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phpmyadmin_ynh/sources/libraries/schema/Dia_Relation_Schema.class.php
Julien Malik 68f7b78dc1 add phpmyadmin sources 4.1.4
2014-01-14 12:28:06 +01:00

847 lines
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
require_once 'Export_Relation_Schema.class.php';
/**
* This Class inherits the XMLwriter class and
* helps in developing structure of DIA Schema Export
*
* @package PhpMyAdmin
* @access public
* @see http://php.net/manual/en/book.xmlwriter.php
*/
class PMA_DIA extends XMLWriter
{
public $title;
public $author;
public $font;
public $fontSize;
/**
* The "PMA_DIA" constructor
*
* Upon instantiation This starts writing the Dia XML document
*
* @see XMLWriter::openMemory(),XMLWriter::setIndent(),XMLWriter::startDocument()
*/
function __construct()
{
$this->openMemory();
/*
* Set indenting using three spaces,
* so output is formatted
*/
$this->setIndent(true);
$this->setIndentString(' ');
/*
* Create the XML document
*/
$this->startDocument('1.0', 'UTF-8');
}
/**
* Starts Dia Document
*
* dia document starts by first initializing dia:diagram tag
* then dia:diagramdata contains all the attributes that needed
* to define the document, then finally a Layer starts which
* holds all the objects.
*
* @param string $paper the size of the paper/document
* @param float $topMargin top margin of the paper/document in cm
* @param float $bottomMargin bottom margin of the paper/document in cm
* @param float $leftMargin left margin of the paper/document in cm
* @param float $rightMargin right margin of the paper/document in cm
* @param string $portrait document will be portrait or landscape
*
* @return void
*
* @access public
* @see XMLWriter::startElement(),XMLWriter::writeAttribute(),
* XMLWriter::writeRaw()
*/
function startDiaDoc($paper, $topMargin, $bottomMargin, $leftMargin,
$rightMargin, $portrait
) {
if ($portrait == 'P') {
$isPortrait='true';
} else {
$isPortrait='false';
}
$this->startElement('dia:diagram');
$this->writeAttribute('xmlns:dia', 'http://www.lysator.liu.se/~alla/dia/');
$this->startElement('dia:diagramdata');
$this->writeRaw(
'<dia:attribute name="background">
<dia:color val="#ffffff"/>
</dia:attribute>
<dia:attribute name="pagebreak">
<dia:color val="#000099"/>
</dia:attribute>
<dia:attribute name="paper">
<dia:composite type="paper">
<dia:attribute name="name">
<dia:string>#' . $paper . '#</dia:string>
</dia:attribute>
<dia:attribute name="tmargin">
<dia:real val="' . $topMargin . '"/>
</dia:attribute>
<dia:attribute name="bmargin">
<dia:real val="' . $bottomMargin . '"/>
</dia:attribute>
<dia:attribute name="lmargin">
<dia:real val="' . $leftMargin . '"/>
</dia:attribute>
<dia:attribute name="rmargin">
<dia:real val="' . $rightMargin . '"/>
</dia:attribute>
<dia:attribute name="is_portrait">
<dia:boolean val="' . $isPortrait . '"/>
</dia:attribute>
<dia:attribute name="scaling">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="fitto">
<dia:boolean val="false"/>
</dia:attribute>
</dia:composite>
</dia:attribute>
<dia:attribute name="grid">
<dia:composite type="grid">
<dia:attribute name="width_x">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="width_y">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="visible_x">
<dia:int val="1"/>
</dia:attribute>
<dia:attribute name="visible_y">
<dia:int val="1"/>
</dia:attribute>
<dia:composite type="color"/>
</dia:composite>
</dia:attribute>
<dia:attribute name="color">
<dia:color val="#d8e5e5"/>
</dia:attribute>
<dia:attribute name="guides">
<dia:composite type="guides">
<dia:attribute name="hguides"/>
<dia:attribute name="vguides"/>
</dia:composite>
</dia:attribute>'
);
$this->endElement();
$this->startElement('dia:layer');
$this->writeAttribute('name', 'Background');
$this->writeAttribute('visible', 'true');
$this->writeAttribute('active', 'true');
}
/**
* Ends Dia Document
*
* @return void
* @access public
* @see XMLWriter::endElement(),XMLWriter::endDocument()
*/
function endDiaDoc()
{
$this->endElement();
$this->endDocument();
}
/**
* Output Dia Document for download
*
* @param string $fileName name of the dia document
*
* @return void
* @access public
* @see XMLWriter::flush()
*/
function showOutput($fileName)
{
if (ob_get_clean()) {
ob_end_clean();
}
$output = $this->flush();
PMA_Response::getInstance()->disable();
PMA_downloadHeader(
$fileName . '.dia', 'application/x-dia-diagram', strlen($output)
);
print $output;
}
}
/**
* Table preferences/statistics
*
* This class preserves the table co-ordinates,fields
* and helps in drawing/generating the Tables in dia XML document.
