Tesla

By on June 21, 2017

Tesla

Tesla

“Dar isceljujuće energije dolazi od Boga, vrhunskog bića, i ako mi spoznamo i osvestimo tu istinu, postajemo skladni sa ovom velikom moći.” Nikola Tesla

Tretmani na daljinu tesla bioenergijom

Intezitet ovih frekvencija ne opada sa rastojanjem, što omogućava da tretmani isceljivanja na daljinu budu podjednako efikasni kao i kada se osoba nalazi pored praktičara.

Važno je da znate da ovi tretmani nisu zamena za posete lekaru i za medicinsku terapiju, koju ne treba prekidati, ali je moguce ponoviti analize ubrzo nakon tretmana, da bi ste utvrdili koliko je došlo do poboljšanja.Ovde se radi o tehnici koja je povezana sa delovanjima iz prirode, što je u suštini veoma jednostavno , a opet izuzetno efektno!Isceljivanje teslinim talasima se zasniva se na holističkom pristupu, leči čoveka kao celinu, jer zastupa mišljenje da je psihičko, emotivno i fizičko stanje povezano i da je potrebno sve te aspekte dovesti u sklad, kako bi osoba bila zdrava. Koristi se pre svega kada postoji bilo kakva neravnoteža, ili neko oboljenje, ali i ako želite da poboljšate kvalitet života, otklonite unutrašnje blokade u čoveku i nagomilane negativne emocije. Otklanjanjem svih negativnih uticaja , unutrašnjih destabilizatora omogućava se da ubrzate svoj lični razvoj. Ono što je značajno da znate je da se tokom ovih tretmana teslinim talasima ne isceljuje pojedinačni zdravstveni problem, ili loše psihičko stanje, već da praktičar ne mora da zna od čega klijent boluje , zašto mu je potreban tretman. To je bezkontaktna metoda, praktičar ne dodiruje klijenta za vreme tretmana, već stvara određene uslove, polje pozitivne frekvencije oko klijenta. To su takve frekvencije, koje deluju na celokupno stanje osobe, sve njene nivoe (fizički, mentalni, emotivni, duhovni), pronalazeći i delujući na uzroke, uklanjaju energetske nepravilnosti, vraćaju u ravnotežu, podstiču ispravno funkcionisanje i samoisceljujuće procese i tako dolazi do poboljšanja. Ono je uočljivo, izrazito efektno deluje!

Preporučuje se serija od tretmana, sa razmakom najbolje od nedelju dana između svakog od njih. Reč o metodu isceljivanja, koje pokreće samoisceljivanje.Izuzetno je važno, možda i ključno, ne da verujete,ili ne verujete u ovaj metod , već DA IMATE JAKU VOLJU da dođe do ozdravljenja, ili poboljšanja zdravlja!

Kako će delovati pojedinačno zavisi od pojedinca, do pojedinca. Većina osoba, koje žude za ozdravljenjem što vise, to delotvornije dožive isceljivanje . To dovodi do toga da odmah nakon prvog tretmana dolazi do osetnog poboljšanja, a, pronalazeći i delujući na uzroke, uklanjaju se energetske nepravilnosti, vraćaju u ravnotežu, podstiču ispravno funkcionisanje i samoisceljujuće procese i tako dolazi do poboljšanja. Upravo je to ono što ovaj nacin isceljivanja čini tako efikasnim.Neko pokazuje odmah nakon prvog tretmana znatno poboljšanje, a kod nekih osoba poboljšanja se javljaju postepeno, kroz vreme.Takođe, osoba ne mora da veruje da će joj tretmani pomoći da bi osetila dobrobiti.Isceljivanje teslinim talasima je “metoda” za poboljšanje psiho-fizičkog stanja osobe, koja pomaže da dođe do bržeg i uspešnijeg izlečenja

Isceljivanje teslinom bioenergijom

Kod ličnog isceljivanja teslinim talasima koriste se potpuno iste frekvencije kao kod tretmana grupnog isceljivanja, samo postoji razlika u nameni i postupku isceljivanja, koji je ovde namenjen pojedincu.Namena isceljivanja je isceljenje na svim nivoima: na fizičkom, mentalnom, emotivnom.Često pitanje koje mi postavljate je :Šta se to događa prilikom ličnog isceljivanja teslinim talasima.

