Domestic Violence: Domestic Assault Charges Advice

My question involves criminal law for the state of: me and my girlfriend dating for just over a year and we had an argument recently where i pushed her and she hit a glass bottle over my head which did not break and a scratch on my neck. The neighbour called the police and we were both arrested and taken to the police station. We were both released early with me having no charges and her having two counts of charges. One just for assault and the other assault with weapon. I was asked to go in for photographs with i denied because i dont want my girlfriend charged. Our court date is scheduled for next month. Will this case be thrown out? Can i speak to the crown so the restrictions to see her will be taken off before the trial? i love my gf to death and i am going to testify in court on the day of the trial that she is no threat to me and she was drinking at the time. I just want her to have a clear criminal record as she is only 20 and be able to see me. I dont want to wait for a month and i am wondering if i can get these charges and restrictions dropped if i talk to a crown sooner or does this case have to wait till the day of the trial. pls help!

We both live in separate houses and in the city of mississauga in ontario and she has no criminal record