option>"; } ?> </td> </tr> <tr> <td width="150"><b>Contact Person:</b></td> <td> <div id="persondiv"><select name = "person" size = 1 style = "width:190px"> <option value = "">--Select Bar--</option> </td> </tr> <tr> <td> <input name="security" type="text" size="15"> </td> <td> <input type="submit" name="Submit" value="Submit"> </td> </tr> </form> FORM to populate the 2nd Dropdownlist <select name="person" size = 1 style = "width:190px"> <option value = "">--Select Person--</option> <?php while($data=mysql_fetch_array($result)) { echo "<option value=\"".$data['person_id']."\">".$data['person_name']." ".$data['person_surname']." (".$data['town_name'].")</option>"; } ?> if you would like to see the complete code download from here

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  • How to get the value of the input element of live of Value

    - by Aruna
    HI, i am having a Input hidden element like in my JQuery i am setting the value for the above input type after some ajax call like EDIT::: $.ajax({ type: "POST", url: "http://localhost/FormBuilder/index.php/forms/saveForm/", async: false, data: "formname="+formname+"&status="+status, success: function(msg){$("#FormID").val(msg); }//success });//ajax Now somewhere in the code after this i want to fetch the value of this FIeld.How to get this value on live of value for this input type.. EDIT::: i am retriving like by var FORMID=$("#FormID").val();//but shows null How to get the value of it on live of this Input element

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  • Debugging Key-Value-Observing overflow.

    - by Paperflyer
    I wrote an audio player. Recently I started refactored some of the communication flow to make it fully MVC-compliant. Now it crashes, which in itself is not surprising. However, it crashes after a few seconds inside the Cocoa key-value-observing routines with a HUGE stack trace of recursive calls to NSKeyValueNotifyObserver. Obviously, it is recursively observing a value and thus overflowing the NSArray that holds pending notifications. According to the stack trace, the program loops from observeValueForKeyPath to setMyValue and back. Here is the according code: - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if ([keyPath isEqual:@"myValue"] && object == myModel && [self myValue] != [myModel myValue]) { [self setMyValue:[myModel myValue]; } } and - (void)setMyValue:(float)value { myValue = value; [myModel setMyValue:value]; } myModel changes myValue every 0.05 seconds and if I log the calls to these two functions, they get called only every 0.05 seconds just as they should be, so this is working properly. The stack trace looks like this: -[MyDocument observeValueForKeyPath:ofObject:change:context:] NSKeyValueNotifyObserver NSKeyValueDidChange -[NSObject(NSKeyValueObserverNotification) didChangeValueForKey:] -[MyDocument setMyValue:] _NSSetFloatValueAndNotify …repeated some ~8k times until crash Do you have any idea why I could still be spamming the KVO queue?

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  • Passing variables to shopping cart with Javascript

