M lib/core.nim → lib/core.nim

@@ -74,6 +74,7 @@ LOG.debug("Executing PRAGMAs...")
     discard result.db.tryExec("PRAGMA locking_mode = exclusive".sql)
     discard result.db.tryExec("PRAGMA page_size = 4096".sql)
     discard result.db.tryExec("PRAGMA cache_size = 10000".sql)
+    discard result.db.tryExec("PRAGMA foreign_keys = ON".sql)
     LOG.debug("Done.")
     result.path = file
     result.mount = ""
@@ -243,7 +244,6 @@ result = store.db.execAffectedRows(SQL_DELETE_DOCUMENT, id)
     if result > 0:
       store.db.exec(SQL_DECREMENT_DOCS)
       store.db.exec(SQL_DELETE_SEARCHCONTENT, id)
-      store.db.exec(SQL_DELETE_DOCUMENT_TAGS, id)
       if store.hasMirror and id.startsWith(store.mount):
         var filename = id.unixToNativePath
         if fileExists(filename):

M lib/queries.nim → lib/queries.nim

@@ -6,7 +6,7 @@ 
 const SQL_CREATE_DOCUMENTS_TABLE* = sql"""
 CREATE TABLE documents (
 docid INTEGER PRIMARY KEY,
-id TEST,
+id TEXT UNIQUE NOT NULL,
 data TEXT,
 content_type TEXT,
 binary INTEGER,
@@ -33,15 +33,16 @@ SQL_VACUUM* = sql"VACUUM"
 
 const SQL_CREATE_SEARCHDATA_TABLE* = sql"""
 CREATE VIRTUAL TABLE searchdata USING fts4(
-id TEXT,
+id TEXT UNIQUE NOT NULL,
 data TEXT, 
 tokenize=porter)
 """
 
 const SQL_CREATE_TAGS_TABLE* = sql"""
 CREATE TABLE tags (
-tag_id TEXT,
-document_id TEXT,
+tag_id TEXT NOT NULL,
+document_id TEXT NOT NULL,
+FOREIGN KEY(document_id) REFERENCES documents(id) ON DELETE CASCADE,
 PRIMARY KEY (tag_id, document_id))
 """