Get base

api/_0_base.py

@@ -1,4 +1,5 @@
 from _connection import _conn_dict as conn
+from psycopg.rows import dict_row
 
 _NODE = "_NODE"
 _LINK = "_LINK"
@@ -52,6 +53,28 @@ def have_pattern(name: str, id: str) -> bool:
     return _have_impl(name, id, _PATTERN)
 
 
+# get
+def _get_impl(name: str, id: str, table: str) -> dict[str, str]:
+    with conn[name].cursor(row_factory=dict_row) as cur:
+        cur.execute(f"SELECT * FROM {table} WHERE ID = '{id}'")
+        if cur.rowcount > 0:
+            return cur.fetchone()
+        else:
+            return {}
+
+def get_node(name: str, id: str) -> dict[str, str]:
+    return _get_impl(name, id, _NODE)
+
+def get_link(name: str, id: str) -> dict[str, str]:
+    return _get_impl(name, id, _LINK)
+
+def get_curve(name: str, id: str) -> dict[str, str]:
+    return _get_impl(name, id, _CURVE)
+
+def get_pattern(name: str, id: str) -> dict[str, str]:
+    return _get_impl(name, id, _PATTERN)
+
+
 # delete
 
 def _delete_impl(name: str, id: str, table: str) -> None:

api/_0_base_test.py

@@ -4,21 +4,25 @@ from _0_base import *
 open_project("net")
 
 add_node("net", "n-1", JUNCTION)
+print(get_node("net", "n-1"))
 if have_node("net", "n-1"):
     delete_node("net", "n-1")
 print(have_node("net", "n-1"))
 
 add_link("net", "l-1", PIPE)
+print(get_link("net", "l-1"))
 if have_link("net", "l-1"):
     delete_link("net", "l-1")
 print(have_link("net", "l-1"))
 
 add_curve("net", "c-1")
+print(get_curve("net", "c-1"))
 if have_curve("net", "c-1"):
     delete_curve("net", "c-1")
 print(have_curve("net", "c-1"))
 
 add_pattern("net", "p-1")
+print(get_pattern("net", "p-1"))
 if have_pattern("net", "p-1"):
     delete_pattern("net", "p-1")
 print(have_pattern("net", "p-1"))