Događa se da se tretiraju određene tačke i energetski meridijani na telu klijenta, sa amerom, da se stimulišu energetski tokovi duž njih i da se povežu sa energetskim linijama Zemlje i Univerzuma.Smisao leži da dođe do poboljšanja našeg psiho-fizičkog stanja, da krene proces samoisceljivanja i to prirodnim putem, jer se koriste talasi koji su iz prirode, a koji su tu i radi toga da se omogući da dođe i do našeg svekupnog ličnog napretka. Namena je isceljivanje da se pomogne osobi , kojoj se radi lično isceljivanje  i da upozna bolje i ostvari sve svoje potencijale, jer se osoba povezuje I sama sa sobom. U nekim slučajevima se pojavi miris, koji takođe ima isceliteljsku ulogu,ili pak zvuci, muzika.Ova metoda između ostalog pruža osobi kojoj se radi isceljivanje mogućnost da dođe do boljeg izbora pri odlučivanju, veću sposobnost da pokazuje osećanje ljubavi, koje se usled negativnog iskustva često blokira, jer postoji sumnja I strah od toga . Isceljivanje pomaže da se nakon tretmana osobi omogući da otvoreno I lakše daje I prima ljubav, ili da se oslobodi osećaja krivice, zatim nekih potisnutih strahova. Doprinosi da se osoba manje sukobljava sama sa sobom I drugima. Neke osobe koje su imale blokiranu kreativnost postaju kreativnije. Ono što je izuzetno važno I što se kod nekih osoba događa je da otkriju smisao sopstvenog postojanja, da im život dobije smisao, ako ga do tada nisu imali. Događa se da prestaju unutrašnje blokade koje sprečavaju osobu da uživa u sadašnjem trenutku, I da lakše prevazilazi negativnosti u sebi, kada se one pojavljuju. Brže se oporavlja od upala, usled unutrašnjeg mira kojeg lakse stiče, mogućnost da se razboli je smanjena. Iscelivanje omogućava osobi da se uzdigne na viši energetski nivo, da sama u sebi aktivira proces dovođenja u stanje unutrašnjeg sklada,

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<?php
/**
 * Meta API: WP_Meta_Query class
 *
 * @package WordPress
 * @subpackage Meta
 * @since 4.4.0
 */

/**
 * Core class used to implement meta queries for the Meta API.
 *
 * Used for generating SQL clauses that filter a primary query according to metadata keys and values.
 *
 * WP_Meta_Query is a helper that allows primary query classes, such as WP_Query and WP_User_Query,
 *
 * to filter their results by object metadata, by generating `JOIN` and `WHERE` subclauses to be attached
 * to the primary SQL query string.
 *
 * @since 3.2.0
 * @package WordPress
 * @subpackage Meta
 */
class WP_Meta_Query {
	/**
	 * Array of metadata queries.
	 *
	 * See WP_Meta_Query::__construct() for information on meta query arguments.
	 *
	 * @since 3.2.0
	 * @access public
	 * @var array
	 */
	public $queries = array();

	/**
	 * The relation between the queries. Can be one of 'AND' or 'OR'.
	 *
	 * @since 3.2.0
	 * @access public
	 * @var string
	 */
	public $relation;

	/**
	 * Database table to query for the metadata.
	 *
	 * @since 4.1.0
	 * @access public
	 * @var string
	 */
	public $meta_table;

	/**
	 * Column in meta_table that represents the ID of the object the metadata belongs to.
	 *
	 * @since 4.1.0
	 * @access public
	 * @var string
	 */
	public $meta_id_column;

