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Hey everybody this is Caleb with deps slopes and welcome to the very last lesson in the core data section.



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We're going to make a function here that will allow us to set goal progress update ourselves and we're



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also going to go ahead and animate in a beautiful complete goal or goal complete view when we are done



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completing our goal it's going to be awesome.



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So let's pull open that project.



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Let's go to main storyboard and we're actually going to add in a view in Interface Builder.



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And the reason I'm doing this and not instantiating it programmatically is because there is a weird



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bug with the way that views are loaded in table cells.



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It seems to favor an iPhone 7 frame size and on an iPhone 7 plus it causes issues that issue doesn't



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happen when it's built in Interface Builder so that's why we're building it this way.



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Otherwise I would absolutely be building it programmatically.



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But for now we're just going to drag a view onto our cell.



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We're going to drag a label onto it.



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We're going to set up an outlet and just tell when or when it should be shown or hidden.



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So go ahead and drag on a view onto your table view cell make sure that you don't land it in one of



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the stack views then it's going to be on top of everything just by the way pull it so that it fits the



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UI view of the table view cell completely.



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And then we're going to actually pin it in place on all four points make sure that it's zero.



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OK.



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Add four constraints then we're going to set the background color to our yellowish orange and we're



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going to set the alpha channel of this color to actually be 75.



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Let's just go ahead and enter that manually there 75 and what we're going to do next is we're going



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to drag on a UI label and we're going to drop it on the top of that view and center it.



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OK.



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So that looks great.



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Let's change the font from this ugly system font to Avenir next.



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Not Avenir Avenir next.



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Beautiful.



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And we're going to set this to be heavy.



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It's going to be very big and celebratory and we're going to make the font size 30.



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It looks great.



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Now change the color to white and we're going to go ahead and stretch this out nicely.



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There we go.



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We're going to center it in just a second but we're going to just say goal complete.



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All right.



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This is just like a big celebration like you did.



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Awesome.



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OK super cool.



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So now go ahead and center that font center the label here and you know what it's looking like the color



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here might need to actually be more like 80 percent opacity.



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Just to give it a little bit more balance there.



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That looks pretty good.



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Now for the label.



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We're going to just go ahead and pin this horizontally and vertically in the container.



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That looks great.



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So now go ahead and click on the assistant editor and we're going to go ahead and click on the cell



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and find gold cell.



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Then we're going to go ahead and go find the view for the gold cell here.



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And now we need to make another Iby outlet.



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This new view we need to basically connect and then hide.



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But then after it high we're going to go ahead and show depending on the progress of our goal.



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So go ahead and drag right click and drag and we're just going to say completion view we'll call it



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completion view and when we can figure this sell We're going to use the completion value and the goal



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progress to tell whether or not we can show it or not.



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So go ahead and type if goal.



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The one we passed in when we're configuring If goal dot goal progress is equal to goal dot goal completion



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value meaning if we've made it if we've completed our goal we're going to go ahead and say self completion



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view is hidden equals false meaning we're going to show it else meaning if it's not equal if it's less



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then we're going to go ahead and say self completion view is hidden equals true.



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OK.



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So it's going to hide if it's not complete it will show if it is complete.



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Simple is that.



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That's pretty easy.



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But now we need to go in and we need to write a new function that's going to allow us to set progress



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and update the progress label.



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OK so this number should change every time that we add one.



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So select go Visi and you can go ahead and close the assistant editor for now what we're going to do



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is we're going to write a function that's going to allow us to set progress.



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So go into your extension and type phunk set.



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And we're going to just say progress for goal progress for goal and we're going to use an internal parameter



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of progress.



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And we're just going to pass in an int 32.



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OK.



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Because the progress Remember needs to be set as in 32.



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We also want to call this at an index path and we're going to just use an internal parameter here called



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index path of type index path.



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Cool.



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So that's great.



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Just like all the other functions we need a managed context so I'm actually just going to copy and paste



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this here.



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We just need a managed context.



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We're going to go ahead and in order to find the goal that we want to set the value we're going to get



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the current goal from the index path.



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OK.



