Schema::findSchemaNames() - Code Metrics - Inspection of "Merge branch 'master' into fix-numbervalidator-com..." - yiisoft/yii2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — fix-numbervalidator-comma-deci... ( cad400...eee7b9 )

by Alexander

created 2017-01-15 19:41 UTC

Schema::findSchemaNames() A

↳ Parent: Schema

Complexity

Conditions	1
Paths	1

Size

Total Lines	10
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	10
rs	9.4285
c	0
b	0
f	0
ccs	3
cts	3
cp	1
cc	1
eloc	5
nc	1
nop	0
crap	1

<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\db\pgsql;

use yii\db\Expression;
use yii\db\TableSchema;
use yii\db\ColumnSchema;

/**
 * Schema is the class for retrieving metadata from a PostgreSQL database
 * (version 9.x and above).
 *
 * @property string[] $viewNames All view names in the database. This property is read-only.
 *
 * @author Gevik Babakhani <[email protected]>
 * @since 2.0
 */
class Schema extends \yii\db\Schema
{
    /**
     * @var string the default schema used for the current session.
     */
    public $defaultSchema = 'public';
    /**
     * @var array mapping from physical column types (keys) to abstract
     * column types (values)
     * @see http://www.postgresql.org/docs/current/static/datatype.html#DATATYPE-TABLE
     */
    public $typeMap = [
        'bit' => self::TYPE_INTEGER,
        'bit varying' => self::TYPE_INTEGER,
        'varbit' => self::TYPE_INTEGER,

        'bool' => self::TYPE_BOOLEAN,
        'boolean' => self::TYPE_BOOLEAN,

        'box' => self::TYPE_STRING,
        'circle' => self::TYPE_STRING,
        'point' => self::TYPE_STRING,
        'line' => self::TYPE_STRING,
        'lseg' => self::TYPE_STRING,
        'polygon' => self::TYPE_STRING,
        'path' => self::TYPE_STRING,

        'character' => self::TYPE_CHAR,
        'char' => self::TYPE_CHAR,
        'bpchar' => self::TYPE_CHAR,
        'character varying' => self::TYPE_STRING,
        'varchar' => self::TYPE_STRING,
        'text' => self::TYPE_TEXT,

        'bytea' => self::TYPE_BINARY,

        'cidr' => self::TYPE_STRING,
        'inet' => self::TYPE_STRING,
        'macaddr' => self::TYPE_STRING,

        'real' => self::TYPE_FLOAT,
        'float4' => self::TYPE_FLOAT,
        'double precision' => self::TYPE_DOUBLE,
        'float8' => self::TYPE_DOUBLE,
        'decimal' => self::TYPE_DECIMAL,
        'numeric' => self::TYPE_DECIMAL,

        'money' => self::TYPE_MONEY,

        'smallint' => self::TYPE_SMALLINT,
        'int2' => self::TYPE_SMALLINT,
        'int4' => self::TYPE_INTEGER,
        'int' => self::TYPE_INTEGER,
        'integer' => self::TYPE_INTEGER,
        'bigint' => self::TYPE_BIGINT,
        'int8' => self::TYPE_BIGINT,
        'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!

        'smallserial' => self::TYPE_SMALLINT,
        'serial2' => self::TYPE_SMALLINT,
        'serial4' => self::TYPE_INTEGER,
        'serial' => self::TYPE_INTEGER,
        'bigserial' => self::TYPE_BIGINT,
        'serial8' => self::TYPE_BIGINT,
        'pg_lsn' => self::TYPE_BIGINT,

        'date' => self::TYPE_DATE,
        'interval' => self::TYPE_STRING,
        'time without time zone' => self::TYPE_TIME,
        'time' => self::TYPE_TIME,
        'time with time zone' => self::TYPE_TIME,
        'timetz' => self::TYPE_TIME,
        'timestamp without time zone' => self::TYPE_TIMESTAMP,
        'timestamp' => self::TYPE_TIMESTAMP,
        'timestamp with time zone' => self::TYPE_TIMESTAMP,
        'timestamptz' => self::TYPE_TIMESTAMP,
        'abstime' => self::TYPE_TIMESTAMP,

        'tsquery' => self::TYPE_STRING,
        'tsvector' => self::TYPE_STRING,
        'txid_snapshot' => self::TYPE_STRING,

        'unknown' => self::TYPE_STRING,

        'uuid' => self::TYPE_STRING,
        'json' => self::TYPE_STRING,
        'jsonb' => self::TYPE_STRING,
        'xml' => self::TYPE_STRING,
    ];

    /**
     * @var array list of ALL view names in the database
     */
    private $_viewNames = [];


    /**
     * Creates a query builder for the PostgreSQL database.
     * @return QueryBuilder query builder instance
     */
    public function createQueryBuilder()
    {
        return new QueryBuilder($this->db);
    }

    /**
     * Resolves the table name and schema name (if any).
     * @param TableSchema $table the table metadata object
     * @param string $name the table name
     */
    protected function resolveTableNames($table, $name)
    {
        $parts = explode('.', str_replace('"', '', $name));

        if (isset($parts[1])) {
            $table->schemaName = $parts[0];
            $table->name = $parts[1];
        } else {
            $table->schemaName = $this->defaultSchema;
            $table->name = $name;
        }

