method

to_a

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What's this?

to_a() public

Returns a new Array containing each key-value pair in the database.

Example:

require 'sdbm'

SDBM.open 'my_database' do |db|
  db.update('apple' => 'fruit', 'spinach' => 'vegetable')

  db.to_a  #=> [["apple", "fruit"], ["spinach", "vegetable"]]
end

Show source

static VALUE
fsdbm_to_a(VALUE obj)
{
    datum key, val;
    struct dbmdata *dbmp;
    DBM *dbm;
    VALUE ary;

    GetDBM2(obj, dbmp, dbm);
    ary = rb_ary_new();
    for (key = sdbm_firstkey(dbm); key.dptr; key = sdbm_nextkey(dbm)) {
        val = sdbm_fetch(dbm, key);
        rb_ary_push(ary, rb_assoc_new(rb_external_str_new(key.dptr, key.dsize),
                                      rb_external_str_new(val.dptr, val.dsize)));
    }

    return ary;
}

to_a

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