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MDL-37339 Administration: Unique custom profile should not be checked if it's empty.
Currently we have two options for custom profile fields 'Unique' and 'Required' If value s not entered for unique and not required field then we should allow duplicate empty values. If value is entered then we should check for unique input. In case field is unique and required then it should be always checked as required field can't be empty.
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@ -129,9 +129,19 @@ class profile_field_base {
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global $DB;
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$errors = array();
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/// Check for uniqueness of data if required
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if ($this->is_unique()) {
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$value = (is_array($usernew->{$this->inputname}) and isset($usernew->{$this->inputname}['text'])) ? $usernew->{$this->inputname}['text'] : $usernew->{$this->inputname};
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// Get input value.
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if (isset($usernew->{$this->inputname})) {
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if (is_array($usernew->{$this->inputname}) && isset($usernew->{$this->inputname}['text'])) {
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$value = $usernew->{$this->inputname}['text'];
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} else {
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$value = $usernew->{$this->inputname};
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}
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} else {
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$value = '';
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}
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// Check for uniqueness of data if required.
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if ($this->is_unique() && (($value !== '') || $this->is_required())) {
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$data = $DB->get_records_sql('
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SELECT id, userid
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FROM {user_info_data}
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