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use super::*; impl TableBuilder for PostgresQueryBuilder { fn prepare_column_def(&self, column_def: &ColumnDef, sql: &mut SqlWriter) { column_def.name.prepare(sql, '"'); self.prepare_column_type_check_auto_increment(column_def, sql); for column_spec in column_def.spec.iter() { if let ColumnSpec::AutoIncrement = column_spec { continue; } write!(sql, " ").unwrap(); self.prepare_column_spec(column_spec, sql); } } fn prepare_column_type(&self, column_type: &ColumnType, sql: &mut SqlWriter) { write!( sql, "{}", match column_type { ColumnType::Char(length) => match length { Some(length) => format!("char({})", length), None => "char".into(), }, ColumnType::String(length) => match length { Some(length) => format!("varchar({})", length), None => "varchar".into(), }, ColumnType::Text => "text".into(), ColumnType::TinyInteger(length) => match length { Some(length) => format!("tinyint({})", length), None => "tinyint".into(), }, ColumnType::SmallInteger(length) => match length { Some(length) => format!("smallint({})", length), None => "smallint".into(), }, ColumnType::Integer(length) => match length { Some(length) => format!("integer({})", length), None => "integer".into(), }, ColumnType::BigInteger(length) => match length { Some(length) => format!("bigint({})", length), None => "bigint".into(), }, ColumnType::Float(precision) => match precision { Some(precision) => format!("real({})", precision), None => "real".into(), }, ColumnType::Double(precision) => match precision { Some(precision) => format!("double precision({})", precision), None => "double precision".into(), }, ColumnType::Decimal(precision) => match precision { Some((precision, scale)) => format!("decimal({}, {})", precision, scale), None => "decimal".into(), }, ColumnType::DateTime(precision) => match precision { Some(precision) => format!("datetime({})", precision), None => "datetime".into(), }, ColumnType::Timestamp(precision) => match precision { Some(precision) => format!("timestamp({})", precision), None => "timestamp".into(), }, ColumnType::Time(precision) => match precision { Some(precision) => format!("time({})", precision), None => "time".into(), }, ColumnType::Date => "date".into(), ColumnType::Binary(length) => match length { Some(length) => format!("binary({})", length), None => "binary".into(), }, ColumnType::Boolean => "bool".into(), ColumnType::Money(precision) => match precision { Some((precision, scale)) => format!("money({}, {})", precision, scale), None => "money".into(), }, ColumnType::Json => "json".into(), ColumnType::JsonBinary => "jsonb".into(), ColumnType::Custom(iden) => iden.to_string(), } ) .unwrap() } fn prepare_column_spec(&self, column_spec: &ColumnSpec, sql: &mut SqlWriter) { match column_spec { ColumnSpec::Null => write!(sql, "NULL"), ColumnSpec::NotNull => write!(sql, "NOT NULL"), ColumnSpec::Default(value) => write!(sql, "DEFAULT {}", self.value_to_string(value)), ColumnSpec::AutoIncrement => write!(sql, ""), ColumnSpec::UniqueKey => write!(sql, "UNIQUE"), ColumnSpec::PrimaryKey => write!(sql, "PRIMARY KEY"), ColumnSpec::Extra(string) => write!(sql, "{}", string), } .unwrap() } fn prepare_table_partition(&self, _table_partition: &TablePartition, _sql: &mut SqlWriter) {} fn prepare_table_alter_statement(&self, alter: &TableAlterStatement, sql: &mut SqlWriter) { let alter_option = match &alter.alter_option { Some(alter_option) => alter_option, None => panic!("No alter option found"), }; write!(sql, "ALTER TABLE ").unwrap(); if let Some(table) = &alter.table { table.prepare(sql, '"'); write!(sql, " ").unwrap(); } match alter_option { TableAlterOption::AddColumn(column_def) => { write!(sql, "ADD COLUMN ").unwrap(); self.prepare_column_def(column_def, sql); } TableAlterOption::ModifyColumn(column_def) => { write!(sql, "ALTER COLUMN ").unwrap(); column_def.name.prepare(sql, '"'); write!(sql, " TYPE").unwrap(); self.prepare_column_type_check_auto_increment(column_def, sql); for column_spec in column_def.spec.iter() { if let ColumnSpec::AutoIncrement = column_spec { continue; } write!(sql, ", ").unwrap(); write!(sql, "ALTER COLUMN ").unwrap(); column_def.name.prepare(sql, '"'); write!(sql, " SET ").unwrap(); self.prepare_column_spec(column_spec, sql); } } TableAlterOption::RenameColumn(from_name, to_name) => { write!(sql, "RENAME COLUMN ").unwrap(); from_name.prepare(sql, '"'); write!(sql, " TO ").unwrap(); to_name.prepare(sql, '"'); } TableAlterOption::DropColumn(column_name) => { write!(sql, "DROP COLUMN ").unwrap(); column_name.prepare(sql, '"'); } } } fn prepare_table_rename_statement(&self, rename: &TableRenameStatement, sql: &mut SqlWriter) { write!(sql, "ALTER TABLE ").unwrap(); if let Some(from_name) = &rename.from_name { from_name.prepare(sql, '"'); } write!(sql, " RENAME TO ").unwrap(); if let Some(to_name) = &rename.to_name { to_name.prepare(sql, '"'); } } } impl PostgresQueryBuilder { fn prepare_column_type_check_auto_increment( &self, column_def: &ColumnDef, sql: &mut SqlWriter, ) { if let Some(column_type) = &column_def.types { write!(sql, " ").unwrap(); let is_auto_increment = column_def .spec .iter() .position(|s| matches!(s, ColumnSpec::AutoIncrement)); if is_auto_increment.is_some() { match &column_type { ColumnType::SmallInteger(_) => write!(sql, "smallserial").unwrap(), ColumnType::Integer(_) => write!(sql, "serial").unwrap(), ColumnType::BigInteger(_) => write!(sql, "bigserial").unwrap(), _ => unimplemented!(), } } else { self.prepare_column_type(&column_type, sql); } } } }