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/home/tahkoom/public_html/wp-content/plugins/ninja-forms/includes/Abstracts/Model.php
<?php if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Class NF_Abstracts_Model
*/
class NF_Abstracts_Model
{
/**
* Database Object
*
* @var string
*/
protected $_db = '';
/**
* ID
*
* The ID is assigned after being saved to the database.
*
* @var int
*/
protected $_id = '';
/**
* Temporary ID
*
* The temporary ID is used to reference unsaved objects
* before they are stored in the database.
*
* @var string
*/
protected $_tmp_id = '';
/**
* Type
*
* The type is used to pragmatically identify the type
* of an object without inspecting the class.
*
* @var string
*/
protected $_type = '';
/**
* Parent ID
*
* The ID of the parent object.
*
* @var string
*/
protected $_parent_id = '';
/**
* Parent Type
*
* The type of the parent object.
*
* @var string
*/
protected $_parent_type = '';
/**
* Table Name
*
* The name of the table where the model objects are stored.
*
* @var string
*/
protected $_table_name = '';
/**
* Meta Table Name
*
* The name of the table where the object settings are stored.
*
* @var string
*/
protected $_meta_table_name = '';
/**
* ? Deprecated ?
* @var string
*/
protected $_relationships_table = 'nf3_relationships';
/**
* Columns
*
* A list of settings that are stored in the main table as columns.
* These settings are NOT stored in the meta table.
*
* @var array
*/
protected $_columns = array();
/**
* Settings
*
* A list of settings that are stored in the meta table.
*
* @var array
*/
protected $_settings = array();
/**
* Results
*
* The last results returned by a query.
*
* @var array
*/
protected $_results = array();
/**
* Cache
*
* A Flag for using or bypassing caching.
*
* @var bool
*/
protected $_cache = TRUE;
/**
* A Flag for testing whether or not we've completed stage 1 of our db.
*
* @var boolean
*/
protected $db_stage_1_complete = TRUE;
//-----------------------------------------------------
// Public Methods
//-----------------------------------------------------
/**
* NF_Abstracts_Model constructor.
*
* @param $db
* @param $id
* @param $parent_id
*/
public function __construct( $db, $id = NULL, $parent_id = '' )
{
/*
* Injected the Database Dependency
*/
$this->_db = $db;
/*
* Assign Database Tables using the DB prefix
*/
$this->_table_name = $this->_db->prefix . $this->_table_name;
$this->_meta_table_name = $this->_db->prefix . $this->_meta_table_name;
$this->_relationships_table = $this->_db->prefix . $this->_relationships_table;
/*
* Set the object ID
* Check if the ID is Permanent (int) or Temporary (string)
*/
if( is_numeric( $id ) ) {
$this->_id = absint( $id );
} elseif( $id ) {
$this->_tmp_id = $id;
}
/*
* Set the Parent ID for context
*/
$this->_parent_id = $parent_id;
}
/**
* Get the Permanent ID
*
* @return int
*/
public function get_id()
{
return intval( $this->_id );
}
/**
* Get the Temporary ID
*
* @return null|string
*/
public function get_tmp_id()
{
return $this->_tmp_id;
}
/**
* Get the Type
*
* @return string
*/
public function get_type()
{
return $this->_type;
}
/**
* Get a single setting with a default fallback
*
* @param string $setting
* @param bool $default optional
* @return string|int|bool
*/
public function get_setting( $setting, $default = FALSE )
{
if( isset( $this->_settings[ $setting ] )){
$return = $this->_settings[ $setting ];
} else {
$return = $this->get_settings($setting);
if( is_array( $return ) && empty( $return ) ) $return = false;
}
return ( $return !== false ) ? $return : $default;
}
/**
* Get Settings
*
* @param string ...$only returns a subset of the object's settings
* @return array
*/
public function get_settings()
{
// If the ID is not set, then we cannot pull settings from the Database.
