mimgrating from another repo

example-app/os/db/delete.lua

@@ -0,0 +1,29 @@
+auth_or_die("User unauthorized. Please login")
+local rq = (JSON.decodeString(REQUEST.query.json))
+if(rq ~= nil and rq.table ~= nil) then
+    local model = require("db.model").get(SESSION.iotos_user, rq.table, nil)
+    local ret
+    if model == nil then
+        fail("Cannot get table metadata:"..rq.table)
+    else
+        if(rq.id == nil ) then
+            if(rq.cond) then
+                ret = model:delete(rq.cond)
+                model:close()
+            else
+                model:close()
+                return fail("Unknow element to delete")
+            end
+        else
+            ret = model:deleteByID(rq.id)
+            model:close()
+        end
+        if ret then
+            result(ret)
+        else
+            fail("Querry error or database is locked")
+        end
+    end
+else
+    fail("Unknown database request")
+end

example-app/os/db/get.lua

@@ -0,0 +1,19 @@
+auth_or_die("User unauthorized. Please login")
+local rq = (JSON.decodeString(REQUEST.query.json))
+if(rq ~= nil and rq.table ~= nil) then
+    local model = require("db.model").get(SESSION.iotos_user, rq.table, nil)
+    local ret
+    if model == nil then
+        fail("Cannot get table metadata:"..rq.table)
+    else
+        if(rq.id == nil ) then
+            ret = model:getAll()
+        else
+            ret = model:get(rq.id)
+        end
+        model:close()
+        result(ret)
+    end
+else
+    fail("Unknown database request")
+end

example-app/os/db/model.lua

@@ -0,0 +1,20 @@
+local model = {}
+
+model.get = function(name, tbl, data)
+    local db = DBModel:new{db = name, name=tbl}
+    db:open()
+    if db:available() then return db end
+    if data == nil then return nil end
+    local meta = {}
+    --print(JSON.encode(data))
+    for k,v in pairs(data) do
+        if type(v) == "number" then
+            meta[k] = "NUMERIC"
+        else
+            meta[k] = "TEXT"
+        end
+    end
+    db:createTable(meta)
+    return db
+end
+return model

example-app/os/db/save.lua

@@ -0,0 +1,24 @@
+auth_or_die("User unauthorized. Please login")
+local rq = (JSON.decodeString(REQUEST.query.json))
+if(rq ~= nil and rq.table ~= nil) then
+    local model = require("db.model").get(SESSION.iotos_user,rq.table, rq.data)
+    local ret
+    if model == nil then
+        fail("Cannot get table metadata:"..rq.table)
+    else
+        if(rq.data.id ~= nil ) then
+            rq.data.id = tonumber(rq.data.id)
+            ret = model:update(rq.data)
+        else
+            ret = model:insert(rq.data)
+        end
+        model:close()
+        if ret == true then
+            result(ret)
+        else
+            fail("Cannot modify/update table "..rq.table)
+        end
+    end
+else
+    fail("Unknown database request")
+end

example-app/os/db/select.lua

@@ -0,0 +1,20 @@
+auth_or_die("User unauthorized. Please login")
+local rq = (JSON.decodeString(REQUEST.query.json))
+if(rq ~= nil and rq.table ~= nil) then
+    local model = require("db.model").get(SESSION.iotos_user,rq.table, nil)
+    local ret
+    if model == nil then
+        fail("Cannot get table metadata:"..rq.table)
+    else
+        if(rq.cond == nil ) then
+            model:close()
+            return fail("Unknow condition")
+        else
+            ret = model:find(rq.cond)
+        end
+        model:close()
+        result(ret)
+    end
+else
+    fail("Unknown database request")
+end