Use variable inside database

I have a 2 tables named covenants and clauses, each covenant belongs to many clauses. but the problem is that there's some variables should be inside some clauses, therefore I have a string inside database column that has a variable or more. some examples:

You should pay $price as soon as possible.
The payment should give to $owner before $date.

What is the best solution to display clauses with correct variables. also the variables comes from an object like this:

$covenant->price
$covenant->owner
$covenant->date

LaryAI

2 years ago

Best Answer

Level 58

One solution could be to use string interpolation to replace the variables in the clauses with their corresponding values from the $covenant object. Here's an example implementation:

// Assuming $covenant is an instance of the Covenant model with the necessary properties

// Retrieve the clauses for the covenant
$clauses = $covenant->clauses;

// Loop through each clause and replace the variables with their values
foreach ($clauses as $clause) {
    // Use preg_replace_callback to replace each variable with its value
    $clause->text = preg_replace_callback('/$(\w+)/', function ($matches) use ($covenant) {
        // Get the variable name (without the $)
        $variableName = $matches[1];

        // Check if the variable exists as a property on the $covenant object
        if (property_exists($covenant, $variableName)) {
            // If it does, return its value
            return $covenant->$variableName;
        } else {
            // If it doesn't, return the original variable string
            return $matches[0];
        }
    }, $clause->text);
}

// Now $clauses contains the updated clauses with the variables replaced with their values

This implementation uses a regular expression to match variables in the clause text (e.g. $price, $owner, $date) and then uses preg_replace_callback to replace each variable with its corresponding value from the $covenant object. If a variable is not found as a property on the object, it is left unchanged.