Thomas Peetz
80 lines
2.9 KiB
Python
80 lines
2.9 KiB
Python
import mariadb
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class KontorDB:
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def __init__(self, db_config):
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self.db_conn = mariadb.connect(
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host=db_config['mariadb']['host'],
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port=db_config['mariadb']['port'],
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user=db_config['mariadb']['user'],
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password=db_config['mariadb']['password'],
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database=db_config['mariadb']['database']
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)
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def get_table_id(self, table_name):
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cursor = self.db_conn.cursor()
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cursor.execute("SELECT id, created_date, last_modified_date FROM meta_data_table WHERE table_name=?", (table_name, ))
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row = cursor.fetchone()
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cursor.close()
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return row[0]
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def get_table_names(self) -> list:
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tables_names = []
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cursor = self.db_conn.cursor()
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cursor.execute("SELECT id, table_name from meta_data_table")
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rows = cursor.fetchall()
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for (_, table_name) in rows:
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tables_names.append(table_name)
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cursor.close()
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return tables_names
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def get_column_meta_data(self, table_id):
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cursor = self.db_conn.cursor()
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meta_data = {}
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cursor.execute("SELECT column_name, column_order, column_label FROM meta_data_column WHERE table_id=? AND is_shown is true ORDER bY column_order", (table_id, ))
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rows = cursor.fetchall()
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order = 0
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for (column_name, column_order, column_label) in rows:
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meta_data[order] = { 'column': column_name, 'label': column_label, 'order': column_order}
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order += 1
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cursor.close()
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# print(f"retrieved {len(rows)} columns, set {len(meta_data)} headers")
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return meta_data
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def get_filters(self, table_id):
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cursor = self.db_conn.cursor()
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filters = {}
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cursor.execute("SELECT column_name, filter_label from meta_data_column WHERE table_id=? AND show_filter is true", (table_id, ))
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rows = cursor.fetchall()
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for row in rows:
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filters[row[0]] = {'label': row[1], 'widget': None}
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cursor.close()
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# print(f"retrieved {len(rows)} filters: {filters}")
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return filters
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def get_data(self, table_name: str, columns: dict, where_clause: str) -> list:
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data = []
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cursor = self.db_conn.cursor()
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cursor.execute(self.get_statement(table_name, columns, where_clause))
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rows = cursor.fetchall()
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print(len(rows))
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for row in rows:
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# print(f"KontorDB.get_data: {row}")
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data.append(list(row))
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cursor.close()
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print(f"KontorDB.getData: return {len(data)}")
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return data
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def get_statement(self, table: str, header: dict, where_clause):
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columns = ""
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for index, column in header.items():
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if index > 0:
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columns += ", "
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columns += column['column']
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if len(columns) == 0:
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columns = "*"
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statement = f"SELECT {columns} FROM {table} {where_clause}"
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print(f"{statement=}")
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return statement
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