Schema::resolveTableNames() - Code Metrics - Inspection of "prepare for next release" - yiisoft/yii2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( be658f...d6bd62 )

by Carsten

created 2017-06-05 14:35 UTC

Schema::resolveTableNames() A

↳ Parent: Schema

Complexity

Conditions	3
Paths	4

Size

Total Lines	14
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	7
CRAP Score	3.0987

Importance

Changes

Metric	Value
dl	0
loc	14
ccs	7
cts	9
cp	0.7778
rs	9.4285
c	0
b	0
f	0
cc	3
eloc	9
nc	4
nop	2
crap	3.0987

<?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;
use yii\db\ViewFinderTrait;

/**
 * Schema is the class for retrieving metadata from a PostgreSQL database
 * (version 9.x and above).
 *
 * @author Gevik Babakhani <[email protected]>
 * @since 2.0
 */
class Schema extends \yii\db\Schema
{
    use ViewFinderTrait;

    /**
     * @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,
    ];


    /**
     * 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();
    }

    /**
     * @inheritdoc
     */
    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' OR c.relkind = 'm')
ORDER BY c.relname
SQL;
        return $this->db->createCommand($sql, [':schemaName' => $schema])->queryColumn();
    }

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

yiisoft / yii2

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