If

1. Description

It is a conditional component designed to test conditions. It allows you to compare a value and what you expect logically.

The block (Fig.1(1)) is used in space to build the Flow. The settings panel for this component opens (Fig.1(2)) when you click on the block.

Fig.1. If component

1.1. If block

The block consists of the following elements:

1. The name of the component;

2. In branch — receiving (connecting with the previous block) branch;

3. Then branch — execution of the Flow scheme on this branch occurs when the condition specified in the Expression field is met;

4. Else branch — execution of the Flow scheme on this branch occurs when the condition specified in the Expression field is not met;

5. Out branch — the execution of the Flow scheme on this branch occurs after the execution of the scheme on the Then or Else branches. Outgoing (connecting to the next block) branch. 

When hovering over the Out, Else, or Then field, a switch appears. The switch allows this component to be connected to a component that already has a connection.

The presence of an icon indicates that the switch is on, and this component can be connected to a component that already has a connection.

Changing the switch position removes the outgoing branch of this component.

The  button deletes the block from the Flow Schema.

1.2. If settings panel

It consists of the following elements:

1. Expression;

2. Break;

3. Limit;

4. Add description.

1.2.1. Expression

The test condition is entered here.

All variables in Webitel are marked like this — ${ }. The variable name is enclosed in curly braces. The next step is to specify the condition.

For example, it is necessary to check whether the variable out_w is more significant than zero. The field entry will look like this:

${out_w}>0 

If the condition is met, the Then branch is used.

The Else branch is used when the condition is not satisfied.

{
  "if": {
    "expression": "&hour(18-20) && &wday(2-6)",
    "then": [
      {
        "setVar": "time_now=&time_of_day()"
      }
    ]
  }
}

1.2.2. Break

Responsible for the completion of the flow execution.

• — initiates the end of the flow execution after the given component.

• — the switch is in the off position.

1.2.3. Limit

It is intended to determine the maximum number of passes through this component.

The failover branch appears in the edited component when the limit is set .

The failover branch will be used if more passes are passed through the component than entered in the Max field.

Clicking on the Add Limit button adds a Max field and a Delete limit button.

The number of possible passes is indicated in the Max field.

Clicking on the Delete limit button removes the limit and returns the Add limit button.

Fig. 2. Setting a limit

1.2.4. Add description

When you click the Add description button, a Description field and a Delete description button will be added.

The Description field is used to add comments to the component.

Clicking the Delete description button removes the description field and brings back the Add description button.

Fig. 3. Add description