    - by albatross
    This question is an extension of this one: http://stackoverflow.com/questions/2359238/calculate-order-price-by-date-selection-value I'm trying to make a conference registration page based off the previous page, which passes the variables(name, email, price) to my organization's outdated shopping cart using javascript. I'm also using Seminar Registration by CSSTricks (http://css-tricks.com/examples/SeminarRegTutorial/) Currently, my proceed to payment button produces an 'element is undefined' error on line 298(same thing on unresolved previous question, linked above^): switch (document.Information.amount.value) { Any help would be greatly appreciated. I'm at my wits end with this. Here is the page: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Seminar Registration Form with jQuery</title> <link rel="stylesheet" type="text/css" href="css/style.css" media="screen" /> <script src="js/jquery-1.2.6.js" type="text/javascript" charset="utf-8"></script> <script src="js/form-fun.jquery.js" type="text/javascript" charset="utf-8"></script> <!--[if IE]> <style type="text/css"> legend { position: relative; top: -30px; } fieldset { margin: 30px 10px 0 0; } </style> <script type="text/javascript"> $(function(){ $("#step_2 legend").css({ opacity: 0.5 }); $("#step_3 legend").css({ opacity: 0.5 }); }); </script> <![endif]--> </head> <body> <div id="page-wrap"> <h1>Conference <span>Registration</span></h1> <form action="#" method="post"> <fieldset id="step_1"> <legend>Step 1</legend> <label for="num_attendees"> How cool are you? </label> <select id="amount"> <option id="0" value="0">Please Choose</option> <option id="prof" value="90.00">Professional</option> <option id="grad" value="55.00">Graduate Student</option> </select> <br /> <div id="attendee_1_wrap" class="name_wrap push"> <h3>Who are you?</h3> <p> <label for="FirstName"> First Name: </label> <input type="text" id="FirstName" class="name_input"></input> </p> <p> <label for="LastName"> Last Name: </label> <input type="text" id="LastName" class="name_input"></input> </p> <p> <label for="OfficialTitle"> Official Title: </label> <input type="text" id="OfficialTitle" class="name_input"></input> </p> <h3>How do we find you?</h3> <label for="email">Email: </label> <input id="email" name="email" class="required email" /> </p> <p> <label for="Address">Street Address: </label><input name="Address" id="Address" type="text" size="20" maxlength="75" /> </p> <p> <label for="City">City: </label><input name="City" id="City" /> </p> <p> <label for="State">State: </label><select name="State" id="State"> <option selected value="IL">IL</option> <option value="AL">AL</option> <option value="AK">AK</option> <option value="AZ">AZ</option> <option value="AR">AR</option> <option value="CA">CA</option> <option value="CO">CO</option> <option value="CT">CT</option> <option value="DE">DE</option> <option value="DC">DC</option> <option value="FL">FL</option> <option value="GA">GA</option> <option value="HI">HI</option> <option value="ID">ID</option> <option value="IN">IN</option> <option value="IA">IA</option> <option value="KS">KS</option> <option value="KY">KY</option> <option value="LA">LA</option> <option value="ME">ME</option> <option value="MD">MD</option> <option value="MA">MA</option> <option value="MI">MI</option> <option value="MN">MN</option> <option value="MS">MS</option> <option value="MO">MO</option> <option value="MT">MT</option> <option value="NE">NE</option> <option value="NV">NV</option> <option value="NH">NH</option> <option value="NJ">NJ</option> <option value="NM">NM</option> <option value="NY">NY</option> <option value="NC">NC</option> <option value="ND">ND</option> <option value="OH">OH</option> <option value="OK">OK</option> <option value="OR">OR</option> <option value="PA">PA</option> <option value="RI">RI</option> <option value="SC">SC</option> <option value="SD">SD</option> <option value="TN">TN</option> <option value="TX">TX</option> <option value="UT">UT</option> <option value="VT">VT</option> <option value="VA">VA</option> <option value="WA">WA</option> <option value="WV">WV</option> <option value="WI">WI</option> <option value="WY">WY</option> </select> </p> <p> <label for="Zip">Zip Code: </label><input name="Zip" id="Zip" type="text" value="" size="5" maxlength="10" /> </p> <p> <label for="Phone">Telephone: </label><input name="Phone" id="Phone" type="text" value="" size="10" maxlength="13" /> </p> </div> </fieldset> <fieldset id="step_2"> <legend>Step 2</legend> <p> Do you work in Higher Education? </p> <input type="radio" id="company_name_toggle_on" name="company_name_toggle_group"></input> <label for="company_name_toggle_on">Yes</label> &emsp; <input type="radio" id="company_name_toggle_off" name="company_name_toggle_group"></input> <label for="company_name_toggle_off">No</label> <div id="company_name_wrap"> <label for="company_name"> Which School? </label> <input type="text" id="company_name"></input> </div> <div class="push"> <p> Will anyone in your group require special accommodations? </p> <input type="radio" id="special_accommodations_toggle_on" name="special_accommodations_toggle"></input> <label for="special_accommodations_toggle_on">Yes</label> &emsp; <input type="radio" id="special_accommodations_toggle_off" name="special_accommodations_toggle"></input> <label for="special_accommodations_toggle_off">No</label> </div> <div id="special_accommodations_wrap"> <label for="special_accomodations_text"> Please explain below: </label> <textarea rows="10" cols="10" id="special_accomodations_text"></textarea> </div> </fieldset> <fieldset id="step_3"> <legend>Step 3</legend> <label for="rock"> Are you ready to rock? </label> <input type="checkbox" id="rock"></input> <p> <INPUT onclick="javascript:PaymentButtonClick()" type=button value="Proceed to payment" name=PaymentButton> <img src="images/visa1.gif" /> <img src="images/mastercard1.gif" /> </p> </fieldset> </form> </div> <FORM name="emailForm" action="mailform.asp" method=post"> <INPUT type="hidden" value="Conference Registration" name="mf_subject"> <INPUT type="hidden" value="Yes" name="mf_email_results"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="20" name="num_attendees"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="FirstName"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="22" name="LastName"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffff" size="64" name="OfficialTitle"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffff" size="40" name="email"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffff" size="48" name="Address"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="City"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="State"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="Zip"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="Phone"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffa0" size="17" name="company_name"> <INPUT type="hidden" title="" style="BACKGROUND-COLOR: #ffffff" size="20" name="special_accomodations_text"> <INPUT type="hidden" value="[email protected]" name="mf_from"> <INPUT type="hidden" value="[email protected]" name="mf_to"> </FORM> <FORM name="addform" action="https://webcluster.niu.edu/CreditCard/servlet/Shopping_Cart_Add_Item_Servlet" method="post"> <INPUT type="hidden" value="orient" name="Dept_ID"> <INPUT type="hidden" value="Orientation" name="Product_Name"> <INPUT type="hidden" value="z000000" name="Product_Code"> <INPUT type="hidden" value="" name="amount"> <INPUT type="hidden" value="/orientation/index.shtml" name="return_link"> <INPUT type="hidden" value="http://www.niu.edu" name="return_server"> <INPUT type="hidden" value="1" name="quantity"> <INPUT type="hidden" value="0" name="tax"> <INPUT type="hidden" value="0" name="ship"> <INPUT type="hidden" value="DQ83225" name="sale_id"> <INPUT type="hidden" value="XXXXXX" name="sale_acct"> </FORM> <SCRIPT language="Javascript"> function PaymentButtonClick() { switch (document.Information.amount.value) { case 'prof': document.Information.amount.value = 90.00; break; case 'grad': document.Information.amount.value = 55.00; break; } document.addform.Product_Name.value = document.Information.FirstName.value + ","+ document.Information.LastName.value+","+ document.Information.OfficialTitle.value+","+ document.Information.email.name+","+","+ document.Information.Address.value+ "," + document.Information.City.value+ "," + document.Information.State.value+ "," + document.Information.Zip.value+ "," + document.Information.Phone.value+ "," + document.Information.company_name.value+ "," + document.Information.special_accomodations_text.value; document.addform.Product_Code.value = document.Information.LastName.value; if ((document.Information.UCheck.checked==true) && (document.Information.altDate1.value != "") && (document.Information.altDate1.value != "x")) { if (document.Information.StudentLastName.value != "" || document.Information.StudentFirstName.value != "" || document.Information.StudentID.value != "" ) { document.addform.submit(); } else { alert("Please enter missing information"); } } } </SCRIPT> </body> </html>

