mirror of
https://github.com/TakeV-Lambda/dino.git
synced 2024-09-05 19:03:40 +00:00
188 lines
6 KiB
Vala
188 lines
6 KiB
Vala
using Sqlite;
|
|
|
|
namespace Qlite {
|
|
|
|
public abstract class Column<T> {
|
|
public const string DEFALT_TABLE_NAME = "";
|
|
|
|
public string name { get; private set; }
|
|
public string? default { get; set; }
|
|
public int sqlite_type { get; private set; }
|
|
public bool primary_key { get; set; }
|
|
public bool auto_increment { get; set; }
|
|
public bool unique { get; set; }
|
|
public virtual bool not_null { get; set; }
|
|
public long min_version { get; set; default = -1; }
|
|
public long max_version { get; set; default = long.MAX; }
|
|
internal Table table { get; set; }
|
|
|
|
public abstract T get(Row row, string? table_name = DEFALT_TABLE_NAME);
|
|
|
|
public virtual bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return false;
|
|
}
|
|
|
|
internal abstract void bind(Statement stmt, int index, T value);
|
|
|
|
public string to_string() {
|
|
return table == null ? name : (table.name + "." + name);
|
|
}
|
|
|
|
public string to_column_definition() {
|
|
string res = name;
|
|
switch (sqlite_type) {
|
|
case INTEGER:
|
|
res += " INTEGER";
|
|
break;
|
|
case FLOAT:
|
|
res += " REAL";
|
|
break;
|
|
case TEXT:
|
|
res += " TEXT";
|
|
break;
|
|
default:
|
|
res += " UNKNOWN";
|
|
break;
|
|
}
|
|
if (primary_key) {
|
|
res += " PRIMARY KEY";
|
|
if (auto_increment) res += " AUTOINCREMENT";
|
|
}
|
|
if (not_null) res += " NOT NULL";
|
|
if (unique) res += " UNIQUE";
|
|
if (default != null) res += @" DEFAULT $((!) default)";
|
|
|
|
return res;
|
|
}
|
|
|
|
public Column(string name, int type) {
|
|
this.name = name;
|
|
this.sqlite_type = type;
|
|
}
|
|
|
|
public class Integer : Column<int> {
|
|
public Integer(string name) {
|
|
base(name, INTEGER);
|
|
}
|
|
|
|
public override int get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return (int) row.get_integer(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
public override bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return !row.has_integer(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, int value) {
|
|
stmt.bind_int(index, value);
|
|
}
|
|
}
|
|
|
|
public class Long : Column<long> {
|
|
public Long(string name) {
|
|
base(name, INTEGER);
|
|
}
|
|
|
|
public override long get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return (long) row.get_integer(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
public override bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return !row.has_integer(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, long value) {
|
|
stmt.bind_int64(index, value);
|
|
}
|
|
}
|
|
|
|
public class Real : Column<double> {
|
|
public Real(string name) {
|
|
base(name, FLOAT);
|
|
}
|
|
|
|
public override double get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return row.get_real(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
public override bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return !row.has_real(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, double value) {
|
|
stmt.bind_double(index, value);
|
|
}
|
|
}
|
|
|
|
public class Text : Column<string?> {
|
|
public Text(string name) {
|
|
base(name, TEXT);
|
|
}
|
|
|
|
public override string? get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return row.get_text(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
public override bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return get(row, table_name == DEFALT_TABLE_NAME ? table.name : table_name) == null;
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, string? value) {
|
|
if (value != null) {
|
|
stmt.bind_text(index, (!) value);
|
|
} else {
|
|
stmt.bind_null(index);
|
|
}
|
|
}
|
|
}
|
|
|
|
public class NonNullText : Column<string> {
|
|
public NonNullText(string name) {
|
|
base(name, TEXT);
|
|
}
|
|
|
|
public override bool not_null { get { return true; } set {} }
|
|
|
|
public override string get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return (!)row.get_text(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name);
|
|
}
|
|
|
|
public override bool is_null(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return false;
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, string value) {
|
|
stmt.bind_text(index, (!) value);
|
|
}
|
|
}
|
|
|
|
public class BoolText : Column<bool> {
|
|
public BoolText(string name) {
|
|
base(name, TEXT);
|
|
}
|
|
|
|
public override bool get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return row.get_text(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name) == "1";
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, bool value) {
|
|
stmt.bind_text(index, value ? "1" : "0");
|
|
}
|
|
}
|
|
|
|
public class BoolInt : Column<bool> {
|
|
public BoolInt(string name) {
|
|
base(name, INTEGER);
|
|
}
|
|
|
|
public override bool get(Row row, string? table_name = DEFALT_TABLE_NAME) {
|
|
return row.get_integer(name, table_name == DEFALT_TABLE_NAME ? table.name : table_name) == 1;
|
|
}
|
|
|
|
internal override void bind(Statement stmt, int index, bool value) {
|
|
stmt.bind_int(index, value ? 1 : 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
} |