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• Rails - Create form fields dynamically and save them

  - by Frexuz

  Im building an ad-system where users can dynamically create 'fields' for each ad type. My models and example values: AdType: | id | name |----|----- | 1 | Hotel | 2 | Apartment AdOption: | id | ad_type_id | name |----|------------|----- | 1 | 1 | Star rating | 2 | 1 | Breakfast included? | 3 | 2 | Number of rooms AdValue: (Example after saving) | id | ad_id | ad_option_id | value |----|-------|---------------|------ | 1 | 1 | 1 (stars) | 5 | 2 | 1 | 2 (breakfast) | true Ad: (Example after saving) | id | description | etc.... |----|-----------------|-------- | 1 | very nice hotel | ....... So lets say I want to create a new ad, and I choose Hotel as the ad type. Then I need my view to dynamically create fields like this: (I'm guessing?) [Label] Star rating: [hidden_field :ad_id] [hidden_field :ad_option_id] [text_field :value] [Label] Breakfast included? [hidden_field :ad_id] [hidden_field :ad_option_id] [text_field :value] And also, how to save the values when the ad record is saved I hope this is understandable. If not just ask and I'll try to clarify.

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• WPF- Is there a way to stop TreeViewItems from becoming selected and activated when thier parent TreeViewItem is selected?

  - by Justin

  I have a control template for TreeViewItems and instead of showing the normal FocusVisualStyle I have a MultiTrigger set up like this: <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsSelected" Value="true"/> <Condition Property="IsSelectionActive" Value="true"/> </MultiTrigger.Conditions> <Setter Property="FontWeight" Value="Bold"/> </MultiTrigger> However this also causes the FontWeight to change to bold when a TreeViewItem's parent item is selected. Is there any way I can stop that from happening?

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• MVC2 html dropdownlist is invisible

  - by Deb

  I am just trying to populate a html.dropdown list using mvc2 in VS2008. But the control is not displayed at all. Here is my code public ActionResult Index() { ViewData["Time"] = DateTime.Now.ToString(); var mdl = new List<SelectListItem>(); mdl.Add(new SelectListItem { Value = "1", Text = "Module One" }); mdl.Add(new SelectListItem { Value = "2", Text = "Module Two" }); ViewData["moduleList"] = new SelectList(mdl,"Value", "Text"); return View("MainMenu"); } and here is the markup <div> <%Html.DropDownList("moduleList", (IEnumerable<SelectListItem>)ViewData["moduleList"]); %> </div> Where did i go wrong ?

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• How to create wordpress-like option table and get values for each row?

  - by Nacho

  Hi guys. I'm looking to create an options table in my db that makes every record a system option, so I can work with a little number of fields. My db has the following structure: 3 columns named id, name, and value The following data is inserted as an example: +--+-----------+--------------------------+ |id|name |value | +--+-----------+--------------------------+ | 1|uri |www.example.com | | 2|sitename |Working it out | | 3|base_folder|/folder1/folder2/ | | 4|slogan |Just a slogan for the site| +--+-----------+--------------------------+ That way I can include a large number of customizable system options very easily. The problem is that I don't know how to retrieve them. How do I get the value of uri and store it as a var? And better yet, how do I get, for exmaple, values of id 1 and 4 only without making a query each time? (I assume multiple queries are useless and a pretty ugly method.) I know the question is pretty basic but I'm lost here. I'd really appreciate your answer!

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• "Undefined index" when quoting array key

  - by Satish

  I have a form in index.php <?php echo '<form action="update_act.php" method="POST">'; echo '<input type="submit" name="'.$row['act_name'].'" value="edit"> echo </form> ?> Here $row['act_name'] is a value fetched from database. My update_act.php file is <?php echo "Old Activity Name : ".$_POST['$row[\'act_name\']']; ?> But I am getting an error Undefined index: $row['act_name'] in C:\wamp\www\ps\activity\update_act.php. I want to have different names for different submits but I am not able to get its value in another page. Is there any way for it?

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• starting .net application from command prompt is having issue when path is in SHORTNAME

  - by ioWint

  when we start our .net application using a double click on the explorer or from command prompt where your folder path is proper full name then there is no issue at all. But when you start it from command prompt with the path being a Shortname involving a ~ the application behaves weird. IF is entering condition though the condition evaluates to FALSE in quick watch. Accessing a value of a variable in quick watch and immediate window shows value. but when you use it to assign to another variable in code, it returns NULL / no value. another observation: when you attach Visual studio to debug the app, and when you go about "Set as next statement" visual studio is giving options to select which dll to work up on. i have never seen this prompt before!

