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Support of utf8mb4

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This commit is contained in:
Michael Vogel 2016-10-01 08:21:37 +00:00
parent 21b2bfc806
commit efd574ab83
1 changed files with 37 additions and 23 deletions
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60
include/dbstructure.php
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@ -79,7 +79,11 @@ function table_structure($table) {
continue;
$column = $index["Column_name"];
if ($index["Sub_part"] != "")
// On utf8mb4 a varchar index can only have a length of 191
// To avoid the need to add this to every index definition we just ignore it here.
// Exception are primary indexes
// Since there are some combindex primary indexes we use the limit of 180 here.
if (($index["Sub_part"] != "") AND (($index["Sub_part"] < 180) OR ($index["Key_name"] == "PRIMARY")))
$column .= "(".$index["Sub_part"].")";
$indexdata[$index["Key_name"]][] = $column;
@ -104,7 +108,7 @@ function table_structure($table) {
return(array("fields"=>$fielddata, "indexes"=>$indexdata));
}
function print_structure($database) {
function print_structure($database, $charset) {
echo "-- ------------------------------------------\n";
echo "-- ".FRIENDICA_PLATFORM." ".FRIENDICA_VERSION." (".FRIENDICA_CODENAME,")\n";
echo "-- DB_UPDATE_VERSION ".DB_UPDATE_VERSION."\n";
@ -113,7 +117,7 @@ function print_structure($database) {
echo "--\n";
echo "-- TABLE $name\n";
echo "--\n";
db_create_table($name, $structure['fields'], true, false, $structure["indexes"]);
db_create_table($name, $structure['fields'], $charset, true, false, $structure["indexes"]);
echo "\n";
}
@ -122,6 +126,11 @@ function print_structure($database) {
function update_structure($verbose, $action, $tables=null, $definition=null) {
global $a, $db;
if (isset($a->config["system"]["db_charset"]))
$charset = $a->config["system"]["db_charset"];
else
$charset = "utf8";
$errors = false;
logger('updating structure', LOGGER_DEBUG);
@ -140,7 +149,7 @@ function update_structure($verbose, $action, $tables=null, $definition=null) {
// Get the definition
if (is_null($definition))
$definition = db_definition();
$definition = db_definition($charset);
// Compare it
@ -148,7 +157,7 @@ function update_structure($verbose, $action, $tables=null, $definition=null) {
$is_new_table = False;
$sql3="";
if (!isset($database[$name])) {
$r = db_create_table($name, $structure["fields"], $verbose, $action, $structure['indexes']);
$r = db_create_table($name, $structure["fields"], $charset, $verbose, $action, $structure['indexes']);
if(false === $r) {
$errors .= t('Errors encountered creating database tables.').$name.EOL;
}
@ -257,16 +266,9 @@ function db_field_command($parameters, $create = true) {
return($fieldstruct);
}
function db_create_table($name, $fields, $verbose, $action, $indexes=null) {
function db_create_table($name, $fields, $charset, $verbose, $action, $indexes=null) {
global $a, $db;
if (isset($a->config["system"]["db_charset"]))
$charset = $a->config["system"]["db_charset"];
elseif (!$action) // Used for dumpsql
$charset = "utf8mb4";
else
$charset = "utf8";
$r = true;
$sql = "";
@ -322,11 +324,6 @@ function db_create_index($indexname, $fieldnames, $method="ADD") {
killme();
}
if ($indexname == "PRIMARY") {
return sprintf("%s PRIMARY KEY(`%s`)", $method, implode("`,`", $fieldnames));
}
$names = "";
foreach ($fieldnames AS $fieldname) {
if ($names != "")
@ -338,12 +335,27 @@ function db_create_index($indexname, $fieldnames, $method="ADD") {
$names .= "`".dbesc($fieldname)."`";
}
if ($indexname == "PRIMARY") {
//return sprintf("%s PRIMARY KEY(`%s`)", $method, implode("`,`", $fieldnames));
return sprintf("%s PRIMARY KEY(%s)", $method, $names);
}
$sql = sprintf("%s INDEX `%s` (%s)", $method, dbesc($indexname), $names);
return($sql);
}
function db_definition() {
function db_index_suffix($charset, $reduce = 0) {
if ($charset != "utf8mb4")
return "";
// On utf8mb4 indexes can only have a length of 191
$indexlength = 191 - $reduce;
return "(".$indexlength.")";
}
function db_definition($charset) {
$database = array();
@ -401,7 +413,7 @@ function db_definition() {
"updated" => array("type" => "datetime", "not null" => "1", "default" => "0000-00-00 00:00:00"),
),
"indexes" => array(
"PRIMARY" => array("k"),
"PRIMARY" => array("k".db_index_suffix($charset)),
"updated" => array("updated"),
)
);
@ -1022,7 +1034,7 @@ function db_definition() {
"created" => array("type" => "datetime", "not null" => "1", "default" => "0000-00-00 00:00:00"),
),
"indexes" => array(
"PRIMARY" => array("url"),
"PRIMARY" => array("url".db_index_suffix($charset)),
"created" => array("created"),
)
);
@ -1035,7 +1047,7 @@ function db_definition() {
"created" => array("type" => "datetime", "not null" => "1", "default" => "0000-00-00 00:00:00"),
),
"indexes" => array(
"PRIMARY" => array("url", "guessing", "oembed"),
"PRIMARY" => array("url".db_index_suffix($charset), "guessing", "oembed"),
"created" => array("created"),
)
);
@ -1478,7 +1490,9 @@ function dbstructure_run(&$argv, &$argc) {
set_config('system','build',DB_UPDATE_VERSION);
return;
case "dumpsql":
print_structure(db_definition());
// For the dump that is used to create the database.sql we always assume utfmb4
$charset = "utf8mb4";
print_structure(db_definition($charset), $charset);
return;
}
}