Active Record validation is reported to and from this object, which is used by Base#save to determine whether the object is in a valid state to be saved. See usage example in Validations.
| Public Methods | |
|---|---|
| [] | Alias for #on |
| add | Adds an error message (msg) to the attribute, which will be returned on a call to on(attribute) for the same attribute and ensure that this error object returns false when asked if empty?. More than one error can be added to the same attribute in which case an array will be returned on a call to on(attribute). If no msg is supplied, "invalid" is assumed. |
| add_ |
Will add an error message to each of the attributes in attributes that is blank (using Object#blank?). |
| add_ |
Will add an error message to each of the attributes in attributes that is empty. |
| add_ |
Adds an error to the base object instead of any particular attribute. This is used to report errors that don’t tie to any specific attribute, but rather to the object as a whole. These error messages don’t get prepended with any field name when iterating with each_full, so they should be complete sentences. |
| clear | Removes all errors that have been added. |
| count | Alias for #size |
| each | Yields each attribute and associated message per error added. |
| each_ |
Yields each full error message added. So Person.errors.add("first_name", "can’t be empty") will be returned through iteration as "First name can’t be empty". |
| empty? | Returns true if no errors have been added. |
| full_ |
Returns all the full error messages in an array. |
| invalid? | Returns true if the specified attribute has errors associated with it. |
| length | Alias for #size |
| new | |
| on | Returns nil, if no errors are associated with the specified attribute. Returns the error message, if one error is associated with the specified attribute. Returns an array of error messages, if more than one error is associated with the specified attribute. |
| on_ |
Returns errors assigned to the base object through add_to_base according to the normal rules of on(attribute). |
| size | Returns the total number of errors added. Two errors added to the same attribute will be counted as such. |
| to_ |
Return an XML representation of this error object. |
<code/>and<pre/>for code samples.