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• Custom settings with PHP on Nginx

  - by miki

  I have multiple websites setup using Nginx and Apache, but when I try to add a vhost based PHP directive using fastcgi_param PHP_VALUE , the value get added to all of my vhosts. Checking the value of the PHP parameter from PHP-CLI remain the actual one for whole server. e.g. I used fastcgi_param PHP_VALUE "memory_limit=512M" for a domain based nginx config, but it will be propagated to all domains on server. The 'php -i | grep memory_limit' show 128M though Not sure what I am missing

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• Using True and False to select items to print

  - by user1753915

  I have a workbook that contains rows of information that needs to printed to a seperate worksheet in excel. I am trying to utilize a checkbox to indicate which items need to print and which items need to be skipped. The checkbox is located in column "A" and once checked and the macro ran, I want it to pick up the data in each cell of that particular row, transfer it a seperate worksheet (form), prompt and save the worksheet to pdf, clear the form, and then return to the main worksheet to continue until all rows have been checked. However, right now, my code is only looping through the very first "TRUE" statement and not continuing to the rest. Here is the code: Private Sub CommandButton1_Click() On Error GoTo ErrHandler: Dim i As Integer For i = 1 To 10 If ActiveSheet.OLEObjects("CheckBox" & i).Object.Value = False Then Else If ActiveSheet.OLEObjects("CheckBox" & i).Object.Value = True Then Call PrintWO Else End If Do Until ActiveSheet.OLEObjects("CheckBox" & i).Object.Value = 10 MsgBox "Nothing Selected to Print" Exit Do Exit Sub Loop End If Next i ErrHandler: End Sub

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• Check if key exists in $_SESSION by building index string

  - by Kim

  I need to check if a key exists and return its value if it does. Key can be an array with subkeys or endkey with a value. $_SESSION['mainKey']['testkey'] = 'value'; var_dump(doesKeyExist('testkey')); function doesKeyExist($where) { $parts = explode('/',$where); $str = ''; for($i = 0,$len = count($parts);$i<$len;$i++) { $str .= '[\''. $parts[$i] .'\']'; } $keycheck = '$_SESSION[\'mainKey\']' . $str; if (isset(${$keycheck})) { return ${$keycheck}; } // isset($keycheck) = true, as its non-empty. actual content is not checked // isset(${$keycheck}) = false, but should be true. ${$var} forces a evaluate content // isset($_SESSION['mainKey']['testkey']) = true } What am I doing wrong ? Using PHP 5.3.3.

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• best way to prgram php and mysql query

  - by air

  most of times in our pages we need to print only 1 field value of table in loop. for example <?php for($i=1;$i<=mysql_num_rows($result);$i++) { echo $row['name']; $sql1="select industry from table_industry where profid='".$row['prof']."'"; $result1=mysql_query($sql1); $row1=mysql_fetch_array($result1); echo $row1['industry']; ?> } ?> above is one PHP code just for example where we think that $row['prof'] carry value of profession ID and we print profession of each person. for example we have 5000+ record in table and above loop will execute for 5000+ times what will be the best way to print value of industry field from table table_industry Same code which i write above ? any other php code suggestion for faster execution and less use of resources? Thanks

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• IEnumerable not null but calling Count() results in Exception

  - by Draak

  I have code that's working beautifully on my development machine, but when deployed to the server is throwing null reference exception. So, I can't step through the code, but I've pinned down the culprit. But now I am puzzled. Here's the code. The question is below. Dim certs = From p In persons _ Select New Certificate( _ p.Value, _ New CertificateData.Seminar(thisEvent.Seminar.Name, _ thisEvent.StartDate.Value, _ thisEvent.EndDate.Value, _ thisEvent.Venue.City, _ thisEvent.Venue.State, _ New CertificateData.Instructor( _ staffMember.Name, _ staffMember.Titles, _ instrSignatPath))) _ With {.CertificateId = p.Key} lblMessage.Text = CStr(certs Is Nothing) lblMessage.Text = lblMessage.Text + "<br />" + CStr(certs.Count()) In the code above persons is a dictionary of custom class, and certs is of IEnumerable type. Now here's the quandary.. The first line that sets the label returns False, so certs is not null. But the second line throws an null reference exception. How is this possible?

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• ASP.NET MVC Filters: How to set Viewdata for Dropdown based on action paramter

  - by CRice

  Hi, Im loading an entity 'Member' from its id in route data. [ListItemsForMembershipType(true)] public ActionResult Edit(Member someMember) {...} The attribute on the action loads the membership type list items for a dropdown box and sticks it in viewdata. This is fine for add forms, and search forms (it gets all active items) but I need the attribute to execute BASED ON THE VALUE someMember.MembershipTypeId, because its current value must always be present when loading the item (i.e. all active items, plus the one from the loaded record). So the question is, what is the standard pattern for this? How can my attribute accept the value or should I be loading the viewdata for the drop down in a controller supertype or during model binding or something else? It is in an attribute now because the code to set the viewdata would otherwise be duplicated in each usage in each action.