        $table->fullName = $table->schemaName !== $this->defaultSchema ? $table->schemaName . '.' . $table->name : $table->name;
    }

    /**
     * Quotes a table name for use in a query.
     * A simple table name has no schema prefix.
     * @param string $name table name
     * @return string the properly quoted table name
     */
    public function quoteSimpleTableName($name)
    {
        return strpos($name, '"') !== false ? $name : '"' . $name . '"';
    }

    /**
     * Loads the metadata for the specified table.
     * @param string $name table name
     * @return TableSchema|null driver dependent table metadata. Null if the table does not exist.
     */
    public function loadTableSchema($name)
    {
        $table = new TableSchema();
        $this->resolveTableNames($table, $name);
        if ($this->findColumns($table)) {
            $this->findConstraints($table);
            return $table;
        } else {
            return null;
        }
    }

    /**
     * Returns all schema names in the database, including the default one but not system schemas.
     * This method should be overridden by child classes in order to support this feature
     * because the default implementation simply throws an exception.
     * @return array all schema names in the database, except system schemas
     * @since 2.0.4
     */
    protected function findSchemaNames()
    {
        $sql = <<<SQL
SELECT ns.nspname AS schema_name
FROM pg_namespace ns
WHERE ns.nspname != 'information_schema' AND ns.nspname NOT LIKE 'pg_%'
ORDER BY ns.nspname
SQL;
        return $this->db->createCommand($sql)->queryColumn();
    }

    /**
     * Returns all table names in the database.
     * @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema.
     * @return array all table names in the database. The names have NO schema name prefix.
     */
    protected function findTableNames($schema = '')
    {
        if ($schema === '') {
            $schema = $this->defaultSchema;
        }
        $sql = <<<SQL
SELECT c.relname AS table_name
FROM pg_class c
INNER JOIN pg_namespace ns ON ns.oid = c.relnamespace
WHERE ns.nspname = :schemaName AND c.relkind IN ('r','v','m','f')
ORDER BY c.relname
SQL;
        return $this->db->createCommand($sql, [':schemaName' => $schema])->queryColumn();
    }

    /**
     * Returns all views names in the database.
     * @param string $schema the schema of the views. Defaults to empty string, meaning the current or default schema.
     * @return array all views names in the database. The names have NO schema name prefix.
     * @since 2.0.9
     */
    protected function findViewNames($schema = '')
    {
        if ($schema === '') {
            $schema = $this->defaultSchema;
        }
        $sql = <<<SQL
SELECT c.relname AS table_name
FROM pg_class c
INNER JOIN pg_namespace ns ON ns.oid = c.relnamespace
WHERE ns.nspname = :schemaName AND c.relkind = 'v'
ORDER BY c.relname
SQL;
        return $this->db->createCommand($sql, [':schemaName' => $schema])->queryColumn();
    }

    /**
     * Returns all view names in the database.
     * @param string $schema the schema of the views. Defaults to empty string, meaning the current or default schema name.
     * If not empty, the returned view names will be prefixed with the schema name.
     * @param bool $refresh whether to fetch the latest available view names. If this is false,
     * view names fetched previously (if available) will be returned.
     * @return string[] all view names in the database.
     * @since 2.0.9
     */
    public function getViewNames($schema = '', $refresh = false)
    {
        if (!isset($this->_viewNames[$schema]) || $refresh) {
            $this->_viewNames[$schema] = $this->findViewNames($schema);
        }

        return $this->_viewNames[$schema];
    }

    /**
     * Collects the foreign key column details for the given table.
     * @param TableSchema $table the table metadata
     */
    protected function findConstraints($table)
    {
        $tableName = $this->quoteValue($table->name);
        $tableSchema = $this->quoteValue($table->schemaName);

        //We need to extract the constraints de hard way since:
        //http://www.postgresql.org/message-id/[email protected]

        $sql = <<<SQL
select
    ct.conname as constraint_name,
    a.attname as column_name,
    fc.relname as foreign_table_name,
    fns.nspname as foreign_table_schema,
    fa.attname as foreign_column_name
from
    (SELECT ct.conname, ct.conrelid, ct.confrelid, ct.conkey, ct.contype, ct.confkey, generate_subscripts(ct.conkey, 1) AS s
       FROM pg_constraint ct
    ) AS ct
    inner join pg_class c on c.oid=ct.conrelid
    inner join pg_namespace ns on c.relnamespace=ns.oid
    inner join pg_attribute a on a.attrelid=ct.conrelid and a.attnum = ct.conkey[ct.s]
    left join pg_class fc on fc.oid=ct.confrelid
    left join pg_namespace fns on fc.relnamespace=fns.oid
    left join pg_attribute fa on fa.attrelid=ct.confrelid and fa.attnum = ct.confkey[ct.s]
where
    ct.contype='f'
    and c.relname={$tableName}
    and ns.nspname={$tableSchema}
order by
    fns.nspname, fc.relname, a.attnum
SQL;

