-extern class Statement `{sqlite3_stmt*`}
- super PrepareResult
-
- fun step: Sqlite3Code `{
- return sqlite3_step(recv);
- `}
-
- fun column_name(i: Int) : String import String::from_cstring `{
- const char * name = (sqlite3_column_name(recv, i));
- if(name == NULL){
- name = "";
- }
- char * ret = (char *) name;
- return new_String_from_cstring(ret);
- `}
-
- fun column_bytes(i: Int) : Int `{
- return sqlite3_column_bytes(recv, i);
- `}
-
- fun column_double(i: Int) : Float `{
- return sqlite3_column_double(recv, i);
- `}
-
- fun column_int(i: Int) : Int `{
- return sqlite3_column_int(recv, i);
- `}
-
- fun column_text(i: Int) : String import String::from_cstring `{
- char * ret = (char *) sqlite3_column_text(recv, i);
- if( ret == NULL ){
- ret = "";
- }
- return new_String_from_cstring(ret);
- `}
-
- fun column_type(i: Int) : Int `{
- return sqlite3_column_type(recv, i);
- `}
-
- # fun column_blob(i : Int) : String `{
- # TODO
- # `}
-
- fun column_count: Int `{
- return sqlite3_column_count(recv);
- `}
+# An entry on a `StatementRow`
+class StatementEntry
+ # Statement linked to `self`
+ var statement: Statement
+
+ private var index: Int
+
+ # Name of the column
+ #
+ # require: `self.statement.is_open`
+ var name: String is lazy do
+ assert statement_closed: statement.is_open
+
+ var cname = statement.native_statement.column_name(index)
+ assert not cname.address_is_null
+ return cname.to_s
+ end
+
+ # Get the value of this entry according to its Sqlite type
+ #
+ # require: `self.statement.is_open`
+ fun value: nullable Sqlite3Data
+ do
+ assert statement_closed: statement.is_open
+
+ var data_type = statement.native_statement.column_type(index)
+ if data_type.is_integer then return to_i
+ if data_type.is_float then return to_f
+ if data_type.is_blob then return to_blob
+ if data_type.is_null then return null
+ if data_type.is_text then return to_s
+ abort
+ end
+
+ # Get this entry as `Int`
+ #
+ # If the Sqlite type of this entry is not an integer, it will be `CAST` to
+ # integer. If `null`, returns 0.
+ #
+ # require: `self.statement.is_open`
+ fun to_i: Int
+ do
+ assert statement_closed: statement.is_open
+
+ return statement.native_statement.column_int(index)
+ end
+
+ # Get this entry as `Float`
+ #
+ # If the Sqlite type of this entry is not a floating point, it will be `CAST`
+ # to float. If `null`, returns 0.0.
+ #
+ # require: `self.statement.is_open`
+ fun to_f: Float
+ do
+ assert statement_closed: statement.is_open
+
+ return statement.native_statement.column_double(index)
+ end
+
+ # Get this entry as `String`
+ #
+ # If the Sqlite type of this entry is not text, it will be `CAST` to text.
+ # If null, returns an empty string.
+ #
+ # require: `self.statement.is_open`
+ redef fun to_s
+ do
+ assert statement_closed: statement.is_open
+
+ var c_string = statement.native_statement.column_text(index)
+ if c_string.address_is_null then return ""
+ return c_string.to_s_with_copy
+ end
+
+ # Get this entry as `Blob`
+ #
+ # If the Sqlite type of this entry is not a blob, it will be `CAST` to text.
+ # If null, returns a NULL pointer.
+ #
+ # require: `self.statement.is_open`
+ fun to_blob: Blob
+ do
+ assert statement_closed: statement.is_open
+
+ # By spec, we must get the pointer before the byte count
+ var pointer = statement.native_statement.column_blob(index)
+ var length = statement.native_statement.column_bytes(index)
+
+ return new Blob(pointer, length)
+ end