if( ! $this->_id ) return $this->_settings;
if( ! $this->_settings && 'field' == $this->_type ) {
global $wpdb;
$results = $wpdb->get_results(
"
SELECT Meta.key, Meta.value
FROM $this->_table_name as Object
JOIN $this->_meta_table_name as Meta
ON Object.id = Meta.parent_id
WHERE Object.id = '$this->_id'
"
, ARRAY_A );
foreach( $results as $result ) {
$key = $result[ 'key' ];
$this->_settings[ $key ] = $result[ 'value' ];
}
$field = $wpdb->get_row(
"
SELECT `label`, `key`, `type`
FROM $this->_table_name
WHERE `id` = '$this->_id'
",
ARRAY_A
);
if( ! is_wp_error( $field ) ){
$this->_settings[ 'label' ] = $field[ 'label' ];
$this->_settings[ 'key' ] = $field[ 'key' ];
$this->_settings[ 'type' ] = $field[ 'type' ];
$this->_settings[ 'field_label' ] = $field[ 'label' ];
$this->_settings[ 'field_key' ] = $field[ 'key' ];
}
}
if( ! $this->_settings ) {
if( WPN_Helper::use_cache() ) {
$form_cache = WPN_Helper::get_nf_cache( $this->_parent_id );
if ($form_cache) {
if ('field' == $this->_type) {
if (isset($form_cache['fields'])) {
foreach ($form_cache['fields'] as $object) {
if ($this->_id != $object['id']) continue;
$this->update_settings($object['settings']);
break;
}
}
}
}
}
}
// Only query if settings haven't been already queried or cache is FALSE.
if( ! $this->_settings || ! $this->_cache ) {
// Build query syntax from the columns property.
$columns = '`' . implode( '`, `', $this->_columns ) . '`';
// Query column settings
$results = $this->_db->get_row(
"
SELECT $columns
FROM `$this->_table_name`
WHERE `id` = $this->_id
"
);
/*
* If the query returns results then
* assign settings using the column name as the setting key.
*/
if( $results ) {
foreach ($this->_columns as $column) {
$this->_settings[$column] = $results->$column;
}
}
$meta_select_fields = "SELECT `key`, `value`";//, `meta_key`,
//`meta_value`";
// Query settings from the meta table.
$meta_results = $this->_db->get_results(
$meta_select_fields .
"
FROM `$this->_meta_table_name`
WHERE `parent_id` = $this->_id
"
);
// Assign settings to the settings property.
foreach ($meta_results as $meta) {
// If we don't already have a value from the main table...
// OR If that value was NULL...
if ( ! isset( $this->_settings[ $meta->key ] ) || NULL == $this->_settings[ $meta->key ] ) {
// TODO: Update this logic after removal of original meta columns.
// Set the value from meta.
$this->_settings[ $meta->key ] = $meta->value;
}
}
}
// Un-serialize queried settings results.
foreach( $this->_settings as $key => $value ){
$this->_settings[ $key ] = maybe_unserialize( $value );
}
// Check for passed arguments to limit the returned settings.
$only = func_get_args();
if ( $only && is_array($only)
// And if the array is NOT multidimensional
&& (count($only) == count($only, COUNT_RECURSIVE))) {
// If only one setting, return a single value
if( 1 == count( $only ) ){
if( isset( $this->_settings[ $only[0] ] ) ) {
return $this->_settings[$only[0]];
} else {
return NULL;
}
}
// Flip the array to match the settings property
$only_settings = array_flip( $only );
// Return only the requested settings
return array_intersect_key( $this->_settings, $only_settings );
}
// Return all settings
return $this->_settings;
}
/**
* Update Setting
*
* @param $key
* @param $value
* @return bool|false|int
*/
public function update_setting( $key, $value )
{
$this->_settings[ $key ] = $value;
return $this;
}
/**
* Update Settings
*
* @param $data
* @return bool
*/
public function update_settings( $data )
{
if( is_array( $data ) ) {
foreach ($data as $key => $value) {
$this->update_setting($key, $value);
}
}
return $this;
}
/**
* Delete
*
* Delete the object, its children, and its relationships.
*
* @return bool
*/
public function delete()
{
if( ! $this->get_id() ) return;
$results = array();
// Delete the object from the model's table
$results[] = $this->_db->delete(
$this->_table_name,
array(
'id' => $this->_id
)
);
// Delete settings from the model's meta table.
$results[] = $this->_db->delete(
$this->_meta_table_name,
array(
'parent_id' => $this->_id
)
);
// Query for child objects using the relationships table.