*
* @package PhpMyAdmin
* @name Table_Stats_Dia
* @see PMA_DIA
*/
class Table_Stats_Dia
{
/**
* Defines properties
*/
public $tableName;
public $fields = array();
public $x, $y;
public $primary = array();
public $tableId;
public $tableColor;
/**
* The "Table_Stats_Dia" constructor
*
* @param string $tableName The table name
* @param integer $pageNumber The current page number (from the
* $cfg['Servers'][$i]['table_coords'] table)
* @param boolean $showKeys Whether to display ONLY keys or not
*
* @global object $dia The current dia document
* @global array $cfgRelation The relations settings
* @global string $db The current db name
*
* @see PMA_DIA
*/
function __construct($tableName, $pageNumber, $showKeys = false)
{
global $dia, $cfgRelation, $db;
$this->tableName = $tableName;
$sql = 'DESCRIBE ' . PMA_Util::backquote($tableName);
$result = $GLOBALS['dbi']->tryQuery(
$sql, null, PMA_DatabaseInterface::QUERY_STORE
);
if (! $result || ! $GLOBALS['dbi']->numRows($result)) {
$dia->dieSchema(
$pageNumber, "DIA",
sprintf(__('The %s table doesn\'t exist!'), $tableName)
);
}
/*
* load fields
* check to see if it will load all fields or only the foreign keys
*/
if ($showKeys) {
$indexes = PMA_Index::getFromTable($this->tableName, $db);
$all_columns = array();
foreach ($indexes as $index) {
$all_columns = array_merge(
$all_columns,
array_flip(array_keys($index->getColumns()))
);
}
$this->fields = array_keys($all_columns);
} else {
while ($row = $GLOBALS['dbi']->fetchRow($result)) {
$this->fields[] = $row[0];
}
}
$sql = 'SELECT x, y FROM '
. PMA_Util::backquote($GLOBALS['cfgRelation']['db']) . '.'
. PMA_Util::backquote($cfgRelation['table_coords'])
. ' WHERE db_name = \'' . PMA_Util::sqlAddSlashes($db) . '\''
. ' AND table_name = \''
. PMA_Util::sqlAddSlashes($tableName) . '\''
. ' AND pdf_page_number = ' . $pageNumber;
$result = PMA_queryAsControlUser(
$sql, false, PMA_DatabaseInterface::QUERY_STORE
);
if (! $result || ! $GLOBALS['dbi']->numRows($result)) {
$dia->dieSchema(
$pageNumber,
"DIA",
sprintf(
__('Please configure the coordinates for table %s'),
$tableName
)
);
}
list($this->x, $this->y) = $GLOBALS['dbi']->fetchRow($result);
$this->x = (double) $this->x;
$this->y = (double) $this->y;
/*
* displayfield
*/
$this->displayfield = PMA_getDisplayField($db, $tableName);
/*
* index
*/
$result = $GLOBALS['dbi']->query(
'SHOW INDEX FROM ' . PMA_Util::backquote($tableName) . ';',
null,
PMA_DatabaseInterface::QUERY_STORE
);
if ($GLOBALS['dbi']->numRows($result) > 0) {
while ($row = $GLOBALS['dbi']->fetchAssoc($result)) {
if ($row['Key_name'] == 'PRIMARY') {
$this->primary[] = $row['Column_name'];
}
}
}
/**
* Every object in Dia document needs an ID to identify
* so, we used a static variable to keep the things unique
*/
PMA_Dia_Relation_Schema::$objectId += 1;
$this->tableId = PMA_Dia_Relation_Schema::$objectId;
}
/**
* Do draw the table
*
* Tables are generated using object type Database - Table
* primary fields are underlined in tables. Dia object
* is used to generate the XML of Dia Document. Database Table
* Object and their attributes are involved in the combination
* of displaing Database - Table on Dia Document.
