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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/vlib/sqlite/orm.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/old/vlib/sqlite/orm.v')
-rw-r--r--v_windows/v/old/vlib/sqlite/orm.v161
1 files changed, 161 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/sqlite/orm.v b/v_windows/v/old/vlib/sqlite/orm.v
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+module sqlite
+
+import orm
+import time
+
+// sql expr
+
+pub fn (db DB) @select(config orm.SelectConfig, data orm.QueryData, where orm.QueryData) ?[][]orm.Primitive {
+ query := orm.orm_select_gen(config, '`', true, '?', 1, where)
+ stmt := db.new_init_stmt(query) ?
+ mut c := 1
+ sqlite_stmt_binder(stmt, where, query, mut c) ?
+ sqlite_stmt_binder(stmt, data, query, mut c) ?
+
+ defer {
+ stmt.finalize()
+ }
+
+ mut ret := [][]orm.Primitive{}
+
+ if config.is_count {
+ step := stmt.step()
+ if step !in [sqlite_row, sqlite_ok, sqlite_done] {
+ return db.error_message(step, query)
+ }
+ count := stmt.sqlite_select_column(0, 8) ?
+ ret << [count]
+ return ret
+ }
+ for {
+ step := stmt.step()
+ if step == sqlite_done {
+ break
+ }
+ if step != sqlite_ok && step != sqlite_row {
+ break
+ }
+ mut row := []orm.Primitive{}
+ for i, typ in config.types {
+ primitive := stmt.sqlite_select_column(i, typ) ?
+ row << primitive
+ }
+ ret << row
+ }
+ return ret
+}
+
+// sql stmt
+
+pub fn (db DB) insert(table string, data orm.QueryData) ? {
+ query := orm.orm_stmt_gen(table, '`', .insert, true, '?', 1, data, orm.QueryData{})
+ sqlite_stmt_worker(db, query, data, orm.QueryData{}) ?
+}
+
+pub fn (db DB) update(table string, data orm.QueryData, where orm.QueryData) ? {
+ query := orm.orm_stmt_gen(table, '`', .update, true, '?', 1, data, where)
+ sqlite_stmt_worker(db, query, data, where) ?
+}
+
+pub fn (db DB) delete(table string, where orm.QueryData) ? {
+ query := orm.orm_stmt_gen(table, '`', .delete, true, '?', 1, orm.QueryData{}, where)
+ sqlite_stmt_worker(db, query, orm.QueryData{}, where) ?
+}
+
+pub fn (db DB) last_id() orm.Primitive {
+ query := 'SELECT last_insert_rowid();'
+ id := db.q_int(query)
+ return orm.Primitive(id)
+}
+
+// table
+pub fn (db DB) create(table string, fields []orm.TableField) ? {
+ query := orm.orm_table_gen(table, '`', true, 0, fields, sqlite_type_from_v, false) or {
+ return err
+ }
+ sqlite_stmt_worker(db, query, orm.QueryData{}, orm.QueryData{}) ?
+}
+
+pub fn (db DB) drop(table string) ? {
+ query := 'DROP TABLE `$table`;'
+ sqlite_stmt_worker(db, query, orm.QueryData{}, orm.QueryData{}) ?
+}
+
+// helper
+
+fn sqlite_stmt_worker(db DB, query string, data orm.QueryData, where orm.QueryData) ? {
+ stmt := db.new_init_stmt(query) ?
+ mut c := 1
+ sqlite_stmt_binder(stmt, data, query, mut c) ?
+ sqlite_stmt_binder(stmt, where, query, mut c) ?
+ stmt.orm_step(query) ?
+ stmt.finalize()
+}
+
+fn sqlite_stmt_binder(stmt Stmt, d orm.QueryData, query string, mut c &int) ? {
+ for data in d.data {
+ err := bind(stmt, c, data)
+
+ if err != 0 {
+ return stmt.db.error_message(err, query)
+ }
+ c++
+ }
+}
+
+fn bind(stmt Stmt, c &int, data orm.Primitive) int {
+ mut err := 0
+ match data {
+ i8, i16, int, byte, u16, u32, bool {
+ err = stmt.bind_int(c, int(data))
+ }
+ i64, u64 {
+ err = stmt.bind_i64(c, i64(data))
+ }
+ f32, f64 {
+ err = stmt.bind_f64(c, unsafe { *(&f64(&data)) })
+ }
+ string {
+ err = stmt.bind_text(c, data)
+ }
+ time.Time {
+ err = stmt.bind_int(c, int(data.unix))
+ }
+ orm.InfixType {
+ err = bind(stmt, c, data.right)
+ }
+ }
+ return err
+}
+
+fn (stmt Stmt) sqlite_select_column(idx int, typ int) ?orm.Primitive {
+ mut primitive := orm.Primitive(0)
+
+ if typ in orm.nums || typ == -1 {
+ primitive = stmt.get_int(idx)
+ } else if typ in orm.num64 {
+ primitive = stmt.get_i64(idx)
+ } else if typ in orm.float {
+ primitive = stmt.get_f64(idx)
+ } else if typ == orm.string {
+ primitive = stmt.get_text(idx).clone()
+ } else if typ == orm.time {
+ primitive = time.unix(stmt.get_int(idx))
+ } else {
+ return error('Unknown type $typ')
+ }
+
+ return primitive
+}
+
+fn sqlite_type_from_v(typ int) ?string {
+ return if typ in orm.nums || typ < 0 || typ in orm.num64 {
+ 'INTEGER'
+ } else if typ in orm.float {
+ 'REAL'
+ } else if typ == orm.string {
+ 'TEXT'
+ } else {
+ error('Unknown type $typ')
+ }
+}