	/**
	 * Database table that where the metadata's objects are stored (eg $wpdb->users).
	 *
	 * @since 4.1.0
	 * @access public
	 * @var string
	 */
	public $primary_table;

	/**
	 * Column in primary_table that represents the ID of the object.
	 *
	 * @since 4.1.0
	 * @access public
	 * @var string
	 */
	public $primary_id_column;

	/**
	 * A flat list of table aliases used in JOIN clauses.
	 *
	 * @since 4.1.0
	 * @access protected
	 * @var array
	 */
	protected $table_aliases = array();

	/**
	 * A flat list of clauses, keyed by clause 'name'.
	 *
	 * @since 4.2.0
	 * @access protected
	 * @var array
	 */
	protected $clauses = array();

	/**
	 * Whether the query contains any OR relations.
	 *
	 * @since 4.3.0
	 * @access protected
	 * @var bool
	 */
	protected $has_or_relation = false;

	/**
	 * Constructor.
	 *
	 * @since 3.2.0
	 * @since 4.2.0 Introduced support for naming query clauses by associative array keys.
	 *
	 * @access public
	 *
	 * @param array $meta_query {
	 *     Array of meta query clauses. When first-order clauses or sub-clauses use strings as
	 *     their array keys, they may be referenced in the 'orderby' parameter of the parent query.
	 *
	 *     @type string $relation Optional. The MySQL keyword used to join
	 *                            the clauses of the query. Accepts 'AND', or 'OR'. Default 'AND'.
	 *     @type array {
	 *         Optional. An array of first-order clause parameters, or another fully-formed meta query.
	 *
	 *         @type string $key     Meta key to filter by.
	 *         @type string $value   Meta value to filter by.
	 *         @type string $compare MySQL operator used for comparing the $value. Accepts '=',
	 *                               '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE',
	 *                               'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN', 'REGEXP',
	 *                               'NOT REGEXP', 'RLIKE', 'EXISTS' or 'NOT EXISTS'.
	 *                               Default is 'IN' when `$value` is an array, '=' otherwise.
	 *         @type string $type    MySQL data type that the meta_value column will be CAST to for
	 *                               comparisons. Accepts 'NUMERIC', 'BINARY', 'CHAR', 'DATE',
	 *                               'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', or 'UNSIGNED'.
	 *                               Default is 'CHAR'.
	 *     }
	 * }
	 */
	public function __construct( $meta_query = false ) {
		if ( !$meta_query )
			return;

		if ( isset( $meta_query['relation'] ) && strtoupper( $meta_query['relation'] ) == 'OR' ) {
			$this->relation = 'OR';
		} else {
			$this->relation = 'AND';
		}

		$this->queries = $this->sanitize_query( $meta_query );
	}

	/**
	 * Ensure the 'meta_query' argument passed to the class constructor is well-formed.
	 *
	 * Eliminates empty items and ensures that a 'relation' is set.
	 *
	 * @since 4.1.0
	 * @access public
	 *
	 * @param array $queries Array of query clauses.
	 * @return array Sanitized array of query clauses.
	 */
	public function sanitize_query( $queries ) {
		$clean_queries = array();

		if ( ! is_array( $queries ) ) {
			return $clean_queries;
		}

		foreach ( $queries as $key => $query ) {
			if ( 'relation' === $key ) {
				$relation = $query;

			} elseif ( ! is_array( $query ) ) {
				continue;

			// First-order clause.
			} elseif ( $this->is_first_order_clause( $query ) ) {
				if ( isset( $query['value'] ) && array() === $query['value'] ) {
					unset( $query['value'] );
				}

				$clean_queries[ $key ] = $query;

			// Otherwise, it's a nested query, so we recurse.
			} else {
				$cleaned_query = $this->sanitize_query( $query );

				if ( ! empty( $cleaned_query ) ) {
					$clean_queries[ $key ] = $cleaned_query;
				}
			}
		}

		if ( empty( $clean_queries ) ) {
			return $clean_queries;
		}

		// Sanitize the 'relation' key provided in the query.
		if ( isset( $relation ) && 'OR' === strtoupper( $relation ) ) {
			$clean_queries['relation'] = 'OR';
			$this->has_or_relation = true;

