146 lines
3.4 KiB
V
146 lines
3.4 KiB
V
module mysql
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pub struct Result {
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result &C.MYSQL_RES
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}
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pub struct Row {
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pub mut:
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vals []string
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}
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// fetch_row fetches the next row from the result set.
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pub fn (r Result) fetch_row() &byteptr {
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return C.mysql_fetch_row(r.result)
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}
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// n_rows returns the number of rows in the result set.
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pub fn (r Result) n_rows() u64 {
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return C.mysql_num_rows(r.result)
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}
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// n_fields returns the number of columns in a result set.
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pub fn (r Result) n_fields() int {
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return C.mysql_num_fields(r.result)
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}
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// rows returns rows with `array` of columns.
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pub fn (r Result) rows() []Row {
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mut rows := []Row{}
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nr_cols := r.n_fields()
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for rr := r.fetch_row(); rr; rr = r.fetch_row() {
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mut row := Row{}
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for i in 0 .. nr_cols {
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if unsafe {rr[i] == 0} {
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row.vals << ''
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} else {
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row.vals << mystring(unsafe {byteptr(rr[i])})
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}
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}
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rows << row
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}
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return rows
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}
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// Returns rows with `map` of columns instead `array` of columns.
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pub fn (r Result) maps() []map[string]string {
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mut array_map := []map[string]string{}
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rows := r.rows()
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fields := r.fields()
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for i in 0 .. rows.len {
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mut map_val := map[string]string{}
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for j in 0 .. fields.len {
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map_val[fields[j].name] = rows[i].vals[j]
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}
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array_map << map_val
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}
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return array_map
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}
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// fields returns an array of all field structures.
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pub fn (r Result) fields() []Field {
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mut fields := []Field{}
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nr_cols := r.n_fields()
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orig_fields := C.mysql_fetch_fields(r.result)
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for i in 0 .. nr_cols {
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unsafe {fields << Field{
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name: mystring(orig_fields[i].name)
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org_name: mystring(orig_fields[i].org_name)
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table: mystring(orig_fields[i].table)
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org_table: mystring(orig_fields[i].org_table)
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db: mystring(orig_fields[i].db)
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catalog: mystring(orig_fields[i].catalog)
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def: resolve_nil_str(orig_fields[i].def)
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length: orig_fields.length
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max_length: orig_fields.max_length
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name_length: orig_fields.name_length
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org_name_length: orig_fields.org_name_length
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table_length: orig_fields.table_length
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org_table_length: orig_fields.org_table_length
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db_length: orig_fields.db_length
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catalog_length: orig_fields.catalog_length
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def_length: orig_fields.def_length
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flags: orig_fields.flags
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decimals: orig_fields.decimals
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charsetnr: orig_fields.charsetnr
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type_: FieldType(orig_fields.@type)
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}}
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}
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return fields
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}
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pub struct Field {
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name string
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org_name string
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table string
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org_table string
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db string
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catalog string
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def string
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length int
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max_length int
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name_length u32
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org_name_length u32
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table_length u32
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org_table_length u32
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db_length u32
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catalog_length u32
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def_length u32
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flags u32
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decimals u32
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charsetnr u32
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type_ FieldType
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}
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pub fn (f Field) str() string {
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return '
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{
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name: "$f.name"
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org_name: "$f.org_name"
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table: "$f.table"
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org_table: "$f.org_table"
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db: "$f.db"
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catalog: "$f.catalog"
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def: "$f.def"
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length: $f.length
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max_length: $f.max_length
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name_length: $f.name_length
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org_name_length: $f.org_name_length
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table_length: $f.table_length
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org_table_length: $f.org_table_length
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db_length: $f.db_length
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catalog_length: $f.catalog_length
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def_length: $f.def_length
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flags: $f.flags
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decimals: $f.decimals
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charsetnr: $f.charsetnr
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type: $f.type_.str()
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}
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'
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}
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// free frees memory used by a result set
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pub fn (r Result) free() {
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C.mysql_free_result(r.result)
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}
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