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  • MySQL floating point comparison issues

    - by Sharief
    I ran into an issue by introducing floating point columns in the MySQL database schema that the comparisons on floating point values don't return the correct results always. 1 - 50.12 2 - 34.57 3 - 12.75 4 - ...(rest all less than 12.00) SELECT COUNT(*) FROM `users` WHERE `points` > "12.75" This returns me "3". I have read that the comparisons of floating point values in MySQL is a bad idea and decimal type is the better option. Do I have any hope of moving ahead with the float type and get the comparisons to work correctly?

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  • php/mysql show data from chosen checkboxes

    - by Michael
    Hi. I have a table called FRUIT id type daysold 1 banana 5 2 apple 6 3 apple 4 4 peach 2 5 banana 6 What I would like is to have 3 checkboxes: Banana [ ] Apple [ ] Peach [ ] SUBMIT Then if I've only checked "Banana" and "Peach" the mysql output should only show me the rows that matches those two types. And the checkboxes should remain checked to highlight what was chosen. I can make the checkboxes but then that's about it really. I don't know how to properly get the info from the checkboxes and down to the WHERE argument in the MYSQL-code. Especially not with two types chosen. If it was just a dropdown menu with a single choice then I'd add the choice to the url and put WHERE type='$choice' - but I'm struggling with the multiple choices. I'm a bit of a novice at both php and mysql, so I'm a bit lost on this one.

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  • Foreign key pointing to different tables

    - by Álvaro G. Vicario
    I'm implementing a table per subclass design I discussed in a previous question. It's a product database where products can have very different attributes depending on their type, but attributes are fixed for each type and types are not manageable at all. I have a master table that holds common attributes: product_type ============ product_type_id INT product_type_name VARCHAR E.g.: 1 'Magazine' 2 'Web site' product ======= product_id INT product_name VARCHAR product_type_id INT -> Foreign key to product_type.product_type_id valid_since DATETIME valid_to DATETIME E.g. 1 'Foo Magazine' 1 '1998-12-01' NULL 2 'Bar Weekly Review' 1 '2005-01-01' NULL 3 'E-commerce App' 2 '2009-10-15' NULL 4 'CMS' 2 '2010-02-01' NULL ... and one subtable for each product type: item_magazine ============= item_magazine_id INT title VARCHAR product_id INT -> Foreign key to product.product_id issue_number INT pages INT copies INT close_date DATETIME release_date DATETIME E.g. 1 'Foo Magazine Regular Issue' 1 89 52 150000 '2010-06-25' '2010-06-31' 2 'Foo Magazine Summer Special' 1 90 60 175000 '2010-07-25' '2010-07-31' 3 'Bar Weekly Review Regular Issue' 2 12 16 20000 '2010-06-01' '2010-06-02' item_web_site ============= item_web_site_id INT name VARCHAR product_id INT -> Foreign key to product.product_id bandwidth INT hits INT date_from DATETIME date_to DATETIME E.g. 1 'The Carpet Store' 3 10 90000 '2010-06-01' NULL 2 'Penauts R Us' 3 20 180000 '2010-08-01' NULL 3 'Springfield Cattle Fair' 4 15 150000 '2010-05-01' '2010-10-31' Now I want to add some fees that relate to one specific item. Since there are very little subtypes, it's feasible to do this: fee === fee_id INT fee_description VARCHAR item_magazine_id INT -> Foreign key to item_magazine.item_magazine_id item_web_site_id INT -> Foreign key to item_web_site.item_web_site_id net_price DECIMAL E.g.: 1 'Front cover' 2 NULL 1999.99 2 'Half page' 2 NULL 500.00 3 'Square banner' NULL 3 790.50 4 'Animation' NULL 3 2000.00 I have tight foreign keys to handle cascaded editions and I presume I can add a constraint so only one of the IDs is NOT NULL. However, my intuition suggests that it would be cleaner to get rid of the item_WHATEVER_id columns and keep a separate table: fee_to_item =========== fee_id INT -> Foreign key to fee.fee_id product_id INT -> Foreign key to product.product_id item_id INT -> ??? But I can't figure out how to create foreign keys on item_id since the source table varies depending on product_id. Should I stick to my original idea?