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• Enums,use in switch case

  - by WPS

  Hi, I have an Enum defined which contains method return type like "String",Float,List,Double etc. I will be using it in switch case statements. For example my enum is public enum MethodType { DOUBLE,LIST,STRING,ARRAYLIST,FLOAT,LONG; } In a property file, I've key value pairs as follows. Test1=String Test2=Double In my code I'm getting the value for the key. I need to use the VALUE in Switch Case to Determine the Type and based on that I've to implement some logic. For example something like this switch(MethodType.DOUBLE){ case DOUBLE: //Dobule logic } Can someone please help me to implement this?

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• Problem with variable inside gsp

  - by xain

  Hi, I have a loop inside a gsp page, and I want to do a calculation on the fly, so I set a variable: <g:set var="total" value="0" /> And in the loop: <g:each in="${mob}" var="m"> ... <g:set var="total" value="${total+(m.q*m.sts.uf)}"/> ... </g:each> The "total" value does not correspond to the expected calculation. m.q is an integer, and m.sts.uf is a float. Any hints ? Thanks.

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• How do I pass a Yahoo Pipes item into a YQL query?

  - by Joe Shaw

  One common thing to want to do in the Yahoo Pipes YQL element is pass in a Pipes value to the YQL query. For example: select * from html.tostring where url='<someurl>' and xpath='//div[@id="foo"]' and you want to pass in a dynamic value for <someurl>. Let's say that it's an RSS feed item's URL called item.link. Attempting to simply replace the quoted someurl with item.link gives you this error: Invalid identifier item.link. me is the only supported identifier in this context How can I pass this value in?

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• Code Interaction with Quartz Composition

  - by Alberto MQO

  Hi, i have a Quartz Composition with a Cube, and X/Y/Z rotation inputs are published. On Interface Builder i made a QCView and a QCPatchController with the previous Quartz Composition loaded. In QCView the Patch Controller is binded, and the rotation published ports are binded too to three NSSlider, so when i change the value of the NSSlider's then the cube rotates. All this works fine, but i want to change the rotation values of the cube from the App Delegate on XCode. I tried to change the value of the NSSliders with IBoulets pointing to them, but this change doesnt apply to the cube, like it does when i change the Sliders directly with my mouse. What should i instanciate and/or how to access and change this Input_Ports.value throught the CQPatchController? Thank you very much for reading, i really need help!

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• Bizarre error in php

  - by Satish

  I have a form in index.php <?php echo '<form action="update_act.php" method="POST">'; echo '<input type="submit" name="'.$row['act_name'].'" value="edit"> echo </form> ?> Here $row['act_name'] is a value fetched from database. My update_act.php file is <?php echo "Old Activity Name : ".$_POST['$row[\'act_name\']']; ?> But I am getting an error Undefined index: $row['act_name'] in C:\wamp\www\ps\activity\update_act.php. I want to have different names for different submits but I am not able to get its value in another page. Is there any way for it?

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• tsql sum data and include default values for missing data

  - by markpirvine

  Hi, I would like a query that will shouw a sum of columns with a default value for missing data. For example assume I have a table as follows: type_lookup: id name 1 self 2 manager 3 peer And a table as follows data: id type_lookup_id value 1 1 1 2 1 4 3 2 9 4 2 1 5 2 9 6 1 5 7 2 6 8 1 2 9 1 1 After running a query I would like a result set as follows: type_lookup_id value 1 13 2 25 3 0 I would like all rows in type_lookup table to be included in the result set - even if they don't appear in the data table. Any help would be greatly appreciated, Mark

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• WithEvents LinkedList is it Impossible?

  - by serhio

  What is the optimal approach to a WithEvents Collection - VB.NET? Have you any remarks on the code bellow (skipping the Nothing verifications)? The problem is when I obtain the LinkedListNode(Of Foo) in a For Each block I can set myNode.Value = something, and here is a handlers leak... -Could I override the FooCollection's GetEnumerator in this case? -No. :( cause NotInheritable Class LinkedListNode(Of T) Class Foo Public Event SelectedChanged As EventHandler End Class Class FooCollection Inherits LinkedList(Of Foo) Public Event SelectedChanged As EventHandler Protected Overloads Sub AddFirst(ByVal item As Foo) AddHandler item.SelectedChanged, AddressOf OnSelectedChanged MyBase.AddFirst(item) End Sub Protected Overloads Sub AddLast(ByVal item As Foo) AddHandler item.SelectedChanged, AddressOf OnSelectedChanged MyBase.AddLast(item) End Sub ' ------------------- ' Protected Overloads Sub RemoveFirst() RemoveHandler MyBase.First.Value.SelectedChanged, _ AddressOf OnSelectedChanged MyBase.RemoveFirst() End Sub Protected Overloads Sub RemoveLast(ByVal item As Foo) RemoveHandler MyBase.Last.Value.SelectedChanged, _ AddressOf OnSelectedChanged MyBase.RemoveLast() End Sub ' ------------------- ' Protected Sub OnSelectedChanged(ByVal sender As Object, ByVal e As EventArgs) RaiseEvent SelectedChanged(sender, e) End Sub End Class