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  • wpf DependencyProperty Not accepting default value for short

    - by biju
    Hi, I was trying to use tis depencency property in my code but it gives me error says that Default value type does not match type of property 'MyProperty'.But short should accept 0 as default value.Ans also if i try to give null as default value it works..even if its a non nullabel type.How come this happens.. public short MyProperty { get { return (short)GetValue(MyPropertyProperty); } set { SetValue(MyPropertyProperty, value); } } // Using a DependencyProperty as the backing store for MyProperty. This enables animation, styling, binding, etc... public static readonly DependencyProperty MyPropertyProperty = DependencyProperty.Register("MyProperty", typeof(short), typeof(Window2), new UIPropertyMetadata(0));

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  • .NET - getting form field key/value pairs?

    - by AverageJoe719
    Hi there, I've got a form with textboxes and I want to run some server side validation code on the values after the form is submitted. I was planning to grab all the textbox controls on the page and adding them to a list, then running a for each loop that says for each control in the list query the database where fieldValidation.Name = Control.Name. This would return to me an object and an associated function where i coudl then input the Control.Value and actually perform the validation. My friend told me building the list is not necessary because all languages have a way to get key/value pairs from forms (he doesn't know .NET so coudln't help me). I may be searching the wrong term here but I have not been able to find a result, or maybe I misunderstood my friend. Is there some kind of dictionary or key/value pair automatically generated upon form submissions that contains the value that was submitted and...I guess also the control? Or am I just misunderstanding him. If he was just saying populate a key/value pair based on the form submissions, how does that help me in this situation over a list that contains the control? Thanks =)

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  • JQuery returns wrong value for IE Compatibility

    - by o-logn
    Hey , I'm using JQuery and there seems to be a problem when I run IE in compatibility mode (and generally any IE less than version 8). I'm trying to use attr("value") for a button control. In IE8, and other browsers, this works fine and the result of this code: alert($(this).attr("value")); is simply the value of set in the button attribute (e.g. Home, Settings, Help etc..) However, when this is run in IE compatibility view, I get the entire HTML as the output value: <SPAN class=ui-button-text>Home</SPAN> This causes my checks to fail. Is there a way to return just the Home section across all browsers? Thanks

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  • Can a single argument constructor with a default value be subject to implicit type conversion

    - by Richard
    I understand the use of the explicit keyword to avoid the implicit type conversions that can occur with a single argument constructor, or with a constructor that has multiple arguments of which only the first does not have a default value. However, I was wondering, does a single argument constructor with a default value behave the same as one without a default value when it comes to implicit conversions?

