Schema::findColumns() - Code Metrics - Inspection of "IpValidator - added examples to class PHPDoc" - yiisoft/yii2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — ip-validator-message ( 93ed68...63eb47 )

by Dmitry

created 2016-02-09 07:45 UTC

Schema::findColumns() D

↳ Parent: Schema

Complexity

Conditions	15
Paths	12

Size

Total Lines	95
Code Lines	36

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	38
CRAP Score	15

Importance

Changes	1
Bugs	1	Features	0

Metric	Value
c	1
b	1
f	0
dl	0
loc	95
ccs	38
cts	38
cp	1
rs	4.9121
cc	15
eloc	36
nc	12
nop	1
crap	15

How to fix Long Method Complexity

<?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).
 *
 * @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_STRING,
        'char' => self::TYPE_STRING,
        '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;
        $command = $this->db->createCommand($sql, [':schemaName' => $schema]);
        $rows = $command->queryAll();
        $names = [];
        foreach ($rows as $row) {
            $names[] = $row['table_name'];
        }

        return $names;
    }

    /**
     * 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 $constraint) {
            if ($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) {
            $uniqueIndexes[$row['indexname']][] = $row['columnname'];
        }

        return $uniqueIndexes;
    }

    /**
     * Collects the metadata of table columns.
     * @param TableSchema $table the table metadata
     * @return boolean whether the table exists in the database
     */
    protected function findColumns($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) {
            $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('/^(.*?)::/', $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;

    }

    /**
     * @inheritdoc
     */
    public function createColumnSchemaBuilder($type, $length = null)
    {
        return new ColumnSchemaBuilder($type, $length);
    }
}