$children = $this->_db->get_results(
"
SELECT child_id, child_type
FROM $this->_relationships_table
WHERE parent_id = $this->_id
AND parent_type = '$this->_type'
"
);
// Delete each child model
foreach( $children as $child ) {
$model = Ninja_Forms()->form()->get_model( $child->child_id, $child->child_type );
$model->delete();
}
// Delete all relationships
$this->_db->delete(
$this->_relationships_table,
array(
'parent_id' => $this->_id,
'parent_type' => $this->_type
)
);
// return False if there are no query errors.
return in_array( FALSE, $results );
}
/**
* Find
*
* @param string $parent_id
* @param array $where
* @return array
*/
public function find( $parent_id = '', array $where = array() )
{
// Build the query using the $where argument
$query = $this->build_meta_query( $parent_id, $where );
// Get object IDs from the query
$ids = $this->_db->get_col( $query );
// Get the current class name
$class = get_class( $this );
$results = array();
foreach( $ids as $id ){
// Instantiate a new object for each ID
$results[] = $object = new $class( $this->_db, $id, $parent_id );
}
if( ! WPN_Helper::use_cache() ) {
$results = $this->get_object_settings($results);
}
// Return an array of objects
return $results;
}
public function get_object_settings($obj_array ) {
global $wpdb;
$id_array = array();
$generic_object_array = array();
foreach($obj_array as $obj) {
$id_array[] = $obj->get_id();
$generic_object_array[$obj->get_id()] = $obj;
}
if( 0 < count($id_array) ) {
$obj_query = "SELECT `id`, `" . implode( '`, `', $this->_columns) . "` FROM {$this->_table_name} WHERE id IN (" . implode(',', $id_array) . ")";
$table_data = $wpdb->get_results($obj_query, ARRAY_A);
foreach($table_data as $data_item) {
foreach($data_item as $label => $val ) {
$generic_object_array[$data_item['id']]->_settings[$label] = maybe_unserialize( $val );
}
}
$meta_query = "SELECT * FROM {$this->_meta_table_name} WHERE parent_id IN (" . implode(',', $id_array) . ")";
$meta_data = $wpdb->get_results($meta_query, ARRAY_A);
foreach($meta_data as $meta) {
// if( ! isset($generic_object_array[$meta['parent_id']]->_settings[$meta['meta_key']])) {
$generic_object_array[$meta['parent_id']]->_settings[$meta['meta_key']] = maybe_unserialize( $meta['meta_value'] );
// }
}
}
$obj_array = array_values($generic_object_array);
return $obj_array;
}
/*
* UTILITY METHODS
*/
/**
* Save
*/
public function save()
{
/**
* Check to see if we've completed stage 1 of our db update.
*/
$sql = "SHOW COLUMNS FROM {$this->_db->prefix}nf3_fields LIKE 'field_key'";
$results = $this->_db->get_results( $sql );
/**
* If we don't have the field_key column, we need to remove our new columns.
*
* Also, set our db stage 1 tracker to false.
*/
if ( empty ( $results ) ) {
$this->db_stage_1_complete = false;
}
$data = array ( 'updated_at' => current_time( 'mysql' ));
// If the ID is not set, assign an ID
if( ! $this->_id ){
$data[ 'created_at' ] = current_time( 'mysql' ) ;
if( $this->_parent_id ){
$data['parent_id'] = $this->_parent_id;
}
// Create a new row in the database
$result = $this->_db->insert(
$this->_table_name,
$data
);
// Assign the New ID
$this->_id = $this->_db->insert_id;
} else {
$result = $this->_db->get_row( "SELECT * FROM $this->_table_name WHERE id = $this->_id" );
if( ! $result ){
$this->_insert_row( array( 'id' => $this->_id ) );
}
}
$this->_save_settings();
// If a Temporary ID is set, return it along with the newly assigned ID.
if( $this->_tmp_id ){
return array( $this->_tmp_id => $this->_id );
}
}
public function _insert_row( $data = array() )
{
$data[ 'created_at' ] = current_time( 'mysql' );
if( $this->_parent_id ){
$data['parent_id'] = $this->_parent_id;
}
// Create a new row in the database
$result = $this->_db->insert(
$this->_table_name,
$data
);
}
/**
* Cache Flag
*
* @param string $cache
* @return $this
*/
public function cache( $cache = '' )
{
// Set the Cache Flag Property.
