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farmOS/modules/farm/farm_livestock/farm_livestock.farm_quick.move.inc

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<?php
/**
* @file
* Farm livestock move quick form.
*/
/**
* Form for adding animal movement logs.
*/
function farm_livestock_move_form($form, &$form_state) {
// Wrapper fieldset.
$form['move'] = array(
'#type' => 'fieldset',
'#title' => t('Record animal move'),
'#description' => t('Use this form to record the movement of animals to an area. An activity log will be created with standard details filled in. You can also specify before/after observations of the area(s) that the animals are moving to/from.'),
);
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// Make the form a tree.
$form['move']['#tree'] = TRUE;
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// Define the date format for logs.
$date_format = 'Y-m-d';
// Movement date.
$form['move']['date'] = array(
'#type' => 'date_select',
'#title' => t('Movement Date'),
'#date_format' => $date_format,
'#date_label_position' => 'within',
'#date_year_range' => '-10:+3',
'#default_value' => REQUEST_TIME,
'#required' => TRUE,
);
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// Animal/group select.
$form['move']['asset'] = array(
'#type' => 'textfield',
'#title' => t('Group/animal'),
'#description' => t('Select the group/animal that is being moved.'),
'#autocomplete_path' => 'farm_asset/autocomplete/animal+group',
'#ajax' => array(
'callback' => 'farm_livestock_move_form_current_location_ajax',
),
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'#required' => TRUE,
);
// Load the animal or group asset
// if an asset name has been entered.
if (!empty($form_state['values']['move']['asset'])) {
// Extract an ID from the text field.
$asset_id = 0;
$matches = array();
$result = preg_match('/\\[id: ([0-9]+)\\]/', $form_state['values']['move']['asset'], $matches);
if (!empty($matches[$result])) {
$asset_id = $matches[$result];
}
}
// If an asset ID was found, load the asset.
$asset = NULL;
if (!empty($asset_id)) {
$asset = farm_asset_load($asset_id);
}
$form['move']['current_location'] = array(
'#type' => 'hidden',
'#value' => '',
'#prefix' => '<div id="current-location">',
'#suffix' => '</div>',
);
// If a valid asset was supplied load its
// current location and save WKT to hidden field.
if (!empty($asset)) {
$areas = farm_movement_asset_location($asset);
// Get WKT geometry.
$area_ids = array();
foreach($areas as $area) {
$area_ids[] = $area->tid;
}
$geom = farm_area_extract_geoms($area_ids);
// Update current location field with WKT.
$form['move']['current_location']['#value'] = $geom;
}
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// Area reference.
$form['move']['area']['name'] = array(
'#type' => 'textfield',
'#title' => t('Moving to'),
'#description' => t('Enter the name of the area that animals are moving to. A list of existing area options will appear as you type. If the area does not exist, a new one will be created.'),
'#autocomplete_path' => 'taxonomy/autocomplete/field_farm_area',
'#ajax' => array(
'callback' => 'farm_livestock_move_form_next_location_ajax',
),
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'#required' => TRUE,
);
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// Geometry
// Add a farmOS map instance.
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$form['move']['area']['geometry'] = array(
'#type' => 'fieldset',
'#title' => t('Geometry'),
'#description' => t('This field allows you to optionally specify a more precise geometry for the new location of assets. If you leave it blank, the geometry will be copied from the areas that assets are moving to (if available).'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['move']['area']['geometry']['map'] = array(
'#type' => 'farm_map',
'#map_name' => 'farm_movement',
);
$form['move']['area']['geometry']['data'] = array(
'#prefix' => '<div id="movement-geometry">',
'#suffix' => '</div>',
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'#type' => 'textarea',
'#title' => t('Data'),
'#default_value' => '',
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);
// If provided, load the next location WKT
// and update the geometry textarea.
if (!empty($form_state['values']['move']['area']['name'])) {
$areas = farm_term_parse_names($form_state['values']['move']['area']['name'], 'farm_areas', FALSE);
// Load WKT geometry.
$area_ids = array();
foreach($areas as $area) {
$area_ids[] = $area->tid;
}
$geom = farm_area_extract_geoms($area_ids);
// Update geometry textarea with WKT.
