database.triggers_dict, closes #216

docs/python-api.rst

@@ -1476,6 +1476,15 @@ The ``table.triggers_dict`` property returns the triggers for that table as a di
      'authors_ad': 'CREATE TRIGGER [authors_ad] AFTER DELETE...',
      'authors_au': 'CREATE TRIGGER [authors_au] AFTER UPDATE'}
 
+The same property exists on the database, and will return all triggers across all tables:
+
+::
+
+    >>> db.triggers_dict
+    {'authors_ai': 'CREATE TRIGGER [authors_ai] AFTER INSERT...',
+     'authors_ad': 'CREATE TRIGGER [authors_ad] AFTER DELETE...',
+     'authors_au': 'CREATE TRIGGER [authors_au] AFTER UPDATE'}
+
 The ``detect_fts()`` method returns the associated SQLite FTS table name, if one exists for this table. If the table has not been configured for full-text search it returns ``None``.
 
 ::

sqlite_utils/db.py

@@ -272,6 +272,11 @@ class Database:
             ).fetchall()
         ]
 
+    @property
+    def triggers_dict(self):
+        "Returns {trigger_name: sql} dictionary"
+        return {trigger.name: trigger.sql for trigger in self.triggers}
+
     @property
     def journal_mode(self):
         return self.execute("PRAGMA journal_mode;").fetchone()[0]

tests/test_introspect.py

@@ -127,9 +127,10 @@ def test_triggers_and_triggers_dict(fresh_db):
         ]
     )
     fresh_db["other"].insert({"foo": "bar"})
-    assert [] == authors.triggers
+    assert authors.triggers == []
-    assert {} == authors.triggers_dict
+    assert authors.triggers_dict == {}
-    assert [] == fresh_db["other"].triggers
+    assert fresh_db["other"].triggers == []
+    assert fresh_db.triggers_dict == {}
     authors.enable_fts(
         ["name", "famous_works"], fts_version="FTS4", create_triggers=True
     )
@@ -142,13 +143,15 @@ def test_triggers_and_triggers_dict(fresh_db):
     assert expected_triggers == {
         (t.name, t.table) for t in fresh_db["authors"].triggers
     }
-    assert authors.triggers_dict == {
+    expected_triggers = {
         "authors_ai": "CREATE TRIGGER [authors_ai] AFTER INSERT ON [authors] BEGIN\n  INSERT INTO [authors_fts] (rowid, [name], [famous_works]) VALUES (new.rowid, new.[name], new.[famous_works]);\nEND",
         "authors_ad": "CREATE TRIGGER [authors_ad] AFTER DELETE ON [authors] BEGIN\n  INSERT INTO [authors_fts] ([authors_fts], rowid, [name], [famous_works]) VALUES('delete', old.rowid, old.[name], old.[famous_works]);\nEND",
         "authors_au": "CREATE TRIGGER [authors_au] AFTER UPDATE ON [authors] BEGIN\n  INSERT INTO [authors_fts] ([authors_fts], rowid, [name], [famous_works]) VALUES('delete', old.rowid, old.[name], old.[famous_works]);\n  INSERT INTO [authors_fts] (rowid, [name], [famous_works]) VALUES (new.rowid, new.[name], new.[famous_works]);\nEND",
     }
-    assert [] == fresh_db["other"].triggers
+    assert authors.triggers_dict == expected_triggers
-    assert {} == fresh_db["other"].triggers_dict
+    assert fresh_db["other"].triggers == []
+    assert fresh_db["other"].triggers_dict == {}
+    assert fresh_db.triggers_dict == expected_triggers
 
 
 @pytest.mark.parametrize(