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  • MySQL: Auto-increment value: 0 is smaller than max used value: xx

    - by Rhodri
    Increasingly I'm getting tables having to be repaired dwith the message returned of: Auto-increment value: 0 is smaller than max used value: xx This has happened on tables with 200 rows and tables with ~3 million rows, but so far the same few tables have had the problem. I'm running MySQL 5.0.22. The repairs are run by a script which checks every minute for the need to repair MySQL tables. I also have an automated backup of the 6 Gigabyte database running very two hours and the repairs always get trigged around the time of the backup. Any ideas?

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  • What mail storage should I choose for our web application; IMAP, key-valud store, rdbms, ...

    - by tvrtko
    I have to store e-mail messages for use with our application. I have "metadata" for all messages inside a relational database, but I don't feel comfortable keeping message content (gigabytes and terabytes of email data) inside a database. I'm currently using IMAP as a storage, but I have my doubts if I choose correctly. First of all there is a problem of uidvalidity and how to keep a permanent reference to message inside IMAP. Second, I'm not sure if this is the most robust solution in terms of backup/restore strategies, corruption of store, replication ... Positive side is that I can query IMAP using the headers because the data is mostly indexed. I don't know if key-value stores are a better approach (Casandra, Tokyo cabinet, redis). How they handle storing 1KB and 50MB of data. How they prevent corruption and when corruption or device failure happens how can I repair the store.

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  • iPhone Key-Value Observer: observer not registering in UITableViewController

    - by Scott
    Hi Fellow iPhone Developers, I am an experienced software engineer but new to the iPhone platform. I have successfully implemented sub-classed view controllers and can push and pop parent/child views on the view controller stack. However, I have struck trouble while trying to update a view controller when an object is edited in a child view controller. After much failed experimentation, I discovered the key-value observer API which looked like the perfect way to do this. I then registered an observer in my main/parent view controller, and in the observer I intend to reload the view. The idea is that when the object is edited in the child view controller, this will be fired. However, I think that the observer is not being registered, because I know that the value is being updated in the editing view controller (I can see it in the debugger), but the observing method is never being called. Please help! Code snippets follow below. Object being observed. I believe that this is key-value compliant as the value is set when called with the setvalue message (see Child View Controller below). X.h: @interface X : NSObject <NSCoding> { NSString *name; ... @property (nonatomic, retain) NSString *name; X.m: @implementation X @synthesize name; ... Main View Controller.h: @class X; @interface XViewController : UITableViewController { X *x; ... Main View Controller.m: @implementation XViewController @synthesize x; ... - (void)viewDidLoad { ... [self.x addObserver:self forKeyPath: @"name" options: (NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld) context:nil]; [super viewDidLoad]; } ... - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if ([keyPath isEqual:@"name"]) { NSLog(@"Found change to X"); [self.tableView reloadData]; } [super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; } Child View Controller.m: (this correctly sets the value in the object in the child view controller) [self.x setValue:[[tempValues objectForKey:key] text] forKey:@"name"];

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  • Setting up a "to-many" relationship value dependency for a transient Core Data attribute