        $constraints = [];
        foreach ($this->db->createCommand($sql)->queryAll() as $constraint) {
            if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
                $constraint = array_change_key_case($constraint, CASE_LOWER);
            }
            if ($constraint['foreign_table_schema'] !== $this->defaultSchema) {
                $foreignTable = $constraint['foreign_table_schema'] . '.' . $constraint['foreign_table_name'];
            } else {
                $foreignTable = $constraint['foreign_table_name'];
            }
            $name = $constraint['constraint_name'];
            if (!isset($constraints[$name])) {
                $constraints[$name] = [
                    'tableName' => $foreignTable,
                    'columns' => [],
                ];
            }
            $constraints[$name]['columns'][$constraint['column_name']] = $constraint['foreign_column_name'];
        }
        foreach ($constraints as $constraint) {
            $table->foreignKeys[] = array_merge([$constraint['tableName']], $constraint['columns']);
        }
    }

    /**
     * Gets information about given table unique indexes.
     * @param TableSchema $table the table metadata
     * @return array with index and column names
     */
    protected function getUniqueIndexInformation($table)
    {
        $sql = <<<SQL
SELECT
    i.relname as indexname,
    pg_get_indexdef(idx.indexrelid, k + 1, TRUE) AS columnname
FROM (
  SELECT *, generate_subscripts(indkey, 1) AS k
  FROM pg_index
) idx
INNER JOIN pg_class i ON i.oid = idx.indexrelid
INNER JOIN pg_class c ON c.oid = idx.indrelid
INNER JOIN pg_namespace ns ON c.relnamespace = ns.oid
WHERE idx.indisprimary = FALSE AND idx.indisunique = TRUE
AND c.relname = :tableName AND ns.nspname = :schemaName
ORDER BY i.relname, k
SQL;

        return $this->db->createCommand($sql, [
            ':schemaName' => $table->schemaName,
            ':tableName' => $table->name,
        ])->queryAll();
    }

    /**
     * Returns all unique indexes for the given table.
     * Each array element is of the following structure:
     *
     * ```php
     * [
     *     'IndexName1' => ['col1' [, ...]],
     *     'IndexName2' => ['col2' [, ...]],
     * ]
     * ```
     *
     * @param TableSchema $table the table metadata
     * @return array all unique indexes for the given table.
     */
    public function findUniqueIndexes($table)
    {
        $uniqueIndexes = [];

        $rows = $this->getUniqueIndexInformation($table);
        foreach ($rows as $row) {
            if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
                $row = array_change_key_case($row, CASE_LOWER);
            }
            $column = $row['columnname'];
            if (!empty($column) && $column[0] === '"') {
                // postgres will quote names that are not lowercase-only
                // https://github.com/yiisoft/yii2/issues/10613
                $column = substr($column, 1, -1);
            }
            $uniqueIndexes[$row['indexname']][] = $column;
        }

        return $uniqueIndexes;
    }

    /**
     * Collects the metadata of table columns.
     * @param TableSchema $table the table metadata
     * @return bool whether the table exists in the database
     */
    protected function findColumns($table)
    {
        $tableName = $this->db->quoteValue($table->name);
        $schemaName = $this->db->quoteValue($table->schemaName);
        $sql = <<<SQL
SELECT
    d.nspname AS table_schema,
    c.relname AS table_name,
    a.attname AS column_name,
    t.typname AS data_type,
    a.attlen AS character_maximum_length,
    pg_catalog.col_description(c.oid, a.attnum) AS column_comment,
    a.atttypmod AS modifier,
    a.attnotnull = false AS is_nullable,
    CAST(pg_get_expr(ad.adbin, ad.adrelid) AS varchar) AS column_default,
    coalesce(pg_get_expr(ad.adbin, ad.adrelid) ~ 'nextval',false) AS is_autoinc,
    array_to_string((select array_agg(enumlabel) from pg_enum where enumtypid=a.atttypid)::varchar[],',') as enum_values,
    CASE atttypid
         WHEN 21 /*int2*/ THEN 16
         WHEN 23 /*int4*/ THEN 32
         WHEN 20 /*int8*/ THEN 64
         WHEN 1700 /*numeric*/ THEN
              CASE WHEN atttypmod = -1
               THEN null
               ELSE ((atttypmod - 4) >> 16) & 65535
               END
         WHEN 700 /*float4*/ THEN 24 /*FLT_MANT_DIG*/
         WHEN 701 /*float8*/ THEN 53 /*DBL_MANT_DIG*/
         ELSE null
      END   AS numeric_precision,
      CASE
        WHEN atttypid IN (21, 23, 20) THEN 0
        WHEN atttypid IN (1700) THEN
        CASE
            WHEN atttypmod = -1 THEN null
            ELSE (atttypmod - 4) & 65535
        END
           ELSE null
      END AS numeric_scale,
    CAST(
             information_schema._pg_char_max_length(information_schema._pg_truetypid(a, t), information_schema._pg_truetypmod(a, t))
             AS numeric
    ) AS size,
    a.attnum = any (ct.conkey) as is_pkey
FROM
    pg_class c
    LEFT JOIN pg_attribute a ON a.attrelid = c.oid
    LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
    LEFT JOIN pg_type t ON a.atttypid = t.oid
    LEFT JOIN pg_namespace d ON d.oid = c.relnamespace
    LEFT join pg_constraint ct on ct.conrelid=c.oid and ct.contype='p'
WHERE
    a.attnum > 0 and t.typname != ''
    and c.relname = {$tableName}
    and d.nspname = {$schemaName}
ORDER BY
    a.attnum;
SQL;