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  • Remove trailing slash using redirect directive in vhost

    - by Choy
    I have an issue where urls that end in a "/" after a file name causes css/js to break. I.e., http://www.mysite.com/index.php/ <-- breaks http://www.mysite.com/ <-- OK, only breaks for file names To fix, I tried adding a Redirect 301 directive in the vhost file as such where I'm checking to see if there's an extension with a slash after it: <VirtualHost *:80> ServerName mysite.com Redirect 301 ^(.*?\..+)/$ http://mysite.com/$1 </VirtualHost> The redirect appears to do nothing. Is this an issue with my implementation or is what I'm trying to accomplish not possible with a Redirect 301 in the vhost file?

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  • LINQ to sql return group by results from method

    - by petebob796
    How do I create a method to return the results of a group by in LINQ to sql such as the one below: internal SomeTypeIDontKnow GetDivisionsList(string year) { var divisions = from p in db.cm_SDPs where p.acad_period == year group p by new { p.Division } into g select new { g.Key.Division }; return divisions; } I can't seem to define a correct return type. I think it is because it's an anonymous type but haven't got my head around it yet. Do I need to convert it to a list or something? The results would just be used for filling a combo box.

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  • How to persist non-trivial fields in Play Framework

    - by AlexR
    I am trying to persist complex objects using Ebeans in Play Framework (2.03). In particular, I've created a class that contains a field of type weka.classifier.Classifier (Weka is a popular machine learning library - see http://weka.sourceforge.net/doc/weka/classifiers/Classifier.html). Classifier implements Serializeable so I hoped that I can get away with something like @Entity @Table(name = "classifiers") public class ClassifierData extends Model { @Id public Long id; public Classifier classifier; } However, the Evolutions script suggests the following database structure: create table classifiers ( id bigint auto_increment not null, constraint pk_classifiers primary key (id)) ) In other words, it ignores the field of type Classifier. (The database is MySQL if it makes any difference) What should I do to store complex serializeable objects using Ebean/Evolutions/PlayFramework?

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  • Possible to add javascript to Zend_Form_Element_Radio?

    - by Stepppo
    Ultimately, I'd like my Zend Form to render this HTML: <p>Do you have any documents to upload?</p> <p>Yes <input type="radio" value="Yes" name="uploadChoice" onClick="showTable()">&nbsp;&nbsp;No <input type="radio" value="No" name="uploadChoice" onClick="hideTable()" checked></p> Here's what I have in my Zend_Form: //create radio buttons $uploadQuestion = new Zend_Form_Element_Radio('upLoadQuestion'); $uploadQuestion->setLabel('Do you have any documents to upload?') ->addMultiOptions(array( 'yes' => 'Yes', 'no' => 'No' )) ->setSeparator(' '); The problem I'm running into is how to add the onClick="showTable()" and onClick="hideTable()" elements to their respective radio buttons. In the alternative, I could rework the javascript and add something like onClick="toggleTable()" to the radio buttons if I can't add something different to each of the radio buttons. But, will Zend let me do that?

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  • C++ Stringstream int to string but returns null

    - by jumm
    Hi below is my function: string Employee::get_print(void) { string out_string; stringstream ss; ss << e_id << " " << type << endl; out_string = ss.str(); return out_string; } e_id and type are int and they contain values from the class Employee. But when I pass them into the stringstream they just clear the string when I try to out put it. But if I don't have a int in the ss << "Some text" << endl; this output fine. What am I doing wrong =S

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  • Installing qt headers and libraries

    - by ant2009
    Hello, Ubuntu 9.10 2.6.31-20-generic I am trying to install some software. When I do the ./configure. I get the following error: checking for Qt... configure: error: Qt (>= Qt 3.0.2) (headers and libraries) not found. Please check your installation! So I install the following package thinking this would solve the problem. sudo apt-get install libqt4-dev I was thinking that the libqt4-dev would install the headers and libraries. However, I am still getting the same problem. Any ideas? Many thanks,

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  • PUT parameters not working in python / google app engine