    - by Greg Combs
    I've got a relatively complicated Core Data relationship structure and I'm trying to figure out how to set up value dependencies (or observations) across various to-many relationships. Let me start out with some basic info. I've got a classroom with students, assignments, and grades (students X assignments). For simplicity's sake, we don't really have to focus much on the assignments yet. StudentObj <--->> ScoreObj <<---> AssignmentObj Each ScoreObj has a to-one relation with the StudentObj and the AssignmentObj. ScoreObj has real attributes for the numerical grade, the turnInDate, and notes. AssignmentObj.scores is the set of Score objects for that assignment (N = all students). AssignmentObj has real attributes for name, dueDate, curveFunction, gradeWeight, and maxPoints. StudentObj.scores is the set of Score objects for that student (N = all assignments). StudentObj also has real attributes like name, studentID, email, etc. StudentObj has a transient (calculated, not stored) attribute called gradeTotal. This last item, gradeTotal, is the real pickle. it calculates the student's overall semester grade using the scores (ScoreObj) from all their assignments, their associated assignment gradeWeights, curves, and maxPoints, and various other things. This gradeTotal value is displayed in a table column, along with all the students and their individual assignment grades. Determining the value of gradeTotal is a relatively expensive operation, particularly with a large class, therefore I want to run it only when necessary. For simplicity's sake, I'm not storing that gradeTotal value in the core data model. I don't mind caching it somewhere, but I'm having a bitch of a time determining where and how to best update that cache. I need to run that calculation for each student whenever any value changes that affects their gradeTotal. If this were a simple to-one relationship, I know I could use something like keyPathsForValuesAffectingGradeTotal ... but it's more like a many-to-one-to-many relationship. Does anyone know of an elegant (and KVC correct) solution? I guess I could tear through all those score and assignment objects and tell them to register their students as observers. But this seems like a blunt force approach.

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  • Javascript wont change value in TextBox

    - by mattgcon
    Here is my javascript function AppendValues(e) { var lghtcnt = 0; var vars = e.id.split(';'); var highcnt = false; var lghtid = ""; var maxltcnt = 100; for (var x = 0; x < vars.length; x++) { var tokens = vars[x].split('|'); var pram = tokens if (tokens[0] == "ID"){ lghtid = tokens[1]; } if (tokens[0] == "LTC"){ var itemcnt = 0; var currentcnt = 0; currentcnt = parseInt(tokens[1].toString()); var txtid = document.getElementById(vars[0] + ';' + vars[1] + ';' + vars[2] + ';' + vars[3] + ';' + vars[4]); if (e.checked) { totallightcnt += currentcnt; if (totallightcnt > maxltcnt) { document.getElementById(vars[0] + ';' + vars[1] + ';' + vars[2] + ';' + vars[3] + ';' + vars[4]).value = 0; alert('This puts you over the limit of 100 total lights, please make adjustments.'); break; } document.getElementById(vars[0] + ';' + vars[1] + ';' + vars[2] + ';' + vars[3] + ';' + vars[4]).value = currentcnt.toString(); } else { totallightcnt -= currentcnt; document.getElementById(vars[0] + ';' + vars[1] + ';' + vars[2] + ';' + vars[3] + ';' + vars[4]).value = 0; break; } } if (highcnt) { break; } } } Here is the issue, when I check the value it DOES say theupdated value but it does not display to the user on the webpage. What could be the issue?

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  • NHibernate and objects with value-semantics

    - by Groo
    Problem: If I pass a class with value semantics (Equals method overridden) to NHibernate, NHibernate tries to save it to db even though it just saved an entity equal by value (but not by reference) to the database. What am I doing wrong? Here is a simplified example model for my problem: Let's say I have a Person entity and a City entity. One thread (producer) is creating new Person objects which belong to a specific existing City, and another thread (consumer) is saving them to a repository (using NHibernate as DAL). Since there is lot of objects being flushed at a time, I am using Guid.Comb id's to ensure that each insert is made using a single SQL command. City is an object with value-type semantics (equal by name only -- for this example purposes only): public class City : IEquatable<City> { public virtual Guid Id { get; private set; } public virtual string Name { get; set; } public virtual bool Equals(City other) { if (other == null) return false; return this.Name == other.Name; } public override bool Equals(object obj) { return Equals(obj as City); } public override int GetHashCode() { return this.Name.GetHashCode(); } } Fluent NH mapping is something like: public class PersonMap : ClassMap<Person> { public PersonMap() { Id(x => x.Id) .GeneratedBy.GuidComb(); References(x => x.City) .Cascade.SaveUpdate(); } } public class CityMap : ClassMap<City> { public CityMap() { Id(x => x.Id) .GeneratedBy.GuidComb(); Map(x => x.Name); } } Right now (with my current NHibernate mapping config), my consumer thread maintains a dictionary of cities and replaces their references in incoming person objects (otherwise NHibernate will see a new, non-cached City object and try to save it as well), and I need to do it for every produced Person object. Since I have implemented City class to behave like a value type, I hoped that NHibernate would compare Cities by value and not try to save them each time -- i.e. I would only need to do a lookup once per session and not care about them anymore. Is this possible, and if yes, what am I doing wrong here?

