Initial SQLite development #1

Merged
danieljsummers merged 25 commits from develop into main 2024-06-08 23:58:45 +00:00
10 changed files with 219 additions and 7 deletions
Showing only changes of commit 98bfceb7c9 - Show all commits

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@ -24,6 +24,9 @@ class Configuration
/** @var array|null Options to use for connections (driver-specific) */
public static ?array $options = null;
/** @var Mode|null The mode in which the library is operating (filled after first connection if not configured) */
public static ?Mode $mode = null;
/**
* Retrieve a new connection to the database
*
@ -38,8 +41,15 @@ class Configuration
$db = new PDO(self::$pdoDSN, $_ENV['PDO_DOC_USERNAME'] ?? self::$username,
$_ENV['PDO_DOC_PASSWORD'] ?? self::$password, self::$options);
// TODO: determine driver, set mode for other queries
echo $db->getAttribute(PDO::ATTR_DRIVER_NAME);
if (is_null(self::$mode)) {
$driver = $db->getAttribute(PDO::ATTR_DRIVER_NAME);
self::$mode = match ($driver) {
'pgsql' => Mode::PgSQL,
'sqlite' => Mode::SQLite,
default => throw new DocumentException(
"Unsupported driver $driver: this library currently supports PostgreSQL and SQLite")
};
}
return $db;
}
}

15
src/Mode.php Normal file
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@ -0,0 +1,15 @@
<?php declare(strict_types=1);
namespace BitBadger\PDODocument;
/**
* The mode for queries generated by the library
*/
enum Mode
{
/** Storing documents in a PostgreSQL database */
case PgSQL;
/** Storing documents in a SQLite database */
case SQLite;
}

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@ -3,6 +3,8 @@
namespace BitBadger\PDODocument\Query;
use BitBadger\PDODocument\Configuration;
use BitBadger\PDODocument\DocumentException;
use BitBadger\PDODocument\Mode;
/**
* Queries to define tables and indexes
@ -13,11 +15,16 @@ class Definition
* SQL statement to create a document table
*
* @param string $name The name of the table (including schema, if applicable)
* @param string $dataType The data type used for the document column
* @return string The CREATE TABLE statement for the document table
* @throws DocumentException If the database mode has not been set
*/
public static function ensureTableFor(string $name, string $dataType): string
public static function ensureTable(string $name): string
{
$dataType = match (Configuration::$mode) {
Mode::PgSQL => 'JSONB',
Mode::SQLite => 'TEXT',
default => throw new DocumentException('Database mode not set; cannot make create table statement')
};
return "CREATE TABLE IF NOT EXISTS $name (data $dataType NOT NULL)";
}

59
src/Query/Patch.php Normal file
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@ -0,0 +1,59 @@
<?php declare(strict_types=1);
namespace BitBadger\PDODocument\Query;
use BitBadger\PDODocument\Configuration;
use BitBadger\PDODocument\DocumentException;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Mode;
use BitBadger\PDODocument\Query;
/**
* Queries to perform partial updates on documents
*/
class Patch
{
/**
* Create an UPDATE statement to patch documents
*
* @param string $tableName The name of the table in which documents should be patched
* @param string $whereClause The body of the WHERE clause to use in the UPDATE statement
* @return string The UPDATE statement to perform the patch
* @throws DocumentException If the database mode has not been set
*/
public static function update(string $tableName, string $whereClause): string
{
$setValue = match (Configuration::$mode) {
Mode::PgSQL => 'data || @data',
Mode::SQLite => 'json_patch(data, json(@data))',
default => throw new DocumentException('Database mode not set; cannot make patch statement')
};
return "UPDATE $tableName SET data = $setValue WHERE $whereClause";
}
/**
* Query to patch (partially update) a document by its ID
*
* @param string $tableName The name of the table in which a document should be patched
* @return string The query to patch a document by its ID
* @throws DocumentException If the database mode has not been set
*/
public static function byId(string $tableName): string
{
return self::update($tableName, Query::whereById());
}
/**
* Query to patch (partially update) a document via a comparison on a JSON field
*
* @param string $tableName The name of the table in which documents should be patched
* @param array|Field[] $field The field comparison to match
* @param string $conjunction How to handle multiple conditions (optional; defaults to `AND`)
* @return string The query to patch documents via field comparison
* @throws DocumentException If the database mode has not been set
*/
public static function byFields(string $tableName, array $field, string $conjunction = 'AND'): string
{
return self::update($tableName, Query::whereByFields($field, $conjunction));
}
}

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@ -2,7 +2,11 @@
namespace Test\Unit\Query;
use BitBadger\PDODocument\Configuration;
use BitBadger\PDODocument\DocumentException;
use BitBadger\PDODocument\Mode;
use BitBadger\PDODocument\Query\Definition;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
@ -10,10 +14,35 @@ use PHPUnit\Framework\TestCase;
*/
class DefinitionTest extends TestCase
{
public function testEnsureTableForSucceeds(): void
#[TestDox('Ensure table succeeds for PosgtreSQL')]
public function testEnsureTableSucceedsForPostgreSQL(): void
{
$this->assertEquals('CREATE TABLE IF NOT EXISTS documents (data JSON NOT NULL)',
Definition::ensureTableFor('documents', 'JSON'), 'CREATE TABLE statement not generated correctly');
try {
Configuration::$mode = Mode::PgSQL;
$this->assertEquals('CREATE TABLE IF NOT EXISTS documents (data JSONB NOT NULL)',
Definition::ensureTable('documents'), 'CREATE TABLE statement not generated correctly');
} finally {
Configuration::$mode = null;
}
}
#[TestDox('Ensure table succeeds for SQLite')]
public function testEnsureTableSucceedsForSQLite(): void
{
try {
Configuration::$mode = Mode::SQLite;
$this->assertEquals('CREATE TABLE IF NOT EXISTS dox (data TEXT NOT NULL)', Definition::ensureTable('dox'),
'CREATE TABLE statement not generated correctly');
} finally {
Configuration::$mode = null;
}
}
public function testEnsureTableFailsWhenModeNotSet(): void
{
$this->expectException(DocumentException::class);
Configuration::$mode = null;
Definition::ensureTable('boom');
}
public function testEnsureIndexOnSucceedsWithoutSchemaSingleAscendingField(): void

