pylint and sqlalchemy 1.4
This commit is contained in:
Lex Berezhny
parent
0b6d01fecc
commit
53fc94d688
3 changed files with 105 additions and 257 deletions
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@ -1,13 +1,15 @@
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# pylint: disable=singleton-comparison
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import logging
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import asyncio
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import sqlite3
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from binascii import hexlify
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from concurrent.futures.thread import ThreadPoolExecutor
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from typing import Tuple, List, Union, Any, Iterable, Dict, Optional
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from typing import List, Union, Iterable, Optional
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from datetime import date
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import sqlalchemy
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from sqlalchemy import select, text, and_, union, func
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from sqlalchemy.future import select
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from sqlalchemy import text, and_, union, func, inspect
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from sqlalchemy.sql.expression import Select
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try:
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from sqlalchemy.dialects.postgresql import insert as pg_insert
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@ -28,7 +30,7 @@ sqlite3.enable_callback_tracebacks(True)
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def insert_or_ignore(conn, table):
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if conn.dialect.name == 'sqlite':
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return table.insert(prefixes=("OR IGNORE",))
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return table.insert().prefix_with("OR IGNORE")
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elif conn.dialect.name == 'postgresql':
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return pg_insert(table).on_conflict_do_nothing()
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else:
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@ -37,7 +39,7 @@ def insert_or_ignore(conn, table):
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def insert_or_replace(conn, table, replace):
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if conn.dialect.name == 'sqlite':
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return table.insert(prefixes=("OR REPLACE",))
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return table.insert().prefix_with("OR REPLACE")
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elif conn.dialect.name == 'postgresql':
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insert = pg_insert(table)
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return insert.on_conflict_do_update(
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@ -47,13 +49,6 @@ def insert_or_replace(conn, table, replace):
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raise RuntimeError(f'Unknown database dialect: {conn.dialect.name}.')
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def dict_to_clause(t, d):
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clauses = []
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for key, value in d.items():
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clauses.append(getattr(t.c, key) == value)
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return and_(*clauses)
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def constrain_single_or_list(constraints, column, value, convert=lambda x: x):
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if value is not None:
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if isinstance(value, list):
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@ -67,116 +62,6 @@ def constrain_single_or_list(constraints, column, value, convert=lambda x: x):
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return constraints
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def constraints_to_sql(constraints, joiner=' AND ', prepend_key=''):
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sql, values = [], {}
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for key, constraint in constraints.items():
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tag = '0'
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if '#' in key:
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key, tag = key[:key.index('#')], key[key.index('#')+1:]
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col, op, key = key, '=', key.replace('.', '_')
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if not key:
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sql.append(constraint)
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continue
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if key.startswith('$$'):
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col, key = col[2:], key[1:]
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elif key.startswith('$'):
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values[key] = constraint
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continue
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if key.endswith('__not'):
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col, op = col[:-len('__not')], '!='
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elif key.endswith('__is_null'):
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col = col[:-len('__is_null')]
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sql.append(f'{col} IS NULL')
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continue
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if key.endswith('__is_not_null'):
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col = col[:-len('__is_not_null')]
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sql.append(f'{col} IS NOT NULL')
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continue
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if key.endswith('__lt'):
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col, op = col[:-len('__lt')], '<'
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elif key.endswith('__lte'):
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col, op = col[:-len('__lte')], '<='
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elif key.endswith('__gt'):
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col, op = col[:-len('__gt')], '>'
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elif key.endswith('__gte'):
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col, op = col[:-len('__gte')], '>='
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elif key.endswith('__like'):
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col, op = col[:-len('__like')], 'LIKE'
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elif key.endswith('__not_like'):
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col, op = col[:-len('__not_like')], 'NOT LIKE'
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elif key.endswith('__in') or key.endswith('__not_in'):
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if key.endswith('__in'):
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col, op, one_val_op = col[:-len('__in')], 'IN', '='
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else:
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col, op, one_val_op = col[:-len('__not_in')], 'NOT IN', '!='
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if constraint:
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if isinstance(constraint, (list, set, tuple)):
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if len(constraint) == 1:
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values[f'{key}{tag}'] = next(iter(constraint))
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sql.append(f'{col} {one_val_op} :{key}{tag}')
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else:
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keys = []
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for i, val in enumerate(constraint):
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keys.append(f':{key}{tag}_{i}')
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values[f'{key}{tag}_{i}'] = val
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sql.append(f'{col} {op} ({", ".join(keys)})')
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elif isinstance(constraint, str):
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sql.append(f'{col} {op} ({constraint})')
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else:
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raise ValueError(f"{col} requires a list, set or string as constraint value.")
