Modeling: User's Guide

Previous: 1.2 About this manual Up: Modeling: User's Guide Next: 2. Entity-Relationship Models

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1 The essentials

• 2. Entity-Relationship Models
  • Introduction
  • 2.1 Sample models used in this manual
    • 2.1.1 Model: AuthorBooks
    • 2.1.2 Model: StoreEmployees
  • 2.2 Concepts
  • 2.3 Full description
    • 2.3.1 Model
    • 2.3.2 Entity
    • 2.3.3 Attribute
    • 2.3.4 Relationship
  • 2.4 PyModels
    • 2.4.1 Organization of this chapter
    • 2.4.2 A sample PyModel
    • 2.4.3 Defaults
    • 2.4.4 Model
    • 2.4.5 Entity
    • 2.4.6 Attribute
    • 2.4.7 Relationship
    • 2.4.8 Association
  • 2.5 XML model
    • 2.5.1 Overview of the xml
    • 2.5.2 Model
    • 2.5.3 Entity
    • 2.5.4 Attribute
    • 2.5.5 Relationship
    • 2.5.6 Full format of an xml-model
  • 2.6 General guidelines and gotchas
    • 2.6.1 Simple models (no inheritance)
    • 2.6.2 Designing relationships
    • 2.6.3 Modeling many-to-many relationships
    • 2.6.4 How to model inheritance
  • 2.7 Tools
    • 2.7.1 The ZModeler
    • 2.7.2 Scripts
  • 2.8 Some References on E.-R. Modelling
• 3. Functionalities for Object Management
  • 3.1 From model to python code
    • 3.1.1 Generating the python code
    • 3.1.2 Building the python package dynamically, at run-time
    • 3.1.3 Static vs. dynamic: what's best?
  • 3.2 The framework's requirements on python code
    • 3.2.1 Package's, modules' and classes' names
    • 3.2.2 Within classes
  • 3.3 Automatic validation of referential and business-logic constraints
    • 3.3.1 Integrity constraints derived from the underlying model
    • 3.3.2 Checking constraints: key by key
    • 3.3.3 Validation.ValidationException: the list of error-codes
    • 3.3.4 Validating an object ``as a whole''
    • 3.3.5 Misc.
• 4. Working with your objects: insert, changes, deletion
  • 4.1 Ensuring unicity of an object
  • 4.2 Inserting an object
  • 4.3 Updating objects
  • 4.4 Deleting an object
  • 4.5 Fetching objects
    • 4.5.1 Principles
    • 4.5.2 Simple fetch
    • 4.5.3 Pattern matching
    • 4.5.4 Equality, comparisons, in and not in
    • 4.5.5 Negating, Con- or disjoining qualifiers
    • 4.5.6 Dotted notation
    • 4.5.7 How much objects will a query fetch?
    • 4.5.8 Fetching and inheritance
    • 4.5.9 The influence of an EditingContext on fetchs
    • 4.5.10 Fetching raw rows
  • 4.6 Saving Changes
  • 4.7 Discarding changes: the destruction process of an EditingContext
    • 4.7.1 Finalizing an EditingContext: breaking reference cycles
    • 4.7.2 Controlling the finalization stage
• 5. Nested EditingContexts
  • 5.1 Bringing transactions to the object world
  • 5.2 Declaring and using a nested EditingContext
  • 5.3 Miscellaneous developer's hints
  • 5.4 Limitations with multiple child EditingContexts
• 6. Integration in an application
  • 6.1 Pure python applications
  • 6.2 Instructions of use in a multi-threaded environment
  • 6.3 Integration within application servers: using the sessioning mechanism
    • 6.3.1 Sharing an EditingContext between sessions
    • 6.3.2 Sessioning
  • 6.4 Zope
    • 6.4.1 Binding the default EC transactions to Zope transactions
  • 6.5 Others

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Modeling: User's Guide

Previous: 1.2 About this manual Up: Modeling: User's Guide Next: 2. Entity-Relationship Models

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Release 0.9, documentation updated on March 4, 2006.

Comments are welcome: Sebastien Bigaret / Modeling Home Page
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