44 lines
835 B
Go
44 lines
835 B
Go
package ramdb
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type database struct {
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tables map[string]*table
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}
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// NewDatabase initializes a new database with no tables.
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func NewDatabase() *database {
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return &database{
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tables: make(map[string]*table),
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}
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}
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// From selects a table for running commands.
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func (db *database) From(tablename string) *table {
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t, ok := db.tables[tablename]
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if !ok {
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return &table{}
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}
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return t
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}
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// CreateTable creates a new table in the database with indexes for each column specified.
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func (db *database) CreateTable(tablename string, indexOnColumns ...string) error {
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if _, found := db.tables[tablename]; found {
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return ErrTableExists
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}
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tbl := &table{
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exists: true,
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}
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for _, onColumn := range indexOnColumns {
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err := tbl.CreateIndex(onColumn)
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if err != nil {
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return err
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}
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}
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db.tables[tablename] = tbl
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return nil
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}
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