    - by magegu
    hi, i'm working on a simple RESTful webservice with python with the webapp framework on the google app engine. Basically i'm sending all request via AJAX/jquery - for POST it works like a charm, but when I'm sending data with PUT, the parameters are empty / not processed. this is my PUT: $.ajax({ type: "PUT", url: "/boxes", data: { name: this.name, archived: this.archived }, success: function(msg){ } }); firebug saids i'm putting: Parameter application/x-www-form-urlencoded archived false name 123112323asdasd but using this python code: from google.appengine.ext import webapp from google.appengine.ext.webapp import util, template from google.appengine.ext import db from google.appengine.api.datastore_types import * from django.utils import simplejson as json import cgi import datetime class BoxHandler(webapp.RequestHandler): def post(self): #working print "test" self.response.out.write(self.request.get("name")) def put(self): print "test" #not working self.response.out.write(self.request.get("name")) will just return test Status: 200 OK Content-Type: text/html; charset=utf-8 Cache-Control: no-cache Expires: Fri, 01 Jan 1990 00:00:00 GMT Content-Length: 0 so .. hm, is there anything i'm missing here? cheers, Martin

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  • Set environment variable in Ubuntu

    - by Junho Park
    In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6. I open a terminal and type in the following to set the JAVA_HOME environment variable: export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun And in that same terminal window, I type the following to check that the environment variable has been updated: echo $JAVA_HOME And I see /usr/lib/jvm/java-1.5.0-sun which is what I'm expecting to see. In addition, I modify ~/.profile and set the JAVA_HOME environment variable to /usr/lib/jvm/java-1.5.0-sun. And now for the problem--when I open a new terminal window and I check my JAVA_HOME environment variable by typing in echo $JAVA_HOME I see that my JAVA_HOME environment variable has been reverted back to Java 6. When I reboot my machine (or log out and back in, I suppose) the JAVA_HOME environment variable is set to Java 5 (presumably because of the modification I made in my ~/.profile). Is there a way around this so that I can change my JAVA_HOME environment without having to log out and back in (AND make that environment variable change stick in all new terminal windows)?

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  • IRC Services with failover support?

    - by insertjokehere
    I run a single server (call it 'server A') IRC 'network', and thank to the generosity of some friends, I have been given a second server ('server B') that I can run an IRCd on in order to provide redundancy in case server A crashes. This is fine, I can set up a round-robin DNS with the servers linked. The problem I have is what to do about services? Does anyone know of a way to get the services to 'fail over' in case of a server failure? Eg, Server A starts off running the services, but suddenly crashes. Server B detects this and starts its own copy of the services (ideally with the same configuration and data as the services on Server B) One solution that comes it mind is to write a bot that each server runs, that sit in a channel periodically checking if the bot from the other server is in the channel. If it is, then all is well. If not, then failover. I would prefer not to have to code this myself though We are currently using Unreal IRCd and Anope services on Linux

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  • Problems with webcame

    - by Murtaza
    My friends is using windows 8.1 and he has a webcam. He says it is working very well even without installing drivers. Webcam is A4tech - PK-331F. I asked for this webcam for use. I plugged that that webcam and windows detected it and installed drivers automatically. Then I opened Skype for checking webcam. I got massage on top of Skype that "your webcam has microphone" when I clicked over it, it directed me to sound settings where I microphone of webcam was working. I went to videos settings but webcam wasn't listed their. As you can see in image. Webcam is listed in device manager but isn't listed in Skype. I am also using windows 7 professional. Any idea why it is happening?

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  • What is the default value for Empty Temporary Internet Files when browser is closed in IE8?

    - by schellack
    We have four different machines that all have "Empty Temporary Internet Files when browser is closed" set to true (checked) in IE8's Internet Options (located under the Security section in the Advanced tab). No one remembers checking that checkbox to turn on the setting. What is the default value supposed to be? I'm specifically interested in Windows 7 and Windows XP. I have run rsop.msc on one of the corporate machines—3 of the 4 are members of a corporate network/domain—and see this under User Configuration, which makes the current scenario seem even stranger: The Local Group Policy Editor (gpedit.msc) also shows the Configure Delete Browsing History on exit setting to be Not configured (under Computer ConfigurationAdministrative TemplatesWindows ComponentsInternet ExplorerDelete Browsing History).