*
* @param boolean $changeColor Whether to show color for tables text or not
* if changeColor is true then an array of $listOfColors will be used to choose
* the random colors for tables text we can change/add more colors to this array
*
* @return void
*
* @global object $dia The current Dia document
*
* @access public
* @see PMA_DIA
*/
public function tableDraw($changeColor)
{
global $dia;
if ($changeColor) {
$listOfColors = array(
'FF0000',
'000099',
'00FF00'
);
shuffle($listOfColors);
$this->tableColor = '#' . $listOfColors[0] . '';
} else {
$this->tableColor = '#000000';
}
$factor = 0.1;
$dia->startElement('dia:object');
$dia->writeAttribute('type', 'Database - Table');
$dia->writeAttribute('version', '0');
$dia->writeAttribute('id', '' . $this->tableId . '');
$dia->writeRaw(
'<dia:attribute name="obj_pos">
<dia:point val="'
. ($this->x * $factor) . ',' . ($this->y * $factor) . '"/>
</dia:attribute>
<dia:attribute name="obj_bb">
<dia:rectangle val="'
.($this->x * $factor) . ',' . ($this->y * $factor) . ';9.97,9.2"/>
</dia:attribute>
<dia:attribute name="meta">
<dia:composite type="dict"/>
</dia:attribute>
<dia:attribute name="elem_corner">
<dia:point val="'
. ($this->x * $factor) . ',' . ($this->y * $factor) . '"/>
</dia:attribute>
<dia:attribute name="elem_width">
<dia:real val="5.9199999999999999"/>
</dia:attribute>
<dia:attribute name="elem_height">
<dia:real val="3.5"/>
</dia:attribute>
<dia:attribute name="text_colour">
<dia:color val="' . $this->tableColor . '"/>
</dia:attribute>
<dia:attribute name="line_colour">
<dia:color val="#000000"/>
</dia:attribute>
<dia:attribute name="fill_colour">
<dia:color val="#ffffff"/>
</dia:attribute>
<dia:attribute name="line_width">
<dia:real val="0.10000000000000001"/>
</dia:attribute>
<dia:attribute name="name">
<dia:string>#' . $this->tableName . '#</dia:string>
</dia:attribute>
<dia:attribute name="comment">
<dia:string>##</dia:string>
</dia:attribute>
<dia:attribute name="visible_comment">
<dia:boolean val="false"/>
</dia:attribute>
<dia:attribute name="tagging_comment">
<dia:boolean val="false"/>
</dia:attribute>
<dia:attribute name="underline_primary_key">
<dia:boolean val="true"/>
</dia:attribute>
<dia:attribute name="bold_primary_keys">
<dia:boolean val="true"/>
</dia:attribute>
<dia:attribute name="normal_font">
<dia:font family="monospace" style="0" name="Courier"/>
</dia:attribute>
<dia:attribute name="name_font">
<dia:font family="sans" style="80" name="Helvetica-Bold"/>
</dia:attribute>
<dia:attribute name="comment_font">
<dia:font family="sans" style="0" name="Helvetica"/>
</dia:attribute>
<dia:attribute name="normal_font_height">
<dia:real val="0.80000000000000004"/>
</dia:attribute>
<dia:attribute name="name_font_height">
<dia:real val="0.69999999999999996"/>
</dia:attribute>
<dia:attribute name="comment_font_height">
<dia:real val="0.69999999999999996"/>
</dia:attribute>'
);
$dia->startElement('dia:attribute');
$dia->writeAttribute('name', 'attributes');
foreach ($this->fields as $field) {
$dia->writeRaw(
'<dia:composite type="table_attribute">
<dia:attribute name="name">
<dia:string>#' . $field . '#</dia:string>