        $columns = $this->db->createCommand($sql)->queryAll();
        if (empty($columns)) {
            return false;
        }
        foreach ($columns as $column) {
            if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
                $column = array_change_key_case($column, CASE_LOWER);
            }
            $column = $this->loadColumnSchema($column);
            $table->columns[$column->name] = $column;
            if ($column->isPrimaryKey) {
                $table->primaryKey[] = $column->name;
                if ($table->sequenceName === null && preg_match("/nextval\\('\"?\\w+\"?\.?\"?\\w+\"?'(::regclass)?\\)/", $column->defaultValue) === 1) {
                    $table->sequenceName = preg_replace(['/nextval/', '/::/', '/regclass/', '/\'\)/', '/\(\'/'], '', $column->defaultValue);
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
                }
                $column->defaultValue = null;
            } elseif ($column->defaultValue) {
                if ($column->type === 'timestamp' && $column->defaultValue === 'now()') {
                    $column->defaultValue = new Expression($column->defaultValue);
                } elseif ($column->type === 'boolean') {
                        $column->defaultValue = ($column->defaultValue === 'true');
                } elseif (stripos($column->dbType, 'bit') === 0 || stripos($column->dbType, 'varbit') === 0) {
                    $column->defaultValue = bindec(trim($column->defaultValue, 'B\''));
                } elseif (preg_match("/^'(.*?)'::/", $column->defaultValue, $matches)) {
                    $column->defaultValue = $matches[1];
                } elseif (preg_match('/^(?:\()?(.*?)(?(1)\))(?:::.+)?$/', $column->defaultValue, $matches)) {
                    if ($matches[1] === 'NULL') {
                        $column->defaultValue = null;
                    } else {
                        $column->defaultValue = $column->phpTypecast($matches[1]);
                    }
                } else {
                    $column->defaultValue = $column->phpTypecast($column->defaultValue);
                }
            }
        }

        return true;
    }

    /**
     * Loads the column information into a [[ColumnSchema]] object.
     * @param array $info column information
     * @return ColumnSchema the column schema object
     */
    protected function loadColumnSchema($info)
    {
        $column = $this->createColumnSchema();
        $column->allowNull = $info['is_nullable'];
        $column->autoIncrement = $info['is_autoinc'];
        $column->comment = $info['column_comment'];
        $column->dbType = $info['data_type'];
        $column->defaultValue = $info['column_default'];
        $column->enumValues = ($info['enum_values'] !== null) ? explode(',', str_replace(["''"], ["'"], $info['enum_values'])) : null;
function aContainsB(array $needle = null, array  $haystack) {
    if (!$needle) {
        return false;
    }

    return array_intersect($haystack, $needle) == $haystack;
}
        $column->unsigned = false; // has no meaning in PG
        $column->isPrimaryKey = $info['is_pkey'];
        $column->name = $info['column_name'];
        $column->precision = $info['numeric_precision'];
        $column->scale = $info['numeric_scale'];
        $column->size = $info['size'] === null ? null : (int) $info['size'];
        if (isset($this->typeMap[$column->dbType])) {
            $column->type = $this->typeMap[$column->dbType];
        } else {
            $column->type = self::TYPE_STRING;
        }
        $column->phpType = $this->getColumnPhpType($column);

        return $column;
    }

    /**
     * @inheritdoc
     */
    public function insert($table, $columns)
    {
        $params = [];
        $sql = $this->db->getQueryBuilder()->insert($table, $columns, $params);
        $returnColumns = $this->getTableSchema($table)->primaryKey;
        if (!empty($returnColumns)) {
            $returning = [];
            foreach ((array) $returnColumns as $name) {
                $returning[] = $this->quoteColumnName($name);
            }
            $sql .= ' RETURNING ' . implode(', ', $returning);
        }

        $command = $this->db->createCommand($sql, $params);
        $command->prepare(false);
        $result = $command->queryOne();

