DZone Snippets: field code

PHP: Create a SELECT input field

cornerblue (CornerBLUE, Inc.) — Wed, 19 Sep 2007 08:46:29 GMT

Creates a SELECT input field with an optional parameter to preselect an item



function selectfield($optionsarray, $selected = "") {

  $returnval = "";

  foreach ($optionsarray as $field=>$value) {

    if ($field == $selected) {

      $returnval .= "\n";

    } else {

      $returnval .= "\n";

    }

  }

  

  return $returnval;

}

Actionscript _Text Class

bgidge (Bryan Gidge) — Tue, 13 Feb 2007 20:17:40 GMT

Useful functions for adding dynamic text fields. Don't forget, you have to add the font of choice into the main movie Library for this to work (Library Panel Menu > New Font). The name you give the font is the string that you pass to the getTextFormat function for the "font" parameter. Setup your font styles with getTextFormat, setup your dynamic text box with getTextField, and then add text to the text box with appendTextField.



dynamic class _Text {

	static function getTextFormat(font:String,size:Number,color:Number,leading:Number,url:String,target:String){

		var fmt:TextFormat = new TextFormat();

		fmt.font = font;

		fmt.kerning = true;

		fmt.leading = (leading != undefined && leading != null) ? leading : 0;

		fmt.bold = false;

		fmt.size = (size != undefined && size != null) ? size : 11;

		fmt.color = (color != undefined && color != null) ? color : 0x000000;



		if (url != undefined && url != null) {

			fmt.url = url;

			fmt.target = (target != undefined && target != null) ? target : "_self";

		}

		return (fmt);

	}

	

	static function getTextField(targetMC,targetDepth,txtFieldName,x,y,w,h,txtObj){

		var targetDepth = (targetDepth != undefined && targetDepth != null) ? targetDepth : targetMC.getNextHighestDepth();

		var txtfld = targetMC.createTextField(txtFieldName, targetDepth, x, y, w, h);

		txtfld.antiAliasType = (txtObj.antiAliasType) ? txtObj.antiAliasType : "advanced";

		txtfld.sharpness = (txtObj.sharpness) ? txtObj.sharpness : -60;

		txtfld.thickness = (txtObj.thickness) ? txtObj.thickness : -100;

		txtfld.embedFonts = (txtObj.embedFonts) ? txtObj.embedFonts : true;

		txtfld.selectable = (txtObj.selectable) ? txtObj.selectable : false;

		txtfld.html = (txtObj.html) ? txtObj.html : true;

		txtfld.multiline = (txtObj.multiline) ? txtObj.multiline : true;

		txtfld.autoSize = (txtObj.autoSize) ? txtObj.autoSize : "left";

		

		if (txtObj.htmlText) txtfld.htmlText = txtObj.htmlText;

		if (txtObj.txtFormat) txtfld.setTextFormat(txtObj.txtFormat);

		

		if (txtObj.wordWrap == undefined || txtObj.wordWrap == null) txtfld._width = txtfld.textWidth + 10;

		else txtfld.wordWrap = txtObj.wordWrap;

		return txtfld;

	}

	

	static function appendTextField(txtfld,txtfrmt,txt){

		var beginIndex:Number = txtfld.htmlText.length;

		txtfld.setNewTextFormat(txtfrmt);

		txtfld.replaceText(beginIndex,beginIndex,txt);

	}

}

Putting the errors in the right place

Mickael (Mickael) — Thu, 01 Feb 2007 14:06:27 GMT

The idea is to display the error near the field instead of in global area at the top of the page.
Simple… first go into your view and delete the



error_messages_for ‘object’

Then stick this in your application helper.

# application_helper.rb
def error_for(object, method = nil, options={})
if method
err = instance_variable_get("@#{object}").errors.on(method).to_sentence rescue instance_variable_get("@#{object}").errors.on(method)
else
err = @errors["#{object}"] rescue nil
end
options.merge!(:class=>’fieldWithErrors’,
:id=>"#{[object,method].compact.join(’_')}-error",
:style=>(err ? #{options[:style]}":"#{options[:style]};display: none;")
)
content_tag("p",err || "", options )
end

Then in your form view, add an ‘error_for’ call wherever you need one…



# _form.rhtml

  Name

  <%= text_field ‘code_project’, ‘name’  %>

  <%= error_for ‘code_project’, ‘name’ %>

If the model fails a validation test, then it will show the message right next to the field that caused the validation problem.
Also note that if you define an instance variable called @errors containing a hash of field_names and messages, they will also be used. This is handy for those form fields that don’t correspond to a model attribute.

Java - PasswordField

whitetiger () — Wed, 17 Jan 2007 02:20:15 GMT



JPasswordField passField = new JPasswordField(10);

passField.setEchoChar('*');

evaluate form fields with php

ovhaag (Oliver Haag) — Sun, 17 Sep 2006 16:24:10 GMT

// contains all types of fields

// of special interest are selection boxes.
// They can return an array.
// Here is a quick evaluation with implode().







$hidden_value_1 = $_POST['hval1'];

$hidden_value_2 = $_POST['hval2'];



$short_text	= $_POST['stext'];

$password	= $_POST['pwd'];

$long_text	= $_POST['ltext'];



$selected_option = $_POST['optn'];

$radio_selection = $_POST['radsel'];



$check_selection = $_POST['checksel'];

$check_text = implode(', ',$check_selection);

?>









Kurze Anzeige (show values)

Versteckte Werte: , 


Kurzer Text und Passwort: , 


Langer Text:  


Option: 


Radio-Auswahl: 


CheckBox-Auswahl: 



Ein Formular (form)





















Kurzer Text und Passwort 












Langer Text 


<br />Optionale Textvorbelegung (optional text presetting): kann bei
<br />mehrzeiligen Textfeldern lang sein,da genügend Platz vorhanden ist.
<br />







Option 
 







Radio-Auswahl 


Die erste Radiowahl


Die zweite Radiowahl


 Die dritte Radiowahl





CheckBox-Auswahl 


Die erste Checkwahl


Die zweite Checkwahl


Die dritte Checkwahl

Use background color to show error fields instead of wrapping them in a div

canadaduane (Duane Johnson) — Thu, 13 Apr 2006 22:21:47 GMT

Using the default rails field_error_proc may lead to some layout headaches--your form looks perfect until, uh-oh, someone entered an invalid email address and Rails adds a fieldWithError-styled div that wraps around the problem field.

While this works in many cases, some pixel-perfect layouts may not be able to tolerate the 2-pixel padding around the text_field caused by the red border. An alternative is to change the background color of the offending field.

Include the following code in environment.rb (or use a "require" like I do):



ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|

  error_style = "background-color: #ffff80"

  if html_tag =~ /<(input|textarea|select)[^>]+style=/

    style_attribute = html_tag =~ /style=['"]/

    html_tag.insert(style_attribute + 7, "#{error_style}; ")

  elsif html_tag =~ /<(input|textarea|select)/

    first_whitespace = html_tag =~ /\s/

    html_tag[first_whitespace] = " style='#{error_style}' "

  end

  html_tag

end

See my blog.inquirylabs.com for more Rails stuff.