</dia:attribute>
<dia:attribute name="type">
<dia:string>##</dia:string>
</dia:attribute>
<dia:attribute name="comment">
<dia:string>##</dia:string>
</dia:attribute>'
);
unset($pm);
$pm = 'false';
if (in_array($field, $this->primary)) {
$pm = 'true';
}
if ($field == $this->displayfield) {
$pm = 'false';
}
$dia->writeRaw(
'<dia:attribute name="primary_key">
<dia:boolean val="' . $pm . '"/>
</dia:attribute>
<dia:attribute name="nullable">
<dia:boolean val="false"/>
</dia:attribute>
<dia:attribute name="unique">
<dia:boolean val="' . $pm . '"/>
</dia:attribute>
</dia:composite>'
);
}
$dia->endElement();
$dia->endElement();
}
}
/**
* Relation preferences/statistics
*
* This class fetches the table master and foreign fields positions
* and helps in generating the Table references and then connects
* master table's master field to foreign table's foreign key
* in dia XML document.
*
* @package PhpMyAdmin
* @name Relation_Stats_Dia
* @see PMA_DIA
*/
class Relation_Stats_Dia
{
/**
* Defines properties
*/
public $srcConnPointsRight;
public $srcConnPointsLeft;
public $destConnPointsRight;
public $destConnPointsLeft;
public $masterTableId;
public $foreignTableId;
public $masterTablePos;
public $foreignTablePos;
public $referenceColor;
/**
* The "Relation_Stats_Dia" constructor
*
* @param string $master_table The master table name
* @param string $master_field The relation field in the master table
* @param string $foreign_table The foreign table name
* @param string $foreign_field The relation field in the foreign table
*
* @see Relation_Stats_Dia::_getXy
*/
function __construct($master_table, $master_field, $foreign_table,
$foreign_field
) {
$src_pos = $this->_getXy($master_table, $master_field);
$dest_pos = $this->_getXy($foreign_table, $foreign_field);
$this->srcConnPointsLeft = $src_pos[0];
$this->srcConnPointsRight = $src_pos[1];
$this->destConnPointsLeft = $dest_pos[0];
$this->destConnPointsRight = $dest_pos[1];
$this->masterTablePos = $src_pos[2];
$this->foreignTablePos = $dest_pos[2];
$this->masterTableId = $master_table->tableId;
$this->foreignTableId = $foreign_table->tableId;
}
/**
* Each Table object have connection points
* which is used to connect to other objects in Dia
* we detect the position of key in fields and
* then determines its left and right connection
* points.
*
* @param string $table The current table name
* @param string $column The relation column name
*
* @return array Table right,left connection points and key position
*
* @access private
*/
private function _getXy($table, $column)
{
$pos = array_search($column, $table->fields);
// left, right, position
$value = 12;
if ($pos != 0) {
return array($pos + $value + $pos, $pos + $value + $pos + 1, $pos);
}
return array($pos + $value , $pos + $value + 1, $pos);
}
/**
* Draws relation references
*
* connects master table's master field to foreign table's
* forein field using Dia object type Database - Reference
* Dia object is used to generate the XML of Dia Document.
* Database reference Object and their attributes are involved
* in the combination of displaing Database - reference on Dia Document.
