The constitution is the source of all law in the country. That is what it says in the constitution (Article 6).Happy now?
While you have made much more of an effort on this than I have or will that is not what Article 6 says.
1. All powers of government, legislative, executive and judicial, derive, under God, from the people, whose right it is to designate the rulers of the State and, in final appeal, to decide all questions of national policy, according to the requirements of the common good.
2. These powers of government are exercisable only by or on the authority of the organs of State established by this Constitution.
The Constitution isn't the source of all law by a long way. Common law and tort law principles that predate it are still in use today. The Constitution is only a guide, European laws that are not imcompatible with the Constitution are a source of law in the country.