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  • non-copyable objects and value initialization: g++ vs msvc

    - by R Samuel Klatchko
    I'm seeing some different behavior between g++ and msvc around value initializing non-copyable objects. Consider a class that is non-copyable: class noncopyable_base { public: noncopyable_base() {} private: noncopyable_base(const noncopyable_base &); noncopyable_base &operator=(const noncopyable_base &); }; class noncopyable : private noncopyable_base { public: noncopyable() : x_(0) {} noncopyable(int x) : x_(x) {} private: int x_; }; and a template that uses value initialization so that the value will get a known value even when the type is POD: template <class T> void doit() { T t = T(); ... } and trying to use those together: doit<noncopyable>(); This works fine on msvc as of VC++ 9.0 but fails on every version of g++ I tested this with (including version 4.5.0) because the copy constructor is private. Two questions: Which behavior is standards compliant? Any suggestion of how to work around this in gcc (and to be clear, changing that to T t; is not an acceptable solution as this breaks POD types). P.S. I see the same problem with boost::noncopyable.

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  • PHP: Next Available Value in an Array, starting with a non-indexed value

    - by Erik Smith
    I've been stumped on this PHP issue for about a day now. Basically, we have an array of hours formatted in 24-hour format, and an arbitrary value ($hour) (also a 24-hour). The problem is, we need to take $hour, and get the next available value in the array, starting with the value that immediately proceeds $hour. The array might look something like: $goodHours = array('8,9,10,11,12,19,20,21). Then the hour value might be: $hour = 14; So, we need some way to know that 19 is the next best time. Additionally, we might also need to get the second, third, or fourth (etc) available value. The issue seems to be that because 14 isn't a value in the array, there is not index to reference that would let us increment to the next value. To make things simpler, I've taken $goodHours and repeated the values several times just so I don't have to deal with going back to the start (maybe not the best way to do it, but a quick fix). I have a feeling this is something simple I'm missing, but I would be so appreciative if anyone could shed some light. Erik

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  • Python: Access dictionary value inside of tuple and sort quickly by dict value

    - by Aquat33nfan
    I know that wasn't clear. Here's what I'm doing specifically. I have my list of dictionaries here: dict = [{int=0, value=A}, {int=1, value=B}, ... n] and I want to take them in combinations, so I used itertools and it gave me a tuple (Well, okay it gave me a memory object that I then used enumerate on so I could loop over it and enumerate gave ma tuple): for (index, tuple) in enumerate(combinations(dict, 2)): and this is where I have my problem. I want to identify which of the two items in the combination has the bigger 'int' value and which has the smaller value and assign them to variables (I'm actually using more than 2 in the combination so I can't just say if tuple[0]['int'] tuple[1]['int'] and do the assignment because I'd have to list this out a bunch of times and that's hard to manage). I was going to assign each 'int' value to a variable, sort it in a list, index the 'int' value in the list by 1, 2, 3, 4, 5 ... etc., then go back and access the dictionary I wanted by the int value and then assign the dictionary to a variable so I knew which was bigger. But I have a big list and lists and variable assignments are resource intensive and this is taking a long time (I had only a little bit of that written and it was taking forever to run). So I was hoping someone knew a fast way to do this. I actually could list out every possible combination of assignmnets using the if/thens but it's just like 5 pages of if/thens and assignments and is hard to read and manage when I want to change it. You've probably gathered this, but I"m new at programming. thx

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  • MYSQL KEY-VALUE PAIR Viability

    - by Amit
    Hi, I am new to mysql and I am looking for some answers to the follwoing questions: a) Can mysql community server can be leveraged for a key-value pair type database.?? b) Which mysql engine is best suited for a key-value pair type database ?? c) Is Mysql cluster a must for horizontal scaling of key-value based datastore or can it be acheived using MySQL replication?? d) Are there any docs or whitepapers for best practices when implementiing a kv datastore on mysql?? e) Are there any known big implementations other that friendfeed doing kv pair using MYSQL?? Would really appreciate some advise from all you Mysql gurus out there !! Thanks In Advance, Amit

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  • Bash script function return value problem

    - by Eedoh
    Hi to all. Can anyone help me return the correct value from a bash script function? Here's my function that should return first (and only) line of the file passed as an argument: LOG_FILE_CREATION_TIME() { return_value=`awk 'NR==1' $1` return return_value } And here's my call of that function in the other script: LOG_FILE_CREATION_TIME "logfile" timestamp=$? echo "Timestamp = $timestamp" I always get some random values with this code. If, for example, there's a value of 62772031 in the "logfile", I get Timestamp = 255 as an output. For some other values in the file, I get other random values as a return value, never the correct one. Any ideas?

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