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continue
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elif key.endswith('__any') or key.endswith('__or'):
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where, subvalues = constraints_to_sql(constraint, ' OR ', key+tag+'_')
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sql.append(f'({where})')
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values.update(subvalues)
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continue
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if key.endswith('__and'):
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where, subvalues = constraints_to_sql(constraint, ' AND ', key+tag+'_')
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sql.append(f'({where})')
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values.update(subvalues)
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continue
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sql.append(f'{col} {op} :{prepend_key}{key}{tag}')
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values[prepend_key+key+tag] = constraint
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return joiner.join(sql) if sql else '', values
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def query(select, **constraints) -> Tuple[str, Dict[str, Any]]:
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sql = [select]
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limit = constraints.pop('limit', None)
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offset = constraints.pop('offset', None)
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order_by = constraints.pop('order_by', None)
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group_by = constraints.pop('group_by', None)
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accounts = constraints.pop('accounts', [])
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if accounts:
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constraints['account__in'] = [a.public_key.address for a in accounts]
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where, values = constraints_to_sql(constraints)
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if where:
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sql.append('WHERE')
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sql.append(where)
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if group_by is not None:
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sql.append(f'GROUP BY {group_by}')
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if order_by:
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sql.append('ORDER BY')
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if isinstance(order_by, str):
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sql.append(order_by)
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elif isinstance(order_by, list):
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sql.append(', '.join(order_by))
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else:
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raise ValueError("order_by must be string or list")
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if limit is not None:
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sql.append(f'LIMIT {limit}')
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if offset is not None:
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sql.append(f'OFFSET {offset}')
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return ' '.join(sql), values
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def in_account(accounts: Union[List[PubKey], PubKey]):
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if isinstance(accounts, list):
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if len(accounts) > 1:
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@ -185,38 +70,38 @@ def in_account(accounts: Union[List[PubKey], PubKey]):
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return AccountAddress.c.account == accounts.public_key.address
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def query2(table, select: Select, **constraints) -> Select:
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def query2(table, s: Select, **constraints) -> Select:
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limit = constraints.pop('limit', None)
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if limit is not None:
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select = select.limit(limit)
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s = s.limit(limit)
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offset = constraints.pop('offset', None)
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if offset is not None:
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select = select.offset(offset)
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s = s.offset(offset)
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order_by = constraints.pop('order_by', None)
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if order_by:
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if isinstance(order_by, str):
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select = select.order_by(text(order_by))
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s = s.order_by(text(order_by))
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elif isinstance(order_by, list):
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select = select.order_by(text(', '.join(order_by)))
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s = s.order_by(text(', '.join(order_by)))
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else:
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raise ValueError("order_by must be string or list")
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group_by = constraints.pop('group_by', None)
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if group_by is not None:
