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- fix schema data so that it can now be used
- replace the current system of packaging schemas with phpBB with a new system that dynamically generates the schemas on the fly
- give the db tools package the power to create databases


git-svn-id: file:///svn/phpbb/trunk@8318 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
David M
2008-01-10 21:46:46 +00:00
parent b9b46a8b45
commit 35f59ceb9a
10 changed files with 216 additions and 9368 deletions
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231
phpBB/includes/db/db_tools.php
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@@ -621,38 +621,7 @@ class phpbb_db_tools
{
$column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'], $column_length);
}
else
{
if (isset($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule']))
{
switch ($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule'][0])
{
case 'div':
$column_length /= $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule'][1];
$column_length = ceil($column_length);
$column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'][0], $column_length);
break;
}
}
if (isset($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit']))
{
switch ($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][0])
{
case 'mult':
$column_length *= $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][1];
if ($column_length > $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][2])
{
$column_type = $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][3];
}
else
{
$column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'][0], $column_length);
}
break;
}
}
}
$orig_column_type .= ':';
}
else
@@ -689,6 +658,12 @@ class phpbb_db_tools
$sql .= ' COLLATE UNICODE';
}
$return_array['auto_increment'] = false;
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
$return_array['auto_increment'] = true;
}
break;
case 'mssql':
@@ -709,6 +684,8 @@ class phpbb_db_tools
}
}
$return_array['textimage'] = $column_type === '[text]';
$sql .= 'NOT NULL';
$sql_default .= 'NOT NULL';
@@ -750,6 +727,12 @@ class phpbb_db_tools
{
$sql .= ($column_data[1] === '') ? '' : 'NOT NULL';
}
$return_array['auto_increment'] = false;
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
$return_array['auto_increment'] = true;
}
break;
case 'postgres':
@@ -757,9 +740,11 @@ class phpbb_db_tools
$sql .= " {$column_type} ";
$return_array['auto_increment'] = false;
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
$default_val = "nextval('{$table_name}_seq')";
$return_array['auto_increment'] = true;
}
else if (!is_null($column_data[1]))
{
@@ -781,9 +766,11 @@ class phpbb_db_tools
break;
case 'sqlite':
$return_array['primary_key_set'] = false;
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
$sql .= ' INTEGER PRIMARY KEY';
$return_array['primary_key_set'] = true;
}
else
{
@@ -795,7 +782,7 @@ class phpbb_db_tools
break;
case 'db2':
$sql .= "\t{$column_name} {$column_type} NOT NULL";
$sql .= " {$column_type} NOT NULL";
if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
{
@@ -812,7 +799,6 @@ class phpbb_db_tools
$sql .= " DEFAULT '{$column_data[1]}'";
}
}
$sql .= ",\n";
break;
}
@@ -821,6 +807,185 @@ class phpbb_db_tools
return $return_array;
}
function sql_create_table($table_name, $table_data)
{
// holds the DDL for a column
$columns = array();
$table_sql = 'CREATE TABLE ' . $table_name . ' (' . "\n";
// Determine if we have created a PRIMARY KEY in the earliest
$primary_key_gen = false;
// Determine if the table must be created with TEXTIMAGE
$create_textimage = false;
// Determine if the table requires a sequence
$create_sequence = false;
foreach ($table_data['COLUMNS'] as $column_name => $column_data)
{
// here lies an array, filled with information compiled on the column's data
$prepared_column = $this->sql_prepare_column_data($table_name, $column_name, $column_data);
