Differences

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--- download-csv-js [2022/05/10 12:09] – [Script] emozolyak
+++ download-csv-js [2022/05/12 08:35] – [Button release script] emozolyak
@@ Line 1: / Line 1: @@
-====== Example of graph data download with JS for dashbaord ======
+====== Example of graph data download with JS for dashboard ======
 The standard method of exporting data from graphs to XLS, HTML, CSV files has the resolution of the selected view on the respective graph, not all data - due to performance issues.
@@ Line 14: / Line 14: @@
   -Dictionary element for selecting one of the many graphs you may have. E.g. if you have graphs with IDs of 1, 2, 3... you have to create a dictionary of 1, 2, 3.... and bind it with the register that will be used for the element on the dashboard.
-==== Script ====
+===== Script =====
 Put the following script into the 'Script' tab of the dashboard properties (w/o comments)
 {{ :api:js-csv-dash-script-tab.png?direct&800 |}}
+==== Script text ====
 <code javascript>
@@ Line 142: / Line 144: @@
 }
+</code>
+==== Button release script ====
+Because the dashboard expects the register change be greater than 0, we have to reset this register after each use.
+The following script can do that:
+<code lua>
+BUTTON_REG_ID = 9
+function main (userId)
+    local cur_value = R(BUTTON_REG_ID)
+    if (not resetDemand and cur_value > 0) then
+        resetDemand = true                        -- postpone reset for one scan for JS to detect change
+        return
+    end
+    if (resetDemand) then
+        reset(BUTTON_REG_ID)                     -- now real reset
+        resetDemand = false
+    end
+end
+function reset(reg)
+    local cur_value = R(reg)
+    if cur_value and cur_value ~= 0 then
+        W(reg, 0)
+    end
+end
 </code>