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  • Php file outputting javascript for include as a JS file - need to restrict so its not opened in a browser window

    - by Ali
    Hi guys, I'm storing configuration details in a database which I need to use in javascript. I'm accessing all this using php and instead of outputting all the details into inline javascript code on the main page I've instead created a php file that outputs content type javascript and refernce it in my main page as an external javascript file. I want to set it up so that it can't be viewed in a browser window i.e : <script type="text/javascript" src="phpFileThatDoesJS.php" ></script> should work but typing www.mysite.com/phpFileThatDoesJS.php in the browser shouldn't EDIT ========== The thing is that I have to edit a script that for some oddball reason stores the username and password of a user in a javascript Object and outputs it within script tags. I have to set it up so that this is not viewable by a simple view source action. Thats why I thought of referencing it as an external javascript. Isnt there any htaccess tricks that I could use?

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  • Hiding "Syntax OK" from apache2ctl output

    - by Oscar Barrett
    I am checking whether a particular apache module is installed using apache2ctl -M. When listing the modules, apache runs a syntax check on the configuration files which prints out "Syntax OK" if everything is fine. However, this message doesn't seem to be coming from STDOUT or STDERR as it shows even if all output is redirected to /dev/null. i.e. $ sudo apache2ctl -M Loaded Modules: core_module (static) log_config_module (static) ... Syntax OK $ sudo apache2ctl -M >/dev/null Syntax OK How is this being outputted, and is it possible to hide?

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  • lighttpd silently stops logging

    - by Max Cantor
    I'm on a Slicehost 256MB VPS with Ubuntu 9.04 (Jaunty). lighttpd is the only web server process running; it listens on port 80. My lighttpd.conf can be found here. I'm using Ubuntu's default logrotate setup for lighty. At seemingly random times, lighttpd will stop logging. It is not correlated with log rotation--that is, the errors do not occur when logrotate kicks in. What happens is, I will verify that the server is serving files by hitting a URL with my browser, and I will verify that it is not logging by checking access.log and seeing that the GET request I just made is not there. Using init.d to restart the process starts logging again, without truncating or rotating the log file. That is, new requests will be logged at the end of the existing access.log file. There are no cron jobs running on this box. Any ideas?

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  • IE8/IE7/IE6/IE5 on WinXP Use The Wrong Certificate

    - by Marco Calì
    For some reason IE8/IE7/IE6/IE5 on Windows XP, instead to use the certificate that is listed on the nginx website config, is using another certificate that is used from other websites. Checking the nging config file for the website everything is fine. A confirm of this is that all the other browsers (Chrome/Firefox/Safari/IE9) are using the correct certificate. This is the nginx configuration for the app: server { listen 80; listen 443 ssl; server_name mydomain.com; ssl_certificate /root/certs/mydomain.com/mydomain.bundle.crt; ssl_certificate_key /root/certs/mydomain.com/mydoamin.key; access_log /opt/webapps/cs_at/logs/access.log; location / { add_header P3P 'CP="CAO PSA OUR"'; proxy_pass http://127.0.0.1:20004; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header X-Real-IP $remote_addr; } }

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  • jQuery Plugin with $.getJSON Returning undefined?

    - by Oscar Godson
    Inside of a jQuery plugin I made I have: $.getJSON(base_url,{ agenda_id:defaults.id, action:defaults.action+defaults.type, output:defaults.output },function(json){ return json; }); And in a separate JS file (yes, it comes after the plugin): json = $('#agenda-live-preview').agenda({action:'get',type:'agenda',output:'json'}); alert(json[0].agenda_id); If i do the above $.getJSON and put an alert inside of the $.getJSON it works and returns "3", which is correct. If I do it like the json=$('#agenda-live-preview').agenda(...)... it returns undefined. My JSON is valid, and the json[0].agenda_id is correct also, I know it's in a callback, so how do I get the stuff inside of a callback in a function return?

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  • Dynamically added script causes problems

    - by Derk
    I'm loading an html snippet via ajax to append to a div (I use jquery). A part of the html loaded with ajax looks like this: <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript"> var options = { mapTypeId : google.maps.MapTypeId.TERRAIN } alert('test'); var map = new google.maps.Map(document.getElementById('map-canvas'), options); </script> Then this is appended with contentBox.append(data); The problem is that this causes a black page in Firefox which keeps loading. In other browsers it seems that the code is not executed at all. Is there a solution for this?

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  • Is there any way to modify a column before it is ordered in MySQL?

