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TOPIC: New Data Type! Simple Calculation

New Data Type! Simple Calculation 27 Apr 2012 23:39 #2172

edwardcox
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OMG, this one just came to mind and I guess it's mainly for 'dummies' like me (i.e. real entry level Cook users LOL).

A new Data Type (or Wizard): Simple Calculation. Allowing as a start 2 existing Fields to be selected AND an Operand (i.e. Addition, Subtraction, Multiplication, Divide).

So that a beginner can include simple math calculations in their Layouts.

i.e.

Value 1: Field number_of_days (int)
Value 2: Field amount (int xx.xx)
Operand: MULTIPLY
Simple Calculation Field: Result (Value 1 multiplied by Value 2)

I think that might put the idea across. Please ask if unclear.

To me this would be a fantastic addition.

Thank you,

Edward.

Passionate Joomla! Developer and J-Cook pro evangelist.
www.jcombuilder.com - we build great Joomla!® Components so you don't have to.

Last Edit: 03 Oct 2012 13:46 by admin.

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The following user(s) said Thank You: VeCrea, Tomaselli

Re: New Data Type! Simple Calculation 28 Apr 2012 13:14 #2174

VeCrea Offline Platinum Member Absolute JCook fan Posts: 473 Thank you received: 100 Karma: 30	+1 So easy to add in code afterwards, but why not have a wizard for it...
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Re: New Data Type! Simple Calculation 06 Sep 2012 13:45 #3393

LJ01 Offline Senior Member Posts: 78 Thank you received: 2 Karma: 0	how the 'so easy '? LJ
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Re: New Data Type! Simple Calculation 06 Sep 2012 14:04 #3394

VeCrea Offline Platinum Member Absolute JCook fan Posts: 473 Thank you received: 100 Karma: 30	Well you simply use the math operators of php... $a + $b or things like that
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Re: New Data Type! Simple Calculation 06 Sep 2012 16:08 #3396

LJ01 Offline Senior Member Posts: 78 Thank you received: 2 Karma: 0	yes but how to register the result in a field ? LJ
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Re: New Data Type! Simple Calculation 06 Sep 2012 16:09 #3397

VeCrea Offline Platinum Member Absolute JCook fan Posts: 473 Thank you received: 100 Karma: 30	In a collection or one-item view ?
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Re: New Data Type! Simple Calculation 06 Sep 2012 16:12 #3398

LJ01 Offline Senior Member Posts: 78 Thank you received: 2 Karma: 0	this is the code for a field <?php echo JDom::_('html.form.input.text', array( 'dataKey' => 'year', 'dataObject' => $this->climatpraticitem, 'size' => "5", 'validatorHandler' => "numeric" )); ?> i want to include the result variable '$variable' how to include it automaticly
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Re: New Data Type! Simple Calculation 06 Sep 2012 16:15 #3399

VeCrea
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$a = JDom::_('html.form.input.text', array(
					'dataKey' => 'year',
					'dataObject' => $this->climatpraticitem,
					'size' => "5",
					'validatorHandler' => "numeric"
					));
$b = JDom::_('html.form.input.text', array(
					'dataKey' => 'year',
					'dataObject' => $this->otherfield,
					'size' => "5",
					'validatorHandler' => "numeric"
					));
$result = $a + b;
echo $result;

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Re: New Data Type! Simple Calculation 06 Sep 2012 16:17 #3400

LJ01 Offline Senior Member Posts: 78 Thank you received: 2 Karma: 0	yes but i want that the result registering in a field existing in my bd LJ
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Re: New Data Type! Simple Calculation 06 Sep 2012 16:21 #3401

VeCrea
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I think that better coders than me would have to answer this, but i don't think there's any need in storing the result of two db fields in a third field...
Anyway, if you want this, i think you have to add a field to your table manually via phpmyadmin, then modify the model file, or the corresponding table field in the administrator part of your component.
That's my 2 cents, but i believe Admin will have a more definitive approach on this.

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Re: New Data Type! Simple Calculation 06 Sep 2012 17:05 #3402

admin Offline Administrator Chef Posts: 3711 Thank you received: 984 Karma: 140	@VeCrea, Your solution is incorrect. JDom return strings, so it is not only incorrect but also dangerous. Why always searching for complexity ? echo $this->climatpraticitem->year + $this->otherfield->year;
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Re: New Data Type! Simple Calculation 06 Sep 2012 17:06 #3403

admin Offline Administrator Chef Posts: 3711 Thank you received: 984 Karma: 140	... And if you want this result stored in DB, go in your table and write this operation before to save in table.
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Re: New Data Type! Simple Calculation 06 Sep 2012 17:46 #3405

LJ01 Offline Senior Member Posts: 78 Thank you received: 2 Karma: 0	i want to stored my result '$result' in the field 'calcul' that existing in my db where put the code before save, what file ? lj
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Re: New Data Type! Simple Calculation 06 Sep 2012 17:58 #3407

VeCrea Offline Platinum Member Absolute JCook fan Posts: 473 Thank you received: 100 Karma: 30	I didn't even know it was possible to write it like this...
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Re: New Data Type! Simple Calculation 06 Sep 2012 18:09 #3408

admin Offline Administrator Chef Posts: 3711 Thank you received: 984 Karma: 140	1. open the concerned table php file 2. go to the check() function. (Executed everytime before to save) 3. Write all the new values coming from the result of your calcul That's it PS : As you know, I prefer you try to find by yourself, and understand how the MVC works.
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