Method: Oj::Doc#fetch

Defined in:
ext/oj/fast.c

#fetch(path = nil, default = nil) ⇒ Object

Hash

Returns the value at the location identified by the path or the current location if the path is nil or not provided. This method will create and return an Array or Hash if that is the type of Object at the location specified. This is more expensive than navigating to the leaves of the JSON document. If a default is provided that is used if no value if found.

@param [String] path path to the location to get the type of if provided

Examples:

Oj::Doc.open('[1,2]') { |doc| doc.fetch() }      #=> [1, 2]
Oj::Doc.open('[1,2]') { |doc| doc.fetch('/1') }  #=> 1
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# File 'ext/oj/fast.c', line 1331

static VALUE doc_fetch(int argc, VALUE *argv, VALUE self) {
    Doc            doc;
    Leaf           leaf;
    volatile VALUE val  = Qnil;
    const char    *path = 0;

    doc = self_doc(self);
    if (1 <= argc) {
        path = StringValuePtr(*argv);
        if (2 == argc) {
            val = argv[1];
        }
    }
    if (0 != (leaf = get_doc_leaf(doc, path))) {
        val = leaf_value(doc, leaf);
    }
    return val;
}