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Support cascade deletion

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This commit is contained in:
WQY\qiong
2023-02-04 13:45:14 +08:00
parent 633a616d39
commit 804e1c7796
38 changed files with 1272 additions and 707 deletions
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13
api/s16_emitters.py
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@@ -1,4 +1,4 @@
from .operation import *
from .database import *
def get_emitter_schema(name: str) -> dict[str, dict[str, Any]]:
@@ -30,7 +30,7 @@ class Emitter(object):
return { 'type': self.type, 'junction': self.junction, 'coefficient': self.coefficient }
def set_emitter_cache(name: str, cs: ChangeSet) -> DbChangeSet:
def set_emitter_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
old = Emitter(get_emitter(name, cs.operations[0]['junction']))
raw_new = get_emitter(name, cs.operations[0]['junction'])
@@ -56,7 +56,7 @@ def set_emitter_cache(name: str, cs: ChangeSet) -> DbChangeSet:
def set_emitter(name: str, cs: ChangeSet) -> ChangeSet:
return execute_command(name, set_emitter_cache(name, cs))
return execute_command(name, set_emitter_cmd(name, cs))
class InpEmitter:
@@ -90,3 +90,10 @@ def inp_out_emitter(name: str) -> list[str]:
coefficient = obj['coefficient']
lines.append(f'{junction} {coefficient}')
return lines
def delete_emitter_by_junction(name: str, junction: str) -> ChangeSet:
row = try_read(name, f"select * from emitters where junction = '{junction}'")
if row == None:
return ChangeSet()
return ChangeSet(g_update_prefix | {'type' : 'emitter', 'junction': junction, 'coefficient': None})