// Because textarea values cannot be an array we
// use the first index as the string to display.
if (!empty($geom[0])) {
$form['move']['area']['geometry']['data']['#default_value'] = $geom[0];
unset($form_state['input']['move']['area']['geometry']['data']);
}
}
// Observations
$form['move']['observations'] = array(
'#type' => 'fieldset',
'#title' => t('Observations'),
'#description' => t('Optionally provide information about the area(s) that animals are moving out of, as well as the area(s) they are moving into.'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
// Determine the unit based on the system of measurement.
// (inches for US/Imperial, cm for Metric).
$system = farm_quantity_system_of_measurement();
$unit = 'cm';
if ($system == 'us') {
$unit = 'inches';
}
// Save the unit for later.
$form['move']['observations']['pasture_height_units'] = array(
'#type' => 'value',
'#value' => $unit,
);
// Post grazing.
$form['move']['observations']['post'] = array(
'#type' => 'fieldset',
'#title' => t('Post grazing in last area'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['move']['observations']['post']['pasture_height'] = array(
'#type' => 'textfield',
'#title' => t('Pasture height'),
'#input_group' => TRUE,
'#field_suffix' => $unit,
'#element_validate' => array('element_validate_number'),
);
$form['move']['observations']['post']['forage_quality'] = array(
'#type' => 'textfield',
'#title' => t('Relative forage quality'),
'#description' => t('Give the forage quality a rating. This can be any number, but using a consistent scale (eg: 1-10) helps in future comparisons.'),
'#element_validate' => array('element_validate_number'),
);
// Pre grazing
$form['move']['observations']['pre'] = array(
'#type' => 'fieldset',
'#title' => t('Pre grazing in next area'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['move']['observations']['pre']['pasture_height'] = array(
'#type' => 'textfield',
'#title' => t('Pasture height'),
'#input_group' => TRUE,
'#field_suffix' => $unit,
'#element_validate' => array('element_validate_number'),
);
$form['move']['observations']['pre']['forage_quality'] = array(
'#type' => 'textfield',
'#title' => t('Relative forage quality'),
'#description' => t('Give the forage quality a rating. This can be any number, but using a consistent scale (eg: 1-10) helps in future comparisons.'),
'#element_validate' => array('element_validate_number'),
);
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// Submit button.
$form['move']['submit'] = array(
'#type' => 'submit',
'#value' => t('Save'),
);
// Add javascript.
drupal_add_js(drupal_get_path('module', 'farm_livestock') . '/js/farm_livestock.farm_quick.move.js');
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// Return the form.
return $form;
}
/**
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* Validate callback for movement quick form.
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*/
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function farm_livestock_move_form_validate($form, &$form_state) {
// Validate animal or group asset.
// Extract asset ID.
$id = 0;
$matches = array();
$result = preg_match('/\\[id: ([0-9]+)\\]/', $form_state['values']['move']['asset'], $matches);
if (!empty($matches[$result])) {
$id = $matches[$result];
}
// If an ID couldn't be extracted, throw an error.
if (empty($id)) {
form_set_error('move][asset', t('Could not load the animal asset. Make sure the animal asset ID is included. For example: "My animal [id: 123]"'));
}
// Load the asset.
$asset = farm_asset_load($id);
// If the asset didn't load, throw an error.
if (empty($asset)) {
form_set_error('move][asset', t('Could not load the animal asset. Make sure the animal name and ID are correct.'));
}
// Save the asset to the form state.
$form_state['storage']['asset'] = $asset;
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}
/**
* Ajax callback for farm_livestock_move_form().
*/
function farm_livestock_move_form_current_location_ajax($form, $form_state) {
// Get the "wkt" form element and CSS selector.
$element = $form['move']['current_location'];
$selector = '#current-location';
// Assemble commands...
$commands = array();
// Replace the hidden field.
$commands[] = ajax_command_replace($selector, render($element));
// Execute Javascript to add WKT to the map.
$commands[] = array('command' => 'previewCurrentLocation');
// Return ajax commands.
return array('#type' => 'ajax', '#commands' => $commands);
}
/**
* Ajax callback for farm_livestock_move_form().
*/
function farm_livestock_move_form_next_location_ajax($form, $form_state) {
// Get the "wkt" form element and CSS selector.
$element = $form['move']['area']['geometry']['data'];
$selector = '#movement-geometry';
// Assemble commands...