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@ -4,6 +4,7 @@ namespace Test\Unit\Query;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Query\Delete;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
@ -11,6 +12,7 @@ use PHPUnit\Framework\TestCase;
*/
class DeleteTest extends TestCase
{
#[TestDox('By ID succeeds')]
public function testByIdSucceeds(): void
{
$this->assertEquals("DELETE FROM over_there WHERE data->>'id' = @id", Delete::byId('over_there'),

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@ -4,6 +4,7 @@ namespace Test\Unit\Query;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Query\Exists;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
@ -17,6 +18,7 @@ class ExistsTest extends TestCase
'Existence query not generated correctly');
}
#[TestDox('By ID succeeds')]
public function testByIdSucceeds(): void
{
$this->assertEquals("SELECT EXISTS (SELECT 1 FROM dox WHERE data->>'id' = @id)", Exists::byId('dox'),

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@ -4,6 +4,7 @@ namespace Test\Unit\Query;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Query\Find;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
@ -11,6 +12,7 @@ use PHPUnit\Framework\TestCase;
*/
class FindTest extends TestCase
{
#[TestDox('By ID succeeds')]
public function testByIdSucceeds(): void
{
$this->assertEquals("SELECT data FROM here WHERE data->>'id' = @id", Find::byId('here'),

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@ -0,0 +1,83 @@
<?php declare(strict_types=1);
namespace Test\Unit\Query;
use BitBadger\PDODocument\Configuration;
use BitBadger\PDODocument\DocumentException;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Mode;
use BitBadger\PDODocument\Query\Patch;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
* Unit tests for the Patch class
*/
class PatchTest extends TestCase
{
#[TestDox('By ID succeeds for PostgreSQL')]
public function testByIdSucceedsForPostgreSQL(): void
{
try {
Configuration::$mode = Mode::PgSQL;
$this->assertEquals("UPDATE doc_table SET data = data || @data WHERE data->>'id' = @id",
Patch::byId('doc_table'), 'Patch UPDATE statement is not correct');
} finally {
Configuration::$mode = null;
}
}
#[TestDox('By ID succeeds for SQLite')]
public function testByIdSucceedsForSQLite(): void
{
try {
Configuration::$mode = Mode::SQLite;
$this->assertEquals("UPDATE my_table SET data = json_patch(data, json(@data)) WHERE data->>'id' = @id",
Patch::byId('my_table'), 'Patch UPDATE statement is not correct');
} finally {
Configuration::$mode = null;
}
}
#[TestDox('By ID fails when mode not set')]
public function testByIdFailsWhenModeNotSet(): void
{
$this->expectException(DocumentException::class);
Configuration::$mode = null;
Patch::byId('oof');
}
#[TestDox('By fields succeeds for PostgreSQL')]
public function testByFieldsSucceedsForPostgreSQL(): void
{
try {
Configuration::$mode = Mode::PgSQL;
$this->assertEquals("UPDATE that SET data = data || @data WHERE data->>'something' < @some",
Patch::byFields('that', [Field::LT('something', 17, '@some')]),
'Patch UPDATE statement is not correct');
} finally {
Configuration::$mode = null;
}
}
#[TestDox('By fields succeeds for SQLite')]
public function testByFieldsSucceedsForSQLite(): void
{
try {
Configuration::$mode = Mode::SQLite;
$this->assertEquals(
"UPDATE a_table SET data = json_patch(data, json(@data)) WHERE data->>'something' > @it",
Patch::byFields('a_table', [Field::GT('something', 17, '@it')]),
'Patch UPDATE statement is not correct');
} finally {
Configuration::$mode = null;
}
}
public function testByFieldsFailsWhenModeNotSet(): void
{
$this->expectException(DocumentException::class);
Configuration::$mode = null;
Patch::byFields('oops', []);
}
}

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@ -4,6 +4,7 @@ namespace Test\Unit;
use BitBadger\PDODocument\Field;
use BitBadger\PDODocument\Query;
use PHPUnit\Framework\Attributes\TestDox;
use PHPUnit\Framework\TestCase;
/**
@ -37,11 +38,13 @@ class QueryTest extends TestCase
'WHERE fragment not constructed correctly');
}
#[TestDox('Where by ID succeeds with default parameter')]
public function testWhereByIdSucceedsWithDefaultParameter(): void
{
$this->assertEquals("data->>'id' = @id", Query::whereById(), 'WHERE fragment not constructed correctly');
}
#[TestDox('Where by ID succeeds with specific parameter')]
public function testWhereByIdSucceedsWithSpecificParameter(): void
{
$this->assertEquals("data->>'id' = @di", Query::whereById('@di'), 'WHERE fragment not constructed correctly');