        return !$command->pdoStatement->rowCount() ? false : $result;
    }
}


1		<?php
2		/**
3		* @link http://www.yiiframework.com/
4		* @copyright Copyright (c) 2008 Yii Software LLC
5		* @license http://www.yiiframework.com/license/
6		*/
7
8		namespace yii\db\pgsql;
9
10		use yii\db\Expression;
11		use yii\db\TableSchema;
12		use yii\db\ColumnSchema;
13
14		/**
15		* Schema is the class for retrieving metadata from a PostgreSQL database
16		* (version 9.x and above).
17		*
18		* @property string[] $viewNames All view names in the database. This property is read-only.
19		*
20		* @author Gevik Babakhani <[email protected]>
21		* @since 2.0
22		*/
23		class Schema extends \yii\db\Schema
24		{
25		/**
26		* @var string the default schema used for the current session.
27		*/
28		public $defaultSchema = 'public';
29		/**
30		* @var array mapping from physical column types (keys) to abstract
31		* column types (values)
32		* @see http://www.postgresql.org/docs/current/static/datatype.html#DATATYPE-TABLE
33		*/
34		public $typeMap = [
35		'bit' => self::TYPE_INTEGER,
36		'bit varying' => self::TYPE_INTEGER,
37		'varbit' => self::TYPE_INTEGER,
38
39		'bool' => self::TYPE_BOOLEAN,
40		'boolean' => self::TYPE_BOOLEAN,
41
42		'box' => self::TYPE_STRING,
43		'circle' => self::TYPE_STRING,
44		'point' => self::TYPE_STRING,
45		'line' => self::TYPE_STRING,
46		'lseg' => self::TYPE_STRING,
47		'polygon' => self::TYPE_STRING,
48		'path' => self::TYPE_STRING,
49
50		'character' => self::TYPE_CHAR,
51		'char' => self::TYPE_CHAR,
52		'bpchar' => self::TYPE_CHAR,
53		'character varying' => self::TYPE_STRING,
54		'varchar' => self::TYPE_STRING,
55		'text' => self::TYPE_TEXT,
56
57		'bytea' => self::TYPE_BINARY,
58
59		'cidr' => self::TYPE_STRING,
60		'inet' => self::TYPE_STRING,
61		'macaddr' => self::TYPE_STRING,
62
63		'real' => self::TYPE_FLOAT,
64		'float4' => self::TYPE_FLOAT,
65		'double precision' => self::TYPE_DOUBLE,
66		'float8' => self::TYPE_DOUBLE,
67		'decimal' => self::TYPE_DECIMAL,
68		'numeric' => self::TYPE_DECIMAL,
69
70		'money' => self::TYPE_MONEY,
71
72		'smallint' => self::TYPE_SMALLINT,
73		'int2' => self::TYPE_SMALLINT,
74		'int4' => self::TYPE_INTEGER,
75		'int' => self::TYPE_INTEGER,
76		'integer' => self::TYPE_INTEGER,
77		'bigint' => self::TYPE_BIGINT,
78		'int8' => self::TYPE_BIGINT,
79		'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!
80
81		'smallserial' => self::TYPE_SMALLINT,
82		'serial2' => self::TYPE_SMALLINT,
83		'serial4' => self::TYPE_INTEGER,
84		'serial' => self::TYPE_INTEGER,
85		'bigserial' => self::TYPE_BIGINT,
86		'serial8' => self::TYPE_BIGINT,
87		'pg_lsn' => self::TYPE_BIGINT,
88
89		'date' => self::TYPE_DATE,
90		'interval' => self::TYPE_STRING,
91		'time without time zone' => self::TYPE_TIME,
92		'time' => self::TYPE_TIME,
93		'time with time zone' => self::TYPE_TIME,
94		'timetz' => self::TYPE_TIME,
95		'timestamp without time zone' => self::TYPE_TIMESTAMP,
96		'timestamp' => self::TYPE_TIMESTAMP,
97		'timestamp with time zone' => self::TYPE_TIMESTAMP,
98		'timestamptz' => self::TYPE_TIMESTAMP,
99		'abstime' => self::TYPE_TIMESTAMP,
100
101		'tsquery' => self::TYPE_STRING,
102		'tsvector' => self::TYPE_STRING,
103		'txid_snapshot' => self::TYPE_STRING,
104
105		'unknown' => self::TYPE_STRING,
106
107		'uuid' => self::TYPE_STRING,
108		'json' => self::TYPE_STRING,
109		'jsonb' => self::TYPE_STRING,
110		'xml' => self::TYPE_STRING,
111		];
112
113		/**
114		* @var array list of ALL view names in the database
115		*/
116		private $_viewNames = [];
117
118
119		/**
120		* Creates a query builder for the PostgreSQL database.
121		* @return QueryBuilder query builder instance
122		*/
123	146	public function createQueryBuilder()
124		{
125	146	return new QueryBuilder($this->db);
126		}
127
128		/**
129		* Resolves the table name and schema name (if any).
130		* @param TableSchema $table the table metadata object
131		* @param string $name the table name
132		*/
133	133	protected function resolveTableNames($table, $name)
134		{
135	133	$parts = explode('.', str_replace('"', '', $name));
136
137	133	if (isset($parts[1])) {
138		$table->schemaName = $parts[0];
139		$table->name = $parts[1];
140		} else {
141	133	$table->schemaName = $this->defaultSchema;
142	133	$table->name = $name;
143		}
144
145	133	$table->fullName = $table->schemaName !== $this->defaultSchema ? $table->schemaName . '.' . $table->name : $table->name;
146	133	}
147
148		/**
149		* Quotes a table name for use in a query.
150		* A simple table name has no schema prefix.
151		* @param string $name table name
152		* @return string the properly quoted table name
153		*/
154	183	public function quoteSimpleTableName($name)
155		{
156	183	return strpos($name, '"') !== false ? $name : '"' . $name . '"';
157		}
158
159		/**
160		* Loads the metadata for the specified table.
161		* @param string $name table name
162		* @return TableSchema\|null driver dependent table metadata. Null if the table does not exist.
163		*/
164	133	public function loadTableSchema($name)
