Struct CampaignRows 

pub struct CampaignRows { /* private fields */ }

The rows of the start_pos_* tables that belong to a campaign.

Implementations

impl CampaignRows

pub fn new( tables: &StartposTables, schema: &Schema, campaign: &str, ) -> Result<Self>

Finds the rows of the start_pos_* tables that belong to a campaign.

Arguments

• tables - Every row the build sees: the game’s and the pack’s.
• schema - Schema with the references between the tables.
• campaign - Campaign key.

Errors

Returns an error if a table lacks a column its definition has.

pub fn belongs( &self, table: &str, value: impl Fn(&str) -> Option<String>, ) -> bool

Returns if a row of a table belongs to the campaign.

Arguments

• table - Table name, without the _tables suffix.
• value - Returns the value of a column of the row, or None if the table has no such column.

pub fn retain(&self, db: &mut DB) -> Result<usize>

Removes the rows of a start_pos_* table that don’t belong to the campaign.

Arguments

• db - The table. Tables that aren’t start_pos_* ones are left as they are.

Returns

The number of rows removed.

Errors

Returns an error if the rows can’t be set back.

Trait Implementations

impl Clone for CampaignRows

fn clone(&self) -> CampaignRows

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CampaignRows

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CampaignRows

fn default() -> CampaignRows

Returns the “default value” for a type.