As discussed in the review, these views must remain simple. No need to have extended searching options for storage media, anyway. bzr revid: p_christ@hol.gr-20100625121646-8lps6xi11e66fz79
To be done: ----------- * Test to not create several times the same file / directory -> May be put a sql_constraints uniq on several files -> test through remove or put * Retest everything