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# Factorio Runtime Docs Version 2.0.77

# LuaLogisticSections - Runtime Docs

## Class LuaLogisticSections

Logistic sections of an entity.

## Members

add_section(group?) | → LuaLogisticSection? | Adds a new logistic section if possible.
Adds a new logistic section if possible.
remove_section(section_index) | → boolean | Removes the given logistic section if possible. [...]
Removes the given logistic section if possible. [...]
get_section(section_index) | → LuaLogisticSection? | Gets section on the selected index, if it exists.
Gets section on the selected index, if it exists.
sections | :: R array[LuaLogisticSection] | All logistic sections of this entity.
All logistic sections of this entity.
sections_count | :: R uint32 | Amount of logistic sections this entity has.
Amount of logistic sections this entity has.
valid | :: R boolean | Is this object valid? [...]
Is this object valid? [...]
object_name | :: R string | The class name of this object. [...]
The class name of this object. [...]

## Methods

### add_section(group?) → LuaLogisticSection?

Adds a new logistic section if possible.

#### Parameters

group | :: string? | The group to assign this section to.
The group to assign this section to.

#### Return values

→ LuaLogisticSection? | Logistic section if added.

### remove_section(section_index) → boolean

Removes the given logistic section if possible. Removal may fail if the section index is out of range or the section is not manual.

#### Parameters

section_index | :: uint32 | Index of the section.
Index of the section.

#### Return values

→ boolean | Whether section was removed.

### get_section(section_index) → LuaLogisticSection?

Gets section on the selected index, if it exists.

#### Parameters

section_index | :: uint32 | Index of the section.
Index of the section.

## Attributes

### sections :: Read array[LuaLogisticSection]

All logistic sections of this entity.

### sections_count :: Read uint32

Amount of logistic sections this entity has.

### valid :: Read boolean

Is this object valid? This Lua object holds a reference to an object within the game engine. It is possible that the game-engine object is removed whilst a mod still holds the corresponding Lua object. If that happens, the object becomes invalid, i.e. this attribute will be `false`. Mods are advised to check for object validity if any change to the game state might have occurred between the creation of the Lua object and its access.

### object_name :: Read string

The class name of this object. Available even when `valid` is false. For LuaStruct objects it may also be suffixed with a dotted path to a member of the struct.

Class used in

- LuaEntity::get_logistic_sections()