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select = select.group_by(text(group_by))
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s = s.group_by(text(group_by))
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accounts = constraints.pop('accounts', [])
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if accounts:
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select.append_whereclause(in_account(accounts))
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s = s.where(in_account(accounts))
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if constraints:
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select.append_whereclause(
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s = s.where(
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constraints_to_clause2(table, constraints)
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)
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return select
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return s
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def constraints_to_clause2(tables, constraints):
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@ -287,21 +172,19 @@ class Database:
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self.engine = None
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self.db: Optional[sqlalchemy.engine.Connection] = None
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async def execute_fetchall(self, sql, params=None) -> List[dict]:
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def foo():
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def sync_execute_fetchall(self, sql, params=None):
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if params:
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result = self.db.execute(sql, params)
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else:
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result = self.db.execute(sql)
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if result.returns_rows:
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return [dict(r) for r in result.fetchall()]
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else:
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try:
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self.db.commit()
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except:
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pass
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return [dict(r._mapping) for r in result.fetchall()]
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return []
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return await asyncio.get_event_loop().run_in_executor(self.executor, foo)
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async def execute_fetchall(self, sql, params=None) -> List[dict]:
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return await asyncio.get_event_loop().run_in_executor(
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self.executor, self.sync_execute_fetchall, sql, params
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)
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def sync_executemany(self, sql, parameters):
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self.db.execute(sql, parameters)
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@ -316,7 +199,7 @@ class Database:
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self.engine = sqlalchemy.create_engine(self.url)
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self.db = self.engine.connect()
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if self.SCHEMA_VERSION:
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if self.engine.has_table('version'):
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if inspect(self.engine).has_table('version'):
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version = self.db.execute(Version.select().limit(1)).fetchone()
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if version and version.version == self.SCHEMA_VERSION:
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return
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@ -478,15 +361,15 @@ class Database:
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return True
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async def select_transactions(self, cols, accounts=None, **constraints):
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s: Select = select(cols).select_from(TX)
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s: Select = select(*cols).select_from(TX)
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if not {'tx_hash', 'tx_hash__in'}.intersection(constraints):
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assert accounts, "'accounts' argument required when no 'tx_hash' constraint is present"
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where = in_account(accounts)
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tx_hashes = union(
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select([TXO.c.tx_hash], where, TXO.join(AccountAddress, TXO.c.address == AccountAddress.c.address)),
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select([TXI.c.tx_hash], where, TXI.join(AccountAddress, TXI.c.address == AccountAddress.c.address))
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select(TXO.c.tx_hash).select_from(TXO.join(AccountAddress)).where(where),
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select(TXI.c.tx_hash).select_from(TXI.join(AccountAddress)).where(where)
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)
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s.append_whereclause(TX.c.tx_hash.in_(tx_hashes))
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s = s.where(TX.c.tx_hash.in_(tx_hashes))
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return await self.execute_fetchall(query2([TX], s, **constraints))
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TXO_NOT_MINE = Output(None, None, is_my_output=False)
