Duplicate values are not allowed in form settings.
1. How to set whether duplicates are allowed
You can use the EXIST function to perform a deduplication check on the previously entered data of this field. It has been entered before. Now you cannot submit a form by entering the same field content.
ConfigurationEXIST function
Description of functions:USER
1.1 form setting deduplication function
Path:Form> Click Blank> form verification> Add formula> EXIST()> Save
Form editing page
Form verification configuration formula
Note:Block commit settings when the formula is met
The following figure shows the effect after setting:
Error message
1.2 flow chart set the deduplication function
Path of the old normal process:Flow Chart> Process> Settings> node submission rules> Create> verify rules> EXIST()> two OK> Click return on the node submit rule page> save and publish
Flow chart configure node submission rules
Create a verification rule
You can view the following moving chart teaching settings:
New version of common process path:Flow Chart> edit the inverted triangle next to the flow chart> Process Design> Global Settings> node submission rules> Create> verify rules> EXIST()> confirm> 2 save> finally click save and publish the process. The action diagram is as follows:
2. Try it online
3. FAQ
3.1 Can this cross-duplicate data be verified?
The EXIST() function does not support cross-validation. You can use a remote data source to call the YIDA data acquisition interface and use the value of one component as an input parameter to compare whether another field has data, if any, a tag is returned to the form field, and a custom verification or form verification is used as the judgment field.
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