php - Complex MySQL query, how to select all ingredients and get the quantity needed for orders -


i have query want list out ingredients on hand, , amount of ingredients needed orders outstanding. query works fine if ingredient being used in order, if has not been used in order yet not show ingredient in query.

is there way structure query shows ingredients , quantity on hand, amount needed outstanding orders?

suggestions appreciated. in advance. (*0.00220462 converts grams pounds)

select products.units, (orders_items.quantity - orders_items.quantity_baked)                                 num_loaved_needed, inventory.title, inventory.id, round(inventory.quantity * 0.00220462,2)   pounds, round(sum( (dough_recipes.grams / doughs.yield) * products.weight * (orders_items.quantity   - orders_items.quantity_baked) * 0.00220462 ),2) amount_needed_for_all_current_orders           orders_items            left join products on products.id = orders_items.product_id           left join doughs on doughs.id = products.dough_id           left join dough_recipes on dough_recipes.dough_id = products.dough_id           left join inventory on inventory.id = dough_recipes.inventory_id           group inventory.id           order title asc


Comments

Post a Comment

Popular posts from this blog

javascript - RequestAnimationFrame not working when exiting fullscreen switching space on Safari -

request animation frame stops working when exiting fullscreen clicking on original space's safari window. fine if fullscreen mode canceled escape key or calling cancelfullscreen(). steps reproduce: open https://dl.dropboxusercontent.com/u/769042/prezi/safari-fullscreen.html click "draw raf", kittie appears click "fullscreen", go fullscreen click "draw raf", kittie appears go space original safari was, showing "click exit fullscreen mode", click anywhere, out fullscreen click "draw raf", nothing happens what handling click calling: window.requestanimationframe(draw); which draws on canvas context: function draw() { ctx.drawimage(img, math.random()*500|0, math.random()*400|0, 100, 100); } i checked .hidden , .visibilitystate, updated correctly. tested on osx 10.9.3, safari 7.0.4 (9537.76.4). has workaround/solution other switching old settimeout? this sounds webkit bug 88940 : using reque
Read more

Python ctypes access violation with const pointer arguments -

i have api i'm trying wrap in python (2.7.6 on win7) code using ctypes. here's api: client_dllfunc bool clientapi search_exporttoclipcopy(clienthsearch handle, int channel, lpctstr filename, const time_t& from, const time_t& to, const bool* cameras, int length, bool usepassword, lpctstr password, bool includetextin = false, bool excludeplayer = false); the issue i'm having cameras argument; , i've had issue other const pointer arguments well. here's how i'm wrapping api: def search_exporttoclipcopy(self, hsearch, csearch, filename, tfrom, tto, cameras, length, usepassword, password, includetextin=true, excludeplayer=false): exporttoclipcopy = self.sdkdll.search_exporttoclipcopy exporttoclipcopy.argtypes = [c_int, c_int, c_wchar_p, c_long, c_long, pointer(c_bool), c_int, c_bool, c_wchar_p, c_bool, c_bool] exporttoclipcopy.restype = c_bool exporttoclipcopy(hsearch, csearch, filename, tfrom, tto, cameras, length, usepassword, pass
Read more