/
orm.php
2544 lines (2277 loc) · 67.2 KB
/
orm.php
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<?php
namespace Yoast\WP\Lib;
use ReturnTypeWillChange;
use wpdb;
use Yoast\WP\SEO\Config\Migration_Status;
/**
* Yoast ORM class.
*
* Based on Idiorm
*
* URL: http://github.com/j4mie/idiorm/
*
* A single-class super-simple database abstraction layer for PHP.
* Provides (nearly) zero-configuration object-relational mapping
* and a fluent interface for building basic, commonly-used queries.
*
* BSD Licensed.
*
* Copyright (c) 2010, Jamie Matthews
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The methods documented below are magic methods that conform to PSR-1.
* This documentation exposes these methods to doc generators and IDEs.
*
* @see http://www.php-fig.org/psr/psr-1/
*/
class ORM implements \ArrayAccess {
/*
* --- CLASS CONSTANTS ---
*/
const CONDITION_FRAGMENT = 0;
const CONDITION_VALUES = 1;
/*
* --- INSTANCE PROPERTIES ---
*/
/**
* Holds the class name. Wrapped find_one and find_many classes will return an instance or instances of this class.
*
* @var string
*/
protected $class_name;
/**
* Holds the name of the table the current ORM instance is associated with.
*
* @var string
*/
protected $table_name;
/**
* Holds the alias for the table to be used in SELECT queries.
*
* @var string
*/
protected $table_alias = null;
/**
* Values to be bound to the query.
*
* @var array
*/
protected $values = [];
/**
* Columns to select in the result.
*
* @var array
*/
protected $result_columns = [ '*' ];
/**
* Are we using the default result column or have these been manually changed?
*
* @var bool
*/
protected $using_default_result_columns = true;
/**
* Holds the join sources.
*
* @var array
*/
protected $join_sources = [];
/**
* Should the query include a DISTINCT keyword?
*
* @var bool
*/
protected $distinct = false;
/**
* Is this a raw query?
*
* @var bool
*/
protected $is_raw_query = false;
/**
* The raw query.
*
* @var string
*/
protected $raw_query = '';
/**
* The raw query parameters.
*
* @var array
*/
protected $raw_parameters = [];
/**
* Array of WHERE clauses.
*
* @var array
*/
protected $where_conditions = [];
/**
* LIMIT.
*
* @var int
*/
protected $limit = null;
/**
* OFFSET.
*
* @var int
*/
protected $offset = null;
/**
* ORDER BY.
*
* @var array
*/
protected $order_by = [];
/**
* GROUP BY.
*
* @var array
*/
protected $group_by = [];
/**
* HAVING.
*
* @var array
*/
protected $having_conditions = [];
/**
* The data for a hydrated instance of the class.
*
* @var array
*/
protected $data = [];
/**
* Lifetime of the object.
*
* @var array
*/
protected $dirty_fields = [];
/**
* Fields that are to be inserted in the DB raw.
*
* @var array
*/
protected $expr_fields = [];
/**
* Is this a new object (has create() been called)?
*
* @var bool
*/
protected $is_new = false;
/**
* Name of the column to use as the primary key for
* this instance only. Overrides the config settings.
*
* @var string
*/
protected $instance_id_column = null;
/*
* --- STATIC METHODS ---
*/
/**
* Factory method, return an instance of this class bound to the supplied
* table name.
*
* A repeat of content in parent::for_table, so that created class is ORM.
*
* @param string $table_name The table to create instance for.
*
* @return ORM Instance of the ORM.
*/
public static function for_table( $table_name ) {
return new static( $table_name, [] );
}
/**
* Executes a raw query as a wrapper for wpdb::query.
* Useful for queries that can't be accomplished through Idiorm,
* particularly those using engine-specific features.
*
* @example raw_execute('INSERT OR REPLACE INTO `widget` (`id`, `name`) SELECT `id`, `name` FROM `other_table`')
* @example raw_execute('SELECT `name`, AVG(`order`) FROM `customer` GROUP BY `name` HAVING AVG(`order`) > 10')
*
* @param string $query The raw SQL query.
* @param array $parameters Optional bound parameters.
*
* @return bool Success.
*/
public static function raw_execute( $query, $parameters = [] ) {
return self::execute( $query, $parameters );
}
/**
* Internal helper method for executing statements.
*
* @param string $query The query.
* @param array $parameters An array of parameters to be bound in to the query.
*
* @return bool|int Response of wpdb::query
*/
protected static function execute( $query, $parameters = [] ) {
/**
* The global WordPress database variable.
