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indigo_5_documentation:variable_class [2012/01/05 22:03]
jay [Class Methods] 		indigo_5_documentation:variable_class [2019/01/26 00:10] (current)
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 +====== Variables ======
  
 +The variable class represents an Indigo variable.
 +
 +==== Class Properties ====
 +
 +^Property ^  Type  ^Description ^
 +|//''​id''//​| ​ integer ​ |the unique id of the variable, assigned on creation by IndigoServer|
 +|//''​folderId''//​| ​ integer ​ |the unique id of the folder this variable is in (0 if it's not in a folder) - use //''​moveToFolder()''//​ method to change|
 +|//''​name''//​| ​ string ​ |the name of the variable - no two variable can have the same name|
 +|//''​readOnly''//​| ​ string ​ |is the variable read only - currently only the //''​isDaylight''//​ variable is read only|
 +|//''​remoteDisplay''//​| ​ boolean ​ |should this variable be displayed in remote clients (IWS, Indigo Touch, etc)|
 +|//''​value''//​| ​ string ​ |the value of the variable|
 +
 +==== Class Method ====
 +
 +The Variable class has a special method, ''​**getValue(TYPE,​ default=VALUE)**'',​ that you can call which will retrieve the variable value as the specified Python class. There are a couple of advantages to using this method: first, it won't throw an exception but will always return a value; second, the Indigo server will do the conversion in the exact same way that it does type conversions when using variables in triggers and conditions. You can also optionally specify a default value if the value can't be successfully converted into the specified type. Here's a list of the valid types you can specify and what the default is if not specified:
 +
 +^  Type Literal ​ ^  Type Returned ​ ^Default ^
 +|  bool  |  Boolean ​ |**''​True''​** will be returned if the value is one of these: "​true",​ "​on",​ "​yes",​ and "​1"​. ''​**False**''​ will be returned if the value is one of these: "​false",​ "​off",​ "​no",​ and "​0"​. If no default value is specified and the value can't be successfully converted, the method will return False. ​ |
 +|  int  |  Integer ​ |An integer object will be returned if the value is an integer number or a float/​decimal. In the latter case, the number will be rounded to the nearest integer. If no default value is specified and the value can't be converted, the method will return 0 |
 +|  float  |  Float  |A float object will be returned if the value is a float/​decimal or an integer. If no default value is specified and the value can't be converted, the method will return 0.0 |
 +
 +Remember that accessing the ''​**value**''​ property of a variable object (''//​var.value//''​) will return a string object so you don't need a conversion for that.
 +
 +=== Class Method Examples ===
 +<​code>#​ Get a variable
 +var = indigo.variables[123456]
 +
 +# Getting the boolean value
 +intValue = var.getValue(bool) ​  # False if it can't be converted
 +intValue = var.getValue(int,​ default=True) # True if it can't be converted
 +
 +# Getting the integer value
 +intValue = var.getValue(int) ​  # 0 if it can't be converted
 +intValue = var.getValue(int,​ default=10) # 10 if it can't be converted
 +
 +# Getting the float value
 +intValue = var.getValue(float) ​  # 0 if it can't be converted
 +intValue = var.getValue(float,​ default=98.6) # 98.6 if it can't be converted
 +</​code>​
 +==== Commands (indigo.variable.*) ====
 +
 +=== Create ===
 +
 +Create a variable. This method returns a **copy** of the newly created variable.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.create("​VariableName",​ value="​Var Value",​ folder=843920)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|//''​folder''//​| ​ No  |  integer ​ |id or instance of the folder in which to put the newly created device - defaults to 0 (no folder)|
 +|//''​name''//​| ​ Yes  |  string ​ |the name of the variable|
 +|//''​value''//​| ​ No  |  string ​ |the value of the variable|
 +
 +=== Delete ===
 +
 +Delete the specified folder.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.delete(123)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|direct parameter| ​ Yes  |  integer ​ |id or instance of the variable to delete|
 +
 +=== Duplicate ===
 +
 +Duplicate the specified variable. This method returns a copy of the new variable.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.duplicate(123,​ duplicateName="​NewName"​)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|direct parameter| ​ Yes  |  integer ​ |id or instance of the variable to duplicate|
 +|//''​duplicateName''//​| ​ No  |  string ​ |name for the newly duplicated variable|
 +
 +=== Move To Folder ===
 +
 +Use this command to move the variable to a different folder.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.moveToFolder(123,​ value=987)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|direct parameter| ​ Yes  |  integer ​ |id or instance of the variable|
 +|//''​value''//​| ​ Yes  |  integer ​ |id or instance of the folder to move the variable to|
 +
 +=== Set Remote Display ===
 +
 +Use this command to set the remote display flag for the folder.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.displayInRemoteUI(123,​ value=True)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|direct parameter| ​ Yes  |  integer ​ |id or instance of the variable|
 +|//''​value''//​| ​ Yes  |  boolean ​ |True to display the variable on remote user interfaces or False to hide it|
 +
 +=== Update Value ===
 +
 +Use this command to set the value of a variable without having to get a local copy first.
 +
 +^  Command Syntax Examples ​ ^
 +|<​code>​indigo.variable.updateValue(123,​ value="​New Value"​)</​code>​|
 +
 +^  Parameters ​ ^^^^
 +^  Parameter ​ ^  Required ​ ^  Type  ^  Description ​ ^
 +|direct parameter| ​ Yes  |  integer ​ |id or instance of the variable|
 +|//''​value''//​| ​ Yes  |  string ​ |the new value for the variable|
 +
 +==== Examples ====
 +
 +^  Python ​ ^  AppleScript ​ ^
 +|<​code>#​ Create a new variable
 +newVar = indigo.variable.create("​fooName",​ "​fooMonster"​)
 +
 +# Updating value via command space function:
 +indigo.variable.updateValue(newVar,​ "​asleep789"​)
 +newVar.refreshFromServer() ​ # refresh needed to update local'​s .value
 +
 +# changing name property
 +newVar.name = "​goodName"​
 +newVar.replaceOnServer()
 +
 +newVar.name = "bad name" ​ # should throw because of space character
 +
 +# changing name and values properties:
 +newVar.name = "​goodName2"​
 +newVar.value = "​searchingForWaldo"​
 +newVar.replaceOnServer()
 +
 +indigo.variable.delete(newVar)
 +
 +# Getting a variable using it's ID
 +someVar = indigo.variables[123]
 +
 +# Getting a variable using it's name
 +someVar = indigo.variables["​MyVarName"​]</​code>​|<​code>​-- Create a new variable
 +set newVar to make new variable with properties {name:"​fooName",​ value:"​fooMonster"​}
 +
 +-- Update value
 +set value of newVar to "​asleep789"​
 +
 +
 +-- Changing name property
 +set name of newVar to "​goodName"​
 +set newVar to variable "​goodName"​ -- when the name changes, you have to get a fresh reference
 +
 +set name of newVar to "bad name" -- should error because of space character
 +
 +-- Changing name and values properties
 +set name of newVar to "​goodName2"​
 +set newVar to variable "​goodName2"​ -- when the name changes, you have to get a fresh reference
 +set value of newVar to "​searchingForWaldo"​
 +
 +delete variable "​goodName2"​
 +
 +# You can't get a variable using it's ID in AppleScript
 +
 +
 +# Getting a variable using it's name
 +set someVar to variable named "​MyVarName"</​code>​|
 

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