165		{
166	133	$table = new TableSchema();
167	133	$this->resolveTableNames($table, $name);
168	133	if ($this->findColumns($table)) {
169	130	$this->findConstraints($table);
170		return $table;
171	130	} else {
172		return null;
173	8	}
174		}
175
176		/**
177		* Returns all schema names in the database, including the default one but not system schemas.
178		* This method should be overridden by child classes in order to support this feature
179		* because the default implementation simply throws an exception.
180		* @return array all schema names in the database, except system schemas
181		* @since 2.0.4
182		*/
183		protected function findSchemaNames()
184	1	{
185		$sql = <<<SQL
186		SELECT ns.nspname AS schema_name
187		FROM pg_namespace ns
188		WHERE ns.nspname != 'information_schema' AND ns.nspname NOT LIKE 'pg_%'
189		ORDER BY ns.nspname
190		SQL;
191	1	return $this->db->createCommand($sql)->queryColumn();
192	1	}
193
194		/**
195		* Returns all table names in the database.
196		* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema.
197		* @return array all table names in the database. The names have NO schema name prefix.
198		*/
199		protected function findTableNames($schema = '')
200	7	{
201		if ($schema === '') {
202	7	$schema = $this->defaultSchema;
203	5	}
204	5	$sql = <<<SQL
205		SELECT c.relname AS table_name
206		FROM pg_class c
207		INNER JOIN pg_namespace ns ON ns.oid = c.relnamespace
208		WHERE ns.nspname = :schemaName AND c.relkind IN ('r','v','m','f')
209		ORDER BY c.relname
210		SQL;
211	7	return $this->db->createCommand($sql, [':schemaName' => $schema])->queryColumn();
212	7	}
213	7
214	7	/**
215	7	* Returns all views names in the database.
216	7	* @param string $schema the schema of the views. Defaults to empty string, meaning the current or default schema.
217	7	* @return array all views names in the database. The names have NO schema name prefix.
218		* @since 2.0.9
219	7	*/
220		protected function findViewNames($schema = '')
221		{
222		if ($schema === '') {
223		$schema = $this->defaultSchema;
224		}
225		$sql = <<<SQL
226		SELECT c.relname AS table_name
227		FROM pg_class c
228	2	INNER JOIN pg_namespace ns ON ns.oid = c.relnamespace
229		WHERE ns.nspname = :schemaName AND c.relkind = 'v'
230	2	ORDER BY c.relname
231		SQL;
232		return $this->db->createCommand($sql, [':schemaName' => $schema])->queryColumn();
233		}
234
235		/**
236		* Returns all view names in the database.
237		* @param string $schema the schema of the views. Defaults to empty string, meaning the current or default schema name.
238		* If not empty, the returned view names will be prefixed with the schema name.
239	2	* @param bool $refresh whether to fetch the latest available view names. If this is false,
240	2	* view names fetched previously (if available) will be returned.
241	2	* @return string[] all view names in the database.
242	2	* @since 2.0.9
243	2	*/
244	2	public function getViewNames($schema = '', $refresh = false)
245	2	{
246		if (!isset($this->_viewNames[$schema]) \|\| $refresh) {
247	2	$this->_viewNames[$schema] = $this->findViewNames($schema);
248		}
249
250		return $this->_viewNames[$schema];
251		}
252
253		/**
254		* Collects the foreign key column details for the given table.
255		* @param TableSchema $table the table metadata
256		*/
257		protected function findConstraints($table)
258		{
259	2	$tableName = $this->quoteValue($table->name);
260		$tableSchema = $this->quoteValue($table->schemaName);
261	2
262	2	//We need to extract the constraints de hard way since:
263	2	//http://www.postgresql.org/message-id/[email protected]
264
265	2	$sql = <<<SQL
266		select
267		ct.conname as constraint_name,
268		a.attname as column_name,
269		fc.relname as foreign_table_name,
270		fns.nspname as foreign_table_schema,
271		fa.attname as foreign_column_name
272	130	from
273		(SELECT ct.conname, ct.conrelid, ct.confrelid, ct.conkey, ct.contype, ct.confkey, generate_subscripts(ct.conkey, 1) AS s
274		FROM pg_constraint ct
275	130	) AS ct
276	130	inner join pg_class c on c.oid=ct.conrelid
277		inner join pg_namespace ns on c.relnamespace=ns.oid
278		inner join pg_attribute a on a.attrelid=ct.conrelid and a.attnum = ct.conkey[ct.s]
279		left join pg_class fc on fc.oid=ct.confrelid
280		left join pg_namespace fns on fc.relnamespace=fns.oid
281		left join pg_attribute fa on fa.attrelid=ct.confrelid and fa.attnum = ct.confkey[ct.s]
282		where
283		ct.contype='f'
284		and c.relname={$tableName}
285		and ns.nspname={$tableSchema}
286		order by
287		fns.nspname, fc.relname, a.attnum
288		SQL;
289
290		$constraints = [];
291		foreach ($this->db->createCommand($sql)->queryAll() as $constraint) {
292		if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
293		$constraint = array_change_key_case($constraint, CASE_LOWER);
294		}
295		if ($constraint['foreign_table_schema'] !== $this->defaultSchema) {
296		$foreignTable = $constraint['foreign_table_schema'] . '.' . $constraint['foreign_table_name'];
297		} else {
