Creator

Introduction and Scope

This page provides links to information about ZODB and also provides code snippets.

Creating Databases

When a program wants to use the ZODB it has to establish a connection, like any other database. For the ZODB we need 3 different parts: a storage, a database and finally a connection:

import ZODB, ZODB.FileStorage
storage = ZODB.FileStorage.FileStorage('mydata.fs')
db = ZODB.DB(storage)
connection = db.open()
root = connection.root

# CLI Sandbox
import sys
import ZODB, ZODB.FileStorage

project_dirs = [
  "/opt/prod/db4e/src/Infrastructure",
  "/opt/prod/db4e/src/Mining",
  "/opt/prod/db4e/src/Reports"
]
for project_dir in project_dirs:
  sys.path.append(project_dir)

from Db4eTree.Db4eTree import Db4eTree

zodb_file = 'db4e_db'
storage = ZODB.FileStorage.FileStorage(zodb_file)
db = ZODB.DB(storage)
connection = db.open()
root = connection.root
# Define a simple class for demonstration purposes
class TestObject:
    def __init__(self, value):
        self.value = value

    def __repr__(self):
        return f"TestObject(value={self.value})"

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