codeigniter form validation and arrays as field names
I have a set of checkboxes in my HTML that look like t开发者_如何学Gohis,
div class="grid_7">
<fieldset class="age shadow_50">
<label class="legend">Age Group</label>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="child" />
<label>Child</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="30's" />
<label>30s</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="60's" />
<label>60's</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="teen" />
<label>Teen</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="40's" />
<label>40's</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="70's" />
<label>70's</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="20's" />
<label>20's</label>
</div>
<div class="formRow checkbox">
<input id="" type="checkbox" name="age[]" value="50's" />
<label>50's</label>
</div>
</fieldset>
</div>
I have set a validation rule in my controller that (in my mind) makes sure that a checkbox has been selected,
$this->form_validation->set_rules('age[]', 'age group', 'required|trim');
When testing this however I get an error message for ever checkbox with name age[] I just want to check that age[] is not empty.
How can I achieve this?
You cannot test age[]
like that, it is an array. There are a few ways to do this but what you did required
is not one of them.
You could use javascript or by running the age[]
value through your own custom callback function is one method.
Details for using arrays in CI are here:
https://ellislab.com/codeigniter/user-guide/libraries/form_validation.html#arraysasfields
If you do it the javascript route, you can use jQuery to iterate through your check boxes (use a class to link them) and just make sure that 1 of them is checked.
Old question but for anyone struggling to do this I believe you can do this by setting a rule on age
rather than age[]
, i.e.
$this->form_validation->set_rules('age', 'age group', 'fnName');
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