    - by George Edison
    I have a table with a field value which is a varchar(255). The contents of the field can be quite varied: $1.20 $2994 $56 + tax (This one can be ignored or truncated to $56 if necessary) I have a query constructed: SELECT value FROM unnamed_table ORDER BY value However, this of course uses ASCII string comparison to order the results and does not use any numerical type of comparison. Is there a way to truly order by value without changing the field type to DECIMAL or something else? In other words, can the value field be modified ('$' removed, value converted to decimal) on the fly before the results are sorted?

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  • jQuery AJAX get request - cannot see returned data

    - by Wes
    I think I am missing something obvious here, but I can't figure it out. I expect the following HTML to alert a response from the server. But, the alert is empty. I can see in Wireshark that the expected response is coming back to me from the server. Why is it not populated in the data variable? <html> <head> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> </head> <body> <script type="text/javascript"> $.get("http://www.geocommunicator.gov/TownshipGeocoder/TownshipGeocoder.asmx/GetTRS", {'Lat': 41, 'Lon': -93, 'Units': 'eDD', 'Datum': ''}, function(data) { alert('data:'+data); }); </script> </body> </html>

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  • Jquery: how to trigger td a when tr is clicked

    - by Poku
    Hey, I have a table where the first td in the trs contains a link. I want this anchor to be triggered (clicked) no matter where i click in the containing tr. I have read and tried alot of recents post and suggentions on this topic but i can't get this to work. I tried the trigger() and triggerHandle() functions, but it does not trigger the anchor click that i want. There must be others who have had the need to trigger a anchor click when a tr is clicked, so that the user doesn't have to click the tds anchor link. It sure is a nice UI feature if its possible? Here is the code i have tried: <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <script type="text/javascript" src="javascripts/jquery-1.4.2.js"></script> <script type="text/javascript" charset="utf-8"> /* Initialise the table with the required column sorting data types */ jQuery(document).ready(function () { jQuery("#rowClick tr").click(function (e) { jQuery("#clickevent", this).trigger("click"); }); }); </script> </head> <body id="dt_example"> <table id="rowClick"> <thead> <tr> <th style="width: 30px">id</th> <th style="width: 200px">navn</th> </tr> </thead> <tbody> <tr> <td><a href="datatabletext.asp?test=1" id="clickevent">1</a></td> <td>Jesper</td> </tr> <tr> <td><a href="datatabletext.asp?test=2" id="clickevent">2</a></td> <td>Bjarne</td> </tr> <tr> <td><a href="datatabletext.asp?test=3" id="clickevent">3</a></td> <td>Søren</td> </tr> </tbody> </table> </body>

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  • Methodology to understanding JQuery plugin & API's developed by third parties

    - by Taoist
    I have a question about third party created JQuery plug ins and API's and the methodology for understanding them. Recently I downloaded the JQuery Masonry/Infinite scroll plug in and I couldn't figure out how to configure it based on the instructions. So I downloaded a fully developed demo, then manually deleted everything that wouldn't break the functionality. The code that was left allowed me to understand the plug in much greater detail than the documentation. I'm now having a similar issue with a plug in called JQuery knob. http://anthonyterrien.com/knob/ If you look at the JQuery Knob readme file it says this is working code: <input type="text" value="75" class="dial"> $(function() { $('.dial') .trigger( 'configure', { "min":10, "max":40, "fgColor":"#FF0000", "skin":"tron", "cursor":true } ); }); But as far as I can tell it isn't at all. The read me also says the Plug in uses Canvas. I am wondering if I am suppose to wrap this code in a canvas context or if this functionality is already part of the plug in. I know this kind of "question" might not fit in here but I'm a bit confused on the assumptions around reading these kinds of documentation and thought I would post the query regardless. Curious to see if this is due to my "newbi" programming experience or if this is something seasoned coders also fight with. Thank you. Edit In response to Tyanna's reply. I modified the code and it still doesn't work. I posted it below. I made sure that I checked the Google Console to insure the basics were taken care of, such as not getting a read-error on the library. <!DOCTYPE html> <meta charset="UTF-8"> <title>knob</title> <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/hot-sneaks/jquery-ui.css" type="text/css" /> <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.js" charset="utf-8"></script> <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.min.js"></script> <script src="js/jquery.knob.js"></script> <div id="button1">test </div> <script> $(function() { $("#button1").click(function () { $('.dial').trigger( 'configure', { "min":10, "max":40, "fgColor":"#FF0000", "skin":"tron", "cursor":true } ); }); }); </script>

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