*
* @var wpdb
*/
global $wpdb;
$show_errors = $wpdb->show_errors;
if ( YoastSEO()->classes->get( Migration_Status::class )->get_error( 'free' ) ) {
$wpdb->show_errors = false;
}
$parameters = \array_filter(
$parameters,
static function( $parameter ) {
return $parameter !== null;
}
);
if ( ! empty( $parameters ) ) {
$query = $wpdb->prepare( $query, $parameters );
}
$result = $wpdb->query( $query );
$wpdb->show_errors = $show_errors;
return $result;
}
/*
* --- INSTANCE METHODS ---
*/
/**
* "Private" constructor; shouldn't be called directly.
* Use the ORM::for_table factory method instead.
*
* @param string $table_name Table name.
* @param array $data Data to populate table.
*/
protected function __construct( $table_name, $data = [] ) {
$this->table_name = $table_name;
$this->data = $data;
}
/**
* Sets the name of the class which the wrapped methods should return instances of.
*
* @param string $class_name The classname to set.
*
* @return void
*/
public function set_class_name( $class_name ) {
$this->class_name = $class_name;
}
/**
* Creates a new, empty instance of the class. Used to add a new row to your database. May optionally be passed an
* associative array of data to populate the instance. If so, all fields will be flagged as dirty so all will be
* saved to the database when save() is called.
*
* @param array|null $data Data to populate table.
*
* @return bool|Model|ORM
*/
public function create( $data = null ) {
$this->is_new = true;
if ( ! \is_null( $data ) ) {
$this->hydrate( $data )->force_all_dirty();
}
return $this->create_model_instance( $this );
}
/**
* Specifies the ID column to use for this instance or array of instances only.
* This overrides the id_column and id_column_overrides settings.
*
* This is mostly useful for libraries built on top of Idiorm, and will not normally be used in manually built
* queries. If you don't know why you would want to use this, you should probably just ignore it.
*
* @param string $id_column The ID column.
*
* @return ORM
*/
public function use_id_column( $id_column ) {
$this->instance_id_column = $id_column;
return $this;
}
/**
* Creates an ORM instance from the given row (an associative array of data fetched from the database).
*
* @param array $row A row from the database.
*
* @return bool|Model
*/
protected function create_instance_from_row( $row ) {
$instance = self::for_table( $this->table_name );
$instance->use_id_column( $this->instance_id_column );
$instance->hydrate( $row );
return $this->create_model_instance( $instance );
}
/**
* Tells the ORM that you are expecting a single result back from your query, and execute it. Will return a single
* instance of the ORM class, or false if no rows were returned. As a shortcut, you may supply an ID as a parameter
* to this method. This will perform a primary key lookup on the table.
*
* @param int|null $id An (optional) ID.
*
* @return bool|Model
*/
public function find_one( $id = null ) {
if ( ! \is_null( $id ) ) {
$this->where_id_is( $id );
}
$this->limit( 1 );
$rows = $this->run();
if ( empty( $rows ) ) {
return false;
}
return $this->create_instance_from_row( $rows[0] );
}
/**
* Tells the ORM that you are expecting multiple results from your query, and execute it. Will return an array of
* instances of the ORM class, or an empty array if no rows were returned.
*
* @return array
*/
public function find_many() {
$rows = $this->run();
if ( $rows === false ) {
return [];
}
return \array_map( [ $this, 'create_instance_from_row' ], $rows );
}
/**
* Creates an instance of the model class associated with this wrapper and populate it with the supplied Idiorm
* instance.
*
* @param ORM $orm The ORM used by model.
*
* @return bool|Model Instance of the model class.
*/
protected function create_model_instance( $orm ) {
if ( $orm === false ) {
return false;
}
/**
* An instance of Model is being made.
*
* @var Model $model
*/
$model = new $this->class_name();
$model->set_orm( $orm );
return $model;
}
/**
* Tells the ORM that you are expecting multiple results from your query, and execute it. Will return an array, or
* an empty array if no rows were returned.
*
* @return array The query results.
*/
public function find_array() {
return $this->run();
}
/**
* Tells the ORM that you wish to execute a COUNT query.
*
* @param string $column The table column.
*
* @return float|int An integer representing the number of rows returned.
*/
public function count( $column = '*' ) {
return $this->call_aggregate_db_function( __FUNCTION__, $column );
}
/**
* Tells the ORM that you wish to execute a MAX query.
*
* @param string $column The table column.
*
* @return float|int The max value of the chosen column.
*/
public function max( $column ) {
return $this->call_aggregate_db_function( __FUNCTION__, $column );
}
/**
* Tells the ORM that you wish to execute a MIN query.
*
* @param string $column The table column.
