Handles and updates the fields in a custom form.

Validates the posted fields on an Create/Edit project form.

Merges and retrieves all the ‘form field name’/’meta field name’ pairs identifying the fields that need to be handled on the project form.

Generates a unique post name given a set of parameters.

Retrieves the list of the main location attributes used for location matching

Updates a post ‘guid’.

Retrieves posted terms for a specific taxonomy.

Assigns a list of taxonomy terms to a post.

Retrieves a specific post data field value with an optional default value.

Handles media related post data.