		/*
		 * If there is only a single clause, call the relation 'OR'.
		 * This value will not actually be used to join clauses, but it
		 * simplifies the logic around combining key-only queries.
		 */
		} elseif ( 1 === count( $clean_queries ) ) {
			$clean_queries['relation'] = 'OR';

		// Default to AND.
		} else {
			$clean_queries['relation'] = 'AND';
		}

		return $clean_queries;
	}

	/**
	 * Determine whether a query clause is first-order.
	 *
	 * A first-order meta query clause is one that has either a 'key' or
	 * a 'value' array key.
	 *
	 * @since 4.1.0
	 * @access protected
	 *
	 * @param array $query Meta query arguments.
	 * @return bool Whether the query clause is a first-order clause.
	 */
	protected function is_first_order_clause( $query ) {
		return isset( $query['key'] ) || isset( $query['value'] );
	}

	/**
	 * Constructs a meta query based on 'meta_*' query vars
	 *
	 * @since 3.2.0
	 * @access public
	 *
	 * @param array $qv The query variables
	 */
	public function parse_query_vars( $qv ) {
		$meta_query = array();

		/*
		 * For orderby=meta_value to work correctly, simple query needs to be
		 * first (so that its table join is against an unaliased meta table) and
		 * needs to be its own clause (so it doesn't interfere with the logic of
		 * the rest of the meta_query).
		 */
		$primary_meta_query = array();
		foreach ( array( 'key', 'compare', 'type' ) as $key ) {
			if ( ! empty( $qv[ "meta_$key" ] ) ) {
				$primary_meta_query[ $key ] = $qv[ "meta_$key" ];
			}
		}

		// WP_Query sets 'meta_value' = '' by default.
		if ( isset( $qv['meta_value'] ) && '' !== $qv['meta_value'] && ( ! is_array( $qv['meta_value'] ) || $qv['meta_value'] ) ) {
			$primary_meta_query['value'] = $qv['meta_value'];
		}

		$existing_meta_query = isset( $qv['meta_query'] ) && is_array( $qv['meta_query'] ) ? $qv['meta_query'] : array();

		if ( ! empty( $primary_meta_query ) && ! empty( $existing_meta_query ) ) {
			$meta_query = array(
				'relation' => 'AND',
				$primary_meta_query,
				$existing_meta_query,
			);
		} elseif ( ! empty( $primary_meta_query ) ) {
			$meta_query = array(
				$primary_meta_query,
			);
		} elseif ( ! empty( $existing_meta_query ) ) {
			$meta_query = $existing_meta_query;
		}

		$this->__construct( $meta_query );
	}

	/**
	 * Return the appropriate alias for the given meta type if applicable.
	 *
	 * @since 3.7.0
	 * @access public
	 *
	 * @param string $type MySQL type to cast meta_value.
	 * @return string MySQL type.
	 */
	public function get_cast_for_type( $type = '' ) {
		if ( empty( $type ) )
			return 'CHAR';

		$meta_type = strtoupper( $type );

		if ( ! preg_match( '/^(?:BINARY|CHAR|DATE|DATETIME|SIGNED|UNSIGNED|TIME|NUMERIC(?:\(\d+(?:,\s?\d+)?\))?|DECIMAL(?:\(\d+(?:,\s?\d+)?\))?)$/', $meta_type ) )
			return 'CHAR';

		if ( 'NUMERIC' == $meta_type )
			$meta_type = 'SIGNED';