*
* @return float|int The min value of the chosen column.
*/
public function min( $column ) {
return $this->call_aggregate_db_function( __FUNCTION__, $column );
}
/**
* Tells the ORM that you wish to execute a AVG query.
*
* @param string $column The table column.
*
* @return float|int The average value of the chosen column.
*/
public function avg( $column ) {
return $this->call_aggregate_db_function( __FUNCTION__, $column );
}
/**
* Tells the ORM that you wish to execute a SUM query.
*
* @param string $column The table column.
*
* @return float|int The sum of the chosen column.
*/
public function sum( $column ) {
return $this->call_aggregate_db_function( __FUNCTION__, $column );
}
/**
* Returns the select query as SQL.
*
* @return string The select query in SQL.
*/
public function get_sql() {
return $this->build_select();
}
/**
* Returns the update query as SQL.
*
* @return string The update query in SQL.
*/
public function get_update_sql() {
return $this->build_update();
}
/**
* Executes an aggregate query on the current connection.
*
* @param string $sql_function The aggregate function to call eg. MIN, COUNT, etc.
* @param string $column The column to execute the aggregate query against.
*
* @return int
*/
protected function call_aggregate_db_function( $sql_function, $column ) {
$alias = \strtolower( $sql_function );
$sql_function = \strtoupper( $sql_function );
if ( $column !== '*' ) {
$column = $this->quote_identifier( $column );
}
$result_columns = $this->result_columns;
$this->result_columns = [];
$this->select_expr( "{$sql_function}({$column})", $alias );
$result = $this->find_one();
$this->result_columns = $result_columns;
$return_value = 0;
if ( $result !== false && isset( $result->{$alias} ) ) {
if ( ! \is_numeric( $result->{$alias} ) ) {
$return_value = $result->{$alias};
}
// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison -- Reason: This loose comparison seems intended.
elseif ( (int) $result->{$alias} == (float) $result->{$alias} ) {
$return_value = (int) $result->{$alias};
}
else {
$return_value = (float) $result->{$alias};
}
}
return $return_value;
}
/**
* Hydrates (populate) this instance of the class from an associative array of data. This will usually be called
* only from inside the class, but it's public in case you need to call it directly.
*
* @param array $data Data to populate table.
*
* @return ORM
*/
public function hydrate( $data = [] ) {
$this->data = $data;
return $this;
}
/**
* Forces the ORM to flag all the fields in the $data array as "dirty" and therefore update them when save() is
* called.
*
* @return ORM
*/
public function force_all_dirty() {
$this->dirty_fields = $this->data;
return $this;
}
/**
* Performs a raw query. The query can contain placeholders in either named or question mark style. If placeholders
* are used, the parameters should be an array of values which will be bound to the placeholders in the query.
* If this method is called, all other query building methods will be ignored.
*
* @param array $query The query.
* @param array $parameters The parameters. Defaults to an empty array.
*
* @return ORM
*/
public function raw_query( $query, $parameters = [] ) {
$this->is_raw_query = true;
$this->raw_query = $query;
$this->raw_parameters = $parameters;
return $this;
}
/**
* Adds an alias for the main table to be used in SELECT queries.
*
* @param string $alias The alias.
*
* @return ORM
*/
public function table_alias( $alias ) {
$this->table_alias = $alias;
return $this;
}
/**
* Adds an unquoted expression to the set of columns returned by the SELECT query. Internal method.
*
* @param string $expr The expression.
* @param string|null $alias The alias to return the expression as. Defaults to null.
*
* @return ORM
*/
protected function add_result_column( $expr, $alias = null ) {
if ( ! \is_null( $alias ) ) {
$expr .= ' AS ' . $this->quote_identifier( $alias );
}
if ( $this->using_default_result_columns ) {
$this->result_columns = [ $expr ];
$this->using_default_result_columns = false;
}
else {
$this->result_columns[] = $expr;
}
return $this;
}
/**
* Counts the number of columns that belong to the primary key and their value is null.
*
* @return int The amount of null columns.
*
* @throws \Exception Primary key ID contains null value(s).
* @throws \Exception Primary key ID missing from row or is null.
*/
public function count_null_id_columns() {
if ( \is_array( $this->get_id_column_name() ) ) {
return \count( \array_filter( $this->id(), 'is_null' ) );
}
else {
return \is_null( $this->id() ) ? 1 : 0;
}
}
/**
* Adds a column to the list of columns returned by the SELECT query.
*
* @param string $column The column. Defaults to '*'.
* @param string|null $alias The alias to return the column as. Defaults to null.