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		* @author Gevik Babakhani <[email protected]>
19		* @since 2.0
20		*/
21		class Schema extends \yii\db\Schema
22		{
23		/**
24		* @var string the default schema used for the current session.
25		*/
26		public $defaultSchema = 'public';
27		/**
28		* @var array mapping from physical column types (keys) to abstract
29		* column types (values)
30		* @see http://www.postgresql.org/docs/current/static/datatype.html#DATATYPE-TABLE
31		*/
32		public $typeMap = [
33		'bit' => self::TYPE_INTEGER,
34		'bit varying' => self::TYPE_INTEGER,
35		'varbit' => self::TYPE_INTEGER,
36
37		'bool' => self::TYPE_BOOLEAN,
38		'boolean' => self::TYPE_BOOLEAN,
39
40		'box' => self::TYPE_STRING,
41		'circle' => self::TYPE_STRING,
42		'point' => self::TYPE_STRING,
43		'line' => self::TYPE_STRING,
44		'lseg' => self::TYPE_STRING,
45		'polygon' => self::TYPE_STRING,
46		'path' => self::TYPE_STRING,
47
48		'character' => self::TYPE_STRING,
49		'char' => self::TYPE_STRING,
50		'character varying' => self::TYPE_STRING,
51		'varchar' => self::TYPE_STRING,
52		'text' => self::TYPE_TEXT,
53
54		'bytea' => self::TYPE_BINARY,
55
56		'cidr' => self::TYPE_STRING,
57		'inet' => self::TYPE_STRING,
58		'macaddr' => self::TYPE_STRING,
59
60		'real' => self::TYPE_FLOAT,
61		'float4' => self::TYPE_FLOAT,
62		'double precision' => self::TYPE_DOUBLE,
63		'float8' => self::TYPE_DOUBLE,
64		'decimal' => self::TYPE_DECIMAL,
65		'numeric' => self::TYPE_DECIMAL,
66
67		'money' => self::TYPE_MONEY,
68
69		'smallint' => self::TYPE_SMALLINT,
70		'int2' => self::TYPE_SMALLINT,
71		'int4' => self::TYPE_INTEGER,
72		'int' => self::TYPE_INTEGER,
73		'integer' => self::TYPE_INTEGER,
74		'bigint' => self::TYPE_BIGINT,
75		'int8' => self::TYPE_BIGINT,
76		'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!
77
78		'smallserial' => self::TYPE_SMALLINT,
79		'serial2' => self::TYPE_SMALLINT,
80		'serial4' => self::TYPE_INTEGER,
81		'serial' => self::TYPE_INTEGER,
82		'bigserial' => self::TYPE_BIGINT,
83		'serial8' => self::TYPE_BIGINT,
84		'pg_lsn' => self::TYPE_BIGINT,
85
86		'date' => self::TYPE_DATE,
87		'interval' => self::TYPE_STRING,
88		'time without time zone' => self::TYPE_TIME,
89		'time' => self::TYPE_TIME,
90		'time with time zone' => self::TYPE_TIME,
91		'timetz' => self::TYPE_TIME,
92		'timestamp without time zone' => self::TYPE_TIMESTAMP,
93		'timestamp' => self::TYPE_TIMESTAMP,
94		'timestamp with time zone' => self::TYPE_TIMESTAMP,
95		'timestamptz' => self::TYPE_TIMESTAMP,
96		'abstime' => self::TYPE_TIMESTAMP,
97
98		'tsquery' => self::TYPE_STRING,
99		'tsvector' => self::TYPE_STRING,
100		'txid_snapshot' => self::TYPE_STRING,
101
102		'unknown' => self::TYPE_STRING,
103
104		'uuid' => self::TYPE_STRING,
105		'json' => self::TYPE_STRING,
106		'jsonb' => self::TYPE_STRING,
107		'xml' => self::TYPE_STRING
108		];
109
110
111		/**
112		* Creates a query builder for the PostgreSQL database.
113		* @return QueryBuilder query builder instance
114		*/
115	105	public function createQueryBuilder()
116		{
117	105	return new QueryBuilder($this->db);
118		}
119
120		/**
121		* Resolves the table name and schema name (if any).
122		* @param TableSchema $table the table metadata object
123		* @param string $name the table name
124		*/
125	97	protected function resolveTableNames($table, $name)
126		{
127	97	$parts = explode('.', str_replace('"', '', $name));
128
129	97	if (isset($parts[1])) {
130		$table->schemaName = $parts[0];
131		$table->name = $parts[1];
132		} else {
133	97	$table->schemaName = $this->defaultSchema;
134	97	$table->name = $name;
135		}
136
137	97	$table->fullName = $table->schemaName !== $this->defaultSchema ? $table->schemaName . '.' . $table->name : $table->name;
138	97	}
139
140		/**
141		* Quotes a table name for use in a query.
142		* A simple table name has no schema prefix.
143		* @param string $name table name
144		* @return string the properly quoted table name
145		*/
146	138	public function quoteSimpleTableName($name)
147		{
148	138	return strpos($name, '"') !== false ? $name : '"' . $name . '"';
149		}
150
