programatically calculate text length [#2664548]

I have a multi-value double field (text field/text field).

for styling purpose I need the correct snippet of code that gets the character's count of the field which has the max length among the rest.

and depending on this value i can choose which css class is suitable for the whole multiple fields.

I mean I want to build my style upon the maximum length, so it will not break.
like if max length < 30 Chars , then select (short text class) <== taxonomy term
like if max length between 31-50 Chars , then select (medium text class)
like if max length > 50 Chars , then select (long text class)

With little php knowledge. but can I improve it. and with using this combination of two modules which can save a lot of time and effort :
1- Field Formatter CSS Class can change the css class for this field ( by selecting a taxonomy term which represent a css class)
2- CSS field formatters which can accept php snippets and can programmatically modify the CSS class term field (mention above #1)

- snippets are preferred , but other solutions are very welcome.

Comments

Comment #1

8 February 2016 at 12:05

theroyal created an issue. See original summary.

Comment #2

Chi CreditAttribution: Chi commented 8 February 2016 at 16:05

Status:

Active

» Needs review

That's fairly simple. You can override theme function and calculate field length there.

/**
 * Implements theme_double_field().
 */
function YOURTHEME_double_field($vars) {
  $element = $vars['element'];
  $settings = $element['#display']['settings'];

  if ($settings['style'] == 'link') {
    $output = l($element['#item']['first'], $element['#item']['second']);
  }
  elseif ($settings['style'] == 'simple') {
    $output = $element['#item']['first'] . $element['#item']['second'];
  }
  else {
    $class = $settings['style'] == 'block' ? 'clearfix' : 'container-inline';
    $output = '<div class="' . $class . '">';
    $length = drupal_strlen($element['#item']['first']) > 50 ? 'long' : 'short';
    $output .= '<div class="double-field-first text-' . $length . '">' . $element['#item']['first'] . '</div>';
    $length = drupal_strlen($element['#item']['second']) > 50 ? 'long' : 'short';
    $output .= '<div class="double-field-second text-' . $length . '">' . $element['#item']['second'] . '</div>';
    $output .= '</div>';
  }
  return $output;
}

Comment #3

theroyal CreditAttribution: theroyal commented 8 February 2016 at 13:42

is this snippet ready to use in
1- CSS Field formatters module ?
OR
2- I need to add it to the theme files ?

Comment #4

Chi CreditAttribution: Chi commented 8 February 2016 at 14:28

It should be placed to template.php file of your theme.

Comment #5

theroyal CreditAttribution: theroyal commented 8 February 2016 at 15:52

I really appreciate your help, and what i did is :

1- removed the (php) ? at the start and end.
2- replaced YOURTHEME with the theme name.
3- I added the code at the end of template

i have few questions:
1- Am I correct in the above steps? sorry its almost my 1st time to deal with code in drupal.
2- do I have to modify any other values in the code?
3- do I have to add a certain class in my style.css file? I mean did you add one or more in the code as an example?
4- I understand that this code will let me to avoid using the modules I mentioned in the issue. am I right?
5- does it count each subfield (this what is needed),
or the sum of sub1st+sub2nd (this is not what i mean)?

Comment #6

Chi CreditAttribution: Chi commented 8 February 2016 at 16:04

The function should be placed to your template.php file. It counts values of each subfield and provides CSS classes (text-long, text-short).

Comment #7

theroyal CreditAttribution: theroyal commented 8 February 2016 at 16:50

ok got it.
am so sorry for bothering

1- I want if the value is (long) I need to apply 2 classes not one:
a- subfield1-long-text (for all subfield1) so i can allign left for example.
b- subfield2-long-text (for all subfield2) so i can allign right for example.

2- what about if I want to have more selections like :
0-25 very-short
26-40 short
41-55 miduim
56-70 long
70 < very long

Comment #8

theroyal CreditAttribution: theroyal commented 8 February 2016 at 17:29

after re-look to the code, i noticed the following :

1- you are trating the subfield1 seperately than subfield2.
the needed is : check in both subfield1 and subfield2, find the any field which has the highest value in length.
lets say :
subfield1 | subfield2
20 | 15
31 | 34
11 | 99

so the value is (99)
then the we will set:
for subfield1: subfield1-very-long-class
for subfield2: subfield2-very-long-class

thats it

2- you are providing only 2 options long and short, while i need more options as mentioned in the earlier comment.

Comment #9

Chi CreditAttribution: Chi commented 8 February 2016 at 18:27

It's just an example of how it could be done. The code is very simple. You can modify it as you wish even you have never worked with PHP.

// Length of the first value.
$length = drupal_strlen($element['#item']['first']);

if ($length < 25)  {
  $class = 'very-short';
}
elseif ($length < 40) {
  $class = 'short';
}
else {
  $class = 'long';
}

Comment #10

theroyal CreditAttribution: theroyal commented 8 February 2016 at 19:07

yes the code looks great and simple
and I really appreciate your help.

but am afraid that the most important issue -which is doublefield related- is not clear yet,
maybe i didnt explain it very well.

I want to check all values and for both subfields,
example:
if i have 10 multivalues and each value has 2 subfields, then we have 20 subfields values here.
so the wanted is the highest length among these 20 subfields.
thats it.

maybe we need a loop here ?
if it needs a loop, then how to implement it with doublefield.