$commands = array();
// Replace the hidden field.
$commands[] = ajax_command_replace($selector, render($element));
// Execute Javascript to add WKT to the map.
$commands[] = array('command' => 'updateMovementLayer');
// Return ajax commands.
return array('#type' => 'ajax', '#commands' => $commands);
}
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/**
* Submit function for movement quick form.
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*/
function farm_livestock_move_form_submit($form, &$form_state) {
// Get the movement timestamp.
$timestamp = strtotime($form_state['values']['move']['date']);
// Load the asset.
$asset = $form_state['storage']['asset'];
if (empty($asset)) {
return;
}
// Save the pasture height units.
$pasture_height_units = $form_state['values']['move']['observations']['pasture_height_units'];
// Build post grazing measurements.
$post_grazing_measurements = array();
// Add post grazing pasture height measurement.
if (!empty($form_state['values']['move']['observations']['post']['pasture_height'])) {
$post_grazing_measurements[] = array(
'measure' => 'length',
'value' => $form_state['values']['move']['observations']['post']['pasture_height'],
'units' => $pasture_height_units,
'label' => 'Pasture Height',
);
}
// Add post grazing forage quality measurement.
if (!empty($form_state['values']['move']['observations']['post']['forage_quality'])) {
$post_grazing_measurements[] = array(
'measure' => 'rating',
'value' => $form_state['values']['move']['observations']['post']['forage_quality'],
'label' => 'Forage Quality',
);
}
// Create post grazing observation log if measurements are provided.
// Do this before creating a movement log for the asset.
if (!empty($post_grazing_measurements)) {
$post_grazing_log = farm_quantity_log_create('farm_observation', 'Post grazing observation', $timestamp, TRUE, array($asset), $post_grazing_measurements);
// Link post grazing logs to the area(s) animals are moving from.
$previous_areas = farm_movement_asset_location($asset);
if (!empty($previous_areas)) {
// Create an entity metadata wrapper for the log.
$log_wrapper = entity_metadata_wrapper('log', $post_grazing_log);
// Add areas to log.
foreach($previous_areas as $area) {
$log_wrapper->field_farm_area[] = $area;
}
// Save the log.
$log_wrapper->save();
}
}
// If the location is available, load areas.
$areas = array();
if (!empty($form_state['values']['move']['area']['name'])) {
$areas = farm_term_parse_names($form_state['values']['move']['area']['name'], 'farm_areas', TRUE);
}
// Get the geometry.
$geom = '';
if (!empty($form_state['values']['move']['area']['geometry']['data'])) {
$geom = $form_state['values']['move']['area']['geometry']['data'];
}
// Create activity log with asset movement to areas and specific geometry.
$movement_log = farm_movement_create($asset, $areas, $timestamp, 'farm_activity', TRUE, $geom);
// Save the movement log.
log_save($movement_log);
// Build pre grazing measurements.
$pre_grazing_measurements = array();
// Add pre grazing pasture height measurement.
if (!empty($form_state['values']['move']['observations']['pre']['pasture_height'])) {
$pre_grazing_measurements[] = array(
'measure' => 'length',
'value' => $form_state['values']['move']['observations']['pre']['pasture_height'],
'units' => $pasture_height_units,
'label' => 'Pasture Height',
);
}
// Add pre grazing forage quality measurement.
if (!empty($form_state['values']['move']['observations']['pre']['forage_quality'])) {
$pre_grazing_measurements[] = array(
'measure' => 'rating',
'value' => $form_state['values']['move']['observations']['pre']['forage_quality'],
'label' => 'Forage Quality',
);
}
// Create pre grazing observation log if measurements are provided.
if (!empty($pre_grazing_measurements)) {
$pre_grazing_log = farm_quantity_log_create('farm_observation', 'Pre grazing observation', $timestamp, TRUE, array($asset), $pre_grazing_measurements);
// Link pre grazing logs to the area animals are moving to.
if (!empty($areas)) {
// Create an entity metadata wrapper for the log.
$log_wrapper = entity_metadata_wrapper('log', $pre_grazing_log);
// Add areas to log.
foreach($areas as $area) {
$log_wrapper->field_farm_area[] = $area;
}
// Save the log.
$log_wrapper->save();
}
}
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}