151		/**
152		* Loads the metadata for the specified table.
153		* @param string $name table name
154		* @return TableSchema\|null driver dependent table metadata. Null if the table does not exist.
155		*/
156	97	public function loadTableSchema($name)
157		{
158	97	$table = new TableSchema();
159	97	$this->resolveTableNames($table, $name);
160	97	if ($this->findColumns($table)) {
161	94	$this->findConstraints($table);
162
163	94	return $table;
164		} else {
165	7	return null;
166		}
167		}
168
169		/**
170		* Returns all schema names in the database, including the default one but not system schemas.
171		* This method should be overridden by child classes in order to support this feature
172		* because the default implementation simply throws an exception.
173		* @return array all schema names in the database, except system schemas
174		* @since 2.0.4
175		*/
176	1	protected function findSchemaNames()
177		{
178		$sql = <<<SQL
179		SELECT ns.nspname AS schema_name
180		FROM pg_namespace ns
181		WHERE ns.nspname != 'information_schema' AND ns.nspname NOT LIKE 'pg_%'
182		ORDER BY ns.nspname
183	1	SQL;
184	1	return $this->db->createCommand($sql)->queryColumn();
185		}
186
187		/**
188		* Returns all table names in the database.
189		* @param string $schema the schema of the tables. Defaults to empty string, meaning the current or default schema.
190		* @return array all table names in the database. The names have NO schema name prefix.
191		*/
192	3	protected function findTableNames($schema = '')
193		{
194	3	if ($schema === '') {
195	3	$schema = $this->defaultSchema;
196	3	}
197		$sql = <<<SQL
198		SELECT c.relname AS table_name
199		FROM pg_class c
200		INNER JOIN pg_namespace ns ON ns.oid = c.relnamespace
201		WHERE ns.nspname = :schemaName AND c.relkind IN ('r','v','m','f')
202		ORDER BY c.relname
203	3	SQL;
204	3	$command = $this->db->createCommand($sql, [':schemaName' => $schema]);
205	3	$rows = $command->queryAll();
206	3	$names = [];
207	3	foreach ($rows as $row) {
208	3	$names[] = $row['table_name'];
209	3	}
210
211	3	return $names;
212		}
213
214		/**
215		* Collects the foreign key column details for the given table.
216		* @param TableSchema $table the table metadata
217		*/
218	94	protected function findConstraints($table)
219		{
220
221	94	$tableName = $this->quoteValue($table->name);
222	94	$tableSchema = $this->quoteValue($table->schemaName);
223
224		//We need to extract the constraints de hard way since:
225		//http://www.postgresql.org/message-id/[email protected]
226
227		$sql = <<<SQL
228		select
229		ct.conname as constraint_name,
230		a.attname as column_name,
231		fc.relname as foreign_table_name,
232		fns.nspname as foreign_table_schema,
233		fa.attname as foreign_column_name
234		from
235		(SELECT ct.conname, ct.conrelid, ct.confrelid, ct.conkey, ct.contype, ct.confkey, generate_subscripts(ct.conkey, 1) AS s
236		FROM pg_constraint ct
237		) AS ct
238		inner join pg_class c on c.oid=ct.conrelid
239		inner join pg_namespace ns on c.relnamespace=ns.oid
240		inner join pg_attribute a on a.attrelid=ct.conrelid and a.attnum = ct.conkey[ct.s]
241		left join pg_class fc on fc.oid=ct.confrelid
242		left join pg_namespace fns on fc.relnamespace=fns.oid
243		left join pg_attribute fa on fa.attrelid=ct.confrelid and fa.attnum = ct.confkey[ct.s]
244		where
245		ct.contype='f'
246	94	and c.relname={$tableName}
247	94	and ns.nspname={$tableSchema}
248		order by
249	94	fns.nspname, fc.relname, a.attnum
250	94	SQL;
251
252	94	$constraints = [];
253	94	foreach ($this->db->createCommand($sql)->queryAll() as $constraint) {
254	37	if ($constraint['foreign_table_schema'] !== $this->defaultSchema) {
255		$foreignTable = $constraint['foreign_table_schema'] . '.' . $constraint['foreign_table_name'];
256		} else {
257	37	$foreignTable = $constraint['foreign_table_name'];
258		}
259	37	$name = $constraint['constraint_name'];
260	37	if (!isset($constraints[$name])) {
261	37	$constraints[$name] = [
262	37	'tableName' => $foreignTable,
263	37	'columns' => [],
264		];
265	37	}
266	37	$constraints[$name]['columns'][$constraint['column_name']] = $constraint['foreign_column_name'];