if( $cache !== '' ) {
$this->_cache = $cache;
}
// Return the current object for method chaining.
return $this;
}
/**
* Add Parent
*
* Set the Parent ID and Parent Type properties
*
* @param $parent_id
* @param $parent_type
* @return $this
*/
public function add_parent( $parent_id, $parent_type )
{
$this->_parent_id = $parent_id;
$this->_parent_type = $parent_type;
// Return the current object for method chaining.
return $this;
}
//-----------------------------------------------------
// Protected Methods
//-----------------------------------------------------
/**
* Save Setting
*
* Save a single setting.
*
* @param $key
* @param $value
* @return bool|false|int
*/
protected function _save_setting( $key, $value )
{
// If the setting is a column, save the settings to the model's table.
if( in_array( $key, $this->_columns ) ){
$format = null;
if( in_array( $key, array( 'show_title', 'clear_complete', 'hide_complete', 'logged_in' ) ) ) {
// gotta set the format for the columns that use bit type
$format = '%d';
}
if( 'form' === $this->_type && 'title' == $key ) {
$this->_db->update(
$this->_table_name,
array(
'form_title' => $value
),
array(
'id' => $this->_id
),
$format
);
}
// Don't update the form_title. Duplicating issue for now
if( 'form_title' !== $key ) {
$update_model = $this->_db->update(
$this->_table_name,
array(
$key => $value
),
array(
'id' => $this->_id
),
$format
);
} else {
return 1;
}
/*
* if it's not a form, you can return, but we are still saving some
* settings for forms in the form_meta table
*/
if( 'form' != $this->_type
|| ( 'form' == $this->_type && 'title' == $key ) ) {
return $update_model;
}
}
$meta_row = $this->_db->get_row(
"
SELECT `value`
FROM `$this->_meta_table_name`
WHERE `parent_id` = $this->_id
AND `key` = '$key'
"
);
if( $meta_row ){
$update_values = array(
'value' => $value,
);
// for forms we need to update the meta_key and meta_value columns
if( 'form' == $this->_type || $this->db_stage_1_complete ) {
$update_values[ 'meta_key' ] = $key;
$update_values[ 'meta_value' ] = $value;
}
$result = $this->_db->update(
$this->_meta_table_name,
$update_values,
array(
'key' => $key,
'parent_id' => $this->_id
)
);
} else {
$insert_values = array(
'key' => $key,
'value' => $value,
'parent_id' => $this->_id
);
// for forms we need to update the meta_key and meta_value columns
if( 'form' == $this->_type || $this->db_stage_1_complete ) {
$insert_values[ 'meta_key' ] = $key;
$insert_values[ 'meta_value' ] = $value;
}
$result = $this->_db->insert(
$this->_meta_table_name,
$insert_values,
array(
'%s',
'%s',
'%d'
)
);
}
return $result;
}
/**
* Save Settings
*
* Save all settings.
*
* @return bool
*/
protected function _save_settings()
{
if( ! $this->_settings ) return;
foreach( $this->_settings as $key => $value ) {
$value = maybe_serialize( $value );
$this->_results[] = $this->_save_setting( $key, $value );
}
$this->_save_parent_relationship();
return $this->_results;
}
/**
* Save Parent Relationship
*
* @return $this
*/
protected function _save_parent_relationship()
{
// ID, Type, Parent ID, and Parent Type are required for creating a relationship.
if( ! $this->_id || ! $this->_type || ! $this->_parent_id || ! $this->_parent_type ) return $this;
// Check to see if a relationship exists.