*
* @param boolean $changeColor Whether to use one color per relation or not
* if changeColor is true then an array of $listOfColors will be used to choose
* the random colors for references lines. we can change/add more colors to this
*
* @return boolean|void
*
* @global object $dia The current Dia document
*
* @access public
* @see PMA_PDF
*/
public function relationDraw($changeColor)
{
global $dia;
PMA_Dia_Relation_Schema::$objectId += 1;
/*
* if source connection points and destination connection
* points are same then return it false and don't draw that
* relation
*/
if ( $this->srcConnPointsRight == $this->destConnPointsRight) {
if ( $this->srcConnPointsLeft == $this->destConnPointsLeft) {
return false;
}
}
if ($changeColor) {
$listOfColors = array(
'FF0000',
'000099',
'00FF00'
);
shuffle($listOfColors);
$this->referenceColor = '#' . $listOfColors[0] . '';
} else {
$this->referenceColor = '#000000';
}
$dia->writeRaw(
'<dia:object type="Database - Reference" version="0" id="'
. PMA_Dia_Relation_Schema::$objectId . '">
<dia:attribute name="obj_pos">
<dia:point val="3.27,18.9198"/>
</dia:attribute>
<dia:attribute name="obj_bb">
<dia:rectangle val="2.27,8.7175;17.7679,18.9198"/>
</dia:attribute>
<dia:attribute name="meta">
<dia:composite type="dict"/>
</dia:attribute>
<dia:attribute name="orth_points">
<dia:point val="3.27,18.9198"/>
<dia:point val="2.27,18.9198"/>
<dia:point val="2.27,14.1286"/>
<dia:point val="17.7679,14.1286"/>
<dia:point val="17.7679,9.3375"/>
<dia:point val="16.7679,9.3375"/>
</dia:attribute>
<dia:attribute name="orth_orient">
<dia:enum val="0"/>
<dia:enum val="1"/>
<dia:enum val="0"/>
<dia:enum val="1"/>
<dia:enum val="0"/>
</dia:attribute>
<dia:attribute name="orth_autoroute">
<dia:boolean val="true"/>
</dia:attribute>
<dia:attribute name="text_colour">
<dia:color val="#000000"/>
</dia:attribute>
<dia:attribute name="line_colour">
<dia:color val="' . $this->referenceColor . '"/>
</dia:attribute>
<dia:attribute name="line_width">
<dia:real val="0.10000000000000001"/>
</dia:attribute>
<dia:attribute name="line_style">
<dia:enum val="0"/>
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="corner_radius">
<dia:real val="0"/>
</dia:attribute>
<dia:attribute name="end_arrow">
<dia:enum val="22"/>
</dia:attribute>
<dia:attribute name="end_arrow_length">
<dia:real val="0.5"/>
</dia:attribute>
<dia:attribute name="end_arrow_width">
<dia:real val="0.5"/>
</dia:attribute>
<dia:attribute name="start_point_desc">
<dia:string>#1#</dia:string>
</dia:attribute>
<dia:attribute name="end_point_desc">
<dia:string>#n#</dia:string>
</dia:attribute>
<dia:attribute name="normal_font">
<dia:font family="monospace" style="0" name="Courier"/>
</dia:attribute>
<dia:attribute name="normal_font_height">
<dia:real val="0.59999999999999998"/>
</dia:attribute>
<dia:connections>
<dia:connection handle="0" to="'
. $this->masterTableId . '" connection="'
. $this->srcConnPointsRight . '"/>
<dia:connection handle="1" to="'
. $this->foreignTableId . '" connection="'
. $this->destConnPointsRight . '"/>
</dia:connections>
</dia:object>'
);
}
}
/**
* Dia Relation Schema Class
*
* Purpose of this class is to generate the Dia XML Document
* which is used for representing the database diagrams in Dia IDE
* This class uses Database Table and Reference Objects of Dia and with
* the combination of these objects actually helps in preparing Dia XML.