*
* @return ORM
*/
public function select( $column, $alias = null ) {
$column = $this->quote_identifier( $column );
return $this->add_result_column( $column, $alias );
}
/**
* Adds an unquoted expression to the list of columns returned by the SELECT query.
*
* @param string $expr The expression.
* @param string|null $alias The alias to return the column as. Defaults to null.
*
* @return ORM
*/
public function select_expr( $expr, $alias = null ) {
return $this->add_result_column( $expr, $alias );
}
/**
* Adds columns to the list of columns returned by the SELECT query.
*
* This defaults to '*'.
* Many columns can be supplied as either an array or as a list of parameters to the method.
* Note that the alias must not be numeric - if you want a numeric alias then prepend it with some alpha chars. eg.
* a1.
*
* @example select_many(array('column', 'column2', 'column3'), 'column4', 'column5');
* @example select_many(array('alias' => 'column', 'column2', 'alias2' => 'column3'), 'column4', 'column5');
* @example select_many('column', 'column2', 'column3');
*
* @return ORM
*/
public function select_many() {
$columns = \func_get_args();
if ( ! empty( $columns ) ) {
$columns = $this->normalise_select_many_columns( $columns );
foreach ( $columns as $alias => $column ) {
if ( \is_numeric( $alias ) ) {
$alias = null;
}
$this->select( $column, $alias );
}
}
return $this;
}
/**
* Adds an unquoted expression to the list of columns returned by the SELECT query.
*
* Many columns can be supplied as either an array or as a list of parameters to the method.
* Note that the alias must not be numeric - if you want a numeric alias then prepend it with some alpha chars. eg.
* a1
*
* @example select_many_expr(array('alias' => 'column', 'column2', 'alias2' => 'column3'), 'column4', 'column5')
* @example select_many_expr('column', 'column2', 'column3')
* @example select_many_expr(array('column', 'column2', 'column3'), 'column4', 'column5')
*
* @return ORM
*/
public function select_many_expr() {
$columns = \func_get_args();
if ( ! empty( $columns ) ) {
$columns = $this->normalise_select_many_columns( $columns );
foreach ( $columns as $alias => $column ) {
if ( \is_numeric( $alias ) ) {
$alias = null;
}
$this->select_expr( $column, $alias );
}
}
return $this;
}
/**
* Takes a column specification for the select many methods and convert it into a normalised array of columns and
* aliases.
*
* It is designed to turn the following styles into a normalised array:
* array(array('alias' => 'column', 'column2', 'alias2' => 'column3'), 'column4', 'column5'))
*
* @param array $columns The columns.
*
* @return array
*/
protected function normalise_select_many_columns( $columns ) {
$return = [];
foreach ( $columns as $column ) {
if ( \is_array( $column ) ) {
foreach ( $column as $key => $value ) {
if ( ! \is_numeric( $key ) ) {
$return[ $key ] = $value;
}
else {
$return[] = $value;
}
}
}
else {
$return[] = $column;
}
}
return $return;
}
/**
* Adds a DISTINCT keyword before the list of columns in the SELECT query.
*
* @return ORM
*/
public function distinct() {
$this->distinct = true;
return $this;
}
/**
* Add a JOIN source to the query. Internal method.
*
* The join_operator should be one of INNER, LEFT OUTER, CROSS etc - this
* will be prepended to JOIN.
*
* The table should be the name of the table to join to.
*
* The constraint may be either a string or an array with three elements. If it
* is a string, it will be compiled into the query as-is, with no escaping. The
* recommended way to supply the constraint is as an array with three elements:
*
* first_column, operator, second_column
*
* Example: array('user.id', '=', 'profile.user_id')
*
* will compile to
*
* ON `user`.`id` = `profile`.`user_id`
*
* The final (optional) argument specifies an alias for the joined table.
*
* @param string $join_operator The join_operator should be one of INNER, LEFT OUTER, CROSS etc - this will be
* prepended to JOIN.
* @param string $table The table should be the name of the table to join to.
* @param string $constraint The constraint.
* @param string|null $table_alias The alias for the joined table. Defaults to null.
*
* @return ORM
*/
protected function add_join_source( $join_operator, $table, $constraint, $table_alias = null ) {
$join_operator = \trim( "{$join_operator} JOIN" );
$table = $this->quote_identifier( $table );
// Add table alias if present.
if ( ! \is_null( $table_alias ) ) {
$table_alias = $this->quote_identifier( $table_alias );
$table .= " {$table_alias}";
}
// Build the constraint.
if ( \is_array( $constraint ) ) {
list( $first_column, $operator, $second_column ) = $constraint;
$first_column = $this->quote_identifier( $first_column );
$second_column = $this->quote_identifier( $second_column );
$constraint = "{$first_column} {$operator} {$second_column}";
}
$this->join_sources[] = "{$join_operator} {$table} ON {$constraint}";
return $this;
}
/**
* Adds a RAW JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string $table_alias The table alias.