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• js object problem

  - by haltman

  Hi everybay! I use an object to check that a group of radio buttons have a precise value like set on "rule" object. Here is an example: arr = {a:"1", b:"1", c:"1", c:"2"}; //that's my object rule var arr2={}; //here I create my second array with charged value $("#form_cont input:checked").each(function() { arr2[$(this).attr("name")]=$(this).val(); }); //here I make the check for (k in arr2) { if (typeof arr[k] !== 'undefined' && arr[k] === arr2[k]) { $("#form_cont li[name$='"+k+"']").css('background-color', ''); } else { $("#form_cont li[name$='"+k+"']").css('background-color', 'pink'); } } The problem is when I have to check the "c" key I get last the one (2) and not the right value how that may e 1 or 2 thanks in advance ciao, h.

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• Oracle - Trigger to check constraint before insert

  - by user1816507

  i would like to create a simple trigger to check a stored variable from a table. if the value of the variable is '1', then approve the insertion else if the value of the variable is '2', then prompt error message. CREATE OR REPLACE TRIGGER approval BEFORE INSERT ON VIP REFERENCING OLD AS MEMBER FOR EACH ROW DECLARE CONDITION_CHECK NUMBER; BEGIN SELECT CONDITION INTO CONDITION_CHECK FROM MEMBER; IF CONDITION_CHECK = '2' THEN RAISE_APPLICATION_ERROR (-20000, ' UPGRADE DENIED!'); END IF; END; But this trigger disable all the entries even when the condition value is '1'.

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• Reducing unnecessary same values in Class member variables ....

  - by Freshblood

  class A { public int a; public int c; } i will create 10 instances from A.Then i will create 15 instances from A again... go on. first 10 instance will have same value for a variable and next 15 instances will have again same value for a.But I don't mean that both group has same values for a .Problem is create same a value 10 times in first group and 15 times in second group on memory unnecessary. What would be Best solution or solutions for reduce unnecessary datas in this situation?

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• Retrieve messageId of email being sent using ezcomponents ezcMailComposer

  - by Ian

  I'm trying to retrieve the messageId for the email being sent. I've tried explicitly setting the messageId just before sending, like this: $mail->setHeader('messageId',ezcMailTools::generateMessageId('example.com')); I then return the messageId after sending, like this: return $mail->getHeader('messageId'); ... but the counter portion of the Id is always off by one. For example, the return value will be: [email protected] ... but the actual messageId will be: [email protected] Returning the messageId header value without explicitly setting it first returns a blank string. How can I retrieve this value?

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• sfConfig::get is not returning constants defined in app.yml

  - by morpheous

  I have an interesting problem. I am using Symfony 1.3.2. I have defined some constants in project/apps/frontend/config/app.yml and project/config/app.yml When I use the constant (correct spelling) in a piece of code like this $test=sfConfig::get('app_foobar'); the variable $test is assigned a null value. This is what I have checked so far: CHECK: cache files generated? (YES) CHECK: Do the cache files (config_app.yml.php) in the cache directory contain the constants defined in the app.yml file (YES) CHECK: Constant names used in the code matches the array keys found in config_app.yml? (YES) At this stage, I have run out of ideas. I dont want to supply a default value as a hack, because when I need to change the value of the constant, I will have to replace this in potentially hundreds of instances (too error prone). Is there anything that I have missed?. What could be causing this?

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• How do I interpolate between points without going beyond them?

  - by user1774893

  I have data of variable lengths (reaching movements recorded in 2D) and want to create a function that will resample this data to a uniform length (500 samples). However, I want matlab to only resample between the maximum and minimum values given, without adding any additional distance. For instance, if I resample the matrix [1:1:10], the resampled matrix should have a minimum value of 1 and a maximum value of 10. So far I've tried the following: x = [1:1:10]; interp(x, 500 / length(x)); This, however, gives values above my maximum specified value of 10. Is there any way I can get matlab to resample/interpolate solely between two points, without extending beyond them?

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