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@ -577,83 +460,53 @@ class Database:
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is_my_input_or_output=None, exclude_internal_transfers=False,
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include_is_spent=False, include_is_my_input=False,
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is_spent=None, spent=None, **constraints):
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s: Select = select(cols)
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s: Select = select(*cols)
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if accounts:
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#account_in_sql, values = constraints_to_sql({
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# '$$account__in': [a.public_key.address for a in accounts]
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#})
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my_addresses = select([AccountAddress.c.address]).where(in_account(accounts))
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#f"SELECT address FROM account_address WHERE {account_in_sql}"
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my_addresses = select(AccountAddress.c.address).where(in_account(accounts))
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if is_my_input_or_output:
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include_is_my_input = True
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s.append_whereclause(
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s = s.where(
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TXO.c.address.in_(my_addresses) | (
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(TXI.c.address != None) &
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(TXI.c.address.in_(my_addresses))
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)
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)
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#constraints['received_or_sent__or'] = {
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# 'txo.address__in': my_addresses,
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# 'sent__and': {
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# 'txi.address__is_not_null': True,
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# 'txi.address__in': my_addresses
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# }
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#}
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else:
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if is_my_output:
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s.append_whereclause(TXO.c.address.in_(my_addresses))
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#constraints['txo.address__in'] = my_addresses
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s = s.where(TXO.c.address.in_(my_addresses))
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elif is_my_output is False:
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s.append_whereclause(TXO.c.address.notin_(my_addresses))
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#constraints['txo.address__not_in'] = my_addresses
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s = s.where(TXO.c.address.notin_(my_addresses))
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if is_my_input:
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include_is_my_input = True
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s.append_whereclause(
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s = s.where(
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(TXI.c.address != None) &
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(TXI.c.address.in_(my_addresses))
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)
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#constraints['txi.address__is_not_null'] = True
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#constraints['txi.address__in'] = my_addresses
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elif is_my_input is False:
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include_is_my_input = True
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s.append_whereclause(
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s = s.where(
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(TXI.c.address == None) |
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(TXI.c.address.notin_(my_addresses))
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)
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#constraints['is_my_input_false__or'] = {
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# 'txi.address__is_null': True,
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# 'txi.address__not_in': my_addresses
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#}
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if exclude_internal_transfers:
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include_is_my_input = True
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s.append_whereclause(
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s = s.where(
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(TXO.c.txo_type != TXO_TYPES['other']) |
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(TXI.c.address == None) |
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(TXI.c.address.notin_(my_addresses))
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)
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#constraints['exclude_internal_payments__or'] = {
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# 'txo.txo_type__not': TXO_TYPES['other'],
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# 'txi.address__is_null': True,
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# 'txi.address__not_in': my_addresses
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#}
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joins = TXO.join(TX)
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if spent is None:
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spent = TXI.alias('spent')
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#sql = [f"SELECT {cols} FROM txo JOIN tx ON (tx.tx_hash=txo.tx_hash)"]
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if is_spent:
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s.append_whereclause(spent.c.txo_hash != None)
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#constraints['spent.txo_hash__is_not_null'] = True
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s = s.where(spent.c.txo_hash != None)
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elif is_spent is False:
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s.append_whereclause((spent.c.txo_hash == None) & (TXO.c.is_reserved == False))
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#constraints['is_reserved'] = False
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#constraints['spent.txo_hash__is_null'] = True
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s = s.where((spent.c.txo_hash == None) & (TXO.c.is_reserved == False))
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if include_is_spent or is_spent is not None:
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joins = joins.join(spent, spent.c.txo_hash == TXO.c.txo_hash, isouter=True)
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#sql.append("LEFT JOIN txi AS spent ON (spent.txo_hash=txo.txo_hash)")
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if include_is_my_input:
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joins = joins.join(TXI, (TXI.c.position == 0) & (TXI.c.tx_hash == TXO.c.tx_hash), isouter=True)
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#sql.append("LEFT JOIN txi ON (txi.position=0 AND txi.tx_hash=txo.tx_hash)")
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s.append_from(joins)
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s = s.select_from(joins)
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return await self.execute_fetchall(query2([TXO, TX], s, **constraints))
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async def get_txos(self, wallet=None, no_tx=False, **constraints):
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@ -669,7 +522,7 @@ class Database:
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my_accounts = None
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if wallet is not None:
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my_accounts = select([AccountAddress.c.address], in_account(wallet.accounts))
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my_accounts = select(AccountAddress.c.address).where(in_account(wallet.accounts))
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if include_is_my_output and my_accounts is not None:
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if constraints.get('is_my_output', None) in (True, False):
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@ -692,21 +545,15 @@ class Database:
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if include_received_tips:
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support = TXO.alias('support')
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select_columns.append(select(
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[func.coalesce(func.sum(support.c.amount), 0)],
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select_columns.append(
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select(func.coalesce(func.sum(support.c.amount), 0))
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.select_from(support).where(
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(support.c.claim_hash == TXO.c.claim_hash) &
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(support.c.txo_type == TXO_TYPES['support']) &
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(support.c.address.in_(my_accounts)) &
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(support.c.txo_hash.notin_(select([TXI.c.txo_hash]))),
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support
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).label('received_tips'))
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#select_columns.append(f"""(
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#SELECT COALESCE(SUM(support.amount), 0) FROM txo AS support WHERE
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# support.claim_hash = txo.claim_hash AND
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# support.txo_type = {TXO_TYPES['support']} AND
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# support.address IN (SELECT address FROM account_address WHERE {my_accounts_sql}) AND
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# support.txo_hash NOT IN (SELECT txo_hash FROM txi)
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#) AS received_tips""")
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(support.c.txo_hash.notin_(select(TXI.c.txo_hash)))
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).label('received_tips')
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)
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if 'order_by' not in constraints or constraints['order_by'] == 'height':
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constraints['order_by'] = [
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|
|
@ -836,7 +683,7 @@ class Database:
|
|||
async def select_addresses(self, cols, **constraints):
|
||||
return await self.execute_fetchall(query2(
|
||||
[AccountAddress, PubkeyAddress],
|
||||
select(cols).select_from(PubkeyAddress.join(AccountAddress)),
|
||||
select(*cols).select_from(PubkeyAddress.join(AccountAddress)),
|
||||
**constraints
|
||||
))
|
||||
|
||||
|
|
@ -905,9 +752,8 @@ class Database:
|
|||
assert accounts, "'accounts' argument required to find purchases"
|
||||
if not {'purchased_claim_hash', 'purchased_claim_hash__in'}.intersection(constraints):
|
||||
constraints['purchased_claim_hash__is_not_null'] = True
|
||||