$this->_db->get_results(
"
SELECT *
FROM $this->_relationships_table
WHERE `child_id` = $this->_id
AND `child_type` = '$this->_type'
"
);
// If a relationship does not exists, then create one.
if( 0 == $this->_db->num_rows ) {
$this->_db->insert(
$this->_relationships_table,
array(
'child_id' => $this->_id,
'child_type' => $this->_type,
'parent_id' => $this->_parent_id,
'parent_type' => $this->_parent_type
),
array(
'%d',
'%s',
'%d',
'%s',
)
);
}
// Return the current object for method chaining.
return $this;
}
/**
* Build Meta Query
*
* @param string $parent_id
* @param array $where
* @return string
*/
protected function build_meta_query( $parent_id = '', array $where = array() )
{
$join_statement = array();
$where_statement = array();
if( $where AND is_array( $where ) ) {
$where_conditions = array();
foreach ($where as $key => $value) {
$conditions['key'] = $key;
$conditions['value'] = $value;
$where_conditions[] = $conditions;
}
$count = count($where);
for ($i = 0; $i < $count; $i++) {
$join_statement[] = "INNER JOIN " . $this->_meta_table_name . " as meta$i on meta$i.parent_id = " . $this->_table_name . ".id";
$where_statement[] = "( meta$i.key = '" . $where_conditions[$i]['key'] . "' AND meta$i.value = '" . $where_conditions[$i]['value'] . "' )";
}
}
$join_statement = implode( ' ', $join_statement );
$where_statement = implode( ' AND ', $where_statement );
// TODO: Breaks SQL. Needs more testing.
// if( $where_statement ) $where_statement = "AND " . $where_statement;
if( $parent_id ){
$where_statement = "$this->_table_name.parent_id = $parent_id $where_statement";
}
if( ! empty( $where_statement ) ) {
$where_statement = "WHERE $where_statement";
}
return "SELECT DISTINCT $this->_table_name.id FROM $this->_table_name $join_statement $where_statement";
}
}
رواية “موسم صيد الغزلان “أدب يقرأ الغد: فكيف توقّعت رواية مراد تقنيات اليوم؟ – tahkoom.com
كتبت: فرح سمير
في عام 2017، أصدر الكاتب المصري أحمد مراد روايته “موسم صيد الغزلان”، التي جاءت خارج المألوف في السرد العربي، واصطحبت القارئ في رحلة إلى مستقبل تحكمه التكنولوجيا، وتختفي فيه ملامح الحياة التقليدية. رواية استباقية طرحت أسئلة علمية وفلسفية بلغة أدبية مشوقة، وتنبأت بواقع نبدأ اليوم في ملامسته.
في الرواية، نتتبع رحلة “نديم”، أستاذ بيولوجيا شاب يؤمن بالعلم المطلق وينكر الأديان، يلتقي بـ”تُقى”، فتاة تنتمي إلى جماعة سرّية ما زالت تؤمن بالروحانيات والإيمان. ينطلق الصراع بين العقل والإيمان في قالب حواري وفلسفي داخل عالم مستقبلي متطور تقنيًا، تُستخدم فيه تقنيات زرع الذاكرة، والعلاج بالروبوت، والتعليم بالنقل العصبي. وبين أسئلة الإيمان، والحب، والمعرفة، يكشف مراد عالماً يُخضع الإنسان للآلة ويطرح تساؤلات وجودية عميقة عن المستقبل ومعنى الحياة.
مراد لم يكتب من فراغ، بل بنى روايته على بحث علمي مكثف. وقال مراد في أحد تصريحاته:
ما كتبه أحمد مراد عن أدوات الاتصال الذكية، التعليم القائم على زراعة المعرفة في الدماغ، والطب القادر على استبدال أعضاء الإنسان بالكامل، لم يعد ضرباً من الخيال. فالواقع الافتراضي والمعزز، والهولوجرام، والروبوتات الجراحية، وواجهات زرع المعلومات في الدماغ مثل Neuralink، كلها تقنيات بدأت تظهر في حياتنا المعاصرة. حتى التقدم في مجالات تعديل الأجنة وزراعة الأعضاء الصناعية الذكية أصبح اليوم محط نقاش وتجربة.
ورغم سيطرة الخط التكنولوجي، لم تغب الكوارث البيئية عن الرواية. فقد أشار مراد إلى جفاف نهر النيل، وغرق مناطق الدلتا والإسكندرية بسبب ذوبان الجليد القطبي. وهي مشاهد روائية تنسجم بشكل مقلق مع التحذيرات العلمية الراهنة من آثار تغيّر المناخ على المدن الساحلية.
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