298		$foreignTable = $constraint['foreign_table_name'];
299		}
300	130	$name = $constraint['constraint_name'];
301	130	if (!isset($constraints[$name])) {
302		$constraints[$name] = [
303	130	'tableName' => $foreignTable,
304	130	'columns' => [],
305		];
306	130	}
307	130	$constraints[$name]['columns'][$constraint['column_name']] = $constraint['foreign_column_name'];
308	54	}
309		foreach ($constraints as $constraint) {
310		$table->foreignKeys[] = array_merge([$constraint['tableName']], $constraint['columns']);
311	54	}
312		}
313	54
314	54	/**
315	54	* Gets information about given table unique indexes.
316	54	* @param TableSchema $table the table metadata
317	54	* @return array with index and column names
318		*/
319	54	protected function getUniqueIndexInformation($table)
320	54	{
321	130	$sql = <<<SQL
322	130	SELECT
323	54	i.relname as indexname,
324	130	pg_get_indexdef(idx.indexrelid, k + 1, TRUE) AS columnname
325	130	FROM (
326		SELECT *, generate_subscripts(indkey, 1) AS k
327		FROM pg_index
328		) idx
329		INNER JOIN pg_class i ON i.oid = idx.indexrelid
330		INNER JOIN pg_class c ON c.oid = idx.indrelid
331		INNER JOIN pg_namespace ns ON c.relnamespace = ns.oid
332	1	WHERE idx.indisprimary = FALSE AND idx.indisunique = TRUE
333		AND c.relname = :tableName AND ns.nspname = :schemaName
334		ORDER BY i.relname, k
335		SQL;
336
337		return $this->db->createCommand($sql, [
338		':schemaName' => $table->schemaName,
339		':tableName' => $table->name,
340		])->queryAll();
341		}
342
343		/**
344		* Returns all unique indexes for the given table.
345		* Each array element is of the following structure:
346		*
347		* ```php
348	1	* [
349		* 'IndexName1' => ['col1' [, ...]],
350	1	* 'IndexName2' => ['col2' [, ...]],
351	1	* ]
352	1	* ```
353	1	*
354		* @param TableSchema $table the table metadata
355		* @return array all unique indexes for the given table.
356		*/
357		public function findUniqueIndexes($table)
358		{
359		$uniqueIndexes = [];
360
361		$rows = $this->getUniqueIndexInformation($table);
362		foreach ($rows as $row) {
363		if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
364		$row = array_change_key_case($row, CASE_LOWER);
365		}
366		$column = $row['columnname'];
367		if (!empty($column) && $column[0] === '"') {
368		// postgres will quote names that are not lowercase-only
369		// https://github.com/yiisoft/yii2/issues/10613
370	1	$column = substr($column, 1, -1);
371		}
372	1	$uniqueIndexes[$row['indexname']][] = $column;
373		}
374	1
375	1	return $uniqueIndexes;
376	1	}
377	1
378		/**
379		* Collects the metadata of table columns.
380	1	* @param TableSchema $table the table metadata
381	1	* @return bool whether the table exists in the database
382	1	*/
383	1	protected function findColumns($table)
384		{
385	1	$tableName = $this->db->quoteValue($table->name);
386		$schemaName = $this->db->quoteValue($table->schemaName);
387		$sql = <<<SQL
388		SELECT
389		d.nspname AS table_schema,
390		c.relname AS table_name,
391		a.attname AS column_name,
392		t.typname AS data_type,
393	133	a.attlen AS character_maximum_length,
394		pg_catalog.col_description(c.oid, a.attnum) AS column_comment,
395	133	a.atttypmod AS modifier,
396	133	a.attnotnull = false AS is_nullable,
397		CAST(pg_get_expr(ad.adbin, ad.adrelid) AS varchar) AS column_default,
398		coalesce(pg_get_expr(ad.adbin, ad.adrelid) ~ 'nextval',false) AS is_autoinc,
399		array_to_string((select array_agg(enumlabel) from pg_enum where enumtypid=a.atttypid)::varchar[],',') as enum_values,
400		CASE atttypid
401		WHEN 21 /int2/ THEN 16
402		WHEN 23 /int4/ THEN 32
403		WHEN 20 /int8/ THEN 64
404		WHEN 1700 /numeric/ THEN
405		CASE WHEN atttypmod = -1
406		THEN null
407		ELSE ((atttypmod - 4) >> 16) & 65535
408		END
409		WHEN 700 /float4/ THEN 24 /FLT_MANT_DIG/
410		WHEN 701 /float8/ THEN 53 /DBL_MANT_DIG/
411		ELSE null
412		END AS numeric_precision,
413		CASE
414		WHEN atttypid IN (21, 23, 20) THEN 0
415		WHEN atttypid IN (1700) THEN
416		CASE
417		WHEN atttypmod = -1 THEN null
418		ELSE (atttypmod - 4) & 65535
419		END
420		ELSE null
421		END AS numeric_scale,
422		CAST(
423		information_schema._pg_char_max_length(information_schema._pg_truetypid(a, t), information_schema._pg_truetypmod(a, t))
424		AS numeric
425		) AS size,
426		a.attnum = any (ct.conkey) as is_pkey
427		FROM
428		pg_class c
429		LEFT JOIN pg_attribute a ON a.attrelid = c.oid
430		LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
431		LEFT JOIN pg_type t ON a.atttypid = t.oid
432		LEFT JOIN pg_namespace d ON d.oid = c.relnamespace
433		LEFT join pg_constraint ct on ct.conrelid=c.oid and ct.contype='p'
434		WHERE
435		a.attnum > 0 and t.typname != ''
436		and c.relname = {$tableName}
437		and d.nspname = {$schemaName}
438		ORDER BY
439		a.attnum;
440		SQL;
441
442		$columns = $this->db->createCommand($sql)->queryAll();
443		if (empty($columns)) {
444		return false;
445		}
446	133	foreach ($columns as $column) {
447	133	if ($this->db->slavePdo->getAttribute(\PDO::ATTR_CASE) === \PDO::CASE_UPPER) {
448		$column = array_change_key_case($column, CASE_LOWER);
