public static void CheckAttribute(DataServiceRestClient client, EntityDto entity, ushort key, string description,
AttributeTypeDto type)
{
var configuration = client.GetConfiguration().Result;
var definition = configuration.GetDefinition(key);
if (definition == null)
{
client.CreateAttributeDefinition(entity, new AttributeDefinitionDto
{
Key = key,
Description = description,
Type = type
});
}
else if (configuration.GetTypeForKey(key) != entity || definition.Description != description ||
(definition as AttributeDefinitionDto)?.Type != type)
{
//Don't do this, in case the PiWeb database is already in use. Changing the configuration will cause data-loss!!!
client.UpdateAttributeDefinitions(entity, new AbstractAttributeDefinitionDto[]
{
new AttributeDefinitionDto
{
Key = key,
Description = description,
Type = type
}
});
}
}
/// <summary>
/// Initializes a new instance of the <see cref="AttributeDefinitionDto"/> class.
/// </summary>
/// <param name="key">The unique key for this attribute</param>
/// <param name="description">The attribute description</param>
/// <param name="type">The datatype of this attribute</param>
/// <param name="length">The length of a string attribute (only valid if <code>type</code> is <code>AttributeType.AlphaNumeric</code></param>
/// <param name="queryEfficient"><code>true</code> if this attribute is efficient for filtering operations</param>
public AttributeDefinitionDto(ushort key, string description, AttributeTypeDto type, ushort?length, bool queryEfficient = false)
: base(key, description, queryEfficient)
{
Type = type;
Length = Type == AttributeTypeDto.AlphaNumeric ? length : null;
}
