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Now Oracle supports table renaming (both sequence and triggers

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are kept on sync with the new table name)
This commit is contained in:
stronk7 2006-09-30 23:48:34 +00:00
parent f086dd7da1
commit 20c559dd8d
2 changed files with 52 additions and 5 deletions
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4
lib/xmldb/classes/generators/XMLDBGenerator.class.php
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@ -95,12 +95,12 @@ class XMLDBgenerator {
var $rename_table_sql = 'ALTER TABLE OLDNAME RENAME TO NEWNAME'; //SQL sentence to rename one table, both
//OLDNAME and NEWNAME are dinamically replaced
var $rename_table_extra_code = false; //Does the generatos need to add code after table rename
var $rename_table_extra_code = false; //Does the generator need to add code after table rename
var $drop_table_sql = 'DROP TABLE TABLENAME'; //SQL sentence to drop one table
//TABLENAME is dinamically replaced
var $drop_table_extra_code = false; //Does the generatos need to add code after table drop
var $drop_table_extra_code = false; //Does the generator need to add code after table drop
var $alter_column_sql = 'ALTER TABLE TABLENAME ALTER COLUMN COLUMNSPECS'; //The SQL template to alter columns

53
lib/xmldb/classes/generators/oci8po/oci8po.class.php
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@ -49,14 +49,16 @@ class XMLDBoci8po extends XMLDBgenerator {
var $sequence_extra_code = true; //Does the generator need to add extra code to generate the sequence fields
var $sequence_name = ''; //Particular name for inline sequences in this generator
var $drop_table_extra_code = true; //Does the generatos need to add code after table drop
var $drop_table_extra_code = true; //Does the generator need to add code after table drop
var $rename_table_extra_code = true; //Does the generator need to add code after table rename
var $enum_inline_code = false; //Does the generator need to add inline code in the column definition
var $alter_column_sql = 'ALTER TABLE TABLENAME MODIFY (COLUMNSPECS)'; //The SQL template to alter columns
/**
* Creates one new XMLDBpostgres7
* Creates one new XMLDBoci8po
*/
function XMLDBoci8po() {
parent::XMLDBgenerator();
@ -129,6 +131,8 @@ class XMLDBoci8po extends XMLDBgenerator {
*/
function getCreateSequenceSQL ($xmldb_table, $xmldb_field) {
$results = array();
$sequence_name = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'seq');
$sequence = "CREATE SEQUENCE " . $sequence_name;
@ -136,7 +140,20 @@ class XMLDBoci8po extends XMLDBgenerator {
$sequence.= "\n INCREMENT BY 1";
$sequence.= "\n NOMAXVALUE";
$results[] = $sequence;
$results = array_merge($results, $this->getCreateTriggerSQL ($xmldb_table, $xmldb_field));
return $results;
}
/**
* Returns the code needed to create one trigger for the xmldb_table and xmldb_field passed
*/
function getCreateTriggerSQL ($xmldb_table, $xmldb_field) {
$trigger_name = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'trg');
$sequence_name = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'seq');
$trigger = "CREATE TRIGGER " . $trigger_name;
$trigger.= "\n BEFORE INSERT";
@ -147,7 +164,8 @@ class XMLDBoci8po extends XMLDBgenerator {
$trigger.= "\n SELECT " . $sequence_name . '.nextval INTO :new.' . $this->getEncQuoted($xmldb_field->getName()) . " FROM dual;";
$trigger.= "\n END IF;";
$trigger.= "\nEND;";
return array($sequence, $trigger);
return array($trigger);
}
/**
@ -191,6 +209,35 @@ class XMLDBoci8po extends XMLDBgenerator {
return $this->getDropSequenceSQL($xmldb_table, $xmldb_field, false);
}
/**
* Returns the code (array of statements) needed to execute extra statements on table rename
*/
function getRenameTableExtraSQL ($xmldb_table, $newname) {
$results = array();
$xmldb_field = new XMLDBField('id'); // Fields having sequences should be exclusively, id.
$oldseqname = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'seq');
$newseqname = $this->getNameForObject($newname, $xmldb_field->getName(), 'seq');
/// Rename de sequence
$results[] = 'RENAME ' . $oldseqname . ' TO ' . $newseqname;
$oldtriggername = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'trg');
$newtriggername = $this->getNameForObject($newname, $xmldb_field->getName(), 'trg');
/// Drop old trigger
$results[] = "DROP TRIGGER " . $oldtriggername;
$new_xmldb_table = new XMLDBTable($newname); /// Temp table for trigger code generation
/// Create new trigger
$results = array_merge($results, $this->getCreateTriggerSQL($new_xmldb_table, $xmldb_field));
return $results;
}
/**
* Given one XMLDBTable and one XMLDBField, return the SQL statements needded to alter the field in the table
* Oracle has some severe limits: