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<?php |
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namespace Bdf\Prime\Schema\Visitor; |
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use Doctrine\DBAL\Schema\ForeignKeyConstraint; |
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use Doctrine\DBAL\Schema\Schema; |
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use Doctrine\DBAL\Schema\Table; |
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use Doctrine\DBAL\Schema\Visitor\AbstractVisitor; |
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/** |
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* Create a Graphviz output of a Schema. |
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* |
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* @package Bdf\Prime\Schema\Visitor |
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*/ |
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class Graphviz extends AbstractVisitor |
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{ |
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/** |
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* @var string |
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*/ |
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protected $output = ''; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptForeignKey(Table $localTable, ForeignKeyConstraint $fkConstraint) |
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{ |
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$this->output .= $this->createNodeRelation( |
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$fkConstraint->getLocalTableName().':col'.current($fkConstraint->getLocalColumns()).':se', |
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$fkConstraint->getForeignTableName().':col'.current($fkConstraint->getForeignColumns()).':se', |
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[ |
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'dir' => 'back', |
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'arrowtail' => 'dot', |
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'arrowhead' => 'normal', |
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] |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptSchema(Schema $schema) |
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{ |
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$this->output = 'digraph "' . sha1((string) mt_rand()) . '" {' . "\n"; |
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$this->output .= 'graph [fontname="helvetica", fontsize=12];' . "\n"; |
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$this->output .= 'node [fontname="helvetica", fontsize=12];' . "\n"; |
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$this->output .= 'edge [fontname="helvetica", fontsize=12];' . "\n"; |
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// $this->output .= 'splines = true;' . "\n"; |
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// $this->output .= 'overlap = false;' . "\n"; |
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// $this->output .= 'outputorder=edgesfirst;'."\n"; |
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// $this->output .= 'mindist = 0.6;' . "\n"; |
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// $this->output .= 'sep = .2;' . "\n"; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function acceptTable(Table $table) |
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{ |
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$this->output .= $this->createNode( |
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$table->getName(), |
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[ |
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'label' => $this->createTableLabel($table), |
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'shape' => 'plaintext', |
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] |
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); |
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} |
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/** |
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* @param \Doctrine\DBAL\Schema\Table $table |
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* |
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* @return string |
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*/ |
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protected function createTableLabel(Table $table) |
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{ |
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// The title |
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$label = '<tr><td border="0" colspan="2" align="center" bgcolor="#fcaf3e">' |
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. $table->getName() |
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. '</td></tr>'; |
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// The attributes block |
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foreach ($table->getColumns() as $column) { |
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$columnName = $column->getName(); |
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if ($table->hasPrimaryKey() && in_array($column->getName(), $table->getPrimaryKey()->getColumns())) { |
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$columnName = '<b>'.$columnName.'</b>'; |
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} |
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$label .= |
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'<tr>' |
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. '<td border="0" align="left">' |
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. $columnName |
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. '</td>' |
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. '<td border="0" align="left">' |
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. '<font point-size="10">'.lcfirst($column->getType()->getName()).'</font>' |
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. '</td>' |
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. '</tr>'; |
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} |
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return '<<table cellspacing="2" border="1" align="left" bgcolor="#eeeeec">'.$label.'</table>>'; |
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} |
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/** |
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* @param string $name |
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* @param array $options |
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* |
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* @return string |
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*/ |
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protected function createNode($name, $options) |
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{ |
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$node = ''; |
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foreach ($options as $key => $value) { |
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$node .= $key.'='.$value.' '; |
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} |
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return $name.' ['.$node."]\n"; |
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} |
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/** |
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* @param string $node1 |
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* @param string $node2 |
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* @param array $options |
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* |
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* @return string |
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*/ |
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protected function createNodeRelation($node1, $node2, $options) |
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{ |
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return $this->createNode($node1.' -> '.$node2, $options); |
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} |
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/** |
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* Get Graphviz Output |
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* |
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* @return string |
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*/ |
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public function getOutput() |
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{ |
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return $this->output."}"; |
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} |
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/** |
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* Writes dot language output to a file. This should usually be a *.dot file. |
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* |
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* You have to convert the output into a viewable format. For example use "neato" on linux systems |
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* and execute: |
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* |
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* neato -Tpng -o er.png er.dot |
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* |
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* @param string $filename |
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* |
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* @return void |
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*/ |
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public function write($filename) |
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{ |
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file_put_contents($filename, $this->getOutput()); |
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} |
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} |
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b2pweb /
bdf-prime
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