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MDL-35691 fix max length calculation in pg, mysql and our bigint checker

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This commit is contained in:
Petr Škoda 2012-10-02 16:21:17 +02:00
parent ccd90e765e
commit 3c17c85ae6
3 changed files with 45 additions and 30 deletions
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32
lib/dml/mysqli_native_moodle_database.php
View file

@ -570,7 +570,18 @@ class mysqli_native_moodle_database extends moodle_database {
} else if (preg_match('/([a-z]*int[a-z]*)\((\d+)\)/i', $rawcolumn->column_type, $matches)) {
$rawcolumn->data_type = $matches[1];
$rawcolumn->character_maximum_length = $matches[2];
// Return number of decimals, not bytes here.
if ($matches[2] >= 8) {
$rawcolumn->max_length = 18;
} else if ($matches[2] >= 4) {
$rawcolumn->max_length = 9;
} else if ($matches[2] >= 2) {
$rawcolumn->max_length = 4;
} else if ($matches[2] >= 1) {
$rawcolumn->max_length = 2;
} else {
$rawcolumn->max_length = 0;
}
} else if (preg_match('/(decimal)\((\d+),(\d+)\)/i', $rawcolumn->column_type, $matches)) {
$rawcolumn->data_type = $matches[1];
@ -631,7 +642,26 @@ class mysqli_native_moodle_database extends moodle_database {
$info->meta_type = 'R';
$info->unique = true;
}
// Return number of decimals, not bytes here.
$info->max_length = $rawcolumn->numeric_precision;
if (preg_match('/([a-z]*int[a-z]*)\((\d+)\)/i', $rawcolumn->column_type, $matches)) {
if ($matches[2] >= 8) {
$maxlength = 18;
} else if ($matches[2] >= 4) {
$maxlength = 9;
} else if ($matches[2] >= 2) {
$maxlength = 4;
} else if ($matches[2] >= 1) {
$maxlength = 2;
} else {
$maxlength = 0;
}
// It is possible that display precision is different from storage type length,
// always use the smaller value to make sure our data fits.
if ($maxlength < $info->max_length) {
$info->max_length = $maxlength;
}
}
$info->unsigned = (stripos($rawcolumn->column_type, 'unsigned') !== false);
$info->auto_increment= (strpos($rawcolumn->extra, 'auto_increment') !== false);

13
lib/dml/pgsql_native_moodle_database.php
View file

@ -463,7 +463,18 @@ class pgsql_native_moodle_database extends moodle_database {
$info->auto_increment= false;
$info->has_default = ($rawcolumn->atthasdef === 't');
}
$info->max_length = $matches[1];
// Return number of decimals, not bytes here.
if ($matches[1] >= 8) {
$info->max_length = 18;
} else if ($matches[1] >= 4) {
$info->max_length = 9;
} else if ($matches[1] >= 2) {
$info->max_length = 4;
} else if ($matches[1] >= 1) {
$info->max_length = 2;
} else {
$info->max_length = 0;
}
$info->scale = null;
$info->not_null = ($rawcolumn->attnotnull === 't');
if ($info->has_default) {