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Partial rework of the mysql generator. Working now.

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This commit is contained in:
stronk7
2006-08-16 17:43:55 +00:00
parent 1f0872e8ba
commit e54ae5264b
1 changed files with 28 additions and 114 deletions
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lib/xmldb/classes/generators/mysql/mysql.class.php
+28 -114
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@@ -24,35 +24,30 @@
// //
///////////////////////////////////////////////////////////////////////////
/// This class represent the base generator class where all the
/// needed functions to generate proper SQL are defined.
/// This class generate SQL code to be used against MySQL
/// It extends XMLDBgenerator so everything can be
/// overriden as needed to generate correct SQL.
/// If fact, this class generate SQL code to be used against MySQL
/// so the rest of classes will inherit, by default, the same logic.
/// Functions will be overriden as needed to generate correct SQL.
class XMLDBmysql extends XMLDBGenerator {
class XMLDBmysql {
/// Only set values that are different from the defaults present in XMLDBgenerator
var $quote_string = '`'; // String used to quote names
var $quote_all = false; // To decide if we want to quote all the names or only the reserved ones
var $integer_to_number = false; // To create all the integers as NUMBER(x) (also called DECIMAL, NUMERIC...)
var $float_to_number = false; // To create all the floats as NUMBER(x) (also called DECIMAL, NUMERIC...)
var $number_type = 'NUMERIC'; // Proper type for NUMBER(x) in this DB
var $default_for_char = ''; // To define the default to set for NOT NULLs CHARs without default (null=do nothing)
var $primary_keys = true; // Does the constructor build primary keys
var $unique_keys = false; // Does the constructor build unique keys
var $foreign_keys = false; // Does the constructor build foreign keys
var $primary_key_name = 'primary'; //To force primary key names to one string (null=no force)
var $primary_index = false;// Does the constructor need to build one index for primary keys
var $unique_index = true; // Does the constructor need to build one index for unique keys
var $foreign_index = true; // Does the constructor need to build one index for foreign keys
var $foreign_keys = false; // Does the generator build foreign keys
var $prefix; // Prefix to be used for all the DB objects
var $primary_index = false;// Does the generator need to build one index for primary keys
var $unique_index = false; // Does the generator need to build one index for unique keys
var $reserved_words; // List of reserved words (in order to quote them properly)
var $sequence_extra_code = false; //Does the generator need to add extra code to generate the sequence fields
var $sequence_name = 'auto_increment'; //Particular name for inline sequences in this generator
var $enum_extra_code = false; //Does the generator need to add extra code to generate code for the enums in the table
/**
* Creates one new XMLDBmysql
*/
@@ -72,7 +67,7 @@ class XMLDBmysql {
/**
* Given one XMLDB Type, lenght and decimals, returns the DB proper SQL type
*/
function getType ($xmldb_type, $xmldb_length=null, $xmldb_decimals=null) {
function getTypeSQL ($xmldb_type, $xmldb_length=null, $xmldb_decimals=null) {
switch ($xmldb_type) {
case XMLDB_TYPE_INTEGER: // From http://mysql.com/doc/refman/5.0/en/numeric-types.html!
@@ -88,7 +83,7 @@ class XMLDBmysql {
} else if ($xmldb_length > 2) {
$dbtype = 'SMALLINT';
} else {
$dbtype = 'TINTINT';
$dbtype = 'TINYINT';
}
$dbtype .= '(' . $xmldb_length . ')';
break;
@@ -150,104 +145,23 @@ class XMLDBmysql {
}
/**
* Given one correct XMLDBTable, returns the complete SQL lines to create it
* Given one XMLDB Field, return its enum SQL
*/
function getCreateTableSQL($xmldb_table) {
function getEnumSQL ($xmldb_field) {
return 'enum(' . implode(', ', $xmldb_field->getEnumValues()) . ')';
}
/// Table header
$table = 'CREATE TABLE ' . $this->getEncQuoted($this->prefix . $xmldb_table->getName()) . ' (';
/**
* Returns the code needed to add one comment to the table
*/
function getCommentSQL ($xmldb_table) {
if (!$xmldb_fields = $xmldb_table->getFields()) {
return false;
}
/// Add the fields, separated by commas
foreach ($xmldb_fields as $xmldb_field) {
$table .= "\n " . $this->getCreateFieldSQL($xmldb_field) . ',';
}
/// Table footer, trim the latest comma
$table = trim($table,',');
$table .= "\n)";
$comment = '';
if ($xmldb_table->getComment()) {
$table .= " COMMENT='" . $xmldb_table->getComment() . "';\n\n";
$comment .= " COMMENT='" . substr($xmldb_table->getComment(), 0, 250) . "'";
}
return $table;
}
/**
* Given one correct XMLDBField, returns the complete SQL line to create it
*/
function getCreateFieldSQL($xmldb_field) {
/// First of all, convert integers to numbers if defined
if ($this->integer_to_number) {
if ($xmldb_field->getType() == XMLDB_TYPE_INTEGER) {
$xmldb_field->setType(XMLDB_TYPE_NUMBER);
}
}
/// Same for floats
if ($this->float_to_number) {
if ($xmldb_field->getType() == XMLDB_TYPE_FLOAT) {
$xmldb_field->setType(XMLDB_TYPE_NUMBER);
}
}
/// The name
$field = $this->getEncQuoted($xmldb_field->getName());
/// The type and length (if the field isn't enum)
if (!$xmldb_field->getEnum()) {
$field .= ' ' . $this->getType($xmldb_field->getType(), $xmldb_field->getLength(), $xmldb_field->getDecimals());
} else {
/// If enum, do it with its values
$field .= ' enum(' . implode(', ', $xmldb_field->getEnumValues()) . ')';
}
/// The unsigned
if ($xmldb_field->getType() == XMLDB_TYPE_INTEGER ||
$xmldb_field->getType() == XMLDB_TYPE_NUMBER ||
$xmldb_field->getType() == XMLDB_TYPE_FLOAT) {
if ($xmldb_field->getUnsigned()) {
$field .= ' unsigned';
}
}
/// The not null
if ($xmldb_field->getNotNull()) {
$field .= ' NOT NULL';
}
/// The sequence
if ($xmldb_field->getSequence()) {
$field .= ' auto_increment';
}
/// The default
if ($xmldb_field->getDefault() != NULL) {
$field .= ' default ';
if ($xmldb_field->getType() == XMLDB_TYPE_CHAR ||
$xmldb_field->getType() == XMLDB_TYPE_TEXT) {
$field .= "'" . $xmldb_field->getDefault() . "'";
} else {
$field .= $xmldb_field->getDefault();
}
} else {
/// We force default '' for not null char columns without proper default
/// some day this should be out!
if ($xmldb_field->getType() == XMLDB_TYPE_CHAR &&
$xmldb_field->getNotNull()) {
$field .= ' default ' . "''";
}
}
return $field;
}
/**
* Given any string, enclose it by the proper quotes
*/
function getEncQuoted($string) {
/// Always lowercase
$string = strtolower($string);
/// if reserved or quote_all, quote it
if ($this->quote_all || in_array($string, $this->reserved_words)) {
$string = $this->quote_string . $string . $this->quote_string;
}
return $string;
return $comment . ";";
}
/**