449	133	}
450	133	$column = $this->loadColumnSchema($column);
451		$table->columns[$column->name] = $column;
452	133	if ($column->isPrimaryKey) {
453	133	$table->primaryKey[] = $column->name;
454	8	if ($table->sequenceName === null && preg_match("/nextval\\('\"?\\w+\"?\.?\"?\\w+\"?'(::regclass)?\\)/", $column->defaultValue) === 1) {
455		$table->sequenceName = preg_replace(['/nextval/', '/::/', '/regclass/', '/\'\)/', '/\(\'/'], '', $column->defaultValue);
		0 ignored issues – show Documentation Bug introduced 2015-11-20 21:52 UTC by Report Bug Copy Issue Report It seems like `preg_replace(array('/nex... $column->defaultValue)` can also be of type `array<integer,string>`. However, the property `$sequenceName` is declared as type `string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
456	130	}
457	130	$column->defaultValue = null;
458	130	} elseif ($column->defaultValue) {
459	130	if ($column->type === 'timestamp' && $column->defaultValue === 'now()') {
460	113	$column->defaultValue = new Expression($column->defaultValue);
461	113	} elseif ($column->type === 'boolean') {
462	104	$column->defaultValue = ($column->defaultValue === 'true');
463	104	} elseif (stripos($column->dbType, 'bit') === 0 \|\| stripos($column->dbType, 'varbit') === 0) {
464	113	$column->defaultValue = bindec(trim($column->defaultValue, 'B\''));
465	130	} elseif (preg_match("/^'(.*?)'::/", $column->defaultValue, $matches)) {
466	79	$column->defaultValue = $matches[1];
467	18	} elseif (preg_match('/^(?:\()?(.*?)(?(1)\))(?:::.+)?$/', $column->defaultValue, $matches)) {
468	79	if ($matches[1] === 'NULL') {
469	74	$column->defaultValue = null;
470	79	} else {
471	18	$column->defaultValue = $column->phpTypecast($matches[1]);
472	24	}
473	18	} else {
474	24	$column->defaultValue = $column->phpTypecast($column->defaultValue);
475	5	}
476		}
477		}
478	5
479		return true;
480	5	}
481	22
482		/**
483	79	* Loads the column information into a [[ColumnSchema]] object.
484	130	* @param array $info column information
485		* @return ColumnSchema the column schema object
486	130	*/
487		protected function loadColumnSchema($info)
488		{
489		$column = $this->createColumnSchema();
490		$column->allowNull = $info['is_nullable'];
491		$column->autoIncrement = $info['is_autoinc'];
492		$column->comment = $info['column_comment'];
493		$column->dbType = $info['data_type'];
494	130	$column->defaultValue = $info['column_default'];
495		$column->enumValues = ($info['enum_values'] !== null) ? explode(',', str_replace(["''"], ["'"], $info['enum_values'])) : null;
		0 ignored issues – show Documentation Bug introduced 2015-11-20 21:52 UTC by Report Bug Copy Issue Report It seems like `$info['enum_values'] !==...'enum_values'])) : null` can be `null`. However, the property `$enumValues` is declared as `array`. Maybe change the type of the property to `array\|null` or add a type check? Our type inference engine has found an assignment of a scalar value (like a string, an integer or null) to a property which is an array. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property. To type hint that a parameter can be either an array or null, you can set a type hint of array and a default value of null. The PHP interpreter will then accept both an array or null for that parameter. function aContainsB(array $needle = null, array $haystack) { if (!$needle) { return false; } return array_intersect($haystack, $needle) == $haystack; } The function can be called with either null or an array for the parameter `$needle` but will only accept an array as `$haystack`. Loading history...
496	130	$column->unsigned = false; // has no meaning in PG
497	130	$column->isPrimaryKey = $info['is_pkey'];
498	130	$column->name = $info['column_name'];
499	130	$column->precision = $info['numeric_precision'];
500	130	$column->scale = $info['numeric_scale'];
501	130	$column->size = $info['size'] === null ? null : (int) $info['size'];
502	130	if (isset($this->typeMap[$column->dbType])) {
503	130	$column->type = $this->typeMap[$column->dbType];
504	130	} else {
505	130	$column->type = self::TYPE_STRING;
506	130	}
507	130	$column->phpType = $this->getColumnPhpType($column);
508	130
509	130	return $column;
510	130	}
511	130
512		/**
513		* @inheritdoc
514	130	*/
515		public function insert($table, $columns)
516	130	{
517		$params = [];
518		$sql = $this->db->getQueryBuilder()->insert($table, $columns, $params);
519		$returnColumns = $this->getTableSchema($table)->primaryKey;
520		if (!empty($returnColumns)) {
521		$returning = [];
522	27	foreach ((array) $returnColumns as $name) {
523		$returning[] = $this->quoteColumnName($name);
524	27	}
525	27	$sql .= ' RETURNING ' . implode(', ', $returning);
526	27	}
527	27
528	19	$command = $this->db->createCommand($sql, $params);
529	19	$command->prepare(false);
530	19	$result = $command->queryOne();
531	19
532	19	return !$command->pdoStatement->rowCount() ? false : $result;
533	19	}
534		}
535

yiisoft / yii2

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