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jasonmccrearyjasonmccreary
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Spike on model generators
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9 files changed

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9 files changed

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‎src/Generators/Generator.php‎

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<?php
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namespace Blueprint\Generators;
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use Blueprint\Lexers\ModelLexer;
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class Generator
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{
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public static function generate(array $registry)
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{
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$generator = new MigrationGenerator();
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$generator->output($registry);
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$generator = new ModelGenerator();
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$generator->output($registry);
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}
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}

‎src/Generators/MigrationGenerator.php‎

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<?php
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namespace Blueprint\Generators;
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use Blueprint\Model;
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use Illuminate\Support\Str;
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class MigrationGenerator
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{
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public function output(array $tree)
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{
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// TODO: what if changing an existing model
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$stub = file_get_contents('stubs/migration.stub');
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/** @var \Blueprint\Model $model */
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foreach ($tree['models'] as $model) {
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file_put_contents(
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$this->getPath($model),
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$this->populateStub($stub, $model)
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);
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}
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}
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protected function populateStub(string $stub, Model $model)
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{
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$stub = str_replace('DummyClass', $this->getClassName($model), $stub);
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$stub = str_replace('DummyTable', $model->tableName(), $stub);
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$stub = str_replace('// definition...', $this->buildDefinition($model), $stub);
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return $stub;
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}
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protected function buildDefinition(Model $model)
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{
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$definition = '';
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/** @var \Blueprint\Column $column */
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foreach ($model->columns() as $column) {
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$definition .= '$table->' . $column->dataType() . "('{$column->name()}'";
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if (!empty($column->attributes())) {
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// TODO: what about set and enum?
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$definition .= ', ' . implode(', ', $column->attributes());
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}
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$definition .= ')';
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foreach ($column->modifiers() as $modifier) {
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if (is_array($modifier)) {
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// TODO: properly handle quoted values
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$definition .= "->" . key($modifier) . "(" . current($modifier) . ")";
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} else {
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$definition .= '->' . $modifier . '()';
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}
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}
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$definition .= ';' . PHP_EOL;
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}
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if ($model->usesTimestamps()) {
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$definition .= '$table->timestamps();' . PHP_EOL;
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}
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return $definition;
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}
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protected function getClassName(Model $model)
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{
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return 'Create' . Str::studly($model->tableName()) . 'Table';
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}
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protected function getPath(Model $model)
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{
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return 'build/' . date('Y_m_d_His') . '_create_' . $model->tableName() . '_table.php';
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}
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}

‎src/Generators/ModelGenerator.php‎

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<?php
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namespace Blueprint\Generators;
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use Blueprint\Column;
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use Blueprint\Model;
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class ModelGenerator
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{
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public function output(array $tree)
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{
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// TODO: what if changing an existing model
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$stub = file_get_contents('stubs/model/class.stub');
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/** @var \Blueprint\Model $model */
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foreach ($tree['models'] as $model) {
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file_put_contents(
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$this->getPath($model),
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$this->populateStub($stub, $model)
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);
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}
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}
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protected function populateStub(string $stub, Model $model)
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{
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$stub = str_replace('DummyNamespace', 'App', $stub);
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$stub = str_replace('DummyClass', $model->name(), $stub);
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$stub = str_replace('// properties...', $this->buildProperties($model), $stub);
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return $stub;
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}
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private function buildProperties(Model $model)
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{
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$properties = '';
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$property = $this->fillableColumns($model->columns());
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if (!empty($property)) {
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$properties .= str_replace('[]', $this->pretty_print_array($property, false), $this->propertyStub('fillable'));
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}
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$property = $this->castableColumns($model->columns());
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if (!empty($property)) {
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$properties .= str_replace('[]', $this->pretty_print_array($property), $this->propertyStub('casts'));
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}
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$property = $this->dateColumns($model->columns());
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if (!empty($property)) {
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$properties .= str_replace('[]', $this->pretty_print_array($property, false), $this->propertyStub('dates'));
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}
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return $properties;
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}
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protected function getPath(Model $model)
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{
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return 'build/' . $model->name() . '.php';
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}
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private function fillableColumns(array $columns)
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{
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return array_diff(array_keys($columns), [
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'id',
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'password',
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'deleted_at',
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'created_at',
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'updated_at'
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]);
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}
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private function castableColumns(array $columns)
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{
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return array_filter(array_map(
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function (Column $column) {
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return $this->castForColumn($column);
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}, $columns));
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}
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private function dateColumns(array $columns)
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{
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return array_map(
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function (Column $column) {
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return $column->name();
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},
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array_filter($columns, function (Column $column) {
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return stripos($column->dataType(), 'datetime') !== false
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|| stripos($column->dataType(), 'timestamp') !== false;
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}));
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}
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private function castForColumn(Column $column)
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{
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if (stripos($column->dataType(), 'integer') || $column->dataType() === 'id') {
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return 'integer';
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}
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if (in_array($column->dataType(), ['boolean', 'double', 'float'])) {
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return strtolower($column->dataType());
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}
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if (in_array($column->dataType(), ['decimal', 'unsignedDecimal'])) {
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if ($column->attributes()) {
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return 'decimal:' . $column->attributes()[1];
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}
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return 'decimal';
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}
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return null;
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}
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private function pretty_print_array(array $data, $assoc = true)
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{
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$output = var_export($data, true);
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$output = preg_replace(['/^array\s\(/', "/\)$/"], ['[', ']'], $output);
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if (!$assoc) {
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$output = preg_replace('/^(\s+)[^=]+=>\s+/m', '$1', $output);
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}
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return $output;
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}
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private function propertyStub(string $stub)
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{
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static $stubs = [];
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if (empty($stubs[$stub])) {
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$stubs[$stub] = file_get_contents('stubs/model/'. $stub .'.stub');
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}
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return $stubs[$stub];
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}
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}

‎stubs/factory.stub‎

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<?php
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/** @var \Illuminate\Database\Eloquent\Factory $factory */
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use App\Model;
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use Faker\Generator as Faker;
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$factory->define(Model::class, function (Faker $faker) {
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return [
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//
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];
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});

‎stubs/migration.stub‎

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<?php
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use Illuminate\Database\Migrations\Migration;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Support\Facades\Schema;
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class DummyClass extends Migration
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{
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/**
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* Run the migrations.
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*
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* @return void
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*/
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public function up()
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{
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Schema::create('DummyTable', function (Blueprint $table) {
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// definition...
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});
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}
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/**
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* Reverse the migrations.
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*
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* @return void
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*/
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public function down()
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{
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Schema::dropIfExists('DummyTable');
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}
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}

‎stubs/model/casts.stub‎

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/**
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* The attributes that should be cast to native types.
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*
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* @var array
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*/
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protected $casts = [];

‎stubs/model/class.stub‎

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<?php
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namespace DummyNamespace;
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use Illuminate\Database\Eloquent\Model;
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class DummyClass extends Model
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{
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// properties...
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}

‎stubs/model/dates.stub‎

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/**
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* The attributes that should be mutated to dates.
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*
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* @var array
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*/
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protected $dates = [];

‎stubs/model/fillable.stub‎

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/**
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* The attributes that are mass assignable.
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*
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* @var array
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*/
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protected $fillable = [];

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