* @param array $parameters The parameters. Defaults to an empty array.
*
* @return ORM
*/
public function raw_join( $table, $constraint, $table_alias, $parameters = [] ) {
// Add table alias if present.
if ( ! \is_null( $table_alias ) ) {
$table_alias = $this->quote_identifier( $table_alias );
$table .= " {$table_alias}";
}
$this->values = \array_merge( $this->values, $parameters );
// Build the constraint.
if ( \is_array( $constraint ) ) {
list( $first_column, $operator, $second_column ) = $constraint;
$first_column = $this->quote_identifier( $first_column );
$second_column = $this->quote_identifier( $second_column );
$constraint = "{$first_column} {$operator} {$second_column}";
}
$this->join_sources[] = "{$table} ON {$constraint}";
return $this;
}
/**
* Adds a simple JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string|null $table_alias The table alias. Defaults to null.
*
* @return ORM
*/
public function join( $table, $constraint, $table_alias = null ) {
return $this->add_join_source( '', $table, $constraint, $table_alias );
}
/**
* Adds an INNER JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string|null $table_alias The table alias. Defaults to null.
*
* @return ORM
*/
public function inner_join( $table, $constraint, $table_alias = null ) {
return $this->add_join_source( 'INNER', $table, $constraint, $table_alias );
}
/**
* Adds a LEFT OUTER JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string|null $table_alias The table alias. Defaults to null.
*
* @return ORM
*/
public function left_outer_join( $table, $constraint, $table_alias = null ) {
return $this->add_join_source( 'LEFT OUTER', $table, $constraint, $table_alias );
}
/**
* Adds a RIGHT OUTER JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string|null $table_alias The table alias. Defaults to null.
*
* @return ORM
*/
public function right_outer_join( $table, $constraint, $table_alias = null ) {
return $this->add_join_source( 'RIGHT OUTER', $table, $constraint, $table_alias );
}
/**
* Adds a FULL OUTER JOIN source to the query.
*
* @param string $table The table name.
* @param string $constraint The constraint.
* @param string|null $table_alias The table alias. Defaults to null.
*
* @return ORM
*/
public function full_outer_join( $table, $constraint, $table_alias = null ) {
return $this->add_join_source( 'FULL OUTER', $table, $constraint, $table_alias );
}
/**
* Adds a HAVING condition to the query. Internal method.
*
* @param string $fragment The fragment.
* @param array $values The values. Defaults to an empty array.
*
* @return ORM
*/
protected function add_having( $fragment, $values = [] ) {
return $this->add_condition( 'having', $fragment, $values );
}
/**
* Adds a HAVING condition to the query. Internal method.
*
* @param string $column_name The table column.
* @param string $separator The separator.
* @param mixed $value The value.
*
* @return ORM
*/
protected function add_simple_having( $column_name, $separator, $value ) {
return $this->add_simple_condition( 'having', $column_name, $separator, $value );
}
/**
* Adds a HAVING clause with multiple values (like IN and NOT IN). Internal method.
*
* @param string|array $column_name The table column.
* @param string $separator The separator.
* @param array $values The values.
*
* @return ORM
*/
public function add_having_placeholder( $column_name, $separator, $values ) {
if ( ! \is_array( $column_name ) ) {
$data = [ $column_name => $values ];
}
else {
$data = $column_name;
}
$result = $this;
foreach ( $data as $key => $val ) {
$column = $result->quote_identifier( $key );
$placeholders = $result->create_placeholders( $val );
$result = $result->add_having( "{$column} {$separator} ({$placeholders})", $val );
}
return $result;
}
/**
* Adds a HAVING clause with no parameters(like IS NULL and IS NOT NULL). Internal method.
*
* @param string $column_name The column name.
* @param string $operator The operator.
*
* @return ORM
*/
public function add_having_no_value( $column_name, $operator ) {
$conditions = \is_array( $column_name ) ? $column_name : [ $column_name ];
$result = $this;
foreach ( $conditions as $column ) {
$column = $this->quote_identifier( $column );
$result = $result->add_having( "{$column} {$operator}" );
}
return $result;
}
/**
* Adds a WHERE condition to the query. Internal method.
*
* @param string $fragment The fragment.
* @param array $values The values. Defaults to an empty array.
*
* @return ORM
*/
protected function add_where( $fragment, $values = [] ) {
return $this->add_condition( 'where', $fragment, $values );