// here we add the definition of the new column to the list of columns
$columns[] = "\t {$column_name} " . $prepared_column['column_type_sql'];
// see if we have found a primary key set due to a column definition,
// if we have found it, we can stop looking
if (!$primary_key_gen)
{
$primary_key_gen = isset($prepared_column['primary_key_set']) && $prepared_column['primary_key_set'];
}
// create textimage DDL based off of the existance of certain column types
if (!$create_textimage)
{
$create_textimage = isset($prepared_column['textimage']) && $prepared_column['textimage'];
}
// create sequence DDL based off of the existance of auto incrementing columns
if (!$create_sequence && isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'])
{
$create_sequence = $column_name;
}
}
// this makes up all the columns in the create table statement
$table_sql .= implode(",\n", $columns);
switch ($this->sql_layer)
{
case 'firebird':
$table_sql .= "\n);";
$statements[] = $table_sql;
break;
case 'mssql':
$table_sql .= "\n) ON [PRIMARY]" . (($create_textimage) ? ' TEXTIMAGE_ON [PRIMARY]' : '');
$statements[] = $table_sql;
break;
}
// we have yet to create a primary key for this table,
// this means that we can add the one we really wanted instead
if (!$primary_key_gen)
{
// Write primary key
if (isset($table_data['PRIMARY_KEY']))
{
if (!is_array($table_data['PRIMARY_KEY']))
{
$table_data['PRIMARY_KEY'] = array($table_data['PRIMARY_KEY']);
}
switch ($this->sql_layer)
{
case 'mysql':
case 'postgres':
case 'db2':
case 'sqlite':
$table_sql .= ",\n\t PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';
break;
case 'firebird':
case 'mssql':
$primary_key_stmts = $this->sql_create_primary_key($table_name, $table_data['PRIMARY_KEY']);
foreach ($primary_key_stmts as $pk_stmt)
{
$statements[] = $pk_stmt;
}
break;
case 'oracle':
$table_sql .= ",\n\t CONSTRAINT pk_{$table_name} PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';
break;
}
}
}
// close the table
switch ($this->sql_layer)
{
case 'mysql':
// make sure the table is in UTF-8 mode
$table_sql .= "\n) CHARACTER SET `utf8` COLLATE `utf8_bin`;";
$statements[] = $table_sql;
break;
case 'postgres':
// do we need to add a sequence for auto incrementing columns?
if ($create_sequence)
{
$statements[] = "CREATE SEQUENCE {$table_name}_seq;";
}
$table_sql .= "\n);";
$statements[] = $table_sql;
break;
case 'db2':
case 'sqlite':
$table_sql .= "\n);";
$statements[] = $table_sql;
break;
case 'oracle':
$table_sql .= "\n);";
$statements[] = $table_sql;
// do we need to add a sequence and a tigger for auto incrementing columns?
if ($create_sequence)
{
// create the actual sequence
$statements[] = "CREATE SEQUENCE {$table_name}_seq";
// the trigger is the mechanism by which we increment the counter
$trigger = "CREATE OR REPLACE TRIGGER t_{$table_name}\n";
$trigger .= "BEFORE INSERT ON {$table_name}\n";
$trigger .= "FOR EACH ROW WHEN (\n";
$trigger .= "\tnew.{$create_sequence} IS NULL OR new.{$create_sequence} = 0\n";
$trigger .= ")\n";
$trigger .= "BEGIN\n";
$trigger .= "\tSELECT {$table_name}_seq.nextval\n";
$trigger .= "\tINTO :new.{$create_sequence}\n";
$trigger .= "\tFROM dual\n";
$trigger .= "END;";
$statements[] = $trigger;
}
break;
case 'firebird':
if ($create_sequence)
{
$statements[] = "CREATE SEQUENCE {$table_name}_seq;";
}
break;
}
// Write Keys
if (isset($table_data['KEYS']))
{
foreach ($table_data['KEYS'] as $key_name => $key_data)
{
if (!is_array($key_data[1]))
{
$key_data[1] = array($key_data[1]);
}
$key_stmts = ($key_data[0] == 'UNIQUE') ? $this->sql_create_unique_index($table_name, $key_name, $key_data[1]) : $this->sql_create_index($table_name, $key_name, $key_data[1]);
foreach ($key_stmts as $key_stmt)
{
$statements[] = $key_stmt;
}
}
}
return $this->_sql_run_sql($statements);
}
/**
* Add new column
*/