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Merge pull request #319 from nigelgbanks/7.x-fix-nigels-cockup 

Prevent inifite loop when a callbacks is the last step to be executed.
pull/320/head
Jordan Dukart 12 years ago
parent
2ab120651a 07c4c35e9a
commit
c4f34f4176
1 changed files with 133 additions and 47 deletions
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  1. 170
      includes/ingest.form.inc

170
includes/ingest.form.inc
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@ -84,9 +84,42 @@ function islandora_ingest_form_init_form_state_storage(array &$form_state, array
'shared_storage' => $configuration,
'step_storage' => array(),
);
// Must be called after $form_state['islandora'] is initialized, otherwise,
// the values in 'islandora' would not be availible to the step hooks.
$form_state['islandora']['step_id'] = islandora_ingest_form_get_first_step_id($form_state);
}
}
/**
* Get the first step ID.
*
* @param array $form_state
* The Drupal form state.
*
* @return string
* The 'id' of the very first step.
*/
function islandora_ingest_form_get_first_step_id(array &$form_state) {
$steps = islandora_ingest_form_get_steps($form_state);
$keys = array_keys($steps);
return array_shift($keys);
}
/**
* Get the last step ID.
*
* @param array $form_state
* The Drupal form state.
*
* @return string
* The 'id' of the very last step.
*/
function islandora_ingest_form_get_last_step_id(array &$form_state) {
$steps = islandora_ingest_form_get_steps($form_state);
$keys = array_keys($steps);
return array_pop($keys);
}
/**
* Prepares a new object based on the given configuration.
*
@ -115,13 +148,12 @@ function islandora_ingest_form_prepare_new_object(array $configuration) {
/**
* Gets the given/current step.
*
* The current step is returned if no step ID is given. If the current step is
* not defined it's assume to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
*
* @param array $form_state
* The Drupal form state.
* @param string $step_id
* The ID of the step.
* The ID of the step. The current step is returned if no step ID is given.
*
* @return array
* The given/current step if found, NULL otherwise.
@ -138,7 +170,7 @@ function islandora_ingest_form_get_step(array &$form_state, $step_id = NULL) {
/**
* Gets the next step.
*
* If the current step is not defined, its assumed to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
*
* @param array $form_state
* The Drupal form state.
@ -151,16 +183,13 @@ function islandora_ingest_form_get_step(array &$form_state, $step_id = NULL) {
function islandora_ingest_form_get_next_step(array &$form_state, array $step = NULL) {
$step = isset($step) ? $step : islandora_ingest_form_get_step($form_state);
$next_step_id = islandora_ingest_form_get_next_step_id($form_state, $step['id']);
if ($next_step_id) {
return islandora_ingest_form_get_step($form_state, $next_step_id);
}
return NULL;
return isset($next_step_id) ? islandora_ingest_form_get_step($form_state, $next_step_id) : NULL;
}
/**
* Gets the previous step.
*
* If the current step is not defined, its assumed to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
*
* @param array $form_state
* The Drupal form state.
@ -172,17 +201,14 @@ function islandora_ingest_form_get_next_step(array &$form_state, array $step = N
*/
function islandora_ingest_form_get_previous_step(array &$form_state, array $step = NULL) {
$step = isset($step) ? $step : islandora_ingest_form_get_step($form_state);
$next_step_id = islandora_ingest_form_get_previous_step_id($form_state, $step['id']);
if ($next_step_id) {
return islandora_ingest_form_get_step($form_state, $next_step_id);
}
return NULL;
$previous_step_id = islandora_ingest_form_get_previous_step_id($form_state, $step['id']);
return isset($previous_step_id) ? islandora_ingest_form_get_step($form_state, $previous_step_id) : NULL;
}
/**
* Gets the ID of the current step.
*
* If a current step is not defined, its assumed to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
*
* @param array $form_state
* The Drupal form state.
@ -191,18 +217,13 @@ function islandora_ingest_form_get_previous_step(array &$form_state, array $step
* The step ID.
*/
function islandora_ingest_form_get_current_step_id(array &$form_state) {
if (empty($form_state['islandora']['step_id'])) {
$steps = islandora_ingest_form_get_steps($form_state);
$keys = array_keys($steps);
return array_shift($keys);
}
return $form_state['islandora']['step_id'];
}
/**
* Gets the ID of the next step.
*
* If a current step is not defined, its assumed to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
*
* @param array $form_state
* The Drupal form state.
@ -227,7 +248,8 @@ function islandora_ingest_form_get_next_step_id(array &$form_state, $step_id = N
/**
* Gets the ID of the previous step.
*
* If a current step is not defined, its assumed to be the first step.
* If the current step is not defined it's assumed that all steps have executed.
* In such cases the last step will be returned.
*
* @param array $form_state
* The Drupal form state.
@ -240,6 +262,11 @@ function islandora_ingest_form_get_next_step_id(array &$form_state, $step_id = N
*/
function islandora_ingest_form_get_previous_step_id(array &$form_state, $step_id = NULL) {
$step_id = isset($step_id) ? $step_id : islandora_ingest_form_get_current_step_id($form_state);
// If the current step is not defined it's assumed that all steps have
// executed. So return the very last step.
if ($step_id == NULL) {
return islandora_ingest_form_get_last_step_id($form_state);
}
$step_ids = array_keys(islandora_ingest_form_get_steps($form_state));
$index = array_search($step_id, $step_ids);
if ($index !== FALSE && --$index >= 0) {
@ -259,12 +286,10 @@ function islandora_ingest_form_increment_step(array &$form_state) {
// of the current step could have added/removed a step.
drupal_static_reset('islandora_ingest_form_get_steps');
$next_step_id = islandora_ingest_form_get_next_step_id($form_state);
if (isset($next_step_id)) {
islandora_ingest_form_stash_info($form_state);
$form_state['islandora']['step_id'] = $next_step_id;
islandora_ingest_form_grab_info($form_state);
}
}
/**
* Decrement the current step if possible.
@ -274,6 +299,7 @@ function islandora_ingest_form_increment_step(array &$form_state) {
*/
function islandora_ingest_form_decrement_step(array &$form_state) {
$previous_step_id = islandora_ingest_form_get_previous_step_id($form_state);
// Don't decrement passed the first step.
if (isset($previous_step_id)) {
islandora_ingest_form_stash_info($form_state);
$form_state['islandora']['step_id'] = $previous_step_id;
@ -346,7 +372,17 @@ function islandora_ingest_form_execute_step(array $form, array &$form_state, $st
}
/**
* Assumes the given $step is a 'form' step.
* Execute the given 'form' step.
*
* Assumes the given step is a 'form' step.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*
* @return array
* The form definition of the given step.
*/
function islandora_ingest_form_execute_form_step(array $form, array &$form_state, array $step) {
$args = array($form, &$form_state);
@ -356,7 +392,14 @@ function islandora_ingest_form_execute_form_step(array $form, array &$form_state
}
/**
* Assumes the given $step is a 'callback' step.
* Execute the given 'callback' step and any consecutive 'callback' steps.
*
* Assumes the given step is a 'callback' step.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_ingest_form_execute_consecutive_callback_steps(array $form, array &$form_state, array $step) {
do {
@ -367,7 +410,14 @@ function islandora_ingest_form_execute_consecutive_callback_steps(array $form, a
}
/**
* Assumes the given $step is a 'callback' step.
* Execute the given 'callback' step.
*
* Assumes the given step is a 'callback' step.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_ingest_form_execute_callback_step(array $form, array &$form_state, array $step) {
$args = array(&$form_state);
@ -376,7 +426,14 @@ function islandora_ingest_form_execute_callback_step(array $form, array &$form_s
}
/**
* Undo the given 'callback' step and any consecutive 'callback' steps.
*
* Assumes the given $step is a 'callback' step.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_ingest_form_undo_consecutive_callback_steps(array $form, array &$form_state, array $step) {
do {
@ -387,7 +444,14 @@ function islandora_ingest_form_undo_consecutive_callback_steps(array $form, arra
}
/**
* Undo the given 'callback' step.
*
* Assumes the given $step is a 'callback' step.
*
* @param array $form
* The Drupal form.
* @param array $form_state
* The Drupal form state.
*/
function islandora_ingest_form_undo_callback_step(array $form, array &$form_state, array $step) {
$args = array(&$form_state);
@ -426,11 +490,7 @@ function islandora_ingest_form_stepify(array $form, array &$form_state, $step) {
* TRUE if we are currently on the first step, FALSE otherwise.
*/
function islandora_ingest_form_on_first_form_step(array &$form_state) {
$step = NULL;
do {
$step = islandora_ingest_form_get_previous_step($form_state, $step);
} while (isset($step) && $step['type'] != 'form');
return !$step;
return !islandora_ingest_form_get_previous_form_step($form_state);
}
/**
@ -443,11 +503,41 @@ function islandora_ingest_form_on_first_form_step(array &$form_state) {
* TRUE if we are currently on the last step, FALSE otherwise.
*/
function islandora_ingest_form_on_last_form_step(array &$form_state) {
return !islandora_ingest_form_get_next_form_step($form_state);
}
/**
* Get the previous form step relative to the current step.
*
* @param array $form_state
* The Drupal form state.
*
* @return array
* The previous form step if one exists, NULL otherwise.
*/
function islandora_ingest_form_get_previous_form_step(array &$form_state) {
$step = NULL;
do {
$step = islandora_ingest_form_get_previous_step($form_state, $step);
} while (isset($step) && $step['type'] != 'form');
return $step;
}
/**
* Get the next form step relative to the current step.
*
* @param array $form_state
* The Drupal form state.
*
* @return array
* The next form step if one exists, NULL otherwise.
*/
function islandora_ingest_form_get_next_form_step(array &$form_state) {
$step = NULL;
do {
$step = islandora_ingest_form_get_next_step($form_state, $step);
} while (isset($step) && $step['type'] != 'form');
return !$step;
return $step;
}
/**
@ -462,17 +552,12 @@ function islandora_ingest_form_on_last_form_step(array &$form_state) {
* The previous button for the ingest form.
*/
function islandora_ingest_form_previous_button(array &$form_state) {
// Before we move back to the previous step we should tell the previous step
// Before we move back to the previous step we should tell the previous steps
// to undo whatever its submit handler did.
$prev_step = islandora_ingest_form_get_previous_step($form_state);
if ($prev_step['type'] == 'form') {
$form_id = $prev_step['form_id'];
$prev_form_step = islandora_ingest_form_get_previous_form_step($form_state);
$form_id = $prev_form_step['form_id'];
$submit_callback = $form_id . '_undo_submit';
$submit = function_exists($submit_callback) ? array($submit_callback, 'islandora_ingest_form_previous_submit') : array('islandora_ingest_form_previous_submit');
}
else {
$submit = array('islandora_ingest_form_previous_submit');
}
return array(
'#type' => 'submit',
'#value' => t('Previous'),
@ -691,7 +776,8 @@ function &islandora_ingest_form_get_step_storage(array &$form_state, $step_id =
}
return $form_state['islandora']['step_storage'][$step_id];
}
return NULL;
$undefined_step_storage = array();
return $undefined_step_storage;
}
/**

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