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/* $Id: indexes.js,v 1.1 2005/11/23 19:10:30 nijel Exp $ */ |
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/** |
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* Ensures a value submitted in a form is numeric and is in a range |
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* |
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* @param object the form |
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* @param string the name of the form field to check |
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* @param integer the minimum authorized value |
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* @param integer the maximum authorized value |
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* |
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* @return boolean whether a valid number has been submitted or not |
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*/ |
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function checkFormElementInRange(theForm, theFieldName, message, min, max) |
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{ |
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var theField = theForm.elements[theFieldName]; |
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var val = parseInt(theField.value); |
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if (typeof(min) == 'undefined') { |
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min = 0; |
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} |
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if (typeof(max) == 'undefined') { |
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max = Number.MAX_VALUE; |
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} |
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// It's not a number |
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if (isNaN(val)) { |
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theField.select(); |
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alert(errorMsg1); |
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theField.focus(); |
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return false; |
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} |
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// It's a number but it is not between min and max |
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else if (val < min || val > max) { |
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theField.select(); |
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alert(message.replace('%d', val)); |
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theField.focus(); |
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return false; |
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} |
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// It's a valid number |
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else { |
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theField.value = val; |
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} |
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return true; |
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} // end of the 'checkFormElementInRange()' function |
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/** |
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* Ensures indexes names are valid according to their type and, for a primary |
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* key, lock index name to 'PRIMARY' |
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* |
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* @return boolean false if there is no index form, true else |
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*/ |
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function checkIndexName() |
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{ |
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if (typeof(document.forms['index_frm']) == 'undefined') { |
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return false; |
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} |
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// Gets the elements pointers |
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var the_idx_name = document.forms['index_frm'].elements['index']; |
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var the_idx_type = document.forms['index_frm'].elements['index_type']; |
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// Index is a primary key |
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if (the_idx_type.options[0].value == 'PRIMARY' && the_idx_type.options[0].selected) { |
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document.forms['index_frm'].elements['index'].value = 'PRIMARY'; |
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if (typeof(the_idx_name.disabled) != 'undefined') { |
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document.forms['index_frm'].elements['index'].disabled = true; |
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} |
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} |
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// Other cases |
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else { |
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if (the_idx_name.value == 'PRIMARY') { |
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document.forms['index_frm'].elements['index'].value = ''; |
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} |
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if (typeof(the_idx_name.disabled) != 'undefined') { |
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document.forms['index_frm'].elements['index'].disabled = false; |
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} |
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} |
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return true; |
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} // end of the 'checkIndexName()' function |
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onload = checkIndexName; |