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So let's say that I want to modify the goal at the third index path.



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We're going to pass that in and we can get that by saying Let current or maybe let chosen goal equals



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goals.



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And we're going to pull out the one index path and we're going to access the ROE So we pull out the



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chosen goal at maybe the third row the fourth or the fifth row.



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Now we're going to basically create two properties here that's going to hold the progress and the completion



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value then we're going to compare the two.



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And if it is less than the completion we're going to go ahead and update the goal progress.



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We have an attribute in our entity here that allows us to set goal progress if the current progress



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is less than the amount that we need to complete the goal.



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We're going to go ahead and update the current goal by 1 otherwise we're going to go ahead and we're



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going to just return and get out of this function.



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So let's do that now.



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If chosen goal datt go progress is less than the chosen goal completion value meaning if maybe we've



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only completed three out of seven then what we're going to do is we're going to say current or chosen



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goal dot goal progress equals goal dot goal progress plus 1.



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Okay.



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We're just going to add one.



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Super easy.



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Now with this in mind we don't really need to pass in a value of progress because we're just going to



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pass in one every time.



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So let's get rid of that.



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But maybe we can call set progress that's a little better set progress at the next path.



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We're going to go ahead and call chosen gold gold progress we're going to increment that by one every



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single time.



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Otherwise if it is more than or equal to we're going to go ahead and just return and get out of this



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function.



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Simple as that.



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Now we have modified this we've set new values but it's worthless unless we call save on the Manage



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context so we have passed this in we've pulled it from the managed context.



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Now we're going to use a do and catch block to go ahead and do what we need to do.



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So just like below we're going to call try manage context not safe.



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OK and of course it throws.



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So we're going to use Debug print debug description debug print and we're going to say could not set



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progress



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and we're going to go ahead and we're going to pull out the error from the throw the error that's thrown



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and we're going to print out it's localized description OK.



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That's it.



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And you know what.



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While we're here.



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Why don't we print out



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successfully set progress.



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And of course if you were to ever to push an app to production you would go back and remove all these



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print statements.



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But you know and for the catching of errors you would want to display those on the screen but for this



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app we're just going to use the console because that's fine for us for now.



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But now we have a function that can set progress for us.



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How cool is that.



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Literally all we need to do now is we need to call set progress and we need to reload the row that we



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have set.



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It's that easy.



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So let's do that by creating our ad progress action.



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So go ahead and type let add.



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Action equals UI.



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Table View row action.



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GUYS THIS IS SERIOUSLY JUST like we did it's so easy.



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We're going to call it we're going to give it a style We're going to give it a title and we're going



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to use its handler to choose the proper one that we've selected at that certain index path in the table



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view.



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Now the the style we can just call normal because we're not destroying anything we're not doing anything



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is just a normal button.



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The title we're just going to say add one in caps and press enter on the handler.



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Now just like above we get a row action so call it row action.



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And for the index path just call index path and inside of this closure is where we're going to set our



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progress.



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So inside here we can call self set progress at index path just like that.



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It's that easy we just set progress.



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We just added one.



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OK now we don't want to reload the whole table view because we don't need to that's a waste of resources.



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What we can do is we can call table view not reload rows and index path and we can pass in the index



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path so that it can just reload that one row that we've modified.



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So go ahead and pass in an array containing index path.



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Now you see that it's asking for an array of index paths you can put in multiple index paths but we're



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just going to use our singular index path from this single action.



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And the UI table view row animation is just automatic.



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Just like the other one.



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OK we get a nice little fade out a nice little animation.



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And of course we need to now give it a background color.



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So go ahead and type add action.



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Background color and we'll just use a color literal.



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I love color literals they're so much easier than color or you are used to trying to use hex values



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in code it's just ugly.



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So I'm going to use my nice little orangey yellow color there and I'm going to return the action as



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well because it's an array.



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So we can return multiple actions.



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You can do a lot of actions in one table VSL you could do three four five whatever.



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We're just going to do two though.



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But let's think about this when we tap at action.



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It should set the progress k.



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Meaning it's going to take the current goal progress.