*
* Dia XML is generated by using XMLWriter php extension and this class
* inherits Export_Relation_Schema class has common functionality added
* to this class
*
* @package PhpMyAdmin
* @name Dia_Relation_Schema
*/
class PMA_Dia_Relation_Schema extends PMA_Export_Relation_Schema
{
/**
* Defines properties
*/
private $_tables = array();
private $_relations = array();
private $_topMargin = 2.8222000598907471;
private $_bottomMargin = 2.8222000598907471;
private $_leftMargin = 2.8222000598907471;
private $_rightMargin = 2.8222000598907471;
public static $objectId = 0;
/**
* The "PMA_Dia_Relation_Schema" constructor
*
* Upon instantiation This outputs the Dia XML document
* that user can download
*
* @see PMA_DIA,Table_Stats_Dia,Relation_Stats_Dia
*/
function __construct()
{
global $dia,$db;
$this->setPageNumber($_POST['pdf_page_number']);
$this->setShowGrid(isset($_POST['show_grid']));
$this->setShowColor($_POST['show_color']);
$this->setShowKeys(isset($_POST['show_keys']));
$this->setOrientation(isset($_POST['orientation']));
$this->setPaper($_POST['paper']);
$this->setExportType($_POST['export_type']);
$dia = new PMA_DIA();
$dia->startDiaDoc(
$this->paper, $this->_topMargin, $this->_bottomMargin,
$this->_leftMargin, $this->_rightMargin, $this->orientation
);
$alltables = $this->getAllTables($db, $this->pageNumber);
foreach ($alltables as $table) {
if (! isset($this->tables[$table])) {
$this->_tables[$table] = new Table_Stats_Dia(
$table, $this->pageNumber, $this->showKeys
);
}
}
$seen_a_relation = false;
foreach ($alltables as $one_table) {
$exist_rel = PMA_getForeigners($db, $one_table, '', 'both');
if ($exist_rel) {
$seen_a_relation = true;
foreach ($exist_rel as $master_field => $rel) {
/* put the foreign table on the schema only if selected
* by the user
* (do not use array_search() because we would have to
* to do a === false and this is not PHP3 compatible)
*/
if (in_array($rel['foreign_table'], $alltables)) {
$this->_addRelation(
$one_table, $master_field, $rel['foreign_table'],
$rel['foreign_field'], $this->showKeys
);
}
}
}
}
$this->_drawTables($this->showColor);
if ($seen_a_relation) {
$this->_drawRelations($this->showColor);
}
$dia->endDiaDoc();
}
/**
* Output Dia Document for download
*
* @return void
* @access public
*/
function showOutput()
{
global $dia, $db;
$dia->showOutput($db . '-' . $this->pageNumber);
}
/**
* Defines relation objects
*
* @param string $masterTable The master table name
* @param string $masterField The relation field in the master table
* @param string $foreignTable The foreign table name
* @param string $foreignField The relation field in the foreign table
* @param bool $showKeys Whether to display ONLY keys or not
*
* @return void
*
* @access private
* @see Table_Stats_Dia::__construct(),Relation_Stats_Dia::__construct()
*/
private function _addRelation($masterTable, $masterField, $foreignTable,
$foreignField, $showKeys
) {
if (! isset($this->_tables[$masterTable])) {
$this->_tables[$masterTable] = new Table_Stats_Dia(
$masterTable, $this->pageNumber, $showKeys
);
}
if (! isset($this->_tables[$foreignTable])) {
$this->_tables[$foreignTable] = new Table_Stats_Dia(
$foreignTable, $this->pageNumber, $showKeys
);
}
$this->_relations[] = new Relation_Stats_Dia(
$this->_tables[$masterTable], $masterField,
$this->_tables[$foreignTable], $foreignField
);
}
/**
* Draws relation references
*
* connects master table's master field to
* foreign table's forein field using Dia object
* type Database - Reference
*
* @param boolean $changeColor Whether to use one color per relation or not
*
* @return void
*
* @access private
* @see Relation_Stats_Dia::relationDraw()
*/
private function _drawRelations($changeColor)
{
foreach ($this->_relations as $relation) {
$relation->relationDraw($changeColor);
}
}
/**
* Draws tables
*
* Tables are generated using Dia object type Database - Table
* primary fields are underlined and bold in tables
*
* @param boolean $changeColor Whether to show color for tables text or not
*
* @return void
*
* @access private
* @see Table_Stats_Dia::tableDraw()
*/
private function _drawTables($changeColor)
{
foreach ($this->_tables as $table) {
$table->tableDraw($changeColor);
}
}
}
?>
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