267	94	}
268	94	foreach ($constraints as $constraint) {
269	37	$table->foreignKeys[] = array_merge([$constraint['tableName']], $constraint['columns']);
270	94	}
271	94	}
272
273		/**
274		* Gets information about given table unique indexes.
275		* @param TableSchema $table the table metadata
276		* @return array with index and column names
277		*/
278		protected function getUniqueIndexInformation($table)
279		{
280		$sql = <<<SQL
281		SELECT
282		i.relname as indexname,
283		pg_get_indexdef(idx.indexrelid, k + 1, TRUE) AS columnname
284		FROM (
285		SELECT *, generate_subscripts(indkey, 1) AS k
286		FROM pg_index
287		) idx
288		INNER JOIN pg_class i ON i.oid = idx.indexrelid
289		INNER JOIN pg_class c ON c.oid = idx.indrelid
290		INNER JOIN pg_namespace ns ON c.relnamespace = ns.oid
291		WHERE idx.indisprimary = FALSE AND idx.indisunique = TRUE
292		AND c.relname = :tableName AND ns.nspname = :schemaName
293		ORDER BY i.relname, k
294		SQL;
295
296		return $this->db->createCommand($sql, [
297		':schemaName' => $table->schemaName,
298		':tableName' => $table->name,
299		])->queryAll();
300		}
301
302		/**
303		* Returns all unique indexes for the given table.
304		* Each array element is of the following structure:
305		*
306		* ```php
307		* [
308		* 'IndexName1' => ['col1' [, ...]],
309		* 'IndexName2' => ['col2' [, ...]],
310		* ]
311		* ```
312		*
313		* @param TableSchema $table the table metadata
314		* @return array all unique indexes for the given table.
315		*/
316		public function findUniqueIndexes($table)
317		{
318		$uniqueIndexes = [];
319
320		$rows = $this->getUniqueIndexInformation($table);
321		foreach ($rows as $row) {
322		$uniqueIndexes[$row['indexname']][] = $row['columnname'];
323		}
324
325		return $uniqueIndexes;
326		}
327
328		/**
329		* Collects the metadata of table columns.
330		* @param TableSchema $table the table metadata
331		* @return boolean whether the table exists in the database
332		*/
333	97	protected function findColumns($table)
334		{
335	97	$tableName = $this->db->quoteValue($table->name);
336	97	$schemaName = $this->db->quoteValue($table->schemaName);
337		$sql = <<<SQL
338		SELECT
339		d.nspname AS table_schema,
340		c.relname AS table_name,
341		a.attname AS column_name,
342		t.typname AS data_type,
343		a.attlen AS character_maximum_length,
344		pg_catalog.col_description(c.oid, a.attnum) AS column_comment,
345		a.atttypmod AS modifier,
346		a.attnotnull = false AS is_nullable,
347		CAST(pg_get_expr(ad.adbin, ad.adrelid) AS varchar) AS column_default,
348		coalesce(pg_get_expr(ad.adbin, ad.adrelid) ~ 'nextval',false) AS is_autoinc,
349		array_to_string((select array_agg(enumlabel) from pg_enum where enumtypid=a.atttypid)::varchar[],',') as enum_values,
350		CASE atttypid
351		WHEN 21 /int2/ THEN 16
352		WHEN 23 /int4/ THEN 32
353		WHEN 20 /int8/ THEN 64
354		WHEN 1700 /numeric/ THEN
355		CASE WHEN atttypmod = -1
356		THEN null
357		ELSE ((atttypmod - 4) >> 16) & 65535
358		END
359		WHEN 700 /float4/ THEN 24 /FLT_MANT_DIG/
360		WHEN 701 /float8/ THEN 53 /DBL_MANT_DIG/
361		ELSE null
362		END AS numeric_precision,
363		CASE
364		WHEN atttypid IN (21, 23, 20) THEN 0
365		WHEN atttypid IN (1700) THEN
366		CASE
367		WHEN atttypmod = -1 THEN null
368		ELSE (atttypmod - 4) & 65535
369		END
370		ELSE null
371		END AS numeric_scale,
372		CAST(
373		information_schema._pg_char_max_length(information_schema._pg_truetypid(a, t), information_schema._pg_truetypmod(a, t))
374		AS numeric
375		) AS size,
376		a.attnum = any (ct.conkey) as is_pkey
377		FROM
378		pg_class c
379		LEFT JOIN pg_attribute a ON a.attrelid = c.oid
380		LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
381		LEFT JOIN pg_type t ON a.atttypid = t.oid
382		LEFT JOIN pg_namespace d ON d.oid = c.relnamespace
383		LEFT join pg_constraint ct on ct.conrelid=c.oid and ct.contype='p'
384		WHERE
385		a.attnum > 0 and t.typname != ''
386	97	and c.relname = {$tableName}
387	97	and d.nspname = {$schemaName}
388		ORDER BY
389	97	a.attnum;
390	97	SQL;
391
392	97	$columns = $this->db->createCommand($sql)->queryAll();
