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-rw-r--r--Bugzilla/DB/Schema/Sqlite.pm35
1 files changed, 26 insertions, 9 deletions
diff --git a/Bugzilla/DB/Schema/Sqlite.pm b/Bugzilla/DB/Schema/Sqlite.pm
index a18fd5c80..4730c4f9f 100644
--- a/Bugzilla/DB/Schema/Sqlite.pm
+++ b/Bugzilla/DB/Schema/Sqlite.pm
@@ -76,10 +76,25 @@ sub _sqlite_create_table {
undef, $table);
}
+sub _sqlite_table_lines {
+ my $self = shift;
+ my $table_sql = $self->_sqlite_create_table(@_);
+ $table_sql =~ s/\n*\)$//s;
+ # The $ makes this work even if people some day add crazy stuff to their
+ # schema like multi-column foreign keys.
+ return split(/,\s*$/m, $table_sql);
+}
+
# This does most of the "heavy lifting" of the schema-altering functions.
sub _sqlite_alter_schema {
my ($self, $table, $create_table, $options) = @_;
+ # $create_table is sometimes an array in the form that _sqlite_table_lines
+ # returns.
+ if (ref $create_table) {
+ $create_table = join(',', @$create_table) . "\n)";
+ }
+
my $dbh = Bugzilla->dbh;
my $random = generate_random_password(5);
@@ -257,21 +272,23 @@ sub get_rename_column_ddl {
sub get_add_fks_sql {
my ($self, $table, $column_fks) = @_;
+ my @clauses = $self->_sqlite_table_lines($table);
my @add = $self->_column_fks_to_ddl($table, $column_fks);
- my $table_sql = $self->_sqlite_create_table($table);
- my $add_lines = join("\n,", @add) . "\n";
- $table_sql =~ s/\)$/$add_lines)/s
- || die "Can't find end of CREATE TABLE: $table_sql";
- return $self->_sqlite_alter_schema($table, $table_sql);
+ push(@clauses, @add);
+ return $self->_sqlite_alter_schema($table, \@clauses);
}
sub get_drop_fk_sql {
my ($self, $table, $column, $references) = @_;
- my $table_sql = $self->_sqlite_create_table($table);
+ my @clauses = $self->_sqlite_table_lines($table);
my $fk_name = $self->_get_fk_name($table, $column, $references);
- $table_sql =~ s/^\s+CONSTRAINT $fk_name.*?ON DELETE \S+,?$//ms
- || die "Can't find $fk_name: $table_sql";
- return $self->_sqlite_alter_schema($table, $table_sql);
+
+ my $line_re = qr/^\s+CONSTRAINT $fk_name /s;
+ grep { $line_re } @clauses
+ or die "Can't find $fk_name: " . join(',', @clauses);
+ @clauses = grep { $_ !~ $line_re } @clauses;
+
+ return $self->_sqlite_alter_schema($table, \@clauses);
}