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It's going to add one as long as it's less than the completion value if it is less than the completion



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value it's going to do that as soon as we get to the completion value once it's equal it's going to



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start returning so we can't set progress anymore.



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That's good.



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And then as soon as go progress is equal to completion value it's going to fade in the nice little view



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that we created here.



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The orange one that says school complete.



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So let's go ahead let's build and run it.



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Let's create a goal and let's swipe an ad to see if we can properly update our progress here.



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Ok cool.



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So we have no goals.



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Let's go ahead and let's create one maybe.



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Go jogging twice a day and that will be a short.



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Well no it's a long term goal let's go jogging.



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Well now short term I don't want to jog twice a day for very long.



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So choose short term and let's do that for three days.



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Press create goal and there's our goal.



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If I swipe we get our second action add one and it has that nice background.



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Now when I press this we should set progress and reload this cell.



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Let's try it look at that the progress is updated from core data.



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Now let's let's quit out.



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OK.



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Let's go ahead and let's double tap the home button here let's quit out all the way.



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Let's check to make sure that this is being persisted by core data.



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It is.



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Look at that.



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We get all of our data here persisted by core data.



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We set three here.



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So let's go ahead and let's see once we get to 3 It should show up complete.



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Look at that.



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That is amazing.



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Now I am seeing a problem here it appears that we are somehow below our labels here we don't want that.



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So let's go ahead and let's figure out what the deal is.



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Because it appears to be above everything.



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But you know what we may actually have to pull it up and out of everything and then drop it back in



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the table view cell to make sure that it's good to go.



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So let's let's drop it in and let's set the constraints here to be 0 0 0 and 0.



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Sometimes we have some weird constraint issues.



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OK.



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Awesome.



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So it looks like we accidentally we're not doing it the right way.



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But now it's on top of everything.



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Let's build and run.



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And let's see if it shows up on top.



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Awesome.



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OK beautiful.



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That's exactly how it's supposed to look.



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Complete.



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And now that it's done we can get rid of it.



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Let's create some more.



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I'm just going to type random stuff here.



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Let's do maybe to cool this out another one.



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Long term this time.



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And how about for sweet.



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OK let's set these one two three four.



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It's complete.



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Beautiful.



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Let's set the food is great.



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What.



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That's weird.



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How about to create a goal.



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Awesome guys.



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Do you see this.



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It's showing up everything is loading perfectly.



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00:14:01,870 --> 00:14:03,440

It looks amazing.



240

00:14:03,460 --> 00:14:04,830

Guys I love this app.



241

00:14:04,840 --> 00:14:09,280

We can go ahead and set goals we can save them we can delete them.



242

00:14:09,340 --> 00:14:10,420

Our app is done guys.



243

00:14:10,430 --> 00:14:11,880

Goalpost is finished.



244

00:14:11,890 --> 00:14:14,880

This is an app you could put up on to the App Store right now.



245

00:14:15,100 --> 00:14:17,270

So give yourselves a big round of applause.



246

00:14:17,320 --> 00:14:18,390

Pat yourself on the back.



247

00:14:18,400 --> 00:14:19,450

Congratulate yourself.



248

00:14:19,450 --> 00:14:21,140

Go get a drink go get some food.



249

00:14:21,220 --> 00:14:22,210

Give your friend a high five.



250

00:14:22,210 --> 00:14:23,620

Give yourself a high five.



251

00:14:23,620 --> 00:14:24,460

Amazing work guys.



252

00:14:24,460 --> 00:14:31,410

We have built an app that uses core data to save to fetch to retrieve to remove all kinds of data.



253

00:14:31,420 --> 00:14:33,910

You can do all kinds of things now with core data.



254

00:14:33,910 --> 00:14:39,010

It's an amazing way to have persistent storage in iOS and I'm really really just super stoked that you



255

00:14:39,010 --> 00:14:40,750

guys took this section of the course.



256

00:14:40,810 --> 00:14:41,690

Amazing work.



257

00:14:41,710 --> 00:14:45,630

And let's head over to a quick little challenge video where I'm going to ask you to extend this app.