		return $meta_type;
	}

	/**
	 * Generates SQL clauses to be appended to a main query.
	 *
	 * @since 3.2.0
	 * @access public
	 *
	 * @param string $type              Type of meta, eg 'user', 'post'.
	 * @param string $primary_table     Database table where the object being filtered is stored (eg wp_users).
	 * @param string $primary_id_column ID column for the filtered object in $primary_table.
	 * @param object $context           Optional. The main query object.
	 * @return false|array {
	 *     Array containing JOIN and WHERE SQL clauses to append to the main query.
	 *
	 *     @type string $join  SQL fragment to append to the main JOIN clause.
	 *     @type string $where SQL fragment to append to the main WHERE clause.
	 * }
	 */
	public function get_sql( $type, $primary_table, $primary_id_column, $context = null ) {
		if ( ! $meta_table = _get_meta_table( $type ) ) {
			return false;
		}

		$this->table_aliases = array();

		$this->meta_table     = $meta_table;
		$this->meta_id_column = sanitize_key( $type . '_id' );

		$this->primary_table     = $primary_table;
		$this->primary_id_column = $primary_id_column;

		$sql = $this->get_sql_clauses();

		/*
		 * If any JOINs are LEFT JOINs (as in the case of NOT EXISTS), then all JOINs should
		 * be LEFT. Otherwise posts with no metadata will be excluded from results.
		 */
		if ( false !== strpos( $sql['join'], 'LEFT JOIN' ) ) {
			$sql['join'] = str_replace( 'INNER JOIN', 'LEFT JOIN', $sql['join'] );
		}

		/**
		 * Filters the meta query's generated SQL.
		 *
		 * @since 3.1.0
		 *
		 * @param array  $clauses           Array containing the query's JOIN and WHERE clauses.
		 * @param array  $queries           Array of meta queries.
		 * @param string $type              Type of meta.
		 * @param string $primary_table     Primary table.
		 * @param string $primary_id_column Primary column ID.
		 * @param object $context           The main query object.
		 */
		return apply_filters_ref_array( 'get_meta_sql', array( $sql, $this->queries, $type, $primary_table, $primary_id_column, $context ) );
	}

	/**
	 * Generate SQL clauses to be appended to a main query.
	 *
	 * Called by the public WP_Meta_Query::get_sql(), this method is abstracted
	 * out to maintain parity with the other Query classes.
	 *
	 * @since 4.1.0
	 * @access protected
	 *
	 * @return array {
	 *     Array containing JOIN and WHERE SQL clauses to append to the main query.
	 *
	 *     @type string $join  SQL fragment to append to the main JOIN clause.
	 *     @type string $where SQL fragment to append to the main WHERE clause.
	 * }
	 */
	protected function get_sql_clauses() {
		/*
		 * $queries are passed by reference to get_sql_for_query() for recursion.
		 * To keep $this->queries unaltered, pass a copy.
		 */
		$queries = $this->queries;
		$sql = $this->get_sql_for_query( $queries );

		if ( ! empty( $sql['where'] ) ) {
			$sql['where'] = ' AND ' . $sql['where'];
		}

		return $sql;
	}

	/**
	 * Generate SQL clauses for a single query array.
	 *
	 * If nested subqueries are found, this method recurses the tree to
	 * produce the properly nested SQL.
	 *
	 * @since 4.1.0
	 * @access protected
	 *
	 * @param array $query Query to parse, passed by reference.
	 * @param int   $depth Optional. Number of tree levels deep we currently are.
	 *                     Used to calculate indentation. Default 0.
	 * @return array {
	 *     Array containing JOIN and WHERE SQL clauses to append to a single query array.
	 *
	 *     @type string $join  SQL fragment to append to the main JOIN clause.
	 *     @type string $where SQL fragment to append to the main WHERE clause.
	 * }
	 */
	protected function get_sql_for_query( &$query, $depth = 0 ) {
		$sql_chunks = array(
			'join'  => array(),
			'where' => array(),
		);

		$sql = array(
			'join'  => '',
			'where' => '',
		);