393	97	if (empty($columns)) {
394	7	return false;
395		}
396	94	foreach ($columns as $column) {
397	94	$column = $this->loadColumnSchema($column);
398	94	$table->columns[$column->name] = $column;
399	94	if ($column->isPrimaryKey) {
400	87	$table->primaryKey[] = $column->name;
401	87	if ($table->sequenceName === null && preg_match("/nextval\\('\"?\\w+\"?\.?\"?\\w+\"?'(::regclass)?\\)/", $column->defaultValue) === 1) {
402	80	$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...
403	80	}
404	87	$column->defaultValue = null;
405	94	} elseif ($column->defaultValue) {
406	58	if ($column->type === 'timestamp' && $column->defaultValue === 'now()') {
407	9	$column->defaultValue = new Expression($column->defaultValue);
408	58	} elseif ($column->type === 'boolean') {
409	55	$column->defaultValue = ($column->defaultValue === 'true');
410	58	} elseif (stripos($column->dbType, 'bit') === 0 \|\| stripos($column->dbType, 'varbit') === 0) {
411	9	$column->defaultValue = bindec(trim($column->defaultValue, 'B\''));
412	13	} elseif (preg_match("/^'(.*?)'::/", $column->defaultValue, $matches)) {
413	9	$column->defaultValue = $matches[1];
414	13	} elseif (preg_match('/^(.*?)::/', $column->defaultValue, $matches)) {
415	12	if ($matches[1] === 'NULL') {
416	5	$column->defaultValue = null;
417	5	} else {
418	9	$column->defaultValue = $column->phpTypecast($matches[1]);
419		}
420	12	} else {
421	10	$column->defaultValue = $column->phpTypecast($column->defaultValue);
422		}
423	58	}
424	94	}
425
426	94	return true;
427		}
428
429		/**
430		* Loads the column information into a [[ColumnSchema]] object.
431		* @param array $info column information
432		* @return ColumnSchema the column schema object
433		*/
434	94	protected function loadColumnSchema($info)
435		{
436	94	$column = $this->createColumnSchema();
437	94	$column->allowNull = $info['is_nullable'];
438	94	$column->autoIncrement = $info['is_autoinc'];
439	94	$column->comment = $info['column_comment'];
440	94	$column->dbType = $info['data_type'];
441	94	$column->defaultValue = $info['column_default'];
442	94	$column->enumValues = ($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...
443	94	$column->unsigned = false; // has no meaning in PG
444	94	$column->isPrimaryKey = $info['is_pkey'];
445	94	$column->name = $info['column_name'];
446	94	$column->precision = $info['numeric_precision'];
447	94	$column->scale = $info['numeric_scale'];
448	94	$column->size = $info['size'] === null ? null : (int) $info['size'];
449	94	if (isset($this->typeMap[$column->dbType])) {
450	94	$column->type = $this->typeMap[$column->dbType];
451	94	} else {
452	9	$column->type = self::TYPE_STRING;
453		}
454	94	$column->phpType = $this->getColumnPhpType($column);
455
456	94	return $column;
457		}
458
459		/**
460		* @inheritdoc
461		*/
462	14	public function insert($table, $columns)
463		{
464	14	$params = [];
465	14	$sql = $this->db->getQueryBuilder()->insert($table, $columns, $params);
466	14	$returnColumns = $this->getTableSchema($table)->primaryKey;
467	14	if (!empty($returnColumns)) {
468	13	$returning = [];
469	13	foreach ((array) $returnColumns as $name) {
470	13	$returning[] = $this->quoteColumnName($name);
471	13	}
472	13	$sql .= ' RETURNING ' . implode(', ', $returning);
473	13	}
474
475	14	$command = $this->db->createCommand($sql, $params);
476	14	$command->prepare(false);
477	14	$result = $command->queryOne();
478
479	14	return !$command->pdoStatement->rowCount() ? false : $result;
		0 ignored issues – show Bug Compatibility introduced 2016-02-04 14:20 UTC by Report Bug Copy Issue Report The expression `!$command->pdoStatement-...nt() ? false : $result;` of type `array\|boolean` adds the type `boolean` to the return on line 479 which is incompatible with the return type of the parent method `yii\db\Schema::insert` of type `false\|array`. Loading history...
480		}
481
482		/**
483		* @inheritdoc
484		*/
485	2	public function createColumnSchemaBuilder($type, $length = null)
486		{
487	2	return new ColumnSchemaBuilder($type, $length);
488		}
489		}
490

yiisoft / yii2

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