Namespace LemonEdge.API.Attributes

Classes

ComplexDefinitionAttribute

Can be marked against an interface to indicate this is a complex type used by LemonEdge and can be used in queries and the web service

DBTrackChangesAttribute

Indicates this property will be tracked, indicating if the value was changed, and what the original value was.

This is available in validations, but only in code executing directly against the database - services, or clients with direct db connections.

DefaultEntityIconAttribute

Specifies the default icon for the system to use whenever displaying this entity in menus, or other ui appropriate contexts

This can be the id of a system image (ImageType) or a custom image ( ImageID)

DefaultValueOnNewAttribute

Indicates this property has a default value that should be initialized whenever a new instance of this item is created

This can be a hard coded value, or a formula that is evaluated at run time

EntityAutoIncrementColumnAttribute

Indicates this property is an integer value that holds a value that should auto-increment by the system only, and is not editable by the user

When a new instance is created this will hold 0, only when the new item is saved the system will transactionally auto-increment its value from the last value.

It will not be changed again by the system, and will not allow user changes either

EntityColorAttribute

The default color to use when displaying this entity in entity structure mappings

EntityDefinitionAttribute

The main attribute for LemonEdge indicating this interface holds a definition of an entity that should be managed by LemonEdge.

This must be marked against an interface, the system will find the associated entity class implementation, or will create one dynamically if one does not exist

The system will automatically handle the back-end work for this entity such as creating database tables, functions/stored procedures, web service controllers, etc

If you change the TableName, ItemName, or SetName then you need to create a EntityDefinitionOldInfoAttribute with the old values so the system knows what to rename in the database

Any entity marked with this will have an EntityDescriptor created for it by the system during runtime that holds the description of everything to do with this entity.

This includes the InterfaceType and EntityType that can be used for interacting with the data held by this type

EntityDefinitionOldInfoAttribute

This marks entities with old tablenames, itemnames or setnames.

These are used to create functions and the table in the database. If they are changed in the EntityDefinitionAttribute attribute, then the old values need to be added to htis attribute so the system knows what to rename

EntityDescriptionAttribute

Provides a user friendly description of the property or field

This description is provided as a tooltip throughout the UI where appropriate

EntityHasPivotAttribute

Indicates this entity contains information held in a sub table that can be pivotted and displayed against this record too.

This will ensure exports, and imports will allow reference to the pivotted values against this entity record too

EntityIncludeInIndexAttribute

Appends the specified columns as ones which should be included in the specified index.

EntityIndexAttribute

Specifies an index to be created on the table for this entity

EntityKeyPropertyAttribute

Specifies that this property forms part of the key properties for this entity

Multiple properties can be marked with this attribute to indicate their combination forms the unique key for this entity

Keys are used for importing/exporting and other methods of referring to this entity. The system still holds a globally unique id for each entity regardless - see ID

EntityLinkToAnyParentRelationshipAttribute

Indicates this property holds a relationship link to an id of any entity in the system. There should also be another property holding the type of entity the id links to marked with IsEntityTypeLink

A relationship to the id of a specific entity is marked with EntityRelationshipAttribute

EntityLinkToAnyParentRelationshipModifierAttribute

Modifies a EntityLinkToAnyParentRelationshipAttribute relationship with properties specific to the relationship to this entity

EntityPropertyAttribute

Defines how this property should be handled when maintained as a column in sql server

EntityRelationshipAttribute

Indicates this property holds a relationship that points to another entity in the system

EntitySelfRelationshipAttribute

Indicates this is a relationship that references the same entity

EntitySequenceAttribute

Indicates this property holds the sequence order of the item within the set of items in the collection.

This is automatically used by the UI in grids to have move up/down buttons and take care of updating all properties as items are moved through a sequence

EnumValueAttribute

The value to use for an enum value when selected in algorithms, such as IAnswer.SelectedAnswer

FormulaDefaultValueOnNewAttribute

Indicates this property has a formula that when evaluated provides a default value that should be initialized whenever a new instance of this item is created

HardCodedDefaultValueOnImportAttribute

Indicates this property has a hard coded default value that should be initialized whenever a new instance of this item is created, BUT ONLY when importing.

HardCodedDefaultValueOnNewAttribute

Indicates this property has a hard coded default value that should be initialized whenever a new instance of this item is created

IgnorePropertyInfoAttribute

Can be marked against a property to indicate that it is a simple DTO class that isn't mapped to the database. This prevents the EntityDescriptorFactory from trying to generate Entity Relationships and ColumnDescriptors. Useful for properties that are populated dynamically rather than fetched from the DB.

PivotTableInfo

Holds information about entities that hold pivot information for other entities

PropRelationshipAttribute

The base attribute used for marking that a given property holds a relationship to another entity in the system

Includes attributes about the relationship such as cascade delete options and others

ReplicatedEntityRelationshipAttribute

If this is a descriptor marked to be replicated for each descriptor ( UseForReplicatingDescriptorType), then this relationship indicates this property holds a link to the entity type being replicated.

For example the permissions class uses this to say the IPermission.EntityID property holds a relationshipt to the descriptor it is replicated from.

WebServiceFunctionsAttribute

Marker attribute to create service controller for custom functions.

Enums

EntityID

All system entities in LemonEdge have a hardcoded unique global ID that corresponds to this enum.

The short enum value is translated to a guid using ToShortGuid<T>(T)

Wherever an EntityID is used by LemonEdge, you can also use an actual unique global Guid value. When creating entities in your own code you can keep the IDs as global Guid values for reference

IndexOrder

The order a column should be sorted in for an index