		$indent = '';
		for ( $i = 0; $i < $depth; $i++ ) {
			$indent .= "  ";
		}

		foreach ( $query as $key => &$clause ) {
			if ( 'relation' === $key ) {
				$relation = $query['relation'];
			} elseif ( is_array( $clause ) ) {

				// This is a first-order clause.
				if ( $this->is_first_order_clause( $clause ) ) {
					$clause_sql = $this->get_sql_for_clause( $clause, $query, $key );

					$where_count = count( $clause_sql['where'] );
					if ( ! $where_count ) {
						$sql_chunks['where'][] = '';
					} elseif ( 1 === $where_count ) {
						$sql_chunks['where'][] = $clause_sql['where'][0];
					} else {
						$sql_chunks['where'][] = '( ' . implode( ' AND ', $clause_sql['where'] ) . ' )';
					}

					$sql_chunks['join'] = array_merge( $sql_chunks['join'], $clause_sql['join'] );
				// This is a subquery, so we recurse.
				} else {
					$clause_sql = $this->get_sql_for_query( $clause, $depth + 1 );

					$sql_chunks['where'][] = $clause_sql['where'];
					$sql_chunks['join'][]  = $clause_sql['join'];
				}
			}
		}

		// Filter to remove empties.
		$sql_chunks['join']  = array_filter( $sql_chunks['join'] );
		$sql_chunks['where'] = array_filter( $sql_chunks['where'] );

		if ( empty( $relation ) ) {
			$relation = 'AND';
		}

		// Filter duplicate JOIN clauses and combine into a single string.
		if ( ! empty( $sql_chunks['join'] ) ) {
			$sql['join'] = implode( ' ', array_unique( $sql_chunks['join'] ) );
		}

		// Generate a single WHERE clause with proper brackets and indentation.
		if ( ! empty( $sql_chunks['where'] ) ) {
			$sql['where'] = '( ' . "\n  " . $indent . implode( ' ' . "\n  " . $indent . $relation . ' ' . "\n  " . $indent, $sql_chunks['where'] ) . "\n" . $indent . ')';
		}

		return $sql;
	}

	/**
	 * Generate SQL JOIN and WHERE clauses for a first-order query clause.
	 *
	 * "First-order" means that it's an array with a 'key' or 'value'.
	 *
	 * @since 4.1.0
	 * @access public
	 *
	 * @global wpdb $wpdb WordPress database abstraction object.
	 *
	 * @param array  $clause       Query clause, passed by reference.
	 * @param array  $parent_query Parent query array.
	 * @param string $clause_key   Optional. The array key used to name the clause in the original `$meta_query`
	 *                             parameters. If not provided, a key will be generated automatically.
	 * @return array {
	 *     Array containing JOIN and WHERE SQL clauses to append to a first-order query.
	 *
	 *     @type string $join  SQL fragment to append to the main JOIN clause.
	 *     @type string $where SQL fragment to append to the main WHERE clause.
	 * }
	 */
	public function get_sql_for_clause( &$clause, $parent_query, $clause_key = '' ) {
		global $wpdb;

		$sql_chunks = array(
			'where' => array(),
			'join' => array(),
		);

		if ( isset( $clause['compare'] ) ) {
			$clause['compare'] = strtoupper( $clause['compare'] );
		} else {
			$clause['compare'] = isset( $clause['value'] ) && is_array( $clause['value'] ) ? 'IN' : '=';
		}

		if ( ! in_array( $clause['compare'], array(
			'=', '!=', '>', '>=', '<', '<=',
			'LIKE', 'NOT LIKE',
			'IN', 'NOT IN',
			'BETWEEN', 'NOT BETWEEN',
			'EXISTS', 'NOT EXISTS',
			'REGEXP', 'NOT REGEXP', 'RLIKE'
		) ) ) {
			$clause['compare'] = '=';
		}

		$meta_compare = $clause['compare'];

		// First build the JOIN clause, if one is required.
		$join = '';

