Creating vibrant tables with unique color schemes using Thymeleaf

Question

Creating vibrant tables with unique color schemes using Thymeleaf

Is there a way to create a table with different colors using Thymeleaf? I have a list of events with risk weights represented by integer values. Each column in the HTML table should be colorized based on certain conditions. For example, if the risk is less than 20, it should be green, if the risk is between 20 and 50, it should be yellow, and if the risk is over 50, it should be red. How can I set multiple conditions for one column? The solution I have tried so far doesn't seem to be working.

<td th:text="${data.riskIndex}" th:if="${data.riskIndex &lt; 20 and data.riskIndex &gt;= 0}" class="green"></td>

java html css thymeleaf

Answer 1

Answer №1

In this scenario, my approach would involve utilizing the th:class attribute instead of th:if (or th:classappend if additional classes are shared by every column). Within the th:class, I would make use of a ternary operator to check the condition.

<td th:text="${data.riskIndex}" th:class="${data.riskIndex lt 20} ? 'green' : (${data.riskIndex le 50} ? 'yellow' : 'red')"></td>

Another approach would be to create a utility method that converts the riskIndex to the appropriate color without involving javascript.

For instance, you could create a utility class named DataRepresentationUtils with a method that determines the color based on the index:

package web.utils;

public class DataRepresentationUtils {

    private DataRepresentationUtils() { }

    public static String convertRiskIndexToRGBLiteral(int riskIndex) {

        // logic implementation goes here. Example output: "#00ff00"

    }
}

Then, you can utilize this method within your template like this:

<td th:text="${data.riskIndex}" th:styleappend="'background-color: ' + ${T(web.utils.DataRepresentationUtils).convertRiskIndexToRGBLiteral(data.riskIndex)} + ';'"></td>

Answer 2

In this scenario, my approach would involve utilizing the th:class attribute instead of th:if (or th:classappend if additional classes are shared by every column). Within the th:class, I would make use of a ternary operator to check the condition.

<td th:text="${data.riskIndex}" th:class="${data.riskIndex lt 20} ? 'green' : (${data.riskIndex le 50} ? 'yellow' : 'red')"></td>

Another approach would be to create a utility method that converts the riskIndex to the appropriate color without involving javascript.

For instance, you could create a utility class named DataRepresentationUtils with a method that determines the color based on the index:

package web.utils;

public class DataRepresentationUtils {

    private DataRepresentationUtils() { }

    public static String convertRiskIndexToRGBLiteral(int riskIndex) {

        // logic implementation goes here. Example output: "#00ff00"

    }
}

Then, you can utilize this method within your template like this:

<td th:text="${data.riskIndex}" th:styleappend="'background-color: ' + ${T(web.utils.DataRepresentationUtils).convertRiskIndexToRGBLiteral(data.riskIndex)} + ';'"></td>

Creating vibrant tables with unique color schemes using Thymeleaf

Answer №1

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