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PDO plugin: Reflections

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* com.noccy.pdo: Implemented reflection for PDO databases,
  tables and columns. Reflectors for MySQL and Sqlite.
* com.noccy.pdo: Added pdo:inspect command.
* com.noccy.docker: Added basic stack management and commands.
* com.noccy.docker: Moved commands to dedicated namespace.
* Environment: readConfig and writeConfig helper added, with
  a flag to use the global config dir ~/.config/spark.
This commit is contained in:
Chris
2021-12-23 23:22:25 +01:00
parent 3f63cad176
commit 538383c33d
28 changed files with 819 additions and 12 deletions
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45
plugins/com.noccy.pdo/Reflection/Reflector/MysqlColumnReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\ColumnReflectionInterface;
class MysqlColumnReflection implements ColumnReflectionInterface
{
private array $meta;
public function __construct(PdoResource $db, array $meta)
{
$this->meta = $meta;
}
public function isPrimaryKey(): bool
{
return str_contains($this->meta['Key']??null, "PRI");
}
public function isNullable(): bool
{
return ($this->meta['Null']??null) == "YES";
}
public function getName(): string
{
return $this->meta['Field'];
}
public function getType(): string
{
return $this->meta['Type'];
}
public function getDefaultValue(): mixed
{
return $this->meta['Default'] ?? null;
}
}

42
plugins/com.noccy.pdo/Reflection/Reflector/MysqlDatabaseReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\DatabaseReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class MysqlDatabaseReflection implements DatabaseReflectionInterface
{
private PDO $pdo;
private array $tables = [];
public function __construct(PdoResource $db)
{
$pdo = $db->getPDO();
$tableQuery = $pdo->prepare('show full tables');
$tableQuery->execute();
$tables = $tableQuery->fetchAll(PDO::FETCH_ASSOC);
foreach ($tables as $table) {
$name = reset($table);
$this->tables[$name] = new MysqlTableReflection($db, $name);
}
}
public function getAllTables(): array
{
return $this->tables;
}
public function getTable(string $name): ?TableReflectionInterface
{
return $this->tables[$name] ?? null;
}
}

30
plugins/com.noccy.pdo/Reflection/Reflector/MysqlReflector.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\DatabaseReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class MysqlReflector implements ReflectorInterface
{
private PdoResource $db;
public function __construct(PdoResource $db)
{
$this->db = $db;
}
public function createDatabaseReflection(): DatabaseReflectionInterface
{
return new MysqlDatabaseReflection($this->db);
}
public function createTableReflection(string $table): TableReflectionInterface
{
return new MysqlTableReflection($this->db, $table);
}
}

56
plugins/com.noccy.pdo/Reflection/Reflector/MysqlTableReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\ColumnReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class MysqlTableReflection implements TableReflectionInterface
{
private PDO $pdo;
private string $table;
private array $columns = [];
public function __construct(PdoResource $db, string $table)
{
$pdo = $db->getPDO();
$columnQuery = $pdo->prepare('show fields from '.$table);
$columnQuery->execute();
$columns = $columnQuery->fetchAll(PDO::FETCH_ASSOC);
foreach ($columns as $column) {
$name = $column['Field'];
$this->columns[$name] = new MysqlColumnReflection($db, $column);
}
/*
SELECT table_schema, table_name, column_name, ordinal_position, data_type,
numeric_precision, column_type, column_default, is_nullable, column_comment
FROM information_schema.columns
WHERE (table_schema='schema_name' and table_name = 'table_name')
order by ordinal_position;
OR
show fields from 'table_name'
*/
}
public function getAllColumns(): array
{
return $this->columns;
}
public function getColumn(string $name): ?ColumnReflectionInterface
{
return $this->columns[$name] ?? null;
}
}

16
plugins/com.noccy.pdo/Reflection/Reflector/ReflectorInterface.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\DatabaseReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
interface ReflectorInterface
{
public function createDatabaseReflection(): DatabaseReflectionInterface;
public function createTableReflection(string $table): TableReflectionInterface;
}

45
plugins/com.noccy.pdo/Reflection/Reflector/SqliteColumnReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\ColumnReflectionInterface;
class SqliteColumnReflection implements ColumnReflectionInterface
{
private array $meta;
public function __construct(PdoResource $db, array $meta)
{
$this->meta = $meta;
}
public function isPrimaryKey(): bool
{
return (bool)$this->meta['pk'] ?? false;
}
public function isNullable(): bool
{
return !($this->meta['notnull'] ?? 0);
}
public function getName(): string
{
return $this->meta['name'];
}
public function getType(): string
{
return $this->meta['type'];
}
public function getDefaultValue(): mixed
{
return $this->meta['dflt_value'] ?? null;
}
}

41
plugins/com.noccy.pdo/Reflection/Reflector/SqliteDatabaseReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\DatabaseReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class SqliteDatabaseReflection implements DatabaseReflectionInterface
{
private PDO $pdo;
private array $tables = [];
public function __construct(PdoResource $db, SqliteReflector $reflector)
{
$pdo = $db->getPDO();
//$tableQuery = $pdo->prepare("SELECT name FROM sqlite_schema WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%' ORDER BY 1;");
$tableQuery = $pdo->prepare("SELECT * FROM sqlite_schema ORDER BY 1;");
$tableQuery->execute();
$tables = $tableQuery->fetchAll(PDO::FETCH_ASSOC);
foreach ($tables as $tinfo) {
$tname = $tinfo['name'];
$this->tables[$tname] = $reflector->createTableReflection($tname);
}
}
public function getAllTables(): array
{
return $this->tables;
}
public function getTable(string $name): ?TableReflectionInterface
{
return $this->tables[$name] ?? null;
}
}

30
plugins/com.noccy.pdo/Reflection/Reflector/SqliteReflector.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\DatabaseReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class SqliteReflector implements ReflectorInterface
{
private PdoResource $db;
public function __construct(PdoResource $db)
{
$this->db = $db;
}
public function createDatabaseReflection(): DatabaseReflectionInterface
{
return new SqliteDatabaseReflection($this->db, $this);
}
public function createTableReflection(string $table): TableReflectionInterface
{
return new SqliteTableReflection($this->db, $table);
}
}

46
plugins/com.noccy.pdo/Reflection/Reflector/SqliteTableReflection.php Normal file
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<?php
namespace SparkPlug\Com\Noccy\Pdo\Reflection\Reflector;
use PDO;
use SparkPlug\Com\Noccy\Pdo\PdoResource;
use SparkPlug\Com\Noccy\Pdo\Reflection\ColumnReflectionInterface;
use SparkPlug\Com\Noccy\Pdo\Reflection\TableReflectionInterface;
class SqliteTableReflection implements TableReflectionInterface
{
private PDO $pdo;
private array $columns = [];
public function __construct(PdoResource $db, string $table)
{
$pdo = $db->getPDO();
//$columnsQuery = $pdo->prepare("SELECT name FROM sqlite_schema WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%' ORDER BY 1;");
$columnsQuery = $pdo->prepare("pragma table_info({$table})");
$columnsQuery->execute();
$columns = $columnsQuery->fetchAll(PDO::FETCH_ASSOC);
if (count($columns) == 0) {
throw new \RuntimeException(sprintf("No such table %s in database", $table));
}
foreach ($columns as $column) {
$name = $column['name'];
$this->columns[$name] = new SqliteColumnReflection($db, $column);
}
}
public function getAllColumns(): array
{
return $this->columns;
}
public function getColumn(string $name): ?ColumnReflectionInterface
{
return $this->columns[$name] ?? null;
}
}