		// We prefer to avoid joins if possible. Look for an existing join compatible with this clause.
		$alias = $this->find_compatible_table_alias( $clause, $parent_query );
		if ( false === $alias ) {
			$i = count( $this->table_aliases );
			$alias = $i ? 'mt' . $i : $this->meta_table;

			// JOIN clauses for NOT EXISTS have their own syntax.
			if ( 'NOT EXISTS' === $meta_compare ) {
				$join .= " LEFT JOIN $this->meta_table";
				$join .= $i ? " AS $alias" : '';
				$join .= $wpdb->prepare( " ON ($this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column AND $alias.meta_key = %s )", $clause['key'] );

			// All other JOIN clauses.
			} else {
				$join .= " INNER JOIN $this->meta_table";
				$join .= $i ? " AS $alias" : '';
				$join .= " ON ( $this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column )";
			}

			$this->table_aliases[] = $alias;
			$sql_chunks['join'][] = $join;
		}

		// Save the alias to this clause, for future siblings to find.
		$clause['alias'] = $alias;

		// Determine the data type.
		$_meta_type = isset( $clause['type'] ) ? $clause['type'] : '';
		$meta_type  = $this->get_cast_for_type( $_meta_type );
		$clause['cast'] = $meta_type;

		// Fallback for clause keys is the table alias. Key must be a string.
		if ( is_int( $clause_key ) || ! $clause_key ) {
			$clause_key = $clause['alias'];
		}

		// Ensure unique clause keys, so none are overwritten.
		$iterator = 1;
		$clause_key_base = $clause_key;
		while ( isset( $this->clauses[ $clause_key ] ) ) {
			$clause_key = $clause_key_base . '-' . $iterator;
			$iterator++;
		}

		// Store the clause in our flat array.
		$this->clauses[ $clause_key ] =& $clause;

		// Next, build the WHERE clause.

		// meta_key.
		if ( array_key_exists( 'key', $clause ) ) {
			if ( 'NOT EXISTS' === $meta_compare ) {
				$sql_chunks['where'][] = $alias . '.' . $this->meta_id_column . ' IS NULL';
			} else {
				$sql_chunks['where'][] = $wpdb->prepare( "$alias.meta_key = %s", trim( $clause['key'] ) );
			}
		}

		// meta_value.
		if ( array_key_exists( 'value', $clause ) ) {
			$meta_value = $clause['value'];

			if ( in_array( $meta_compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {
				if ( ! is_array( $meta_value ) ) {
					$meta_value = preg_split( '/[,\s]+/', $meta_value );
				}
			} else {
				$meta_value = trim( $meta_value );
			}

			switch ( $meta_compare ) {
				case 'IN' :
				case 'NOT IN' :
					$meta_compare_string = '(' . substr( str_repeat( ',%s', count( $meta_value ) ), 1 ) . ')';
					$where = $wpdb->prepare( $meta_compare_string, $meta_value );
					break;

				case 'BETWEEN' :
				case 'NOT BETWEEN' :
					$meta_value = array_slice( $meta_value, 0, 2 );
					$where = $wpdb->prepare( '%s AND %s', $meta_value );
					break;

				case 'LIKE' :
				case 'NOT LIKE' :
					$meta_value = '%' . $wpdb->esc_like( $meta_value ) . '%';
					$where = $wpdb->prepare( '%s', $meta_value );
					break;

				// EXISTS with a value is interpreted as '='.
				case 'EXISTS' :
					$meta_compare = '=';
					$where = $wpdb->prepare( '%s', $meta_value );
					break;

				// 'value' is ignored for NOT EXISTS.
				case 'NOT EXISTS' :
					$where = '';
					break;

				default :
					$where = $wpdb->prepare( '%s', $meta_value );
					break;

			}

			if ( $where ) {
				if ( 'CHAR' === $meta_type ) {
					$sql_chunks['where'][] = "$alias.meta_value {$meta_compare} {$where}";
				} else {
					$sql_chunks['where'][] = "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$where}";
				}
			}
		}