constraints['tx_hash__in'] = select(
|
||||
[TXI.c.tx_hash], in_account(accounts),
|
||||
TXI.join(AccountAddress, TXI.c.address == AccountAddress.c.address)
|
||||
constraints['tx_hash__in'] = (
|
||||
select(TXI.c.tx_hash).select_from(TXI.join(AccountAddress)).where(in_account(accounts))
|
||||
)
|
||||
|
||||
async def get_purchases(self, **constraints):
|
||||
|
|
@ -988,10 +834,10 @@ class Database:
|
|||
|
||||
async def release_all_outputs(self, account):
|
||||
await self.execute_fetchall(
|
||||
"UPDATE txo SET is_reserved = 0 WHERE"
|
||||
" is_reserved = 1 AND txo.address IN ("
|
||||
" SELECT address from account_address WHERE account = ?"
|
||||
" )", (account.public_key.address, )
|
||||
TXO.update().values(is_reserved=False).where(
|
||||
(TXO.c.is_reserved == True) &
|
||||
(TXO.c.address.in_(select(AccountAddress.c.address).where(in_account(account))))
|
||||
)
|
||||
)
|
||||
|
||||
def get_supports_summary(self, **constraints):
|
||||
|
|
|
|||
|
|
@ -1,6 +1,8 @@
|
|||
# pylint: skip-file
|
||||
|
||||
from sqlalchemy import (
|
||||
MetaData, Table, Column, ForeignKey,
|
||||
Binary, Text, SmallInteger, Integer, Boolean
|
||||
BINARY, TEXT, SMALLINT, INTEGER, BOOLEAN
|
||||
)
|
||||
|
||||
|
||||
|
|
@ -9,74 +11,74 @@ metadata = MetaData()
|
|||
|
||||
Version = Table(
|
||||
'version', metadata,
|
||||
Column('version', Text, primary_key=True),
|
||||
Column('version', TEXT, primary_key=True),
|
||||
)
|
||||
|
||||
|
||||
PubkeyAddress = Table(
|
||||
'pubkey_address', metadata,
|
||||
Column('address', Text, primary_key=True),
|
||||
Column('history', Text, nullable=True),
|
||||
Column('used_times', Integer, server_default='0'),
|
||||
Column('address', TEXT, primary_key=True),
|
||||
Column('history', TEXT, nullable=True),
|
||||
Column('used_times', INTEGER, server_default='0'),
|
||||
)
|
||||
|
||||
|
||||
AccountAddress = Table(
|
||||
'account_address', metadata,
|
||||
Column('account', Text, primary_key=True),
|
||||
Column('address', Text, ForeignKey(PubkeyAddress.columns.address), primary_key=True),
|
||||
Column('chain', Integer),
|
||||
Column('pubkey', Binary),
|
||||
Column('chain_code', Binary),
|
||||
Column('n', Integer),
|
||||
Column('depth', Integer),
|
||||
Column('account', TEXT, primary_key=True),
|
||||
Column('address', TEXT, ForeignKey(PubkeyAddress.columns.address), primary_key=True),
|
||||
Column('chain', INTEGER),
|
||||
Column('pubkey', BINARY),
|
||||
Column('chain_code', BINARY),
|
||||
Column('n', INTEGER),
|
||||
Column('depth', INTEGER),
|
||||
)
|
||||
|
||||
|
||||
Block = Table(
|
||||
'block', metadata,
|
||||
Column('block_hash', Binary, primary_key=True),
|
||||
Column('previous_hash', Binary),
|
||||
Column('file_number', SmallInteger),
|
||||
Column('height', Integer),
|
||||
Column('block_hash', BINARY, primary_key=True),
|
||||
Column('previous_hash', BINARY),
|
||||
Column('file_number', SMALLINT),
|
||||
Column('height', INTEGER),
|
||||
)
|
||||
|
||||
|
||||
TX = Table(
|
||||
'tx', metadata,
|
||||
Column('block_hash', Binary, nullable=True),
|
||||
Column('tx_hash', Binary, primary_key=True),
|
||||
Column('raw', Binary),
|
||||
Column('height', Integer),
|
||||
Column('position', SmallInteger),
|
||||
Column('is_verified', Boolean, server_default='FALSE'),
|
||||
Column('purchased_claim_hash', Binary, nullable=True),
|
||||
Column('day', Integer, nullable=True),
|
||||
Column('block_hash', BINARY, nullable=True),
|
||||
Column('tx_hash', BINARY, primary_key=True),
|
||||
Column('raw', BINARY),
|
||||
Column('height', INTEGER),
|
||||
Column('position', SMALLINT),
|
||||
Column('is_verified', BOOLEAN, server_default='FALSE'),
|
||||
Column('purchased_claim_hash', BINARY, nullable=True),
|
||||
Column('day', INTEGER, nullable=True),
|
||||
)
|
||||
|
||||
|
||||
TXO = Table(
|
||||
'txo', metadata,
|
||||
Column('tx_hash', Binary, ForeignKey(TX.columns.tx_hash)),
|
||||
Column('txo_hash', Binary, primary_key=True),
|
||||
Column('address', Text),
|
||||
Column('position', Integer),
|
||||
Column('amount', Integer),
|
||||
Column('script', Binary),
|
||||
Column('is_reserved', Boolean, server_default='0'),
|
||||
Column('txo_type', Integer, server_default='0'),
|
||||
Column('claim_id', Text, nullable=True),
|
||||
Column('claim_hash', Binary, nullable=True),
|
||||
Column('claim_name', Text, nullable=True),
|
||||
Column('channel_hash', Binary, nullable=True),
|
||||
Column('reposted_claim_hash', Binary, nullable=True),
|
||||
Column('tx_hash', BINARY, ForeignKey(TX.columns.tx_hash)),
|
||||
Column('txo_hash', BINARY, primary_key=True),
|
||||
Column('address', TEXT, ForeignKey(AccountAddress.columns.address)),
|
||||
Column('position', INTEGER),
|
||||
Column('amount', INTEGER),
|
||||
Column('script', BINARY),
|
||||
Column('is_reserved', BOOLEAN, server_default='0'),
|
||||
Column('txo_type', INTEGER, server_default='0'),
|
||||
Column('claim_id', TEXT, nullable=True),
|
||||
Column('claim_hash', BINARY, nullable=True),
|
||||
Column('claim_name', TEXT, nullable=True),
|
||||
Column('channel_hash', BINARY, nullable=True),
|
||||
Column('reposted_claim_hash', BINARY, nullable=True),
|
||||
)
|
||||
|
||||
|
||||
TXI = Table(
|
||||
'txi', metadata,
|
||||
Column('tx_hash', Binary, ForeignKey(TX.columns.tx_hash)),
|
||||
Column('txo_hash', Binary, ForeignKey(TXO.columns.txo_hash), primary_key=True),
|
||||
Column('address', Text),
|
||||
Column('position', Integer),
|
||||
Column('tx_hash', BINARY, ForeignKey(TX.columns.tx_hash)),
|
||||
Column('txo_hash', BINARY, ForeignKey(TXO.columns.txo_hash), primary_key=True),
|
||||
Column('address', TEXT, ForeignKey(AccountAddress.columns.address)),
|
||||
Column('position', INTEGER),
|
||||
)
|
||||
|
|
|
|||
2
setup.py
2
setup.py
|
|
@ -50,7 +50,7 @@ setup(
|
|||
'attrs==18.2.0',
|
||||
'pylru==1.1.0',
|
||||
'pyzmq==18.1.1',
|
||||
'sqlalchemy',
|
||||
'sqlalchemy @ git+https://github.com/sqlalchemy/sqlalchemy.git',
|
||||
],
|
||||
classifiers=[
|
||||
'Framework :: AsyncIO',
|
||||
|
|
|
|||
Loading…
Reference in a new issue