		/*
		 * Multiple WHERE clauses (for meta_key and meta_value) should
		 * be joined in parentheses.
		 */
		if ( 1 < count( $sql_chunks['where'] ) ) {
			$sql_chunks['where'] = array( '( ' . implode( ' AND ', $sql_chunks['where'] ) . ' )' );
		}

		return $sql_chunks;
	}

	/**
	 * Get a flattened list of sanitized meta clauses.
	 *
	 * This array should be used for clause lookup, as when the table alias and CAST type must be determined for
	 * a value of 'orderby' corresponding to a meta clause.
	 *
	 * @since 4.2.0
	 * @access public
	 *
	 * @return array Meta clauses.
	 */
	public function get_clauses() {
		return $this->clauses;
	}

	/**
	 * Identify an existing table alias that is compatible with the current
	 * query clause.
	 *
	 * We avoid unnecessary table joins by allowing each clause to look for
	 * an existing table alias that is compatible with the query that it
	 * needs to perform.
	 *
	 * An existing alias is compatible if (a) it is a sibling of `$clause`
	 * (ie, it's under the scope of the same relation), and (b) the combination
	 * of operator and relation between the clauses allows for a shared table join.
	 * In the case of WP_Meta_Query, this only applies to 'IN' clauses that are
	 * connected by the relation 'OR'.
	 *
	 * @since 4.1.0
	 * @access protected
	 *
	 * @param  array       $clause       Query clause.
	 * @param  array       $parent_query Parent query of $clause.
	 * @return string|bool Table alias if found, otherwise false.
	 */
	protected function find_compatible_table_alias( $clause, $parent_query ) {
		$alias = false;

		foreach ( $parent_query as $sibling ) {
			// If the sibling has no alias yet, there's nothing to check.
			if ( empty( $sibling['alias'] ) ) {
				continue;
			}

			// We're only interested in siblings that are first-order clauses.
			if ( ! is_array( $sibling ) || ! $this->is_first_order_clause( $sibling ) ) {
				continue;
			}

			$compatible_compares = array();

			// Clauses connected by OR can share joins as long as they have "positive" operators.
			if ( 'OR' === $parent_query['relation'] ) {
				$compatible_compares = array( '=', 'IN', 'BETWEEN', 'LIKE', 'REGEXP', 'RLIKE', '>', '>=', '<', '<=' );

			// Clauses joined by AND with "negative" operators share a join only if they also share a key.
			} elseif ( isset( $sibling['key'] ) && isset( $clause['key'] ) && $sibling['key'] === $clause['key'] ) {
				$compatible_compares = array( '!=', 'NOT IN', 'NOT LIKE' );
			}

			$clause_compare  = strtoupper( $clause['compare'] );
			$sibling_compare = strtoupper( $sibling['compare'] );
			if ( in_array( $clause_compare, $compatible_compares ) && in_array( $sibling_compare, $compatible_compares ) ) {
				$alias = $sibling['alias'];
				break;
			}
		}

		/**
		 * Filters the table alias identified as compatible with the current clause.
		 *
		 * @since 4.1.0
		 *
		 * @param string|bool $alias        Table alias, or false if none was found.
		 * @param array       $clause       First-order query clause.
		 * @param array       $parent_query Parent of $clause.
		 * @param object      $this         WP_Meta_Query object.
		 */
		return apply_filters( 'meta_query_find_compatible_table_alias', $alias, $clause, $parent_query, $this ) ;
	}

	/**
	 * Checks whether the current query has any OR relations.
	 *
	 * In some cases, the presence of an OR relation somewhere in the query will require
	 * the use of a `DISTINCT` or `GROUP BY` keyword in the `SELECT` clause. The current
	 * method can be used in these cases to determine whether such a clause is necessary.
	 *
	 * @since 4.3.0
	 *
	 * @return bool True if the query contains any `OR` relations, otherwise false.
	 */
	public function has_or_relation() {
		return $this->has_or_relation;
	}
}

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